Revert missing item count rendering changes from #1044 (#1091)

Co-authored-by: Martin Robertz <dream-master@gmx.net>
Co-authored-by: slprime <31038811+slprime@users.noreply.github.com>

.github/ISSUE_TEMPLATE/000-report-bug.yml

@@ -33,12 +33,10 @@ body:
       description: What Java version are you using? It's worth mentioning that if you play on Java9+ you should try update to latest minor release (e.g. prefer Java 17.0.6 over 17.0.2) of that version.
       options:
         - Java 8
-        - Java 9
-        - Java 11
         - Java 17
-        - Java 19
-        - Java 20
         - Java 21
+        - java 25
+        - java 26
         - Other (Please Specify)
     validations:
       required: true

.gitignore

@@ -28,6 +28,7 @@ whitelist.json
 *.iws
 src/main/resources/mixins.*([!.]).json
 *.bat
+*.sh
 *.DS_Store
 !gradlew.bat
 .factorypath
@@ -35,4 +36,5 @@ addon.local.gradle
 addon.local.gradle.kts
 addon.late.local.gradle
 addon.late.local.gradle.kts
-layout.json
+layout.json
+

README.md

@@ -1,5 +1,7 @@
 # NotEnoughItems Unofficial - By the GTNH Team
 
+🌐 **Languages:** [English](README.md) | [Українська](README_uk.md)
+
 A continuation of NotEnoughItems for 1.7.10 by the developers of Gregtech: New Horizons modpack, with features either inspired and/or backported from JustEnoughItems
 
 We've tested this against all of the mods included in GTNH, as well as a limited set of other mods (like Reika's mods). Every effort has been made to maintain backwards compatibility, however the focus is on the mods contained in the GTNH modpack.

README_uk.md

@@ -0,0 +1,93 @@
+# NotEnoughItems Unofficial — від команди GTNH
+
+🌐 **Мови:** [English](README.md) | [Українська](README_uk.md)
+
+Продовження модифікації NotEnoughItems для 1.7.10 від розробників збірки GregTech: New Horizons із функціями, натхненними та/або бекпортованими з JustEnoughItems.
+
+Ми протестували цю версію з усіма модами, що входять до GTNH, а також із обмеженим набором інших модів (як-от моди від Reika). Було докладено всіх зусиль для збереження зворотної сумісності, однак основну увагу приділено модам зі збірки GTNH.
+
+Якщо у вас виникли проблеми з NEI за межами збірки GTNH, ви можете повідомити про них у [GitHub-репозиторії GTNH NEI](https://github.com/GTNewHorizons/NotEnoughItems).
+
+## Нові можливості:
+
+* Швидкодія
+  - Використовує паралельний потік для пошуку у списку предметів на кількох ядрах процесора, що в середньому пришвидшує пошук у 2–6 разів.
+  - Завантажує обробники рецептів паралельно.
+* Текстове поле пошуку з більшістю очікуваних функцій — переміщення курсора вперед/назад, виділення тексту тощо.
+* Закладки! Перебуваєте у процесі крафту? Додайте потрібний рецепт до закладок за допомогою клавіші «A» або налаштуйте власну клавішу.
+* Перемикання видимості панелі закладок. Гаряча клавіша за замовчуванням — `B`. Меню «Підгрупи предметів» доступне лише тоді, коли панель закладок прихована.
+* Кнопки утиліт та читів вирівнюються в ряд та переносяться на новий рядок залежно від розміру графічного інтерфейсу.
+* Список предметів (`ItemList`) більше не генерується повторно з `ItemRegistry` під час кожного відкриття інвентарю.
+* Вкладки у стилі JEI (або творчого режиму) [За бажанням]. Примітка: вимагає явної підтримки для рендерингу `ItemStack`, інакше використовуються перші дві літери назви обробника.
+* Вкладки/обробники завантажуються з конфігураційного CSV-файлу в JAR-архіві (або за бажанням з папки `config`). Для авторів модів доступні IMC-повідомлення з NBT-даними `registerHandlerInfo` та `removeHandlerInfo` для додавання інформації про обробники з використанням тих самих полів, що й у CSV-файлі.
+* Пошук за допомогою синтаксису `@[Мод]->[предмет]`. Наприклад: `@Mod.gregtech->iron ingot`.
+* Перемикання між режимами рецептів, утиліт та читів за допомогою CTRL + ЛКМ по іконці гайкового ключа.
+* Інструменти/предмети з GT5u та інструменти з GT6 тепер мають коректно працювати з функцією накладення та перенесення рецепта.
+
+### Обробник інформаційних сторінок
+Хочете додати інформацію про блок чи предмет, не створюючи для нього величезну підказку? Ви можете додати інформацію про будь-який блок чи предмет, зареєструвавши його в обробнику інформації.
+
+Інформаційні сторінки відображаються під час пошуку рецептів або способів використання відповідного предмета. Усі відповідні предмети будуть циклічно змінюватися у верхній частині інформаційної сторінки.
+
+Ваш мод може викликати:
+```java
+FMLInterModComms.sendMessage("NotEnoughItems", "addItemInfo", nbt);
+```
+Де `nbt` — це `NBTTagCompound`, відформатований, як описано нижче.
+
+| Тег              | Тип                            | Опис                                                                                                                                                                                                                                                                 |
+|------------------|--------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| `filter`         | `String`                       | Текстовий фільтр для визначення предметів, для яких має відображатися ця інформаційна сторінка.<br/>Можна використовувати `modname:itemname`, метадані, теги OreDictionary та регулярні вирази. Повний формат можна переглянути у `config/NEI/collapsibleitems.cfg`. |
+| `page` / `pages` | `String` / `String NBTTagList` | Безпосередньо текст для відображення. Різницю між одно- та багатосторінковими повідомленнями див. нижче.<br/>Обидва формати підтримують автоматичний переклад наданих рядків.                                                                                        |
+
+#### Односторінковий формат
+
+Використовуйте текстовий тег `"page"`, якщо хочете додати лише одну сторінку інформації:
+```java
+NBTTagCompound tag = new NBTTagCompound();
+tag.setString("filter", "minecraft:log 3");
+tag.setString("page", "Exotic wood found in tropical climates.");
+
+FMLInterModComms.sendMessage("NotEnoughItems", "addItemInfo", tag);
+```
+
+#### Багатосторінковий формат
+
+Використовуйте тег `"pages"` як `NBTTagList` із рядків, якщо потрібно додати понад одну сторінку:
+```java
+NBTTagCompound tag = new NBTTagCompound();
+tag.setString("filter", "minecraft:diamond_sword");
+
+NBTTagList pages = new NBTTagList();
+pages.appendTag(new NBTTagString("A powerful melee weapon."));
+pages.appendTag(new NBTTagString("Can be enchanted for extra effects."));
+
+tag.setTag("pages", pages);
+
+FMLInterModComms.sendMessage("NotEnoughItems", "addItemInfo", tag);
+```
+* Кожен елемент списку — це одна сторінка.
+* Сторінки з’являтимуться в NEI з кнопками для їх гортання.
+
+#### Відповідність предметів
+
+Усі предмети, що відповідають фільтру `filter`, відображатимуть вашу інформаційну сторінку. Повний формат фільтра див. у `config/NEI/collapsibleitems.cfg`.
+
+#### Файл конфігурації інформації про предмети
+
+Якщо ви творець збірки модів і хочете створити власні інформаційні сторінки для предметів, їх можна легко додати у файлі `config/NEI/informationpages.cfg`, де також наведено ще кілька прикладів.
+
+## Інші примітки:
+
+* Вилучено стиль TMI
+* Вилучено збереження/завантаження стану інвентарю
+
+## Ліцензія
+
+Авторські права на модифікації від команди GTNH (c) 2019-2024 належать mitchej123 та команді GTNH.
+
+Поширюється за ліцензією LGPL-3.0 або новішої версії — використовуйте цей код на власний розсуд, але, будь ласка, діліться з розробниками будь-якими внесеними вами змінами.
+
+Окремі частини коду натхненні, запозичені або бекпортовані з [JEI](https://github.com/mezz/JustEnoughItems/tree/1.12) за ліцензією MIT.
+
+Авторські права на оригінальний код (c) 2014-2015 належать mezz; код поширювався за ліцензією MIT.

dependencies.gradle

@@ -1,12 +1,17 @@
 // Add your dependencies here
+configurations.create('gtnhlibEmbed') {
+    canBeConsumed = false
+    canBeResolved = true
+}
 
 dependencies {
-    api('com.github.GTNewHorizons:CodeChickenCore:1.4.10:dev')
-    devOnlyNonPublishable('com.github.GTNewHorizons:GTNHLib:0.9.13:dev')
+    api('com.github.GTNewHorizons:CodeChickenCore:1.4.22:dev')
+    devOnlyNonPublishable('com.github.GTNewHorizons:GTNHLib:0.11.54:dev')
 
     shadowImplementation('org.apache.commons:commons-csv:1.10.0')
 
     compileOnly('maven.modrinth:forge-essentials:7.5.1')
+    compileOnly('com.cardinalstar.cubicchunks:CubicChunks1710:v0.1.14-alpha:dev')
 
     antlr('org.antlr:antlr4:4.13.2')
     shadowImplementation('org.antlr:antlr4-runtime:4.13.2')
@@ -17,4 +22,21 @@ dependencies {
 
     testRuntimeOnly('org.junit.platform:junit-platform-launcher')
     testRuntimeOnly("org.lwjgl.lwjgl:lwjgl:2.9.3");
+
+    compileOnly("com.github.GTNewHorizons:GTNHLib:0.11.54") { transitive = false }
+    gtnhlibEmbed("com.github.GTNewHorizons:GTNHLib:0.11.54") { transitive = false }
+}
+
+def embedArchiveOperations = gtnhGradle.archiveOperations
+def gtnhlibEmbedContents = configurations.gtnhlibEmbed.elements.map { files ->
+    files.collect { embedArchiveOperations.zipTree(it.asFile) }
+}
+
+[tasks.jar, tasks.shadowJar].each {
+    it.configure {
+        from(gtnhlibEmbedContents) {
+            include 'com/gtnewhorizon/gtnhlib/color/ColorResource.class'
+            include 'com/gtnewhorizon/gtnhlib/color/ColorResource$*.class'
+        }
+    }
 }

gradle.properties

@@ -186,6 +186,11 @@ modrinthRelations = required-project\:codechickencore-unofficial
 # Leave this empty if you don't want to publish on CurseForge.
 curseForgeProjectId = 358228
 
+# Comma-separated supported CurseForge environments: client, server (case-insensitive).
+# Use client or server for mods that only support one environment. Defaults to client,server.
+# These tags describe where the mod can run, not whether installation is required on both sides.
+curseForgeEnvironments = client,server
+
 # The project's relations on CurseForge. You can use this to refer to other projects on CurseForge.
 # Syntax: type1:name1;type2:name2;...
 # Where type can be one of [requiredDependency, embeddedLibrary, optionalDependency, tool, incompatible],

gradle/gradle-daemon-jvm.properties

@@ -1,12 +1,12 @@
 #This file is generated by updateDaemonJvm
-toolchainUrl.FREE_BSD.AARCH64=https\://api.foojay.io/disco/v3.0/ids/df211d3c3eefdc408b462041881bc575/redirect
-toolchainUrl.FREE_BSD.X86_64=https\://api.foojay.io/disco/v3.0/ids/b41931cf1e70bc8e08d7dd19c343ef00/redirect
-toolchainUrl.LINUX.AARCH64=https\://api.foojay.io/disco/v3.0/ids/4945f00643ec68e7c7a6b66f90124f89/redirect
-toolchainUrl.LINUX.X86_64=https\://api.foojay.io/disco/v3.0/ids/93aeea858331bd6bb00ba94759830234/redirect
-toolchainUrl.MAC_OS.AARCH64=https\://api.foojay.io/disco/v3.0/ids/3426ffcaa54c3f62406beb1f1ab8b179/redirect
-toolchainUrl.MAC_OS.X86_64=https\://api.foojay.io/disco/v3.0/ids/f636c800fdb3f9ae33f019dfa048ba72/redirect
-toolchainUrl.UNIX.AARCH64=https\://api.foojay.io/disco/v3.0/ids/df211d3c3eefdc408b462041881bc575/redirect
-toolchainUrl.UNIX.X86_64=https\://api.foojay.io/disco/v3.0/ids/93aeea858331bd6bb00ba94759830234/redirect
-toolchainUrl.WINDOWS.AARCH64=https\://api.foojay.io/disco/v3.0/ids/3cd7045fca9a72cd9bc7d14a385e594c/redirect
-toolchainUrl.WINDOWS.X86_64=https\://api.foojay.io/disco/v3.0/ids/552c7bffe0370c66410a51c55985b511/redirect
+toolchainUrl.FREE_BSD.AARCH64=https\://api.foojay.io/disco/v3.0/ids/539ea72837c6244075f8ee037babc29e/redirect
+toolchainUrl.FREE_BSD.X86_64=https\://api.foojay.io/disco/v3.0/ids/876dbbf00bf4ef6190f7da074cee903a/redirect
+toolchainUrl.LINUX.AARCH64=https\://api.foojay.io/disco/v3.0/ids/539ea72837c6244075f8ee037babc29e/redirect
+toolchainUrl.LINUX.X86_64=https\://api.foojay.io/disco/v3.0/ids/876dbbf00bf4ef6190f7da074cee903a/redirect
+toolchainUrl.MAC_OS.AARCH64=https\://api.foojay.io/disco/v3.0/ids/9064f22734b42ac03e85df04b632e167/redirect
+toolchainUrl.MAC_OS.X86_64=https\://api.foojay.io/disco/v3.0/ids/4d0277c49991306ac78048580fe34bcf/redirect
+toolchainUrl.UNIX.AARCH64=https\://api.foojay.io/disco/v3.0/ids/539ea72837c6244075f8ee037babc29e/redirect
+toolchainUrl.UNIX.X86_64=https\://api.foojay.io/disco/v3.0/ids/876dbbf00bf4ef6190f7da074cee903a/redirect
+toolchainUrl.WINDOWS.AARCH64=https\://api.foojay.io/disco/v3.0/ids/a9fa3b809e484a1e1ac4308a5dda661a/redirect
+toolchainUrl.WINDOWS.X86_64=https\://api.foojay.io/disco/v3.0/ids/aa99913fa6d767d899ffc96082da01ca/redirect
 toolchainVersion=25

gradle/wrapper/gradle-wrapper.properties

@@ -1,7 +1,9 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.2.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.7.1-bin.zip
 networkTimeout=10000
+retries=0
+retryBackOffMs=500
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -20,7 +20,7 @@
 
 ##############################################################################
 #
-#   Gradle start up script for POSIX generated by Gradle.
+#   gradlew start up script for POSIX generated by Gradle.
 #
 #   Important for running:
 #
@@ -29,7 +29,7 @@
 #       bash, then to run this script, type that shell name before the whole
 #       command line, like:
 #
-#           ksh Gradle
+#           ksh gradlew
 #
 #       Busybox and similar reduced shells will NOT work, because this script
 #       requires all of these POSIX shell features:
@@ -57,7 +57,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/3d91ce3b8caaf77ad09f381f43615b715b53f72c/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.

gradlew.bat

@@ -19,12 +19,12 @@
 @if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
 @rem
-@rem  Gradle startup script for Windows
+@rem  gradlew startup script for Windows
 @rem
 @rem ##########################################################################
 
-@rem Set local scope for the variables with windows NT shell
-if "%OS%"=="Windows_NT" setlocal
+@rem Set local scope for the variables, and ensure extensions are enabled
+setlocal EnableExtensions
 
 set DIRNAME=%~dp0
 if "%DIRNAME%"=="" set DIRNAME=.
@@ -51,7 +51,7 @@ echo. 1>&2
 echo Please set the JAVA_HOME variable in your environment to match the 1>&2
 echo location of your Java installation. 1>&2
 
-goto fail
+"%COMSPEC%" /c exit 1
 
 :findJavaFromJavaHome
 set JAVA_HOME=%JAVA_HOME:"=%
@@ -65,29 +65,18 @@ echo. 1>&2
 echo Please set the JAVA_HOME variable in your environment to match the 1>&2
 echo location of your Java installation. 1>&2
 
-goto fail
+"%COMSPEC%" /c exit 1
 
 :execute
 @rem Setup the command line
 
 
 
-@rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
+@rem Execute gradlew
+@rem endlocal doesn't take effect until after the line is parsed and variables are expanded
+@rem which allows us to clear the local environment before executing the java command
+endlocal & "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %* & call :exitWithErrorLevel
 
-:end
-@rem End local scope for the variables with windows NT shell
-if %ERRORLEVEL% equ 0 goto mainEnd
-
-:fail
-rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
-rem the _cmd.exe /c_ return code!
-set EXIT_CODE=%ERRORLEVEL%
-if %EXIT_CODE% equ 0 set EXIT_CODE=1
-if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
-exit /b %EXIT_CODE%
-
-:mainEnd
-if "%OS%"=="Windows_NT" endlocal
-
-:omega
+:exitWithErrorLevel
+@rem Use "%COMSPEC%" /c exit to allow operators to work properly in scripts
+"%COMSPEC%" /c exit %ERRORLEVEL%

settings.gradle

@@ -17,7 +17,7 @@ pluginManagement {
 }
 
 plugins {
-    id 'com.gtnewhorizons.gtnhsettingsconvention' version '2.0.19'
+    id 'com.gtnewhorizons.gtnhsettingsconvention' version '2.0.34'
 }
 
 

src/main/java/codechicken/nei/AutoFocusWidget.java

@@ -7,8 +7,10 @@ import java.util.ArrayList;
 import java.util.List;
 
 import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.GuiTextField;
 import net.minecraft.client.gui.inventory.GuiContainer;
 import net.minecraft.client.settings.GameSettings;
+import net.minecraft.util.ChatAllowedCharacters;
 
 import org.lwjgl.input.Keyboard;
 
@@ -30,6 +32,8 @@ public class AutoFocusWidget implements IContainerInputHandler {
 
     protected boolean autofocus = false;
     protected Point mouse;
+    protected Point pendingMouse;
+    protected GuiTextField textInputHolder;
 
     public AutoFocusWidget() {
         GuiContainerManager.addInputHandler(this);
@@ -38,32 +42,83 @@ public class AutoFocusWidget implements IContainerInputHandler {
     public void load(GuiContainer gui) {
         this.autofocus = LayoutManager.searchField.isVisible() && NEIClientConfig.searchWidgetAutofocus() != 0
                 && isAllowedGuiAutoSearchFocus(gui);
-        this.mouse = getMousePosition();
+        this.mouse = null;
+        this.pendingMouse = null;
+
+        if (this.autofocus) {
+            beginTextInput();
+        }
+    }
+
+    protected void beginTextInput() {
+        if (this.textInputHolder == null) {
+            this.textInputHolder = new GuiTextField(Minecraft.getMinecraft().fontRenderer, 0, 0, 0, 0);
+        }
+
+        this.textInputHolder.setFocused(true);
+    }
+
+    protected void endTextInput() {
+        if (this.textInputHolder != null) {
+            this.textInputHolder.setFocused(false);
+        }
+    }
+
+    public void guiTick() {
+        if (!this.autofocus) {
+            return;
+        }
+
+        final Point current = getMousePosition();
+
+        if (this.mouse == null) {
+            if (current.equals(this.pendingMouse)) {
+                this.mouse = current;
+            }
+
+            this.pendingMouse = current;
+        } else if (!this.mouse.equals(current)) {
+            cancel();
+        }
+    }
+
+    protected void cancel() {
+        if (this.autofocus) {
+            this.autofocus = false;
+            endTextInput();
+        }
     }
 
     @Override
     public boolean keyTyped(GuiContainer gui, char keyChar, int keyCode) {
 
         if (this.autofocus) {
-            this.autofocus = false;
-
-            if (!this.mouse.equals(getMousePosition())) {
-                return false;
-            }
 
             if (NEIClientConfig.searchWidgetAutofocus() == 2
                     && GameSettings.isKeyDown(Minecraft.getMinecraft().gameSettings.keyBindInventory)) {
+                cancel();
                 return false;
             }
 
             if (keyCode == Keyboard.KEY_RETURN || keyCode == Keyboard.KEY_NUMPADENTER
                     || keyCode == Keyboard.KEY_ESCAPE) {
+                cancel();
                 return false;
             }
 
+            if (!ChatAllowedCharacters.isAllowedCharacter(keyChar)) {
+                return false;
+            }
+
+            this.autofocus = false;
+
             LayoutManager.searchField.setFocus(true);
+            endTextInput();
+
+            final String oldText = LayoutManager.searchField.text();
             LayoutManager.searchField.handleKeyPress(keyCode, keyChar);
-            return true;
+
+            return !LayoutManager.searchField.text().equals(oldText);
         }
 
         return false;
@@ -76,13 +131,13 @@ public class AutoFocusWidget implements IContainerInputHandler {
 
     @Override
     public boolean mouseClicked(GuiContainer gui, int mousex, int mousey, int button) {
-        this.autofocus = false;
+        cancel();
         return false;
     }
 
     @Override
     public boolean mouseScrolled(GuiContainer gui, int mousex, int mousey, int scrolled) {
-        this.autofocus = false;
+        cancel();
         return false;
     }
 
@@ -91,22 +146,22 @@ public class AutoFocusWidget implements IContainerInputHandler {
 
     @Override
     public void onMouseClicked(GuiContainer gui, int mousex, int mousey, int button) {
-        this.autofocus = false;
+        cancel();
     }
 
     @Override
     public void onMouseDragged(GuiContainer gui, int mousex, int mousey, int button, long heldTime) {
-        this.autofocus = false;
+        cancel();
     }
 
     @Override
     public void onMouseScrolled(GuiContainer gui, int mousex, int mousey, int scrolled) {
-        this.autofocus = false;
+        cancel();
     }
 
     @Override
     public void onMouseUp(GuiContainer gui, int mousex, int mousey, int button) {
-        this.autofocus = false;
+        cancel();
     }
 
     protected boolean isAllowedGuiAutoSearchFocus(GuiContainer gui) {

src/main/java/codechicken/nei/BookmarkPanel.java

@@ -19,6 +19,7 @@ import net.minecraft.client.gui.inventory.GuiContainer;
 import net.minecraft.entity.player.InventoryPlayer;
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.util.EnumChatFormatting;
 
 import org.apache.commons.io.IOUtils;
 
@@ -184,27 +185,33 @@ public class BookmarkPanel extends PanelWidget<BookmarkGrid> {
         if (itemStack != null && this.grid.indexOf(groupId, itemStack, recipeId, false) == -1) {
             final boolean existsRecipe = recipeId != null
                     && this.grid.existsRecipe(recipeId, BookmarkGrid.DEFAULT_GROUP_ID);
-            final NBTTagCompound nbTag = StackInfo.itemStackToNBT(itemStack);
-            long count = nbTag.getInteger("Count");
-            long factor = existsRecipe ? Math.max(count, 1) : 1;
+            final Recipe recipe = Recipe.of(recipeId);
+            final BookmarkItem.Builder builder;
+
+            if (recipe != null) {
+                builder = BookmarkItem.builder(groupId, itemStack, recipe, BookmarkItemType.RESULT).multiplier(1);
+            } else if (recipeId != null) {
+                builder = BookmarkItem.builder(groupId, itemStack).recipeId(recipeId)
+                        .factor(StackInfo.getAmount(itemStack)).multiplier(1);
+            } else {
+                builder = BookmarkItem.builder(groupId, itemStack).factor(1).multiplier(StackInfo.getAmount(itemStack));
+            }
 
             if (existsRecipe) {
+                builder.type(BookmarkItemType.RESULT);
+
                 for (int i = 0; i < this.grid.size(); i++) {
                     if (this.grid.getBookmarkItem(i).equalsRecipe(recipeId, groupId)) {
-                        count *= this.grid.getBookmarkItem(i).getMultiplier();
+                        builder.multiplier(this.grid.getBookmarkItem(i).getMultiplier());
                         break;
                     }
                 }
+
+            } else {
+                builder.type(BookmarkItemType.ITEM);
             }
 
-            this.grid.addItem(
-                    BookmarkItem.of(
-                            groupId,
-                            StackInfo.withAmount(itemStack, count),
-                            factor,
-                            recipeId,
-                            existsRecipe ? BookmarkItemType.RESULT : BookmarkItemType.ITEM),
-                    true);
+            this.grid.addItem(builder.build(), true);
             return true;
         }
 
@@ -212,9 +219,11 @@ public class BookmarkPanel extends PanelWidget<BookmarkGrid> {
     }
 
     public boolean addRecipe(Recipe recipe, int multiplier, int groupId) {
+        if (recipe == null) return false;
+
         final RecipeId recipeId = recipe.getRecipeId();
 
-        if (recipe != null && this.grid.getGroup(groupId) != null && !this.grid.existsRecipe(recipeId, groupId)) {
+        if (this.grid.getGroup(groupId) != null && !this.grid.existsRecipe(recipeId, groupId)) {
             this.grid.addRecipe(recipe, multiplier, groupId);
             return true;
         }
@@ -245,15 +254,22 @@ public class BookmarkPanel extends PanelWidget<BookmarkGrid> {
                 ItemStack stack = recipeId.getResult();
 
                 if (stack != null && uniqueRecipe.add(recipeId)) {
-                    this.grid.addItem(
-                            BookmarkItem
-                                    .of(groupId, stack, StackInfo.getAmount(stack), recipeId, BookmarkItemType.ITEM),
-                            true);
+                    final Recipe recipe = Recipe.of(recipeId);
+                    final BookmarkItem.Builder builder;
+
+                    if (recipe != null) {
+                        builder = BookmarkItem.builder(groupId, stack, recipe, BookmarkItemType.RESULT);
+                    } else {
+                        builder = BookmarkItem.builder(groupId, stack).recipeId(recipeId)
+                                .factor(StackInfo.getAmount(stack));
+                    }
+
+                    this.grid.addItem(builder.multiplier(1).type(BookmarkItemType.ITEM).build(), true);
                     uniqueStack.add(stack);
                 }
 
             } else {
-                ItemStack stack = extractItem(item);
+                final ItemStack stack = extractItem(item);
 
                 if (stack != null && !uniqueStack.contains(stack)) {
                     this.grid.addItem(BookmarkItem.of(groupId, stack), true);
@@ -510,8 +526,7 @@ public class BookmarkPanel extends PanelWidget<BookmarkGrid> {
     }
 
     @Override
-    public Rectangle4i calculateBounds() {
-        final GuiContainer gui = NEIClientUtils.getGuiContainer();
+    public Rectangle4i calculateBounds(GuiContainer gui) {
         final int maxWidth = (gui.width - 176) / 2 - PADDING * 2;
         final int maxHeight = gui.height - PADDING * 2;
         final int freeSpace = (gui.width - gui.xSize) / 2 - PADDING * 2;
@@ -557,9 +572,10 @@ public class BookmarkPanel extends PanelWidget<BookmarkGrid> {
 
             return;
         } else if (this.sortableGroup != null) {
-            final int overRowIndex = grid.getRowIndex(mousey);
+            final int overRowIndex = Math.min(grid.getRowIndex(mousey), grid.getRows() - 1);
 
-            if (overRowIndex >= 0 && this.sortableGroup.groupId != this.grid.getRowGroupId(overRowIndex)) {
+            if (overRowIndex >= 0 && !isOverNamespaceControls(mousex, mousey)
+                    && !this.sortableGroup.matches(this.grid, this.grid.getRowGroupId(overRowIndex))) {
                 this.grid.moveGroup(this.sortableGroup, overRowIndex);
             }
 
@@ -784,15 +800,15 @@ public class BookmarkPanel extends PanelWidget<BookmarkGrid> {
                     NEIMouseUtils.getKeyName(NEIMouseUtils.MOUSE_BTN_RMB),
                     NEIClientUtils.translate("bookmark.group.toggle_crafting_chain"));
             hotkeys.put(
-                    NEIClientConfig.getKeyName("gui.remove_recipe"),
+                    KeyManager.getKeyName("bookmark.remove_recipe", NEIClientUtils.SHIFT_HASH),
                     NEIClientUtils.translate("bookmark.group.remove_recipe"));
 
             if (BookmarkContainerInfo.getBookmarkContainerHandler(NEIClientUtils.getGuiContainer()) != null) {
                 hotkeys.put(
-                        NEIClientConfig.getKeyName("gui.bookmark_pull_items"),
+                        KeyManager.getKeyName("bookmark.pull_items"),
                         NEIClientUtils.translate("bookmark.group.pull_items"));
                 hotkeys.put(
-                        NEIClientConfig.getKeyName("gui.bookmark_pull_items", NEIClientUtils.SHIFT_HASH),
+                        KeyManager.getKeyName("bookmark.pull_items", NEIClientUtils.SHIFT_HASH),
                         NEIClientUtils.translate("bookmark.group.pull_items_shift"));
             }
 
@@ -888,19 +904,21 @@ public class BookmarkPanel extends PanelWidget<BookmarkGrid> {
     }
 
     private List<String> recipeChainTooltip(int groupId, List<String> currenttip) {
-        boolean crafting = this.grid.getGroup(groupId).crafting != null;
+        boolean crafting = this.grid.isCraftingMode(groupId);
 
         if (this.recipeChainTooltipLineHandler == null || this.recipeChainTooltipLineHandler.groupId != groupId
                 || this.recipeChainTooltipLineHandler.crafting != crafting) {
-            this.recipeChainTooltipLineHandler = new RecipeChainTooltipLineHandler(
-                    groupId,
-                    crafting,
-                    this.grid.createRecipeChainMath(groupId));
+            final RecipeChainMath recipeChainMath = this.grid.createRecipeChainMath(groupId);
+
+            if (recipeChainMath != null) {
+                this.recipeChainTooltipLineHandler = new RecipeChainTooltipLineHandler(
+                        groupId,
+                        crafting,
+                        recipeChainMath);
+            }
         }
 
-        if (this.recipeChainTooltipLineHandler != null) {
-            currenttip.add(GuiDraw.TOOLTIP_HANDLER + GuiDraw.getTipLineId(this.recipeChainTooltipLineHandler));
-        }
+        currenttip.add(GuiDraw.TOOLTIP_HANDLER + GuiDraw.getTipLineId(this.recipeChainTooltipLineHandler));
 
         return currenttip;
     }
@@ -926,6 +944,17 @@ public class BookmarkPanel extends PanelWidget<BookmarkGrid> {
 
         if (slot != null) {
 
+            if (slot.getBookmarkItem().chance != PositionedStack.CHANCE_FULL) {
+                final String chanceText = NEIClientUtils
+                        .formatChance(slot.getBookmarkItem().chance / (float) PositionedStack.CHANCE_FULL);
+                currenttip.add(
+                        1,
+                        EnumChatFormatting.GRAY + NEIClientUtils.translate(
+                                slot.getType() == BookmarkItemType.INGREDIENT ? "recipe.badge.chance.consume"
+                                        : "recipe.badge.chance.output",
+                                chanceText));
+            }
+
             if (slot.getType() == BookmarkItemType.INGREDIENT && slot.getRecipeId() != null
                     && slot.getBookmarkItem().permutations.size() > 1) {
                 RecipeId recipeId = slot.getRecipeId();
@@ -994,14 +1023,18 @@ public class BookmarkPanel extends PanelWidget<BookmarkGrid> {
         this.mouseDownSlot = -1;
     }
 
-    @Override
-    public boolean onMouseWheel(int shift, int mousex, int mousey) {
-
-        if ((!inEditingState() || this.sortableGroup != null) && new Rectangle4i(
+    private boolean isOverNamespaceControls(int mousex, int mousey) {
+        return new Rectangle4i(
                 namespacePrev.x,
                 namespacePrev.y,
                 namespaceNext.x + namespaceNext.w - namespacePrev.x,
-                namespacePrev.h).contains(mousex, mousey)) {
+                namespacePrev.h).contains(mousex, mousey);
+    }
+
+    @Override
+    public boolean onMouseWheel(int shift, int mousex, int mousey) {
+
+        if ((!inEditingState() || this.sortableGroup != null) && isOverNamespaceControls(mousex, mousey)) {
 
             if (shift > 0) {
                 this.storage.prevNamespace();
@@ -1020,15 +1053,9 @@ public class BookmarkPanel extends PanelWidget<BookmarkGrid> {
             final BookmarksGridSlot slot = this.grid.getSlotMouseOver(mousex, mousey);
 
             if (slot != null) {
-                int multiplier = 1;
-
-                if (NEIClientUtils.altKey()) {
-                    multiplier = NEIClientConfig.showItemQuantityWidget() ? NEIClientConfig.getItemQuantity() : 0;
-                    if (multiplier == 0) {
-                        multiplier = StackInfo.itemStackToNBT(slot.getItemStack()).hasKey("gtFluidName") ? 144
-                                : slot.getItemStack().getMaxStackSize();
-                    }
-                }
+                final long multiplier = NEIClientUtils.altKey()
+                        ? NEIClientUtils.getScrollMultiplier(slot.getItemStack())
+                        : 1;
 
                 this.grid.shiftItemAmount(slot.itemIndex, multiplier * shift);
                 return true;
@@ -1070,20 +1097,23 @@ public class BookmarkPanel extends PanelWidget<BookmarkGrid> {
                 }
 
                 activeStack = items.get((items.size() - shift + stackIndex) % items.size());
-
                 this.acceptsFollowingTooltipLineHandler.setActiveStack(activeStack);
-                this.grid.getBookmarkItem(Math.abs(itemIndex)).itemStack = activeStack;
-                this.grid.onItemsChanged();
+
+                final int targetItemIndex = Math.abs(itemIndex);
+                final BookmarkItem oldItem = this.grid.getBookmarkItem(targetItemIndex);
+                final BookmarkItem newItem = oldItem.copyWithPerm(activeStack);
+
+                this.grid.replaceBookmarkItem(targetItemIndex, newItem);
             }
 
             return true;
         }
 
         if (super.onMouseWheel(shift, mousex, mousey)) {
-            final int overRowIndex = grid.getRowIndex(mousey);
+            final int overRowIndex = Math.min(grid.getRowIndex(mousey), grid.getRows() - 1);
 
             if (this.sortableGroup != null && overRowIndex >= 0
-                    && this.sortableGroup.groupId != this.grid.getRowGroupId(overRowIndex)) {
+                    && !this.sortableGroup.matches(this.grid, this.grid.getRowGroupId(overRowIndex))) {
                 this.grid.moveGroup(this.sortableGroup, overRowIndex);
             }
 
@@ -1120,7 +1150,7 @@ public class BookmarkPanel extends PanelWidget<BookmarkGrid> {
 
             for (BookmarkItem item : math.initialItems) {
                 final long invStackSize = inventory.getOrDefault(item.itemStack, 0L);
-                final long amount = item.amount - invStackSize * item.fluidCellAmount;
+                final long amount = item.getAmount() - invStackSize * item.fluidCellAmount;
                 if (amount > 0) {
                     pullItemStacks.add(item.getItemStack(amount));
                 }
@@ -1134,7 +1164,7 @@ public class BookmarkPanel extends PanelWidget<BookmarkGrid> {
             for (BookmarkItem item : math.initialItems) {
                 final long invStackSize = inventory.getOrDefault(item.itemStack, 0L);
                 final long strStackSize = containerStorage.getOrDefault(item.itemStack, 0L);
-                final long amount = item.amount - invStackSize * item.fluidCellAmount
+                final long amount = item.getAmount() - invStackSize * item.fluidCellAmount
                         - strStackSize * item.fluidCellAmount;
 
                 if (amount > 0) {
@@ -1268,7 +1298,7 @@ public class BookmarkPanel extends PanelWidget<BookmarkGrid> {
     public BookmarkRecipeId getBookmarkRecipeId(int itemIndex) {
         BookmarkItem item = this.grid.getCalculatedItem(itemIndex);
         return item == null || item.type == BookmarkItemType.INGREDIENT || item.recipeId == null ? null
-                : new BookmarkRecipeId(item.recipeId.getHandleName(), item.recipeId.getIngredients());
+                : new BookmarkRecipeId(item.recipeId.getHandlerName(), item.recipeId.getIngredients());
     }
 
     @Deprecated

src/main/java/codechicken/nei/Button.java

@@ -57,6 +57,10 @@ public abstract class Button extends Widget {
         return label;
     }
 
+    public int getRenderLabelColor() {
+        return 0;
+    }
+
     public final String label;
     public Image icon;
 

src/main/java/codechicken/nei/ClientHandler.java

@@ -45,8 +45,10 @@ import codechicken.core.ClassDiscoverer;
 import codechicken.core.ClientUtils;
 import codechicken.lib.packet.PacketCustom;
 import codechicken.nei.api.API;
+import codechicken.nei.api.GuiInfo;
 import codechicken.nei.api.IConfigureNEI;
 import codechicken.nei.api.ItemInfo;
+import codechicken.nei.bookmark.tree.GuiCraftingTree;
 import codechicken.nei.guihook.GuiContainerManager;
 import codechicken.nei.recipe.GuiRecipeTab;
 import codechicken.nei.recipe.StackInfo;
@@ -278,6 +280,7 @@ public class ClientHandler {
         PacketCustom.assignHandler(NEICPH.channel, new NEICPH());
         FMLCommonHandler.instance().bus().register(instance);
         MinecraftForge.EVENT_BUS.register(instance);
+        MinecraftForge.EVENT_BUS.register(new GuiCraftingTree.EventHandler());
 
         API.registerHighlightHandler(new DefaultHighlightHandler(), ItemInfo.Layout.HEADER);
         HUDRenderer.load();
@@ -374,6 +377,7 @@ public class ClientHandler {
         } else if (event.gui == null) {
             /* prevent WorldClient reference being held in the Gui */
             NEIController.manager = null;
+            GuiInfo.clearGuiHandlers();
         }
     }
 

src/main/java/codechicken/nei/CollapsibleItems.java

@@ -10,6 +10,7 @@ import java.util.concurrent.ConcurrentHashMap;
 import java.util.stream.Collectors;
 
 import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTBase.NBTPrimitive;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.util.StatCollector;
@@ -112,7 +113,7 @@ public class CollapsibleItems {
                     group.setFilter(itemStr);
                 }
 
-                if (group != null && group.filter != null) {
+                if (group.filter != null) {
                     addGroup(group);
                     group = new GroupItem();
                 }
@@ -227,17 +228,17 @@ public class CollapsibleItems {
 
             if (NEIClientConfig.world.nbt.hasKey(STATE_KEY)) {
                 NBTTagCompound states = NEIClientConfig.world.nbt.getCompoundTag(STATE_KEY);
-                @SuppressWarnings("unchecked")
-                final Map<String, NBTPrimitive> list = (Map<String, NBTPrimitive>) states.tagMap;
+                final Map<String, NBTBase> list = states.tagMap;
                 final Map<String, GroupItem> mapping = new HashMap<>();
 
                 for (GroupItem group : CollapsibleItems.groups) {
                     mapping.put(group.guid, group);
                 }
 
-                for (Map.Entry<String, NBTPrimitive> nbtEntry : list.entrySet()) {
+                for (Map.Entry<String, NBTBase> nbtEntry : list.entrySet()) {
                     if (mapping.containsKey(nbtEntry.getKey())) {
-                        mapping.get(nbtEntry.getKey()).expanded = nbtEntry.getValue().func_150290_f() == 1;
+                        mapping.get(nbtEntry.getKey()).expanded = ((NBTPrimitive) nbtEntry.getValue()).func_150290_f()
+                                == 1;
                     }
                 }
             }

src/main/java/codechicken/nei/ColorUtils.java

@@ -0,0 +1,24 @@
+package codechicken.nei;
+
+import com.gtnewhorizon.gtnhlib.color.ColorResource;
+
+public class ColorUtils {
+
+    private static final ColorResource.Factory color = new ColorResource.Factory("nei");
+
+    public static final ColorResource
+    // spotless:off
+        textGray            = color.rgb("textGray",             "0x404040"),
+        textLightGray       = color.rgb("textLightGray",        "0x606060"),
+        recipeTitle         = color.rgb("recipeTitle",          "0xFFFFFF"),
+        recipeTitleHover    = color.rgb("recipeTitleHover",     "0xFFFF55"),
+        subsetWidget        = color.rgb("subsetWidget",         "0xAA00AA"),
+        recipeBadge         = color.rgb("recipeBadge",          "0xFDD835"),
+        buttonLabelNormal   = color.rgb("buttonLabelNormal",    "0xE0E0E0"),
+        buttonLabelHover    = color.rgb("buttonLabelHover",     "0xFFFFA0"),
+        buttonLabelDisabled = color.rgb("buttonLabelDisabled",  "0x601010"),
+        buttonLabelInactive = color.rgb("buttonLabelInactive",  "0xA0A0A0"),
+
+        craftingTreeLine    = color.argb("craftingTreeLine",    "0xFF888888");
+    // spotless:on
+}

src/main/java/codechicken/nei/CompositeTooltipLineHandler.java

@@ -0,0 +1,101 @@
+package codechicken.nei;
+
+import java.awt.Dimension;
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.List;
+
+import codechicken.lib.gui.GuiDraw;
+import codechicken.lib.gui.GuiDraw.ITooltipLineHandler;
+
+public abstract class CompositeTooltipLineHandler implements ITooltipLineHandler {
+
+    protected static final int SCREEN_MARGIN = 8 * 2 + 10;
+    protected static final int RESERVED_HEIGHT = 40;
+
+    protected final List<ItemsTooltipLineHandler> lines = new ArrayList<>();
+    protected final Dimension size = new Dimension();
+
+    protected boolean created = false;
+    protected int screenHeight = 0;
+
+    protected abstract void createLines();
+
+    protected boolean needsUpdate() {
+        return false;
+    }
+
+    @Override
+    public Dimension getSize() {
+        ensureCreated();
+        return this.size;
+    }
+
+    @Override
+    public void draw(int x, int y) {
+        if (this.size.height == 0) return;
+
+        for (ItemsTooltipLineHandler line : this.lines) {
+            line.draw(x, y);
+            y += line.getSize().height;
+        }
+    }
+
+    protected void ensureCreated() {
+        boolean update = needsUpdate();
+        update = this.screenHeight != (this.screenHeight = GuiDraw.displaySize().height) || update;
+
+        if (this.created && !update) {
+            return;
+        }
+
+        this.created = true;
+        this.lines.clear();
+        this.size.setSize(0, 0);
+
+        createLines();
+        fitToScreen();
+
+        for (ItemsTooltipLineHandler line : this.lines) {
+            this.size.width = Math.max(this.size.width, line.getSize().width);
+            this.size.height += line.getSize().height;
+        }
+    }
+
+    protected void fitToScreen() {
+        if (this.lines.isEmpty()) {
+            return;
+        }
+
+        final List<ItemsTooltipLineHandler> ordered = new ArrayList<>(this.lines);
+        ordered.sort(Comparator.comparingInt(ItemsTooltipLineHandler::getRows));
+
+        int budget = availableHeight() / ItemsTooltipLineHandler.SLOT_SIZE;
+        int rest = ordered.size();
+
+        for (ItemsTooltipLineHandler line : ordered) {
+            final int fair = Math.max(1, budget / rest);
+
+            if (line.getRows() > fair) {
+                line.setMaxRows(fair);
+            }
+
+            budget -= line.getRows();
+            rest--;
+        }
+    }
+
+    protected int availableHeight() {
+        return GuiDraw.displaySize().height - SCREEN_MARGIN
+                - RESERVED_HEIGHT
+                - this.lines.size() * ItemsTooltipLineHandler.headerHeight();
+    }
+
+    protected static int maxLineRows() {
+        final int height = GuiDraw.displaySize().height - SCREEN_MARGIN
+                - RESERVED_HEIGHT
+                - ItemsTooltipLineHandler.headerHeight();
+        return Math.max(1, height / ItemsTooltipLineHandler.SLOT_SIZE);
+    }
+
+}

src/main/java/codechicken/nei/ContainerCreativeInv.java

@@ -79,14 +79,13 @@ public class ContainerCreativeInv extends Container {
     @Override
     public ItemStack transferStackInSlot(EntityPlayer par1EntityPlayer, int slotIndex) {
         ItemStack transferredStack = null;
-        Slot slot = (Slot) inventorySlots.get(slotIndex);
+        Slot slot = inventorySlots.get(slotIndex);
 
         if (slot != null && slot.getHasStack()) {
             ItemStack stack = slot.getStack();
             transferredStack = stack.copy();
 
-            if (stack.getItem() instanceof ItemArmor) {
-                ItemArmor armor = (ItemArmor) stack.getItem();
+            if (stack.getItem() instanceof ItemArmor armor) {
                 if (!getSlot(90 + armor.armorType).getHasStack()) {
                     getSlot(90 + armor.armorType).putStack(transferredStack);
                     slot.putStack(null);

src/main/java/codechicken/nei/ContainerEnchantmentModifier.java

@@ -8,7 +8,6 @@ import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.entity.player.InventoryPlayer;
 import net.minecraft.inventory.ContainerEnchantment;
 import net.minecraft.inventory.IInventory;
-import net.minecraft.inventory.Slot;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagList;
@@ -164,14 +163,14 @@ public class ContainerEnchantmentModifier extends ContainerEnchantment {
 
     public boolean addEnchantment(int e, int level) {
         if (e < Enchantment.enchantmentsList.length && Enchantment.enchantmentsList[e] != null) {
-            ((Slot) inventorySlots.get(0)).getStack().addEnchantment(Enchantment.enchantmentsList[e], level);
+            inventorySlots.get(0).getStack().addEnchantment(Enchantment.enchantmentsList[e], level);
             return true;
         }
         return false;
     }
 
     public void removeEnchantment(int e) {
-        ItemStack stack = ((Slot) inventorySlots.get(0)).getStack();
+        ItemStack stack = inventorySlots.get(0).getStack();
         NBTTagList nbttaglist = stack.getEnchantmentTagList();
         if (nbttaglist != null) {
             for (int i = 0; i < nbttaglist.tagCount(); i++) {

src/main/java/codechicken/nei/DefaultHighlightHandler.java

@@ -20,7 +20,7 @@ public class DefaultHighlightHandler implements IHighlightHandler {
         String name = null;
         try {
             String s = GuiContainerManager.itemDisplayNameShort(stack);
-            if (s != null && !s.endsWith("Unnamed")) name = s;
+            if (!s.endsWith("Unnamed")) name = s;
 
             if (name != null) currenttip.add(name);
         } catch (Exception ignored) {}

src/main/java/codechicken/nei/FastTransferManager.java

@@ -91,7 +91,7 @@ public class FastTransferManager {
 
     public static void clearSlots(Container container) {
         for (int slotNo = 0; slotNo < container.inventorySlots.size(); slotNo++)
-            ((Slot) container.inventorySlots.get(slotNo)).putStack(null);
+            container.inventorySlots.get(slotNo).putStack(null);
     }
 
     public void performMassTransfer(GuiContainer window, int fromSlot, int toSlot, ItemStack heldStack) {
@@ -289,7 +289,7 @@ public class FastTransferManager {
 
         if (held == null) return -1;
 
-        for (int i = 0; held != null && i < window.inventorySlots.inventorySlots.size(); i++) {
+        for (int i = 0; i < window.inventorySlots.inventorySlots.size(); i++) {
             final Slot slot = window.inventorySlots.inventorySlots.get(i);
 
             if (slot.inventory instanceof InventoryPlayer && !slot.getHasStack() && slot.isItemValid(held)) {

src/main/java/codechicken/nei/FavoriteRecipes.java

@@ -8,6 +8,7 @@ import java.io.InputStream;
 import java.io.OutputStream;
 import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -16,6 +17,7 @@ import java.util.Map;
 import java.util.Objects;
 import java.util.Set;
 
+import net.minecraft.init.Blocks;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagCompound;
@@ -135,6 +137,7 @@ public class FavoriteRecipes {
 
     };
 
+    public static final String FAVORITE_ITEM = "FavoriteItem";
     private static final FavoriteStorage manualFavorites = new FavoriteStorage();
     private static FavoriteStorage autoFavorites = new FavoriteStorage();
     private static File favoriteFile;
@@ -224,7 +227,7 @@ public class FavoriteRecipes {
                         continue;
                     }
 
-                    if (RecipeHandlerRef.of(recipeId) != null) {
+                    if (FAVORITE_ITEM.equals(recipeId.getHandlerName()) || RecipeHandlerRef.of(recipeId) != null) {
                         manualFavorites.add(stack, recipeId);
                     } else {
                         hasErrors = true;
@@ -256,6 +259,20 @@ public class FavoriteRecipes {
         loadAutoGeneratedRecipes();
     }
 
+    public static RecipeId getGeneratedFavorite(ItemStack stack) {
+        if (NEIClientConfig.favoritesEnabled() && stack != null) {
+            return autoFavorites.getRecipeId(stack);
+        }
+        return null;
+    }
+
+    public static ItemStack getGeneratedFavorite(RecipeId recipeId) {
+        if (NEIClientConfig.favoritesEnabled() && recipeId != null) {
+            return autoFavorites.getItemStack(recipeId);
+        }
+        return null;
+    }
+
     public static RecipeId getManualFavorite(ItemStack stack) {
         if (NEIClientConfig.favoritesEnabled() && stack != null) {
             return manualFavorites.getRecipeId(stack);
@@ -299,6 +316,10 @@ public class FavoriteRecipes {
         load();
     }
 
+    public static boolean hasManual() {
+        return manualFavorites.size() > 0;
+    }
+
     public static boolean containsManual(ItemStack stack) {
         return getManualFavorite(stack) != null;
     }
@@ -307,6 +328,21 @@ public class FavoriteRecipes {
         return getFavorite(stack) != null;
     }
 
+    public static void toggleFavoriteItem(ItemStack stack) {
+        if (stack == null) return;
+
+        if (containsManual(stack)) {
+            setFavorite(stack, null);
+        } else {
+            setFavorite(
+                    stack,
+                    RecipeId.of(
+                            stack,
+                            FavoriteRecipes.FAVORITE_ITEM,
+                            Arrays.asList(new ItemStack(Blocks.fire, 1), stack)));
+        }
+    }
+
     public static void setFavorite(ItemStack stack, RecipeId recipeId) {
         if (stack == null) return;
 

src/main/java/codechicken/nei/FormattedTextField.java

@@ -278,7 +278,7 @@ public class FormattedTextField extends GuiTextField {
         }
 
         Tessellator tessellator = Tessellator.instance;
-        GL11.glColor4f(0.0F, 0.0F, 255.0F, 255.0F);
+        GL11.glColor4f(0.0F, 0.0F, 1.0F, 1.0F);
         GL11.glDisable(GL11.GL_TEXTURE_2D);
         GL11.glEnable(GL11.GL_COLOR_LOGIC_OP);
         GL11.glLogicOp(GL11.GL_OR_REVERSE);
@@ -296,15 +296,26 @@ public class FormattedTextField extends GuiTextField {
         int shift = 0;
 
         for (int i = 0; i < position; i++) {
-            while (this.formattedText.length() > i + shift && this.formattedText.charAt(i + shift) == '\u00a7') {
+            while (this.formattedText.length() > i + shift + 1 && this.formattedText.charAt(i + shift) == '\u00a7'
+                    && isFormattingCode(this.formattedText.charAt(i + shift + 1))) {
                 shift += 2;
             }
         }
 
-        return position + shift;
+        return Math.min(position + shift, this.formattedText.length());
+    }
+
+    private static boolean isFormattingCode(char c) {
+        return (c >= '0' && c <= '9') || (c >= 'a' && c <= 'f')
+                || (c >= 'k' && c <= 'o')
+                || c == 'r'
+                || (c >= 'A' && c <= 'F')
+                || (c >= 'K' && c <= 'O')
+                || c == 'R';
     }
 
     private String getPreviousColor(int position) {
+        position = Math.min(position, this.formattedText.length() - 1);
         while (position >= 0) {
             if (this.formattedText.charAt(position) == '\u00a7') {
                 return this.formattedText.substring(position, position + 2);

src/main/java/codechicken/nei/GuiEnchantmentModifier.java

@@ -24,8 +24,8 @@ public class GuiEnchantmentModifier extends GuiContainer {
 
     @Override
     protected void drawGuiContainerForegroundLayer(int par1, int par2) {
-        fontRendererObj.drawString(translate("enchant"), 12, 6, 0x404040);
-        fontRendererObj.drawString(translate("enchant.level"), 19, 20, 0x404040);
+        fontRendererObj.drawString(translate("enchant"), 12, 6, ColorUtils.textGray.getColor());
+        fontRendererObj.drawString(translate("enchant.level"), 19, 20, ColorUtils.textGray.getColor());
     }
 
     protected void drawGuiContainerBackgroundLayer(float f, int i, int j) {
@@ -39,7 +39,11 @@ public class GuiEnchantmentModifier extends GuiContainer {
         container.drawScrollBar(this);
 
         String levelstring = "" + container.level;
-        fontRendererObj.drawString(levelstring, 33 - fontRendererObj.getStringWidth(levelstring) / 2, 34, 0xFF606060);
+        fontRendererObj.drawString(
+                levelstring,
+                33 - fontRendererObj.getStringWidth(levelstring) / 2,
+                34,
+                ColorUtils.textLightGray.getColor());
 
         GL11.glTranslatef(-guiLeft, -guiTop, 0);
     }
@@ -78,8 +82,8 @@ public class GuiEnchantmentModifier extends GuiContainer {
 
     private void changeLevel(int i) {
         container.level += i;
-        ((GuiButton) buttonList.get(0)).enabled = container.level != 1;
-        ((GuiButton) buttonList.get(1)).enabled = container.level != 10;
+        buttonList.get(0).enabled = container.level != 1;
+        buttonList.get(1).enabled = container.level != 10;
     }
 
     protected void mouseClicked(int i, int j, int k) {

src/main/java/codechicken/nei/GuiNEIButton.java

@@ -7,56 +7,51 @@ import net.minecraft.util.ResourceLocation;
 
 import org.lwjgl.opengl.GL11;
 
+import codechicken.nei.drawable.DrawableBuilder;
+import codechicken.nei.drawable.DrawableResource;
+
 public class GuiNEIButton extends GuiButton {
 
     protected static final ResourceLocation guiTex = new ResourceLocation("textures/gui/widgets.png");
+    private static final DrawableResource[] BACKGROUNDS = new DrawableResource[3];
+
+    static {
+        for (int state = 0; state < BACKGROUNDS.length; state++) {
+            BACKGROUNDS[state] = new DrawableBuilder(guiTex, 0, 46 + state * 20, 200, 20).setSlices(2, 2, 2, 2).build();
+        }
+    }
 
     public GuiNEIButton(int i, int j, int k, int l, int i1, String s) {
         super(i, j, k, l, i1, s);
     }
 
+    protected DrawableResource getBackground(int mouseX, int mouseY, boolean mouseOver) {
+        return BACKGROUNDS[getHoverState(mouseOver)];
+    }
+
     public void drawButton(Minecraft minecraft, int x, int y) {
         if (!visible) return;
 
-        minecraft.renderEngine.bindTexture(guiTex);
-        GL11.glColor4f(1, 1, 1, 1);
         boolean mouseOver = x >= xPosition && y >= yPosition && x < xPosition + width && y < yPosition + height;
-        int k = getHoverState(mouseOver);
-        drawTexturedModalRect(xPosition, yPosition, 0, 46 + k * 20, width / 2, height / 2); // top left
-        drawTexturedModalRect(xPosition + width / 2, yPosition, 200 - width / 2, 46 + k * 20, width / 2, height / 2); // top
-                                                                                                                      // right
-        drawTexturedModalRect(
-                xPosition,
-                yPosition + height / 2,
-                0,
-                46 + k * 20 + 20 - height / 2,
-                width / 2,
-                height / 2); // bottom left
-        drawTexturedModalRect(
-                xPosition + width / 2,
-                yPosition + height / 2,
-                200 - width / 2,
-                46 + k * 20 + 20 - height / 2,
-                width / 2,
-                height / 2); // bottom right
-        mouseDragged(minecraft, x, y);
 
+        GL11.glColor4f(1, 1, 1, 1);
+        getBackground(x, y, mouseOver).draw(xPosition, yPosition, width, height);
+        mouseDragged(minecraft, x, y);
         drawContent(minecraft, x, y, mouseOver);
     }
 
     protected int getTextColour(boolean mouseOver) {
-        int color = 0xe0e0e0;
 
         if (!enabled) {
-            color = 0xffa0a0a0;
+            return ColorUtils.buttonLabelInactive.getColor();
         } else if (mouseOver) {
-            color = 0xffffa0;
+            return ColorUtils.buttonLabelHover.getColor();
         }
 
-        return color;
+        return ColorUtils.buttonLabelNormal.getColor();
     }
 
-    protected void drawContent(Minecraft minecraft, int y, int x, boolean mouseOver) {
+    protected void drawContent(Minecraft minecraft, int x, int y, boolean mouseOver) {
         FontRenderer fontrenderer = minecraft.fontRenderer;
         int color = getTextColour(mouseOver);
 

src/main/java/codechicken/nei/GuiPotionCreator.java

@@ -289,10 +289,10 @@ public class GuiPotionCreator extends GuiContainerWidget {
         CCRenderState.changeTexture("nei:textures/gui/potion.png");
         drawTexturedModalRect(0, 0, 0, 0, xSize, ySize);
 
-        FontUtils.drawCenteredString(translate("potion.favourite"), xSize / 2, 4, 0x404040);
-        fontRendererObj.drawString(translate("potion.duration"), 12, 40, 0x404040);
-        fontRendererObj.drawString(translate("potion.level"), 19, 73, 0x404040);
-        FontUtils.drawCenteredString(translateAmplifier(amplifier), 33, 86, 0xFF606060);
+        FontUtils.drawCenteredString(translate("potion.favourite"), xSize / 2, 4, ColorUtils.textGray.getColor());
+        fontRendererObj.drawString(translate("potion.duration"), 12, 40, ColorUtils.textGray.getColor());
+        fontRendererObj.drawString(translate("potion.level"), 19, 73, ColorUtils.textGray.getColor());
+        FontUtils.drawCenteredString(translateAmplifier(amplifier), 33, 86, ColorUtils.textGray.getColor());
     }
 
     @Override

src/main/java/codechicken/nei/HUDRenderer.java

@@ -28,7 +28,7 @@ public class HUDRenderer implements IKeyStateTracker {
 
     @Override
     public void tickKeyStates() {
-        if (KeyManager.keyStates.get("world.highlight_tips").down) {
+        if (KeyManager.isPressed("world.highlight_tips")) {
             ConfigTag tag = NEIClientConfig.getSetting("world.highlight_tips");
             tag.setBooleanValue(!tag.getBooleanValue());
         }

src/main/java/codechicken/nei/IMCForNEI.java

@@ -0,0 +1,161 @@
+package codechicken.nei;
+
+import net.minecraft.client.gui.GuiRepair;
+import net.minecraft.client.gui.inventory.GuiBrewingStand;
+import net.minecraft.client.gui.inventory.GuiCrafting;
+import net.minecraft.client.gui.inventory.GuiFurnace;
+import net.minecraft.client.gui.inventory.GuiInventory;
+import net.minecraft.nbt.NBTTagCompound;
+
+import codechicken.nei.api.API;
+import codechicken.nei.recipe.BrewingOverlayHandler;
+import codechicken.nei.recipe.BrewingRecipeHandler;
+import codechicken.nei.recipe.DefaultOverlayHandler;
+import codechicken.nei.recipe.FireworkRecipeHandler;
+import codechicken.nei.recipe.FuelRecipeHandler;
+import codechicken.nei.recipe.FurnaceRecipeHandler;
+import codechicken.nei.recipe.InformationHandler;
+import codechicken.nei.recipe.ProfilerRecipeHandler;
+import codechicken.nei.recipe.RepairOverlayHandler;
+import codechicken.nei.recipe.RepairRecipeHandler;
+import codechicken.nei.recipe.ShapedRecipeHandler;
+import codechicken.nei.recipe.ShapelessRecipeHandler;
+import cpw.mods.fml.common.event.FMLInterModComms;
+
+public class IMCForNEI {
+
+    public static void IMCSender() {
+
+        API.registerRecipeHandler(new ShapedRecipeHandler());
+        API.registerUsageHandler(new ShapedRecipeHandler());
+        sendHandler("codechicken.nei.recipe.ShapedRecipeHandler", "minecraft:crafting_table");
+
+        API.registerRecipeHandler(new ShapelessRecipeHandler());
+        API.registerUsageHandler(new ShapelessRecipeHandler());
+        sendHandler("codechicken.nei.recipe.ShapelessRecipeHandler", "minecraft:crafting_table");
+
+        API.registerRecipeHandler(new FireworkRecipeHandler());
+        API.registerUsageHandler(new FireworkRecipeHandler());
+        sendHandler("codechicken.nei.recipe.FireworkRecipeHandler", "minecraft:fireworks");
+
+        API.registerRecipeHandler(new FurnaceRecipeHandler());
+        API.registerUsageHandler(new FurnaceRecipeHandler());
+        sendHandler("codechicken.nei.recipe.FurnaceRecipeHandler", "minecraft:furnace");
+
+        API.registerRecipeHandler(new BrewingRecipeHandler());
+        API.registerUsageHandler(new BrewingRecipeHandler());
+        sendHandler("codechicken.nei.recipe.BrewingRecipeHandler", "minecraft:brewing_stand");
+
+        API.registerRecipeHandler(new FuelRecipeHandler());
+        API.registerUsageHandler(new FuelRecipeHandler());
+        sendFuelRecipeHandler();
+
+        API.registerRecipeHandler(new InformationHandler());
+        API.registerUsageHandler(new InformationHandler());
+        sendInformationHandler();
+
+        API.registerRecipeHandler(new RepairRecipeHandler());
+        API.registerUsageHandler(new RepairRecipeHandler());
+        sendRepairHandler();
+        sendCatalyst("repair", "minecraft:anvil");
+
+        API.registerGuiOverlay(GuiCrafting.class, "crafting");
+        API.registerGuiOverlay(GuiInventory.class, "crafting2x2", 63, 20);
+        API.registerGuiOverlay(GuiFurnace.class, "smelting");
+        API.registerGuiOverlay(GuiFurnace.class, "fuel");
+        API.registerGuiOverlay(GuiBrewingStand.class, "brewing");
+        API.registerGuiOverlay(GuiRepair.class, "repair", 2, 37);
+
+        API.registerGuiOverlayHandler(GuiCrafting.class, new DefaultOverlayHandler(), "crafting");
+        API.registerGuiOverlayHandler(GuiInventory.class, new DefaultOverlayHandler(63, 20), "crafting2x2");
+        API.registerGuiOverlayHandler(GuiBrewingStand.class, new BrewingOverlayHandler(), "brewing");
+        API.registerGuiOverlayHandler(GuiRepair.class, new RepairOverlayHandler(), "repair");
+
+        API.registerRecipeHandler(new ProfilerRecipeHandler(true));
+        API.registerUsageHandler(new ProfilerRecipeHandler(false));
+        sendProfilerRecipeHandler();
+    }
+
+    private static void sendHandler(String aName, String aBlock) {
+        NBTTagCompound aNBT = new NBTTagCompound();
+        aNBT.setString("handler", aName);
+        aNBT.setString("modName", "Minecraft");
+        aNBT.setString("modId", "minecraft");
+        aNBT.setString("itemName", aBlock);
+        aNBT.setInteger("handlerWidth", 166);
+        aNBT.setInteger("handlerHeight", 65);
+        aNBT.setBoolean("multipleWidgetsAllowed", true);
+        aNBT.setInteger("yShift", 0);
+        FMLInterModComms.sendMessage("NotEnoughItems", "registerHandlerInfo", aNBT);
+    }
+
+    private static void sendRepairHandler() {
+        NBTTagCompound aNBT = new NBTTagCompound();
+        aNBT.setString("handler", "codechicken.nei.recipe.RepairRecipeHandler");
+        aNBT.setString("modName", "Minecraft");
+        aNBT.setString("modId", "minecraft");
+        aNBT.setString("itemName", "minecraft:anvil");
+        aNBT.setInteger("handlerHeight", 39);
+        aNBT.setInteger("handlerWidth", 166);
+        aNBT.setBoolean("multipleWidgetsAllowed", true);
+        aNBT.setBoolean("showFavoritesButton", false);
+        aNBT.setInteger("yShift", 0);
+        FMLInterModComms.sendMessage("NotEnoughItems", "registerHandlerInfo", aNBT);
+    }
+
+    private static void sendFuelRecipeHandler() {
+        NBTTagCompound aNBT = new NBTTagCompound();
+        aNBT.setString("handler", "codechicken.nei.recipe.FuelRecipeHandler");
+        aNBT.setString("modName", "Minecraft");
+        aNBT.setString("modId", "minecraft");
+        aNBT.setString("imageResource", "nei:textures/nei_tabbed_sprites.png");
+        aNBT.setInteger("imageX", 80);
+        aNBT.setInteger("imageY", 0);
+        aNBT.setInteger("imageWidth", 14);
+        aNBT.setInteger("imageHeight", 14);
+        aNBT.setInteger("handlerHeight", 65);
+        aNBT.setInteger("handlerWidth", 166);
+        aNBT.setBoolean("multipleWidgetsAllowed", true);
+        aNBT.setInteger("yShift", 0);
+        FMLInterModComms.sendMessage("NotEnoughItems", "registerHandlerInfo", aNBT);
+    }
+
+    private static void sendInformationHandler() {
+        NBTTagCompound aNBT = new NBTTagCompound();
+        aNBT.setString("handler", "codechicken.nei.recipe.InformationHandler");
+        aNBT.setString("modName", "Not Enough Items");
+        aNBT.setString("modId", "nei");
+        aNBT.setString("imageResource", "nei:textures/nei_tabbed_sprites.png");
+        aNBT.setInteger("imageX", 96);
+        aNBT.setInteger("imageY", 0);
+        aNBT.setInteger("imageWidth", 16);
+        aNBT.setInteger("imageHeight", 16);
+        aNBT.setInteger("handlerHeight", 65);
+        aNBT.setInteger("handlerWidth", 166);
+        aNBT.setBoolean("multipleWidgetsAllowed", true);
+        aNBT.setInteger("yShift", 0);
+        FMLInterModComms.sendMessage("NotEnoughItems", "registerHandlerInfo", aNBT);
+    }
+
+    private static void sendProfilerRecipeHandler() {
+        NBTTagCompound aNBT = new NBTTagCompound();
+        aNBT.setString("handler", "codechicken.nei.recipe.ProfilerRecipeHandler");
+        aNBT.setString("modName", "Not Enough Items");
+        aNBT.setString("modId", "nei");
+        aNBT.setString("itemName", "minecraft:clock");
+        aNBT.setInteger("handlerHeight", 16);
+        aNBT.setInteger("handlerWidth", 166);
+        aNBT.setBoolean("multipleWidgetsAllowed", true);
+        aNBT.setInteger("yShift", 0);
+        FMLInterModComms.sendMessage("NotEnoughItems", "registerHandlerInfo", aNBT);
+    }
+
+    private static void sendCatalyst(String aName, String aStack) {
+        NBTTagCompound aNBT = new NBTTagCompound();
+        aNBT.setString("handlerID", aName);
+        aNBT.setString("itemName", aStack);
+        aNBT.setInteger("priority", 0);
+        FMLInterModComms.sendMessage("NotEnoughItems", "registerCatalystInfo", aNBT);
+    }
+
+}

src/main/java/codechicken/nei/InfiniteStackSizeHandler.java

@@ -30,14 +30,7 @@ public class InfiniteStackSizeHandler implements IInfiniteItemHandler {
 
     @Override
     public void replenishInfiniteStack(InventoryPlayer inv, int slotNo) {
-        ItemStack stack = inv.getStackInSlot(slotNo);
-        stack.stackSize = 111;
-
-        for (int i = 0; i < inv.getSizeInventory(); i++) {
-            if (i == slotNo) continue;
-
-            if (NEIServerUtils.areStacksSameType(stack, inv.getStackInSlot(i))) inv.setInventorySlotContents(i, null);
-        }
+        inv.getStackInSlot(slotNo).stackSize = 111;
     }
 
     @Override

src/main/java/codechicken/nei/ItemCraftablesPanel.java

@@ -6,11 +6,14 @@ import java.util.Comparator;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.concurrent.atomic.AtomicReference;
 import java.util.stream.Collectors;
 import java.util.stream.IntStream;
 
 import net.minecraft.client.gui.inventory.GuiContainer;
+import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
+import net.minecraftforge.fluids.FluidContainerRegistry;
 
 import codechicken.lib.vec.Rectangle4i;
 import codechicken.nei.ItemsGrid.ItemsGridSlot;
@@ -21,7 +24,6 @@ import codechicken.nei.recipe.GuiCraftingRecipe;
 import codechicken.nei.recipe.GuiRecipe;
 import codechicken.nei.recipe.ICraftingHandler;
 import codechicken.nei.recipe.IRecipeHandler;
-import codechicken.nei.recipe.Recipe;
 import codechicken.nei.recipe.Recipe.RecipeId;
 import codechicken.nei.recipe.RecipeInfo;
 import codechicken.nei.recipe.StackInfo;
@@ -39,7 +41,7 @@ public class ItemCraftablesPanel
         public CraftablesGridSlot(int slotIndex, int itemIndex, ItemStack itemStack, RecipeId recipeId) {
             super(slotIndex, itemIndex, itemStack);
             this.realAmount = StackInfo.getAmount(itemStack);
-            this.isFluidDisplay = StackInfo.itemStackToNBT(itemStack).hasKey("gtFluidName");
+            this.isFluidDisplay = StackInfo.isFluidDisplayItem(itemStack);
             this.recipeId = recipeId;
         }
 
@@ -82,6 +84,42 @@ public class ItemCraftablesPanel
 
     }
 
+    private static class CraftablesSnapshot {
+
+        final GuiContainer guiContainer;
+        final ItemStackAmount inventory;
+        final boolean showOnlyFavorites;
+        final int maxCandidates;
+
+        CraftablesSnapshot(GuiContainer guiContainer, ItemStackAmount inventory, boolean showOnlyFavorites,
+                int maxCandidates) {
+            this.guiContainer = guiContainer;
+            this.inventory = inventory;
+            this.showOnlyFavorites = showOnlyFavorites;
+            this.maxCandidates = maxCandidates;
+        }
+    }
+
+    private static class RecipeCandidate {
+
+        final IRecipeHandler handler;
+        final int recipeIndex;
+        final List<PositionedStack> ingredientStacks;
+        final ItemStack sortKeyItem;
+
+        RecipeCandidate(IRecipeHandler handler, int recipeIndex, List<PositionedStack> ingredientStacks,
+                ItemStack sortKeyItem) {
+            this.handler = handler;
+            this.recipeIndex = recipeIndex;
+            this.ingredientStacks = ingredientStacks;
+            this.sortKeyItem = sortKeyItem;
+        }
+    }
+
+    private static final Comparator<ItemStack> ITEM_SORT_COMPARATOR = Comparator
+            .comparing(FavoriteRecipes::containsManual).thenComparing(FavoriteRecipes::contains).reversed()
+            .thenComparing(ItemSorter.instance);
+
     public static List<String> guiBlacklist = new ArrayList<>();
     private final int MIN_DELAY = 600;
 
@@ -93,6 +131,16 @@ public class ItemCraftablesPanel
     private long lastPlayerInventorySync = 0;
     private int lastFavoritesCount = 0;
 
+    private volatile CraftablesSnapshot pendingSnapshot;
+    private final AtomicReference<Map<ItemStack, RecipeId>> pendingResult = new AtomicReference<>();
+    private final RestartableTask task = new RestartableTask("NEI Craftables Panel") {
+
+        @Override
+        public void execute() {
+            pendingResult.set(generateCraftables(ItemCraftablesPanel.this.pendingSnapshot));
+        }
+    };
+
     public ItemCraftablesPanel() {
         this.grid = new ItemsGrid<>() {
 
@@ -114,12 +162,7 @@ public class ItemCraftablesPanel
 
                     if (!ItemCraftablesPanel.this.availableRecipes.isEmpty()) {
                         final List<Map.Entry<ItemStack, RecipeId>> entries = ItemCraftablesPanel.this.availableRecipes
-                                .entrySet().stream()
-                                .sorted(
-                                        Map.Entry.comparingByKey(
-                                                Comparator.comparing(FavoriteRecipes::containsManual)
-                                                        .thenComparing(FavoriteRecipes::contains).reversed()
-                                                        .thenComparing(ItemSorter.instance)))
+                                .entrySet().stream().sorted(Map.Entry.comparingByKey(ITEM_SORT_COMPARATOR))
                                 .limit(maxSlotIndex).collect(Collectors.toList());
                         int slotIndex = 0;
                         int itemIndex = 0;
@@ -195,10 +238,20 @@ public class ItemCraftablesPanel
 
     public void update() {
         this.splittingLineColor = NEIClientConfig.getSetting("inventory.craftables.color").getHexValue();
+        applyPendingResult();
         updateCraftables();
         super.update();
     }
 
+    private void applyPendingResult() {
+        final Map<ItemStack, RecipeId> result = this.pendingResult.getAndSet(null);
+
+        if (result != null && NEIClientConfig.showCraftablesPanelWidget()) {
+            this.availableRecipes = result;
+            this.grid.onGridChanged();
+        }
+    }
+
     private void updateCraftables() {
 
         if (!NEIClientConfig.showCraftablesPanelWidget()) {
@@ -219,8 +272,14 @@ public class ItemCraftablesPanel
                             this.lastPlayerInventory = inv;
                             this.lastGuiContainer = firstGui;
                             this.lastFavoritesCount = FavoriteRecipes.size();
-                            this.availableRecipes = generateCraftables(firstGui);
-                            this.grid.onGridChanged();
+                            final int maxRows = NEIClientConfig.getIntSetting("inventory.craftables.useRows") + 2;
+                            final int maxCandidates = Math.max(this.grid.columns, 1) * maxRows;
+                            this.pendingSnapshot = new CraftablesSnapshot(
+                                    firstGui,
+                                    inv,
+                                    showOnlyFavorites,
+                                    maxCandidates);
+                            this.task.restart();
                         }
 
                     } else {
@@ -241,20 +300,31 @@ public class ItemCraftablesPanel
 
     private GuiContainer getGuiContainer() {
         final GuiContainer firstGui = NEIClientUtils.getGuiContainer();
-        return (firstGui instanceof GuiRecipe gui) ? gui.firstGui : firstGui;
+        return (firstGui instanceof GuiRecipe<?>gui) ? gui.firstGui : firstGui;
     }
 
-    private Map<ItemStack, RecipeId> generateCraftables(GuiContainer firstGui) {
-        final List<IRecipeHandler> availableHandlers = getAvailableHandlers(firstGui);
+    private Map<ItemStack, RecipeId> generateCraftables(CraftablesSnapshot snapshot) {
+        final List<IRecipeHandler> availableHandlers = getAvailableHandlers(snapshot.guiContainer);
         final Map<ItemStack, RecipeId> availableRecipes = new HashMap<>();
 
         if (!availableHandlers.isEmpty()) {
-            final List<ItemStack> invStacks = ItemCraftablesPanel.this.lastPlayerInventory.values();
+            final Map<Item, List<ItemStack>> invByItem = indexInventoryByItem(snapshot.inventory.values());
 
-            for (IRecipeHandler handler : availableHandlers) {
-                availableRecipes.putAll(filterHandlerRecipes(handler, firstGui, invStacks));
+            if (snapshot.showOnlyFavorites) {
+                for (IRecipeHandler handler : availableHandlers) {
+                    availableRecipes.putAll(filterHandlerRecipes(handler, invByItem, true));
+                }
+            } else {
+                final List<RecipeCandidate> candidates = Collections.synchronizedList(new ArrayList<>());
+
+                for (IRecipeHandler handler : availableHandlers) {
+                    collectHandlerCandidates(handler, invByItem, candidates);
+                }
+
+                candidates.sort(Comparator.comparing(c -> c.sortKeyItem, ITEM_SORT_COMPARATOR));
+                candidates.subList(0, Math.min(candidates.size(), snapshot.maxCandidates)).parallelStream()
+                        .forEach(candidate -> buildCandidate(candidate, availableRecipes));
             }
-
         }
 
         return availableRecipes;
@@ -270,19 +340,126 @@ public class ItemCraftablesPanel
         return availableHandlers;
     }
 
-    private Map<ItemStack, RecipeId> filterHandlerRecipes(IRecipeHandler handler, GuiContainer firstGui,
-            List<ItemStack> invStacks) {
+    private static Map<Item, List<ItemStack>> indexInventoryByItem(List<ItemStack> invStacks) {
+        final Map<Item, List<ItemStack>> index = new HashMap<>();
+
+        for (ItemStack stack : invStacks) {
+            index.computeIfAbsent(stack.getItem(), i -> new ArrayList<>()).add(stack);
+        }
+
+        return index;
+    }
+
+    private void collectHandlerCandidates(IRecipeHandler handler, Map<Item, List<ItemStack>> invByItem,
+            List<RecipeCandidate> candidates) {
+        IntStream.range(0, handler.numRecipes()).parallel().forEach(recipeIndex -> {
+            final List<PositionedStack> ingredientStacks = handler.getIngredientStacks(recipeIndex);
+
+            if (existsIngredients(ingredientStacks, invByItem)) {
+                final ItemStack sortKeyItem = getCheapResultItem(handler, recipeIndex);
+
+                if (sortKeyItem != null) {
+                    candidates.add(new RecipeCandidate(handler, recipeIndex, ingredientStacks, sortKeyItem));
+                }
+            }
+        });
+    }
+
+    private void buildCandidate(RecipeCandidate candidate, Map<ItemStack, RecipeId> availableRecipes) {
+        final ItemStack result = getCheapResult(candidate.handler, candidate.recipeIndex);
+
+        if (result != null) {
+            final RecipeId recipeId = RecipeId.of(candidate.handler, candidate.recipeIndex, candidate.ingredientStacks);
+
+            synchronized (availableRecipes) {
+                availableRecipes.put(result, recipeId);
+            }
+        }
+    }
+
+    private static ItemStack getCheapResultItem(IRecipeHandler handler, int recipeIndex) {
+        final PositionedStack resultStack = handler.getResultStack(recipeIndex);
+
+        if (resultStack != null) {
+            return resultStack.item;
+        }
+
+        final List<PositionedStack> otherStacks = handler.getOtherStacks(recipeIndex);
+
+        for (PositionedStack otherStack : otherStacks) {
+            if (!FluidContainerRegistry.isContainer(otherStack.items[0])
+                    || StackInfo.getFluid(otherStack.items[0]) != null) {
+                return otherStack.item;
+            }
+        }
+
+        return otherStacks.isEmpty() ? null : otherStacks.get(0).item;
+    }
+
+    private static ItemStack getCheapResult(IRecipeHandler handler, int recipeIndex) {
+        final PositionedStack resultStack = handler.getResultStack(recipeIndex);
+        final List<PositionedStack> results = resultStack != null ? Collections.singletonList(resultStack)
+                : handler.getOtherStacks(recipeIndex);
+
+        if (results.isEmpty()) {
+            return null;
+        }
+
+        ItemStack stack = null;
+
+        if (results.size() > 1) {
+            for (PositionedStack result : results) {
+                if (!FluidContainerRegistry.isContainer(result.item) || StackInfo.getFluid(result.item) != null) {
+                    stack = result.item;
+                    break;
+                }
+            }
+        }
+
+        if (stack == null) {
+            stack = results.get(0).item;
+        }
+
+        int stackSize = 0;
+
+        for (PositionedStack result : results) {
+            if (containsSameType(result, stack)) {
+                stackSize += StackInfo.getAmount(result.item);
+            }
+        }
+
+        return StackInfo.withAmount(stack, stackSize);
+    }
+
+    private static boolean containsSameType(PositionedStack pStack, ItemStack stack) {
+        final ItemStack normalized = StackInfo.withAmount(stack, 0);
+
+        for (ItemStack permutation : pStack.items) {
+            if (NEIServerUtils.areStacksSameTypeWithNBT(StackInfo.withAmount(permutation, 0), normalized)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    private Map<ItemStack, RecipeId> filterHandlerRecipes(IRecipeHandler handler, Map<Item, List<ItemStack>> invByItem,
+            boolean showOnlyFavorites) {
         final Map<ItemStack, RecipeId> availableRecipes = new HashMap<>();
-        final boolean showOnlyFavorites = NEIClientConfig.getBooleanSetting("inventory.craftables.favoritesOnly");
 
         IntStream.range(0, handler.numRecipes()).parallel().forEach(recipeIndex -> {
-            if (existsIngredients(firstGui, handler.getIngredientStacks(recipeIndex), invStacks)) {
-                final Recipe recipe = Recipe.of(handler, recipeIndex);
+            final List<PositionedStack> ingredientStacks = handler.getIngredientStacks(recipeIndex);
 
-                if (!recipe.getResults().isEmpty()
-                        && (!showOnlyFavorites || FavoriteRecipes.getFavorite(recipe.getRecipeId()) != null)) {
-                    synchronized (availableRecipes) {
-                        availableRecipes.put(recipe.getResult(), recipe.getRecipeId());
+            if (existsIngredients(ingredientStacks, invByItem)) {
+                final ItemStack result = getCheapResult(handler, recipeIndex);
+
+                if (result != null) {
+                    final RecipeId recipeId = RecipeId.of(handler, recipeIndex, ingredientStacks);
+
+                    if (!showOnlyFavorites || FavoriteRecipes.getFavorite(recipeId) != null) {
+                        synchronized (availableRecipes) {
+                            availableRecipes.put(result, recipeId);
+                        }
                     }
                 }
             }
@@ -291,14 +468,27 @@ public class ItemCraftablesPanel
         return availableRecipes;
     }
 
-    private boolean existsIngredients(GuiContainer firstGui, List<PositionedStack> ingredients,
-            List<ItemStack> invStacks) {
+    private boolean existsIngredients(List<PositionedStack> ingredients, Map<Item, List<ItemStack>> invByItem) {
         final Map<ItemStack, Integer> usedItems = new HashMap<>();
 
         for (PositionedStack pStack : ingredients) {
-            final ItemStack used = invStacks.stream().filter(
-                    is -> usedItems.getOrDefault(is, is.stackSize) >= pStack.item.stackSize && pStack.contains(is))
-                    .findAny().orElse(null);
+            ItemStack used = null;
+
+            for (ItemStack permutation : pStack.items) {
+                final List<ItemStack> candidates = invByItem.get(permutation.getItem());
+
+                if (candidates == null) continue;
+
+                for (ItemStack is : candidates) {
+                    if (usedItems.getOrDefault(is, is.stackSize) >= pStack.item.stackSize
+                            && NEIServerUtils.areStacksSameTypeCrafting(permutation, is)) {
+                        used = is;
+                        break;
+                    }
+                }
+
+                if (used != null) break;
+            }
 
             if (used != null) {
                 usedItems.put(used, usedItems.getOrDefault(used, used.stackSize) - pStack.item.stackSize);

src/main/java/codechicken/nei/ItemHistoryPanel.java

@@ -1,17 +1,34 @@
 package codechicken.nei;
 
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 
 import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
 
+import org.apache.commons.io.IOUtils;
+
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import com.google.gson.JsonSyntaxException;
+
+import codechicken.core.CommonUtils;
 import codechicken.nei.ItemsGrid.ItemsGridSlot;
 import codechicken.nei.ItemsGrid.MouseContext;
 import codechicken.nei.recipe.Recipe.RecipeId;
 import codechicken.nei.recipe.StackInfo;
+import codechicken.nei.util.NBTJson;
 
 public class ItemHistoryPanel extends AbstractSubpanel<ItemsGrid<ItemHistoryPanel.HistoryGridSlot, MouseContext>> {
 
+    protected File historyFile = null;
+
     public static class HistoryGridSlot extends ItemsGridSlot {
 
         public HistoryGridSlot(int slotIndex, int itemIndex, ItemStack item) {
@@ -115,4 +132,107 @@ public class ItemHistoryPanel extends AbstractSubpanel<ItemsGrid<ItemHistoryPane
         }
     }
 
+    public void load() {
+
+        if (!NEIClientConfig.getBooleanSetting("inventory.history.save")) {
+            return;
+        }
+
+        String worldPath = "global";
+
+        if (NEIClientConfig.getBooleanSetting("inventory.history.worldSpecific")) {
+            worldPath = NEIClientConfig.getWorldPath();
+        }
+
+        final File dir = new File(CommonUtils.getMinecraftDir(), "saves/NEI/" + worldPath);
+
+        if (!dir.exists()) {
+            dir.mkdirs();
+        }
+
+        final File historyFile = new File(dir, "history.ini");
+
+        if (historyFile.equals(this.historyFile)) {
+            return;
+        }
+
+        List<String> itemStrings = Collections.emptyList();
+
+        if (historyFile.exists()) {
+            try (FileInputStream reader = new FileInputStream(historyFile)) {
+                NEIClientConfig.logger.info("Loading history from file {}", historyFile);
+                itemStrings = IOUtils.readLines(reader, StandardCharsets.UTF_8);
+            } catch (IOException e) {
+                NEIClientConfig.logger.error("Failed to load history from file {}", historyFile, e);
+                return;
+            }
+        }
+
+        final JsonParser parser = new JsonParser();
+        final int maxSize = Math.max(50, this.grid.rows * this.grid.columns);
+
+        this.grid.realItems.clear();
+
+        for (String itemStr : itemStrings) {
+
+            if (itemStr.isEmpty()) {
+                continue;
+            }
+
+            if (this.grid.realItems.size() >= maxSize) {
+                break;
+            }
+
+            try {
+                JsonObject row = parser.parse(itemStr).getAsJsonObject();
+                NBTTagCompound itemStackNBT = (NBTTagCompound) NBTJson.toNbt(row.get("item"));
+                ItemStack itemStack = StackInfo.loadFromNBT(itemStackNBT);
+
+                if (itemStack != null) {
+                    this.grid.realItems.add(itemStack);
+                } else {
+                    NEIClientConfig.logger.warn(
+                            "Failed to load history ItemStack from json string, the item no longer exists:\n{}",
+                            itemStr);
+                }
+            } catch (Exception e) {
+                NEIClientConfig.logger.error("Failed to load history ItemStack from json string:\n{}", itemStr);
+            }
+        }
+
+        this.grid.onItemsChanged();
+
+        this.historyFile = historyFile;
+    }
+
+    public void save() {
+
+        if (!NEIClientConfig.getBooleanSetting("inventory.history.save")) {
+            return;
+        }
+
+        if (this.historyFile == null) {
+            return;
+        }
+
+        final List<String> strings = new ArrayList<>();
+
+        for (ItemStack stack : this.grid.realItems) {
+
+            try {
+                final JsonObject row = new JsonObject();
+                row.add("item", NBTJson.toJsonObject(StackInfo.itemStackToNBT(stack)));
+                strings.add(NBTJson.toJson(row));
+            } catch (JsonSyntaxException e) {
+                NEIClientConfig.logger.error("Failed to stringify history ItemStack to json string");
+            }
+        }
+
+        try (FileOutputStream output = new FileOutputStream(this.historyFile)) {
+            IOUtils.writeLines(strings, "\n", output, StandardCharsets.UTF_8);
+        } catch (IOException e) {
+            NEIClientConfig.logger.error("Failed to save history list to file {}", this.historyFile, e);
+        }
+    }
+
 }

src/main/java/codechicken/nei/ItemList.java

@@ -2,38 +2,24 @@ package codechicken.nei;
 
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.Comparator;
-import java.util.HashMap;
-import java.util.HashSet;
 import java.util.LinkedList;
 import java.util.List;
-import java.util.Map;
-import java.util.concurrent.ExecutionException;
 import java.util.concurrent.ForkJoinPool;
 import java.util.concurrent.ForkJoinWorkerThread;
 import java.util.regex.Pattern;
-import java.util.stream.Collectors;
-import java.util.stream.StreamSupport;
 
-import net.minecraft.client.Minecraft;
-import net.minecraft.init.Blocks;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.EnumChatFormatting;
-import net.minecraft.util.IIcon;
-import net.minecraftforge.fluids.IFluidContainerItem;
+import net.minecraft.util.StatCollector;
 
 import com.google.common.collect.ArrayListMultimap;
 import com.google.common.collect.ListMultimap;
 
-import codechicken.nei.ThreadOperationTimer.TimeoutException;
 import codechicken.nei.api.ItemFilter;
 import codechicken.nei.api.ItemFilter.ItemFilterProvider;
 import codechicken.nei.api.ItemInfo;
-import codechicken.nei.recipe.InformationHandler;
-import codechicken.nei.search.TooltipFilter;
 import codechicken.nei.util.ItemUntranslator;
-import cpw.mods.fml.common.FMLLog;
 
 public class ItemList {
 
@@ -51,9 +37,6 @@ public class ItemList {
     public static final List<ItemFilterProvider> itemFilterers = new LinkedList<>();
     public static final List<ItemsLoadedCallback> loadCallbacks = new LinkedList<>();
 
-    private static final HashSet<Item> erroredItems = new HashSet<>();
-    private static final HashSet<String> stackTraces = new HashSet<>();
-    private static Map<ItemStack, Integer> ordering = new HashMap<>();
     /**
      * Unlike {@link LayoutManager#itemsLoaded}, this indicates whether item loading is actually finished or not.
      */
@@ -115,7 +98,15 @@ public class ItemList {
                 displayName = EnumChatFormatting
                         .getTextWithoutFormattingCodes(item.getItem().getItemStackDisplayName(item));
 
-                return displayName != null && !displayName.isEmpty() && this.pattern.matcher(displayName).find();
+                if (displayName != null && !displayName.isEmpty() && this.pattern.matcher(displayName).find()) {
+                    return true;
+                }
+            }
+
+            for (String alias : ItemInfo.getAliases(item)) {
+                if (this.pattern.matcher(StatCollector.translateToLocal(alias)).find()) {
+                    return true;
+                }
             }
 
             return false;
@@ -216,229 +207,6 @@ public class ItemList {
         return filters;
     }
 
-    public static final RestartableTask loadItems = new RestartableTask("NEI Item Loading") {
-
-        private void damageSearch(Item item, List<ItemStack> permutations) {
-            HashSet<String> damageIconSet = new HashSet<>();
-            for (int damage = 0; damage < 16; damage++) try {
-                ItemStack itemstack = new ItemStack(item, 1, damage);
-                IIcon icon = item.getIconIndex(itemstack);
-                String name = getTooltip(itemstack);
-                String s = name + "@" + (icon == null ? 0 : icon.hashCode());
-                if (damageIconSet.add(s)) {
-                    permutations.add(itemstack);
-                }
-            } catch (TimeoutException t) {
-                throw t;
-            } catch (Throwable t) {
-                NEIServerUtils.logOnce(
-                        t,
-                        stackTraces,
-                        "Ommiting " + item + ":" + damage + " " + item.getClass().getSimpleName(),
-                        item.toString());
-            }
-        }
-
-        private String getTooltip(ItemStack stack) {
-            try {
-                return String.join("\n", stack.getTooltip(Minecraft.getMinecraft().thePlayer, false));
-            } catch (Throwable ignored) {}
-
-            return "";
-        }
-
-        private void updateOrdering(List<ItemStack> items) {
-            final Map<ItemStack, Integer> newOrdering = new HashMap<>();
-            ItemSorter.sort(items);
-
-            if (!CollapsibleItems.isEmpty()) {
-                final HashMap<Integer, Integer> groups = new HashMap<>();
-                int orderIndex = 0;
-
-                for (ItemStack stack : items) {
-                    final int groupIndex = CollapsibleItems.getGroupIndex(stack);
-
-                    if (groupIndex == -1) {
-                        newOrdering.put(stack, orderIndex++);
-                    } else {
-
-                        if (!groups.containsKey(groupIndex)) {
-                            groups.put(groupIndex, orderIndex++);
-                        }
-
-                        newOrdering.put(stack, groups.get(groupIndex));
-                    }
-                }
-            } else {
-                int orderIndex = 0;
-
-                for (ItemStack stack : items) {
-                    newOrdering.put(stack, orderIndex++);
-                }
-            }
-
-            ItemList.ordering = newOrdering;
-        }
-
-        private List<ItemStack> getPermutations(Item item) {
-            final List<ItemStack> permutations = new LinkedList<>(ItemInfo.itemOverrides.get(item));
-
-            if (permutations.isEmpty()) {
-                item.getSubItems(item, null, permutations);
-            }
-
-            if (permutations.isEmpty()) {
-                damageSearch(item, permutations);
-            }
-
-            permutations.addAll(ItemInfo.itemVariants.get(item));
-
-            return permutations.stream()
-                    .filter(
-                            stack -> stack.getItem() != null && stack.getItem().delegate.name() != null
-                                    && !ItemInfo.isHidden(stack))
-                    .collect(Collectors.toList());
-        }
-
-        private void runChecked(ItemStack stack, Runnable action, String reason) {
-            int hashOld = 0;
-            if (stack.hasTagCompound()) {
-                hashOld = stack.stackTagCompound.hashCode();
-            }
-
-            action.run();
-
-            if (stack.hasTagCompound() && hashOld != stack.stackTagCompound.hashCode()) {
-                FMLLog.warning(
-                        "NEI: Forced tag update with reason (" + reason
-                                + ") for "
-                                + stack
-                                + "("
-                                + stack.getItem()
-                                + ")");
-            }
-        }
-
-        private void forceTagCompoundInitialization(ItemStack stack) {
-            Item item = stack.getItem();
-            if (item == null) {
-                return;
-            }
-            if (item instanceof IFluidContainerItem) {
-                IFluidContainerItem fluidItem = (IFluidContainerItem) item;
-                runChecked(stack, () -> fluidItem.getFluid(stack), "getFluid");
-            }
-            runChecked(stack, () -> item.isDamaged(stack), "isDamaged");
-            runChecked(stack, () -> item.getDamage(stack), "getDamage");
-            runChecked(stack, () -> item.showDurabilityBar(stack), "showDurabilityBar");
-            runChecked(stack, () -> item.getAttributeModifiers(stack), "getAttributeModifiers");
-            runChecked(stack, () -> item.getDurabilityForDisplay(stack), "getDurabilityForDisplay");
-            runChecked(stack, () -> item.getItemStackLimit(stack), "getItemStackLimit");
-            runChecked(stack, () -> item.getToolClasses(stack), "getToolClasses");
-            runChecked(stack, () -> item.getUnlocalizedNameInefficiently(stack), "getUnlocalizedNameInefficiently");
-            runChecked(stack, () -> item.hasEffect(stack), "hasEffect");
-            runChecked(stack, () -> item.getDigSpeed(stack, Blocks.stone, 0), "getDigSpeed");
-
-            /*
-             * unused... for now runChecked(stack, () -> GameRegistry.getFuelValue(stack), "getFuelValue");
-             * runChecked(stack, () -> item.getUnlocalizedName(stack), "getUnlocalizedName"); runChecked(stack, () ->
-             * item.doesContainerItemLeaveCraftingGrid(stack), "doesContainerItemLeaveCraftingGrid"); runChecked(stack,
-             * () -> item.getItemUseAction(stack), "getItemUseAction"); runChecked(stack, () ->
-             * item.getMaxItemUseDuration(stack), "getMaxItemUseDuration"); runChecked(stack, () ->
-             * item.getPotionEffect(stack), "getPotionEffect"); runChecked(stack, () -> item.isPotionIngredient(stack),
-             * "isPotionIngredient"); runChecked(stack, () -> item.getRarity(stack), "getRarity"); runChecked(stack, ()
-             * -> item.hasCustomEntity(stack), "hasCustomEntity"); runChecked(stack, () ->
-             * item.getSmeltingExperience(stack), "getSmeltingExperience"); runChecked(stack, () ->
-             * item.getMaxDamage(stack), "getMaxDamage"); runChecked(stack, () -> item.getDamage(stack), "getDamage");
-             * runChecked(stack, stack::isItemDamaged, "isItemDamaged"); runChecked(stack, () -> item.hasEffect(stack,
-             * 0), "hasEffect"); runChecked(stack, () -> item.getItemEnchantability(stack), "getItemEnchantability");
-             * runChecked(stack, () -> item.isBeaconPayment(stack), "isBeaconPayment"); runChecked(stack, () ->
-             * item.getDamage(stack), "getDamage"); runChecked(stack, () -> item.getDamage(stack), "getDamage");
-             * runChecked(stack, () -> item.getDamage(stack), "getDamage");
-             */
-        }
-
-        // Generate itemlist, permutations, orders, collapsibleitems, and informationhandler stacks
-        @Override
-        @SuppressWarnings("unchecked")
-        public void execute() {
-            if (!NEIClientConfig.isEnabled() || NEIClientUtils.mc().thePlayer == null) return;
-
-            ThreadOperationTimer timer = getTimer(NEIClientConfig.getItemLoadingTimeout());
-            LayoutManager.itemsLoaded = true;
-            loadFinished = false;
-
-            SearchField.searchParser.clearCache();
-            ItemSorter.instance.ordering.clear();
-            CollapsibleItems.clearCache();
-            TooltipFilter.clearCache();
-            InformationHandler.clearCache();
-
-            List<ItemStack> items = new ArrayList<>();
-            ListMultimap<Item, ItemStack> itemMap = ArrayListMultimap.create();
-            ItemStackSet unique = new ItemStackSet();
-
-            StreamSupport.stream(((Iterable<Item>) Item.itemRegistry).spliterator(), true).forEach(item -> {
-                if (item == null || item.delegate.name() == null || erroredItems.contains(item)) return;
-
-                try {
-                    timer.reset(item);
-                    List<ItemStack> permutations = getPermutations(item);
-                    timer.reset();
-
-                    for (ItemStack stack : permutations) {
-                        if (!unique.contains(stack)) {
-
-                            synchronized (unique) {
-                                unique.add(stack);
-                            }
-
-                            synchronized (items) {
-                                items.add(stack);
-                            }
-
-                            forceTagCompoundInitialization(stack);
-
-                            CollapsibleItems.putItem(stack);
-                            TooltipFilter.getSearchTooltip(stack);
-                            InformationHandler.populateStacks(stack);
-                        }
-                    }
-
-                    synchronized (itemMap) {
-                        itemMap.putAll(item, permutations);
-                    }
-                } catch (Throwable t) {
-                    NEIServerConfig.logger.error("Removing item: {} from list.", item, t);
-                    erroredItems.add(item);
-                }
-
-            });
-
-            int index = 0;
-            for (Item item : (Iterable<Item>) Item.itemRegistry) {
-                for (ItemStack stack : itemMap.get(item)) {
-                    ItemSorter.instance.ordering.put(stack, index++);
-                }
-            }
-
-            if (interrupted()) return;
-            ItemList.items = items;
-            ItemList.itemMap = itemMap;
-            for (ItemsLoadedCallback callback : loadCallbacks) callback.itemsLoaded();
-
-            if (interrupted()) return;
-            updateOrdering(ItemList.items);
-
-            loadFinished = true;
-
-            FavoriteRecipes.loadAutoGeneratedRecipes();
-            SubsetWidget.updateHiddenItems();
-            ItemPanels.bookmarkPanel.load();
-            updateFilter.restart();
-        }
-    };
-
     public static ForkJoinPool forkJoinPool;
 
     static {
@@ -458,35 +226,12 @@ public class ItemList {
         forkJoinPool = new ForkJoinPool(poolSize, factory, null, false);
     }
 
-    public static final RestartableTask updateFilter = new RestartableTask("NEI Item Filtering") {
+    // The item list pipeline lives in ItemListLoader; these references are kept for backward compatibility.
+    public static final RestartableTask loadItems = ItemListLoader.loadItems;
 
-        @Override
-        public void execute() {
+    public static final RestartableTask refreshItems = ItemListLoader.refreshItems;
 
-            if (!loadFinished) return;
-            ItemFilter filter = getItemListFilter();
-            ArrayList<ItemStack> filtered;
-
-            try {
-                filtered = ItemList.forkJoinPool.submit(
-                        () -> items.parallelStream().filter(filter::matches)
-                                .collect(Collectors.toCollection(ArrayList::new)))
-                        .get();
-            } catch (InterruptedException | ExecutionException e) {
-                filtered = new ArrayList<>();
-                e.printStackTrace();
-                stop();
-            }
-
-            if (interrupted()) return;
-
-            filtered.sort(Comparator.comparingInt(ItemList.ordering::get));
-
-            if (interrupted()) return;
-
-            ItemPanel.updateItemList(filtered);
-        }
-    };
+    public static final RestartableTask updateFilter = ItemListLoader.updateFilter;
 
     /**
      * @deprecated Use updateFilter.restart()

src/main/java/codechicken/nei/ItemListLoader.java

@@ -0,0 +1,385 @@
+package codechicken.nei;
+
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ExecutionException;
+import java.util.stream.Collectors;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.init.Blocks;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.IIcon;
+import net.minecraftforge.fluids.IFluidContainerItem;
+
+import com.google.common.base.Throwables;
+import com.google.common.collect.ArrayListMultimap;
+import com.google.common.collect.ListMultimap;
+
+import codechicken.nei.ItemList.ItemsLoadedCallback;
+import codechicken.nei.ThreadOperationTimer.TimeoutException;
+import codechicken.nei.api.ItemFilter;
+import codechicken.nei.api.ItemInfo;
+import codechicken.nei.recipe.InformationHandler;
+import codechicken.nei.recipe.RecipeHandlerRef;
+import codechicken.nei.recipe.RepairRecipeHandler;
+import codechicken.nei.search.TooltipFilter;
+import cpw.mods.fml.common.FMLLog;
+
+public class ItemListLoader {
+
+    private static final HashSet<Item> erroredItems = new HashSet<>();
+    private static final HashSet<String> stackTraces = new HashSet<>();
+    private static Map<ItemStack, Integer> ordering = new HashMap<>();
+
+    private ItemListLoader() {}
+
+    private static void damageSearch(Item item, List<ItemStack> permutations) {
+        final Set<String> damageIconSet = new HashSet<>();
+        final EntityPlayer player = Minecraft.getMinecraft().thePlayer;
+
+        for (int damage = 0; damage < 16; damage++) {
+            try {
+                final ItemStack itemstack = new ItemStack(item, 1, damage);
+                final IIcon icon = item.getIconIndex(itemstack);
+                final String key = itemstack.getDisplayName() + "@"
+                        + (icon == null ? 0 : icon.hashCode())
+                        + "@"
+                        + getInformation(itemstack, player);
+
+                if (damageIconSet.add(key)) {
+                    permutations.add(itemstack);
+                }
+            } catch (TimeoutException t) {
+                throw t;
+            } catch (Throwable t) {
+                NEIServerUtils.logOnce(
+                        t,
+                        stackTraces,
+                        "Ommiting " + item + ":" + damage + " " + item.getClass().getSimpleName(),
+                        item.toString());
+            }
+        }
+    }
+
+    private static String getInformation(ItemStack stack, EntityPlayer player) {
+        try {
+            final List<String> tooltip = new ArrayList<>();
+            stack.getItem().addInformation(stack, player, tooltip, false);
+            return String.join("\n", tooltip);
+        } catch (Throwable ignored) {}
+
+        return "";
+    }
+
+    private static void updateOrdering(List<ItemStack> items) {
+        final Map<ItemStack, Integer> newOrdering = new HashMap<>();
+
+        if (!CollapsibleItems.isEmpty()) {
+            final HashMap<Integer, Integer> groups = new HashMap<>();
+            int orderIndex = 0;
+
+            for (ItemStack stack : items) {
+                final int groupIndex = CollapsibleItems.getGroupIndex(stack);
+
+                if (groupIndex == -1) {
+                    newOrdering.put(stack, orderIndex++);
+                } else {
+
+                    if (!groups.containsKey(groupIndex)) {
+                        groups.put(groupIndex, orderIndex++);
+                    }
+
+                    newOrdering.put(stack, groups.get(groupIndex));
+                }
+            }
+        } else {
+            int orderIndex = 0;
+
+            for (ItemStack stack : items) {
+                newOrdering.put(stack, orderIndex++);
+            }
+        }
+
+        ordering = newOrdering;
+    }
+
+    private static List<ItemStack> getPermutations(Item item) {
+        final List<ItemStack> permutations = new LinkedList<>(ItemInfo.itemOverrides.get(item));
+
+        if (permutations.isEmpty()) {
+            item.getSubItems(item, null, permutations);
+        }
+
+        if (permutations.isEmpty()) {
+            damageSearch(item, permutations);
+        }
+
+        permutations.addAll(ItemInfo.itemVariants.get(item));
+
+        return permutations.stream()
+                .filter(
+                        stack -> stack.getItem() != null && stack.getItem().delegate.name() != null
+                                && !ItemInfo.isHidden(stack))
+                .collect(Collectors.toList());
+    }
+
+    private static void runChecked(ItemStack stack, Runnable action, String reason) {
+        int hashOld = 0;
+        if (stack.hasTagCompound()) {
+            hashOld = stack.stackTagCompound.hashCode();
+        }
+
+        action.run();
+
+        if (stack.hasTagCompound() && hashOld != stack.stackTagCompound.hashCode()) {
+            FMLLog.warning(
+                    "NEI: Forced tag update with reason (" + reason + ") for " + stack + "(" + stack.getItem() + ")");
+        }
+    }
+
+    private static void forceTagCompoundInitialization(ItemStack stack) {
+        Item item = stack.getItem();
+        if (item == null) {
+            return;
+        }
+        if (item instanceof IFluidContainerItem fluidItem) {
+            runChecked(stack, () -> fluidItem.getFluid(stack), "getFluid");
+        }
+        runChecked(stack, () -> item.isDamaged(stack), "isDamaged");
+        runChecked(stack, () -> item.getDamage(stack), "getDamage");
+        runChecked(stack, () -> item.showDurabilityBar(stack), "showDurabilityBar");
+        runChecked(stack, () -> item.getAttributeModifiers(stack), "getAttributeModifiers");
+        runChecked(stack, () -> item.getDurabilityForDisplay(stack), "getDurabilityForDisplay");
+        runChecked(stack, () -> item.getItemStackLimit(stack), "getItemStackLimit");
+        runChecked(stack, () -> item.getToolClasses(stack), "getToolClasses");
+        runChecked(stack, () -> item.getUnlocalizedNameInefficiently(stack), "getUnlocalizedNameInefficiently");
+        runChecked(stack, () -> item.hasEffect(stack), "hasEffect");
+        runChecked(stack, () -> item.getDigSpeed(stack, Blocks.stone, 0), "getDigSpeed");
+
+        /*
+         * unused... for now runChecked(stack, () -> GameRegistry.getFuelValue(stack), "getFuelValue");
+         * runChecked(stack, () -> item.getUnlocalizedName(stack), "getUnlocalizedName"); runChecked(stack, () ->
+         * item.doesContainerItemLeaveCraftingGrid(stack), "doesContainerItemLeaveCraftingGrid"); runChecked(stack, ()
+         * -> item.getItemUseAction(stack), "getItemUseAction"); runChecked(stack, () ->
+         * item.getMaxItemUseDuration(stack), "getMaxItemUseDuration"); runChecked(stack, () ->
+         * item.getPotionEffect(stack), "getPotionEffect"); runChecked(stack, () -> item.isPotionIngredient(stack),
+         * "isPotionIngredient"); runChecked(stack, () -> item.getRarity(stack), "getRarity"); runChecked(stack, () ->
+         * item.hasCustomEntity(stack), "hasCustomEntity"); runChecked(stack, () -> item.getSmeltingExperience(stack),
+         * "getSmeltingExperience"); runChecked(stack, () -> item.getMaxDamage(stack), "getMaxDamage");
+         * runChecked(stack, () -> item.getDamage(stack), "getDamage"); runChecked(stack, stack::isItemDamaged,
+         * "isItemDamaged"); runChecked(stack, () -> item.hasEffect(stack, 0), "hasEffect"); runChecked(stack, () ->
+         * item.getItemEnchantability(stack), "getItemEnchantability"); runChecked(stack, () ->
+         * item.isBeaconPayment(stack), "isBeaconPayment"); runChecked(stack, () -> item.getDamage(stack), "getDamage");
+         * runChecked(stack, () -> item.getDamage(stack), "getDamage"); runChecked(stack, () -> item.getDamage(stack),
+         * "getDamage");
+         */
+    }
+
+    @SuppressWarnings("unchecked")
+    private static List<ItemStack> gatherItems(ThreadOperationTimer timer) {
+        ItemSorter.instance.ordering.clear();
+
+        List<ItemStack> items = new ArrayList<>();
+        ListMultimap<Item, ItemStack> itemMap = ArrayListMultimap.create();
+        ItemStackSet unique = new ItemStackSet();
+
+        final List<Item> registryItems = new ArrayList<>();
+        for (Item item : (Iterable<Item>) Item.itemRegistry) registryItems.add(item);
+
+        registryItems.parallelStream().forEach(item -> {
+            if (item == null || item.delegate.name() == null || erroredItems.contains(item)) return;
+
+            try {
+                timer.reset(item);
+                List<ItemStack> permutations = getPermutations(item);
+                timer.reset();
+
+                synchronized (itemMap) {
+                    itemMap.putAll(item, permutations);
+                }
+            } catch (Throwable t) {
+                NEIServerConfig.logger.error(
+                        "Removing item: {} from list.\n{}: {}",
+                        item,
+                        t.getMessage(),
+                        Throwables.getStackTraceAsString(t));
+                erroredItems.add(item);
+            }
+
+        });
+
+        int index = 0;
+        for (Item item : (Iterable<Item>) Item.itemRegistry) {
+            for (ItemStack stack : itemMap.get(item)) {
+                ItemSorter.instance.ordering.put(stack, index++);
+
+                if (!unique.contains(stack)) {
+                    unique.add(stack);
+                    items.add(stack);
+                }
+            }
+        }
+
+        ItemList.itemMap = itemMap;
+
+        return items;
+    }
+
+    private static void buildItemCaches(List<ItemStack> items) {
+        SearchField.searchParser.clearCache();
+        TooltipFilter.clearCache();
+        InformationHandler.clearCache();
+
+        items.parallelStream().forEach(stack -> {
+            try {
+                forceTagCompoundInitialization(stack);
+                InformationHandler.populateStacks(stack);
+            } catch (Throwable t) {
+                NEIServerConfig.logger.error(
+                        "Failed to build caches for: {}\n{}: {}",
+                        stack,
+                        t.getMessage(),
+                        Throwables.getStackTraceAsString(t));
+            }
+        });
+    }
+
+    private static void indexCollapsibleItems(List<ItemStack> items) {
+        CollapsibleItems.clearCache();
+        items.parallelStream().forEach(CollapsibleItems::putItem);
+    }
+
+    public static final RestartableTask loadItems = new RestartableTask("NEI Item Loading") {
+
+        @Override
+        public void execute() {
+            if (!NEIClientConfig.isEnabled() || NEIClientUtils.mc().thePlayer == null) return;
+
+            final ThreadOperationTimer timer = getTimer(NEIClientConfig.getItemLoadingTimeout());
+            LayoutManager.itemsLoaded = true;
+            ItemList.loadFinished = false;
+            warmTooltips.stop();
+
+            List<ItemStack> items = gatherItems(timer);
+
+            if (interrupted()) return;
+            buildItemCaches(items);
+            indexCollapsibleItems(items);
+
+            if (interrupted()) return;
+            ItemSorter.sort(items);
+
+            if (interrupted()) return;
+            ItemList.items = items;
+            for (ItemsLoadedCallback callback : ItemList.loadCallbacks) callback.itemsLoaded();
+
+            if (interrupted()) return;
+            updateOrdering(ItemList.items);
+
+            ItemList.loadFinished = true;
+
+            RepairRecipeHandler.findRepairRecipesOnceParallel();
+            RecipeHandlerRef.clearCache();
+            FavoriteRecipes.reload();
+            SubsetWidget.updateHiddenItems();
+            updateFilter.restart();
+            warmTooltips.restart();
+            loadBookmarks.restart();
+            loadHistory.restart();
+        }
+    };
+
+    public static final RestartableTask warmTooltips = new RestartableTask("NEI Tooltip Caching") {
+
+        @Override
+        public void execute() {
+            if (!ItemList.loadFinished) return;
+            // Use the common pool, not ItemList.forkJoinPool, so it does not queue behind updateFilter.
+            ItemList.items.parallelStream().forEach(stack -> {
+                if (interrupted()) return;
+                try {
+                    TooltipFilter.getSearchTooltip(stack);
+                } catch (Throwable ignored) {}
+            });
+        }
+    };
+
+    public static final RestartableTask loadBookmarks = new RestartableTask("NEI Bookmark Loading") {
+
+        @Override
+        public void execute() {
+            ItemPanels.bookmarkPanel.load();
+        }
+    };
+
+    public static final RestartableTask loadHistory = new RestartableTask("NEI History Loading") {
+
+        @Override
+        public void execute() {
+            ItemPanels.itemPanel.historyPanel.load();
+        }
+    };
+
+    public static final RestartableTask refreshItems = new RestartableTask("NEI Item Reordering") {
+
+        @Override
+        public void execute() {
+            if (!ItemList.loadFinished) return;
+
+            final List<ItemStack> items = new ArrayList<>(ItemList.items);
+
+            indexCollapsibleItems(items);
+
+            if (interrupted()) return;
+            ItemSorter.sort(items);
+
+            if (interrupted()) return;
+            ItemList.items = items;
+            updateOrdering(ItemList.items);
+
+            FavoriteRecipes.reload();
+            SubsetWidget.updateHiddenItems();
+            updateFilter.restart();
+            loadBookmarks.restart();
+            loadHistory.restart();
+        }
+    };
+
+    public static final RestartableTask updateFilter = new RestartableTask("NEI Item Filtering") {
+
+        @Override
+        public void execute() {
+
+            if (!ItemList.loadFinished) return;
+            ItemFilter filter = ItemList.getItemListFilter();
+            ArrayList<ItemStack> filtered;
+
+            try {
+                filtered = ItemList.forkJoinPool.submit(
+                        () -> ItemList.items.parallelStream().filter(filter::matches)
+                                .collect(Collectors.toCollection(ArrayList::new)))
+                        .get();
+            } catch (InterruptedException | ExecutionException e) {
+                filtered = new ArrayList<>();
+                e.printStackTrace();
+                stop();
+            }
+
+            if (interrupted()) return;
+
+            filtered.sort(Comparator.comparingInt(ordering::get));
+
+            if (interrupted()) return;
+
+            ItemPanel.updateItemList(filtered);
+        }
+    };
+}

src/main/java/codechicken/nei/ItemMobSpawner.java

@@ -23,6 +23,7 @@ import net.minecraft.util.EnumChatFormatting;
 import net.minecraft.util.IIcon;
 import net.minecraft.world.World;
 import net.minecraftforge.client.MinecraftForgeClient;
+import net.minecraftforge.common.util.ForgeDirection;
 
 import cpw.mods.fml.relauncher.Side;
 import cpw.mods.fml.relauncher.SideOnly;
@@ -65,27 +66,41 @@ public class ItemMobSpawner extends ItemBlock {
     @Override
     public boolean onItemUse(ItemStack itemstack, EntityPlayer entityplayer, World world, int x, int y, int z, int side,
             float hitX, float hitY, float hitZ) {
+        int targetX = x;
+        int targetY = y;
+        int targetZ = z;
 
-        placedX = x;
-        placedY = y;
-        placedZ = z;
+        if (!world.getBlock(x, y, z).isReplaceable(world, x, y, z)) {
+            ForgeDirection direction = ForgeDirection.getOrientation(side);
+            targetX += direction.offsetX;
+            targetY += direction.offsetY;
+            targetZ += direction.offsetZ;
+        }
+
+        placedX = targetX;
+        placedY = targetY;
+        placedZ = targetZ;
+
+        String mobType = getMobTypeFromItemStack(itemstack);
 
         boolean placed = super.onItemUse(itemstack, entityplayer, world, x, y, z, side, hitX, hitY, hitZ);
 
-        if (placed && !world.isRemote) {
-            TileEntity tileEntity = world.getTileEntity(x, y, z);
-            if (tileEntity instanceof TileEntityMobSpawner) {
-                TileEntityMobSpawner spawner = (TileEntityMobSpawner) tileEntity;
-                String mobType = getMobTypeFromItemStack(itemstack);
-                if (mobType != null) {
-                    spawner.func_145881_a().setEntityName(mobType);
-                    world.markBlockForUpdate(x, y, z);
-                    NEICPH.sendMobSpawnerID(x, y, z, mobType);
+        if (placed) {
+            TileEntity tileEntity = world.getTileEntity(targetX, targetY, targetZ);
+
+            if (tileEntity instanceof TileEntityMobSpawner spawner && mobType != null) {
+                spawner.func_145881_a().setEntityName(mobType);
+
+                if (!world.isRemote) {
+                    world.markBlockForUpdate(targetX, targetY, targetZ);
+                    NEICPH.sendMobSpawnerID(targetX, targetY, targetZ, mobType);
                 }
             }
+
             return true;
         }
-        return placed;
+
+        return false;
     }
 
     private String getMobTypeFromItemStack(ItemStack stack) {
@@ -223,7 +238,6 @@ public class ItemMobSpawner extends ItemBlock {
         NEIClientConfig.logger.debug("Cleared all entity references from cache");
     }
 
-    @SuppressWarnings("unchecked")
     public static void loadSpawners() {
         if (loaded) {
             return;
@@ -231,8 +245,7 @@ public class ItemMobSpawner extends ItemBlock {
 
         synchronized (ItemMobSpawner.class) {
             try {
-                for (Map.Entry<Class<? extends Entity>, String> entry : ((Map<Class<? extends Entity>, String>) EntityList.classToStringMapping)
-                        .entrySet()) {
+                for (Map.Entry<Class<? extends Entity>, String> entry : EntityList.classToStringMapping.entrySet()) {
 
                     Class<? extends Entity> clazz = entry.getKey();
                     String name = entry.getValue();
@@ -308,7 +321,7 @@ public class ItemMobSpawner extends ItemBlock {
 
         String name = ENTITY_CLASS_TO_NAME_CACHE.get(entityClass);
         if (name == null) {
-            name = (String) EntityList.classToStringMapping.get(entityClass);
+            name = EntityList.classToStringMapping.get(entityClass);
         }
 
         return name != null && shouldRegisterEntity(entityClass, name);

src/main/java/codechicken/nei/ItemPanel.java

@@ -75,13 +75,7 @@ public class ItemPanel extends PanelWidget<ItemsPanelGrid> {
     }
 
     public static void updateItemList(ArrayList<ItemStack> newItems) {
-        final ItemsPanelGrid grid = ItemPanels.itemPanel.getGrid();
-
-        if (grid.rawItems.size() != newItems.size()) {
-            grid.setPage(0);
-        }
-
-        grid.setItems(newItems);
+        ItemPanels.itemPanel.getGrid().setItems(newItems);
         ItemPanels.itemPanel.realItems = newItems;
     }
 
@@ -122,8 +116,7 @@ public class ItemPanel extends PanelWidget<ItemsPanelGrid> {
     }
 
     @Override
-    public Rectangle4i calculateBounds() {
-        final GuiContainer gui = NEIClientUtils.getGuiContainer();
+    public Rectangle4i calculateBounds(GuiContainer gui) {
         final int maxWidth = (gui.width - 176) / 2 - PADDING * 2;
         final int maxHeight = gui.height - PADDING * 2;
         final int freeSpace = (gui.width - gui.xSize) / 2 - PADDING * 2;

src/main/java/codechicken/nei/ItemQuantityField.java

@@ -83,11 +83,7 @@ public class ItemQuantityField extends TextField {
         }
 
         if (amount == 0) {
-            amount = NEIClientConfig.showItemQuantityWidget() ? NEIClientConfig.getItemQuantity() : 0;
-
-            if (amount == 0) {
-                amount = StackInfo.itemStackToNBT(stack).hasKey("gtFluidName") ? 144 : stack.getMaxStackSize();
-            }
+            amount = NEIClientUtils.getScrollMultiplier(stack);
         }
 
         return StackInfo.withAmount(stack, amount);

src/main/java/codechicken/nei/ItemStackMap.java

@@ -46,8 +46,7 @@ public class ItemStackMap<T> {
         }
 
         public boolean equals(Object o) {
-            if (!(o instanceof StackMetaKey)) return false;
-            StackMetaKey t = (StackMetaKey) o;
+            if (!(o instanceof StackMetaKey t)) return false;
             return damage == t.damage && Objects.equal(tag, t.tag);
         }
     }
@@ -218,8 +217,7 @@ public class ItemStackMap<T> {
     public void put(ItemStack key, T value) {
         if (key == null || key.getItem() == null) return;
 
-        DetailMap map = itemMap.get(key.getItem());
-        if (map == null) itemMap.put(key.getItem(), map = new DetailMap());
+        DetailMap map = itemMap.computeIfAbsent(key.getItem(), k -> new DetailMap());
         map.put(key, value);
     }
 

src/main/java/codechicken/nei/ItemZoom.java

@@ -42,7 +42,7 @@ public class ItemZoom extends Widget implements IContainerInputHandler {
 
         if (this.stack != null && this.availableAreaWidth >= SLOT_SIZE * 2
                 && (NEIClientConfig.getBooleanSetting("inventory.itemzoom.enabled")
-                        || NEIClientConfig.isKeyHashDown("gui.itemzoom_hold"))
+                        || KeyManager.isKeyDown("itemzoom.hold"))
                 && GuiContainerManager.shouldShowTooltip(NEIClientUtils.getGuiContainer())) {
             final float inverseScaleFactor = 1.0f / this.scale;
             final float screenScale = getScreenScale();
@@ -74,7 +74,7 @@ public class ItemZoom extends Widget implements IContainerInputHandler {
 
             if (NEIClientConfig.getBooleanSetting("inventory.itemzoom.enabled")
                     && NEIClientConfig.getBooleanSetting("inventory.itemzoom.helpText")) {
-                String keyName = NEIClientConfig.getKeyName("gui.itemzoom_toggle");
+                String keyName = KeyManager.getKeyName("itemzoom.toggle", NEIClientUtils.SHIFT_HASH);
 
                 if (keyName != null) {
                     String helpText = NEIClientUtils.translate("itemzoom.toggle", keyName);
@@ -111,8 +111,14 @@ public class ItemZoom extends Widget implements IContainerInputHandler {
             this.xPosition = (availableAreaWidth - this.scale * SLOT_SIZE) / 2;
             this.availableAreaWidth = (int) (availableAreaWidth / screenScale);
 
-            if (availableAreaWidth / screenScale >= mouse.x) {
-                this.xPosition += gui.width * screenScale - availableAreaWidth;
+            final float rightSideShift = gui.width * screenScale - availableAreaWidth;
+            final boolean leftSideFree = availableAreaWidth / screenScale < mouse.x;
+            final boolean rightSideFree = mouse.x < gui.width - availableAreaWidth / screenScale;
+
+            final boolean showOnRight = leftSideFree && rightSideFree ? !preferLeftSide() : !leftSideFree;
+
+            if (showOnRight) {
+                this.xPosition += rightSideShift;
             }
 
             try {
@@ -128,6 +134,22 @@ public class ItemZoom extends Widget implements IContainerInputHandler {
         }
     }
 
+    private boolean preferLeftSide() {
+        switch (NEIClientConfig.getIntSetting("inventory.itemzoom.preferredSide")) {
+            case 1:
+                return true;
+            case 2:
+                return false;
+        }
+
+        final int leftCount = NEIClientConfig.isBookmarkPanelHidden()
+                || ItemPanels.bookmarkPanel.getGrid().getPerPage() == 0 ? 0 : ItemPanels.bookmarkPanel.getGrid().size();
+        final int rightCount = ItemPanels.itemPanel.getGrid().getPerPage() == 0 ? 0
+                : ItemPanels.itemPanel.getGrid().size();
+
+        return leftCount <= rightCount;
+    }
+
     private float getPointSize(GuiContainer gui) {
         final float screenScale = 1.0f / getScreenScale();
         final float availableAreaWidth = (gui.width - (gui.xSize + gui.width) / 2) * screenScale;
@@ -197,25 +219,30 @@ public class ItemZoom extends Widget implements IContainerInputHandler {
 
     @Override
     public boolean lastKeyTyped(GuiContainer gui, char keyChar, int keyID) {
+        return false;
+    }
 
-        if (NEIClientConfig.isKeyHashDown("gui.itemzoom_toggle")) {
+    @Override
+    public boolean onHotkeyPressed(GuiContainer gui) {
+
+        if (KeyManager.isHashDown("itemzoom.toggle", NEIClientUtils.SHIFT_HASH)) {
             NEIClientConfig.getSetting("inventory.itemzoom.enabled")
                     .setBooleanValue(!NEIClientConfig.getBooleanSetting("inventory.itemzoom.enabled"));
             return true;
         }
 
-        if (this.stack != null && NEIClientConfig.isKeyHashDown("gui.itemzoom_hold")) {
+        if (this.stack != null && KeyManager.isKeyDown("itemzoom.hold")) {
             return true;
         }
 
-        if (this.stack != null && NEIClientConfig.isKeyHashDown("gui.itemzoom_zoom_in")) {
+        if (this.stack != null && KeyManager.isKeyDown("itemzoom.zoom_in")) {
             increaseZoom(gui);
             previousKeyboardRepeatEnabled = Keyboard.areRepeatEventsEnabled();
             Keyboard.enableRepeatEvents(true);
             return true;
         }
 
-        if (this.stack != null && NEIClientConfig.isKeyHashDown("gui.itemzoom_zoom_out")) {
+        if (this.stack != null && KeyManager.isKeyDown("itemzoom.zoom_out")) {
             decreaseZoom(gui);
             previousKeyboardRepeatEnabled = Keyboard.areRepeatEventsEnabled();
             Keyboard.enableRepeatEvents(true);

src/main/java/codechicken/nei/ItemsGrid.java

@@ -15,9 +15,11 @@ import net.minecraft.client.shader.Framebuffer;
 import net.minecraft.item.ItemStack;
 
 import org.lwjgl.opengl.GL11;
+import org.lwjgl.opengl.GL30;
 
 import codechicken.lib.vec.Rectangle4i;
 import codechicken.nei.api.GuiInfo;
+import codechicken.nei.api.INEIGuiHandler;
 import codechicken.nei.guihook.GuiContainerManager;
 import codechicken.nei.recipe.Recipe.RecipeId;
 import codechicken.nei.recipe.StackInfo;
@@ -27,7 +29,7 @@ public abstract class ItemsGrid<T extends ItemsGrid.ItemsGridSlot, M extends Ite
     protected static class ScreenCapture {
 
         private long nextCacheRefresh = 0;
-        private Framebuffer framebuffer;
+        private final Framebuffer framebuffer;
 
         public ScreenCapture() {
             this.framebuffer = new Framebuffer(1, 1, true);
@@ -51,7 +53,7 @@ public abstract class ItemsGrid<T extends ItemsGrid.ItemsGridSlot, M extends Ite
         }
 
         public void captureScreen(Runnable callback, int mode) {
-            GL11.glPushAttrib(GL11.GL_ENABLE_BIT | GL11.GL_COLOR_BUFFER_BIT | GL11.GL_LIGHTING_BIT);
+            GL11.glPushAttrib(GL11.GL_ENABLE_BIT);
 
             resetFramebuffer();
             this.framebuffer.bindFramebuffer(false);
@@ -84,6 +86,21 @@ public abstract class ItemsGrid<T extends ItemsGrid.ItemsGridSlot, M extends Ite
             } else {
                 this.framebuffer.framebufferClear();
             }
+
+            // Copy stencil values (required by mui2)
+            OpenGlHelper.func_153171_g(GL30.GL_READ_FRAMEBUFFER, minecraft.getFramebuffer().framebufferObject);
+            OpenGlHelper.func_153171_g(GL30.GL_DRAW_FRAMEBUFFER, this.framebuffer.framebufferObject);
+            GL30.glBlitFramebuffer(
+                    0,
+                    0,
+                    minecraft.displayWidth,
+                    minecraft.displayHeight,
+                    0,
+                    0,
+                    minecraft.displayWidth,
+                    minecraft.displayHeight,
+                    GL11.GL_DEPTH_BUFFER_BIT | GL11.GL_STENCIL_BUFFER_BIT,
+                    GL11.GL_NEAREST);
         }
 
         public void renderCapturedScreen() {
@@ -332,16 +349,24 @@ public abstract class ItemsGrid<T extends ItemsGrid.ItemsGridSlot, M extends Ite
     }
 
     public void setGridSize(int mleft, int mtop, int w, int h) {
+        final int newWidth = Math.max(0, w);
+        final int newHeight = Math.max(0, h);
+        final boolean changed = marginLeft != mleft || marginTop != mtop || width != newWidth || height != newHeight;
+
         marginLeft = mleft;
         marginTop = mtop;
 
-        width = Math.max(0, w);
-        height = Math.max(0, h);
+        width = newWidth;
+        height = newHeight;
 
         columns = width / SLOT_SIZE;
         rows = height / SLOT_SIZE;
 
         paddingLeft = (width % SLOT_SIZE) / 2;
+
+        if (changed) {
+            onGridChanged();
+        }
     }
 
     public void shiftPage(int shift) {
@@ -380,7 +405,10 @@ public abstract class ItemsGrid<T extends ItemsGrid.ItemsGridSlot, M extends Ite
     }
 
     public void refresh(GuiContainer gui) {
-        updateGuiOverlapSlots(gui);
+        final int gridRenderingCacheMode = getGridRenderingCacheMode();
+        if (gridRenderingCacheMode <= 0 || screenCapture == null || screenCapture.needRefresh(gridRenderingCacheMode)) {
+            updateGuiOverlapSlots(gui);
+        }
         shiftPage(0);
     }
 
@@ -393,11 +421,12 @@ public abstract class ItemsGrid<T extends ItemsGrid.ItemsGridSlot, M extends Ite
         perPage = columns * rows;
 
         if (gui != null) {
+            final INEIGuiHandler[] handlers = GuiInfo.getGuiHandlersSnapshot();
             if (NEIClientConfig.optimizeGuiOverlapComputation()) {
-                checkGuiOverlap(gui, 0, columns - 2, 1);
-                checkGuiOverlap(gui, columns - 1, 1, -1);
+                checkGuiOverlap(gui, handlers, 0, columns - 2, 1);
+                checkGuiOverlap(gui, handlers, columns - 1, 1, -1);
             } else {
-                checkGuiOverlap(gui, 0, columns, 1);
+                checkGuiOverlap(gui, handlers, 0, columns, 1);
             }
         }
 
@@ -406,7 +435,7 @@ public abstract class ItemsGrid<T extends ItemsGrid.ItemsGridSlot, M extends Ite
         }
     }
 
-    private void checkGuiOverlap(GuiContainer gui, int start, int end, int dir) {
+    private void checkGuiOverlap(GuiContainer gui, INEIGuiHandler[] handlers, int start, int end, int dir) {
         boolean validColumn = false;
 
         for (int c = start; c != end && (!NEIClientConfig.optimizeGuiOverlapComputation() || !validColumn); c += dir) {
@@ -416,7 +445,7 @@ public abstract class ItemsGrid<T extends ItemsGrid.ItemsGridSlot, M extends Ite
                 final int idx = columns * r + c;
                 if (idx >= 0 && idx < invalidSlotMap.length
                         && !invalidSlotMap[idx]
-                        && GuiInfo.hideItemPanelSlot(gui, getSlotRect(r, c))) {
+                        && GuiInfo.hideItemPanelSlot(gui, getSlotRect(r, c), handlers)) {
                     invalidSlotMap[idx] = true;
                     validColumn = false;
                     perPage--;

src/main/java/codechicken/nei/ItemsPanelGrid.java

@@ -89,6 +89,10 @@ public class ItemsPanelGrid extends ItemsGrid<ItemsPanelGrid.ItemsPanelGridSlot,
     public void refresh(GuiContainer gui) {
 
         if (this.newItems != null) {
+            if (this.rawItems.size() != this.newItems.size()) {
+                this.page = 0;
+            }
+
             this.groupItems.clear();
             this.itemToGroup.clear();
             this.forceExpand = false;

src/main/java/codechicken/nei/ItemsTooltipLineHandler.java

@@ -4,6 +4,7 @@ import static codechicken.lib.gui.GuiDraw.fontRenderer;
 
 import java.awt.Dimension;
 import java.util.ArrayList;
+import java.util.IdentityHashMap;
 import java.util.List;
 import java.util.Map;
 
@@ -17,56 +18,265 @@ import org.lwjgl.opengl.GL12;
 
 import codechicken.lib.gui.GuiDraw;
 import codechicken.lib.gui.GuiDraw.ITooltipLineHandler;
+import codechicken.lib.vec.Rectangle4i;
+import codechicken.nei.NEIClientUtils.Alignment;
 import codechicken.nei.guihook.GuiContainerManager;
 import codechicken.nei.recipe.StackInfo;
 import codechicken.nei.util.ReadableNumberConverter;
 
 public class ItemsTooltipLineHandler implements ITooltipLineHandler {
 
-    protected static final int SLOT_SIZE = 18;
-    protected static final int MAX_COLUMNS = 11;
-    protected static final int MARGIN_TOP = 2;
+    @FunctionalInterface
+    public interface AmountRenderer {
 
-    protected String label;
-    protected EnumChatFormatting labelColor = EnumChatFormatting.GRAY;
-    protected List<ItemStack> items;
-    protected int activeStackIndex = -1;
-    protected Dimension size = new Dimension();
-    protected boolean saveStackSize = false;
-    protected int columns = 0;
-    protected int count = 0;
-    protected int rows = 0;
-    protected int length = 0;
-
-    public ItemsTooltipLineHandler(String label, List<ItemStack> items) {
-        this(label, items, true, 5);
+        void draw(int x, int y, ItemStack stack, long amount);
     }
 
-    public ItemsTooltipLineHandler(String label, List<ItemStack> items, boolean saveStackSize, int maxRows) {
-        this.label = label;
-        this.items = groupingItemStacks(items);
-        this.saveStackSize = saveStackSize;
-        this.length = this.items.size();
+    public static class NoAmountRenderer implements AmountRenderer {
 
-        if (this.length > 0) {
-            this.columns = Math.min(MAX_COLUMNS, this.length);
-            this.rows = Math.min(maxRows, (int) Math.ceil((float) this.length / this.columns));
+        @Override
+        public void draw(int x, int y, ItemStack stack, long amount) {
+            GuiContainerManager.drawItem(x, y, stack, true, "");
+        }
 
-            this.size.width = Math.max(this.columns * SLOT_SIZE, fontRenderer.getStringWidth(this.label) + 15);
-            this.size.height = this.rows * SLOT_SIZE + fontRenderer.FONT_HEIGHT + 2 + MARGIN_TOP;
+        protected static void drawAmountText(String text, Rectangle4i rect, int color, Alignment alignment) {
+            NEIClientUtils.drawNEIOverlayText(text, rect, 1, color, true, alignment);
+        }
+    }
 
-            this.count = Math.min(
-                    this.length,
-                    Math.min(
-                            this.columns * this.rows,
-                            this.length > MAX_COLUMNS * maxRows ? (MAX_COLUMNS * maxRows) : Integer.MAX_VALUE));
+    public static class TotalAmountRenderer extends NoAmountRenderer {
 
-            if (this.items.size() > this.count) {
-                String text = "+" + (this.items.size() - this.count);
-                this.count -= (int) Math.ceil((float) (fontRenderer.getStringWidth(text) - 2) / SLOT_SIZE);
+        private static class AmountText {
+
+            public final String text;
+            public final Alignment alignment;
+
+            public AmountText(String text, Alignment alignment) {
+                this.text = text;
+                this.alignment = alignment;
             }
         }
 
+        private final Map<ItemStack, AmountText> cache = new IdentityHashMap<>();
+
+        @Override
+        public void draw(int x, int y, ItemStack stack, long amount) {
+            super.draw(x, y, stack, amount);
+            drawAmount(new Rectangle4i(x, y, SLOT_SIZE - 2, SLOT_SIZE - 2), stack, amount);
+        }
+
+        protected void drawAmount(Rectangle4i rect, ItemStack stack, long amount) {
+            final AmountText amountText = this.cache.computeIfAbsent(stack, key -> {
+                final boolean isFluidDisplay = StackInfo.isFluidDisplayItem(key);
+                final String text = formatAmount(key, amount);
+
+                return new AmountText(
+                        isFluidDisplay && !text.isEmpty() ? text + "L" : text,
+                        isFluidDisplay ? Alignment.BottomLeft : Alignment.BottomRight);
+            });
+
+            if (!amountText.text.isEmpty()) {
+                drawAmountText(amountText.text, rect, 0xFFFFFF, amountText.alignment);
+            }
+        }
+
+        protected String formatAmount(ItemStack stack, long amount) {
+            return amount == 0 ? "" : ReadableNumberConverter.INSTANCE.toWideReadableForm(amount);
+        }
+    }
+
+    public static class StacksAmountRenderer extends NoAmountRenderer {
+
+        private static class StacksText {
+
+            public final String stacks;
+            public final String remainder;
+            public final int color;
+
+            public StacksText(String stacks, String remainder, int color) {
+                this.stacks = stacks;
+                this.remainder = remainder;
+                this.color = color;
+            }
+        }
+
+        private final Map<ItemStack, StacksText> cache = new IdentityHashMap<>();
+
+        @Override
+        public void draw(int x, int y, ItemStack stack, long amount) {
+            super.draw(x, y, stack, amount);
+            drawAmount(new Rectangle4i(x, y, SLOT_SIZE - 2, SLOT_SIZE - 2), stack, amount);
+        }
+
+        protected void drawAmount(Rectangle4i rect, ItemStack stack, long amount) {
+            final StacksText stacksText = this.cache.computeIfAbsent(stack, key -> formatAmount(key, amount));
+
+            if (!stacksText.stacks.isEmpty()) {
+                drawAmountText(stacksText.stacks, rect, stacksText.color, Alignment.TopLeft);
+            }
+
+            if (!stacksText.remainder.isEmpty()) {
+                drawAmountText(stacksText.remainder, rect, stacksText.color, Alignment.BottomRight);
+            }
+        }
+
+        private StacksText formatAmount(ItemStack stack, long amount) {
+            final long stackSize = StackInfo.isFluidDisplayItem(stack) ? FLUID_STACK_SIZE
+                    : Math.max(1, stack.getMaxStackSize());
+            final long stacks = amount / stackSize;
+            final long remainder = amount % stackSize;
+            final String prefix = getPrefix(stack);
+
+            return new StacksText(
+                    stacks > 0 ? prefix + "x" + ReadableNumberConverter.INSTANCE.toWideReadableForm(stacks) : "",
+                    remainder > 0
+                            ? (stacks > 0 ? "+" : prefix)
+                                    + ReadableNumberConverter.INSTANCE.toWideReadableForm(remainder)
+                            : "",
+                    getColor(stack));
+        }
+
+        protected String getPrefix(ItemStack stack) {
+            return "";
+        }
+
+        protected int getColor(ItemStack stack) {
+            return 0xFFFFFF;
+        }
+    }
+
+    protected static final int SLOT_SIZE = 18;
+    protected static final int ICON_SIZE = 16;
+    protected static final int ICON_OFFSET = 1;
+    protected static final int MAX_COLUMNS = 11;
+    protected static final int MARGIN_TOP = 2;
+    protected static final int LABEL_MARGIN = 15;
+    protected static final int NAME_MARGIN = 2;
+    protected static final int DEFAULT_MAX_ROWS = 5;
+    protected static final int FLUID_STACK_SIZE = 144;
+
+    protected final List<ItemStack> items;
+    protected final List<Long> amounts = new ArrayList<>();
+    protected final List<String> names = new ArrayList<>();
+
+    protected AmountRenderer amountRenderer;
+
+    protected String label;
+    protected EnumChatFormatting labelColor = EnumChatFormatting.GRAY;
+
+    protected int activeStackIndex = -1;
+    protected Dimension size = new Dimension();
+
+    protected int maxNamedRows = Integer.MAX_VALUE;
+
+    protected int length = 0;
+    protected int rows = 0;
+    protected int nameRows = 0;
+    protected int gridColumns = 0;
+    protected int gridCount = 0;
+
+    public static ItemsTooltipLineHandler of(String label, List<ItemStack> items, int maxRows, int maxNamedRows) {
+        return new ItemsTooltipLineHandler(label, items, true, maxRows, maxNamedRows);
+    }
+
+    public ItemsTooltipLineHandler(String label, List<ItemStack> items) {
+        this(label, items, true, DEFAULT_MAX_ROWS, 0);
+    }
+
+    public ItemsTooltipLineHandler(String label, List<ItemStack> items, boolean saveStackSize, int maxRows) {
+        this(label, items, saveStackSize, maxRows, 0);
+    }
+
+    protected ItemsTooltipLineHandler(String label, List<ItemStack> items, boolean saveStackSize, int maxRows,
+            int maxNamedRows) {
+        this.label = label;
+        this.items = groupingItemStacks(items);
+        this.amountRenderer = saveStackSize ? new TotalAmountRenderer() : new NoAmountRenderer();
+        this.length = this.items.size();
+        this.maxNamedRows = maxNamedRows;
+
+        setMaxRows(maxRows);
+    }
+
+    protected static int headerHeight() {
+        return fontRenderer.FONT_HEIGHT + 2 + MARGIN_TOP;
+    }
+
+    public ItemsTooltipLineHandler setMaxRows(int maxRows) {
+        if (this.length == 0) {
+            return this;
+        }
+
+        this.names.clear();
+        this.nameRows = 0;
+
+        if (!layoutWithNames(maxRows)) {
+            layoutAsGrid(maxRows);
+        }
+
+        this.size.height = this.rows * SLOT_SIZE + headerHeight();
+
+        return this;
+    }
+
+    public int getRows() {
+        return this.rows;
+    }
+
+    protected boolean layoutWithNames(int maxRows) {
+        final int maxNames = Math.min(this.maxNamedRows, this.length <= maxRows ? this.length : maxRows - 1);
+        final int[] lineWidth = new int[maxNames + 1];
+        lineWidth[0] = labelWidth();
+
+        for (int index = 0; index < maxNames; index++) {
+            final String name = this.items.get(index).getDisplayName();
+            this.names.add(name);
+            lineWidth[index + 1] = Math
+                    .max(lineWidth[index], SLOT_SIZE + NAME_MARGIN + fontRenderer.getStringWidth(name));
+        }
+
+        for (int named = maxNames; named >= 0; named--) {
+            final int rest = this.length - named;
+            final int width = Math.max(lineWidth[named], Math.min(rest, MAX_COLUMNS) * SLOT_SIZE);
+            final int columns = Math.max(1, width / SLOT_SIZE);
+            final int restRows = (int) Math.ceil((float) rest / columns);
+
+            if (named + restRows <= maxRows) {
+                this.nameRows = named;
+                this.gridColumns = columns;
+                this.gridCount = rest;
+                this.rows = named + restRows;
+                this.size.width = width;
+                return true;
+            }
+        }
+
+        this.names.clear();
+        return false;
+    }
+
+    protected void layoutAsGrid(int maxRows) {
+        this.gridColumns = Math.min(MAX_COLUMNS, this.length);
+        this.rows = Math.min(maxRows, (int) Math.ceil((float) this.length / this.gridColumns));
+        this.gridCount = Math.min(this.length, this.gridColumns * this.rows);
+        this.size.width = Math.max(this.gridColumns * SLOT_SIZE, labelWidth());
+
+        if (this.gridCount < this.length) {
+            this.gridCount -= reservedColumns(this.length - this.gridCount);
+        }
+    }
+
+    protected int labelWidth() {
+        return fontRenderer.getStringWidth(this.label) + LABEL_MARGIN;
+    }
+
+    protected int reservedColumns(int hidden) {
+        return (int) Math.ceil((float) (fontRenderer.getStringWidth("+" + hidden) - 2) / SLOT_SIZE);
+    }
+
+    public ItemsTooltipLineHandler setAmountRenderer(AmountRenderer amountRenderer) {
+        this.amountRenderer = amountRenderer;
+        return this;
     }
 
     public void setActiveStack(ItemStack activeStack) {
@@ -79,6 +289,10 @@ public class ItemsTooltipLineHandler implements ITooltipLineHandler {
         return this.activeStackIndex == -1 ? null : this.items.get(this.activeStackIndex);
     }
 
+    public List<ItemStack> getItems() {
+        return this.items;
+    }
+
     public boolean isEmpty() {
         return this.items.isEmpty();
     }
@@ -92,6 +306,11 @@ public class ItemsTooltipLineHandler implements ITooltipLineHandler {
         this.labelColor = color;
     }
 
+    public void setLabel(String label) {
+        this.label = label;
+        this.size.width = Math.max(this.size.width, labelWidth());
+    }
+
     @Override
     public void draw(int x, int y) {
         if (this.length == 0) return;
@@ -110,62 +329,79 @@ public class ItemsTooltipLineHandler implements ITooltipLineHandler {
         final int zTranslation = GuiContainerManager.TOOLTIP_Z_OFFSET;
         GL11.glTranslatef(xTranslation, yTranslation, zTranslation);
 
-        int indexShift = 0;
+        final int gridShift = gridIndexShift();
 
-        if (this.activeStackIndex != -1) {
-            indexShift = Math.max(0, Math.min(this.items.size() - this.count, this.activeStackIndex - this.count + 2));
+        for (int index = 0; index < this.nameRows; index++) {
+            drawSlot(0, index * SLOT_SIZE, index);
         }
 
-        for (int index = 0; index < this.count && index + indexShift < this.items.size(); index++) {
-            ItemStack drawStack = this.items.get(index + indexShift);
-            int col = index % this.columns;
-            int row = index / this.columns;
+        for (int index = 0; index < this.gridCount; index++) {
+            drawSlot(
+                    (index % this.gridColumns) * SLOT_SIZE,
+                    (this.nameRows + index / this.gridColumns) * SLOT_SIZE,
+                    this.nameRows + gridShift + index);
+        }
 
-            String stackSize = !this.saveStackSize || drawStack.stackSize == 0 ? ""
-                    : ReadableNumberConverter.INSTANCE.toWideReadableForm(drawStack.stackSize);
+        NEIClientUtils.gl2DRenderContext(() -> {
+            final int textShift = ICON_OFFSET + Math.round((ICON_SIZE - fontRenderer.FONT_HEIGHT) / 2f);
 
-            if (this.activeStackIndex == index + indexShift) {
-                NEIClientUtils.gl2DRenderContext(
-                        () -> GuiDraw.drawRect(col * SLOT_SIZE - 1, row * SLOT_SIZE - 1, 18, 18, 0x66555555));
+            for (int index = 0; index < this.nameRows; index++) {
+                fontRenderer.drawStringWithShadow(
+                        EnumChatFormatting.GRAY + this.names.get(index),
+                        SLOT_SIZE + NAME_MARGIN,
+                        index * SLOT_SIZE + textShift,
+                        0xFFFFFF);
             }
 
-            drawItem(col * SLOT_SIZE, row * SLOT_SIZE, drawStack, stackSize);
-        }
+            final int hidden = this.length - this.nameRows - this.gridCount;
 
-        if (this.count < this.items.size()) {
-            final String text = "+" + (this.items.size() - this.count);
-
-            NEIClientUtils.gl2DRenderContext(() -> {
+            if (hidden > 0) {
+                final String text = "+" + hidden;
                 fontRenderer.drawStringWithShadow(
-                        text,
-                        MAX_COLUMNS * SLOT_SIZE - fontRenderer.getStringWidth(text) - 2,
-                        (this.rows - 1) * SLOT_SIZE + (SLOT_SIZE - fontRenderer.FONT_HEIGHT) / 2,
-                        0xee555555);
-            });
-        }
+                        EnumChatFormatting.GRAY + text,
+                        this.size.width - fontRenderer.getStringWidth(text) - 2,
+                        (this.rows - 1) * SLOT_SIZE + textShift,
+                        0xFFFFFF);
+            }
+        });
 
         GL11.glTranslatef(-xTranslation, -yTranslation, -zTranslation);
         GL11.glPopAttrib();
     }
 
-    protected void drawItem(int x, int y, ItemStack drawStack, String stackSize) {
-        GuiContainerManager.drawItem(x, y, drawStack, true, stackSize);
+    protected int gridIndexShift() {
+        if (this.nameRows > 0 || this.activeStackIndex == -1) {
+            return 0;
+        }
+
+        return Math.max(0, Math.min(this.length - this.gridCount, this.activeStackIndex - this.gridCount + 2));
+    }
+
+    protected void drawSlot(int x, int y, int index) {
+        if (this.activeStackIndex == index) {
+            NEIClientUtils.gl2DRenderContext(() -> GuiDraw.drawRect(x, y, SLOT_SIZE, SLOT_SIZE, 0x66555555));
+        }
+
+        drawStackWithAmount(x, y, index);
+    }
+
+    protected void drawStackWithAmount(int x, int y, int index) {
+        this.amountRenderer.draw(x + ICON_OFFSET, y + ICON_OFFSET, this.items.get(index), this.amounts.get(index));
     }
 
     private List<ItemStack> groupingItemStacks(List<ItemStack> items) {
         final List<ItemStack> result = new ArrayList<>();
 
         for (Map.Entry<NBTTagCompound, Long> entry : ItemStackAmount.of(items).entrySet()) {
-            final ItemStack stack = StackInfo.loadFromNBT(entry.getKey(), Math.max(0, entry.getValue()));
-
-            if (entry.getKey().hasKey("gtFluidName")) {
-                stack.stackSize = 0;
-            }
-            result.add(stack);
+            result.add(StackInfo.loadFromNBT(entry.getKey(), 0));
+            this.amounts.add(Math.max(0, entry.getValue()));
         }
 
         if (result.isEmpty()) {
-            result.addAll(items);
+            for (ItemStack stack : items) {
+                result.add(stack);
+                this.amounts.add(0L);
+            }
         }
 
         return result;

src/main/java/codechicken/nei/KeyManager.java

@@ -2,14 +2,22 @@ package codechicken.nei;
 
 import java.util.HashMap;
 import java.util.LinkedList;
-import java.util.Map.Entry;
+import java.util.Map;
+import java.util.StringJoiner;
+import java.util.function.BooleanSupplier;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.settings.KeyBinding;
 
 import org.lwjgl.input.Keyboard;
+import org.lwjgl.input.Mouse;
 
 import codechicken.nei.util.NEIKeyboardUtils;
+import codechicken.nei.util.NEIMouseUtils;
+import cpw.mods.fml.client.registry.ClientRegistry;
 
 /**
- * Good old down/held/up keystate tracker
+ * Registers NEI key bindings as vanilla {@link KeyBinding}s and exposes their state to the rest of NEI.
  */
 public class KeyManager {
 
@@ -18,31 +26,173 @@ public class KeyManager {
         public void tickKeyStates();
     }
 
-    public static class KeyState {
+    public static LinkedList<IKeyStateTracker> trackers = new LinkedList<>();
+    private static final Map<String, KeyBinding> keyBindings = new HashMap<>();
+    private static final Map<String, String> keyAliases = new HashMap<>();
+    private static volatile boolean pendingOptionsReload = false;
+    private static int clickedButton = -1;
 
-        public boolean down;
-        public boolean held;
-        public boolean up;
+    static {
+        // Aliases for legacy keybinds
+        keyAliases.put("gui.recipe", "recipe.recipe");
+        keyAliases.put("gui.usage", "recipe.usage");
+        keyAliases.put("gui.hide_bookmarks", "bookmark.hide");
     }
 
-    public static HashMap<String, KeyState> keyStates = new HashMap<>();
-    public static LinkedList<IKeyStateTracker> trackers = new LinkedList<>();
+    public static KeyBinding registerKeyBinding(String ident, int defaultKey) {
+        return keyBindings.computeIfAbsent(ident, id -> {
+            final KeyBinding binding = new KeyBinding(
+                    "nei.options.keys." + id,
+                    NEIKeyboardUtils.unhash(defaultKey),
+                    categoryFor(id));
+            ClientRegistry.registerKeyBinding(binding);
+            return binding;
+        });
+    }
+
+    public static KeyBinding getKeyBinding(String ident) {
+        return keyBindings.get(keyAliases.getOrDefault(ident, ident));
+    }
+
+    public static boolean isRegistered(String description) {
+        for (KeyBinding binding : keyBindings.values()) {
+            if (binding.getKeyDescription().equals(description)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public static int getKeyCode(String ident) {
+        final KeyBinding binding = getKeyBinding(ident);
+        return binding == null ? Keyboard.KEY_NONE : binding.getKeyCode();
+    }
+
+    public static boolean isKeyDown(String ident) {
+        final KeyBinding binding = getKeyBinding(ident);
+
+        if (binding != null) {
+            final int keyCode = binding.getKeyCode();
+
+            if (keyCode < 0) {
+                final int button = keyCode + 100;
+                return Mouse.isButtonDown(button) || button == clickedButton;
+            } else if (keyCode > Keyboard.KEY_NONE && keyCode < Keyboard.KEYBOARD_SIZE) {
+                return Keyboard.isKeyDown(keyCode);
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Whether any NEI key binding is assigned to the given mouse button.
+     */
+    public static boolean isMouseBound(int button) {
+        for (KeyBinding binding : keyBindings.values()) {
+            if (binding.getKeyCode() == button - 100) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Runs a hotkey handler for a click of the given mouse button if the button is bound to any NEI key binding. The
+     * button is reported as down by {@link #isKeyDown} for the duration of the call, because the LWJGL button state can
+     * already be released when a quick click is processed.
+     *
+     * @return true if the click was consumed by the handler
+     */
+    public static boolean handleMouseHotkey(int button, BooleanSupplier handler) {
+        if (!isMouseBound(button)) {
+            return false;
+        }
+
+        final int previous = clickedButton;
+        clickedButton = button;
+
+        try {
+            return handler.getAsBoolean();
+        } finally {
+            clickedButton = previous;
+        }
+    }
+
+    public static boolean isHashDown(String ident) {
+        return isHashDown(ident, 0);
+    }
+
+    public static boolean isHashDown(String ident, int modifierMask) {
+
+        if (!isKeyDown(ident)) {
+            return false;
+        }
+
+        if (NEIKeyboardUtils.isHashKey(getKeyCode(ident))) {
+            return true;
+        }
+
+        return ((modifierMask & NEIKeyboardUtils.CTRL_HASH) != 0) == NEIClientUtils.controlKey()
+                && ((modifierMask & NEIKeyboardUtils.SHIFT_HASH) != 0) == NEIClientUtils.shiftKey()
+                && ((modifierMask & NEIKeyboardUtils.ALT_HASH) != 0) == NEIClientUtils.altKey();
+    }
+
+    public static String getKeyName(String ident) {
+        return getKeyName(ident, 0);
+    }
+
+    public static String getKeyName(String ident, int meta) {
+        final int keyCode = getKeyCode(ident);
+        return keyCode == Keyboard.KEY_NONE ? null : NEIKeyboardUtils.getKeyName(keyCode, meta);
+    }
+
+    public static String getKeyName(String ident, int meta, int mouseBind) {
+        final int keyCode = getKeyCode(ident);
+        return keyCode == Keyboard.KEY_NONE && mouseBind == NEIMouseUtils.MOUSE_BTN_NONE ? null
+                : getKeyName(keyCode, meta, mouseBind);
+    }
+
+    public static String getKeyName(int keyBind, int mouseBind) {
+        final int keyCode = NEIKeyboardUtils.unhash(keyBind);
+        return getKeyName(keyCode, keyBind - keyCode, mouseBind);
+    }
+
+    private static String getKeyName(int keyCode, int hash, int mouseBind) {
+        StringJoiner keyText = new StringJoiner(" + ");
+        String keyHash = keyCode == Keyboard.KEY_NONE && hash == 0 ? "" : NEIKeyboardUtils.getKeyName(keyCode, hash);
+        String mouseHash = mouseBind == NEIMouseUtils.MOUSE_BTN_NONE ? "" : NEIMouseUtils.getKeyName(mouseBind);
+
+        if (!keyHash.isEmpty()) {
+            keyText.add(keyHash);
+        }
+
+        if (!mouseHash.isEmpty()) {
+            keyText.add(mouseHash);
+        }
+
+        return keyText.toString();
+    }
+
+    public static boolean isPressed(String ident) {
+        final KeyBinding binding = getKeyBinding(ident);
+        return binding != null && binding.isPressed();
+    }
+
+    private static String categoryFor(String ident) {
+        final int dot = ident.indexOf('.');
+        return dot < 0 ? "nei.options.keys" : "nei.options.keys." + ident.substring(0, dot);
+    }
+
+    public static void requestOptionsReload() {
+        pendingOptionsReload = true;
+    }
 
     public static void tickKeyStates() {
-        for (Entry<String, KeyState> entry : keyStates.entrySet()) {
-            final int keyCode = NEIKeyboardUtils.unhash(NEIClientConfig.getKeyBinding(entry.getKey()));
-            final boolean down = keyCode > 0 && keyCode < Keyboard.KEYBOARD_SIZE && Keyboard.isKeyDown(keyCode);
-            final KeyState state = entry.getValue();
 
-            if (down) {
-                state.down = !state.held;
-                state.up = false;
-            } else {
-                state.up = state.held;
-                state.down = false;
-            }
-
-            state.held = down;
+        if (pendingOptionsReload) {
+            pendingOptionsReload = false;
+            Minecraft.getMinecraft().gameSettings.loadOptions();
         }
 
         for (IKeyStateTracker tracker : trackers) tracker.tickKeyStates();

src/main/java/codechicken/nei/LayoutManager.java

@@ -43,6 +43,7 @@ import net.minecraft.client.gui.GuiButton;
 import net.minecraft.client.gui.inventory.GuiContainer;
 import net.minecraft.client.gui.inventory.GuiContainerCreative;
 import net.minecraft.client.renderer.InventoryEffectRenderer;
+import net.minecraft.client.renderer.Tessellator;
 import net.minecraft.inventory.Slot;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
@@ -66,9 +67,9 @@ import codechicken.nei.guihook.IContainerInputHandler;
 import codechicken.nei.guihook.IContainerObjectHandler;
 import codechicken.nei.guihook.IContainerTooltipHandler;
 import codechicken.nei.recipe.AutoCraftingManager;
-import codechicken.nei.recipe.DebugHandlerWidget;
 import codechicken.nei.recipe.GuiRecipeTab;
 import codechicken.nei.recipe.RecipeCatalysts;
+import codechicken.nei.recipe.debug.DebugHandlerWidget;
 
 public class LayoutManager implements IContainerInputHandler, IContainerTooltipHandler, IContainerDrawHandler,
         IContainerObjectHandler, IKeyStateTracker {
@@ -92,7 +93,6 @@ public class LayoutManager implements IContainerInputHandler, IContainerTooltipH
     public static SubsetWidget dropDown;
     public static SearchField searchField;
     public static ItemZoom itemZoom;
-    public static DebugHandlerWidget recipeHandlerWidget;
 
     public static ButtonCycled options;
     public static ButtonCycled bookmarksButton;
@@ -119,11 +119,6 @@ public class LayoutManager implements IContainerInputHandler, IContainerTooltipH
      */
     public static boolean itemsLoaded = false;
 
-    /**
-     * Not present, Present
-     */
-    public static Image[] itemPresenceOverlays = new Image[2];
-
     public static void load() {
         API.addLayoutStyle(0, new LayoutStyleMinecraft());
 
@@ -225,22 +220,40 @@ public class LayoutManager implements IContainerInputHandler, IContainerTooltipH
     @Override
     public boolean lastKeyTyped(GuiContainer gui, char keyChar, int keyID) {
 
-        if (NEIClientConfig.isKeyHashDown("gui.hide")) {
+        if (isEnabled() && !isHidden()) {
+            for (Widget widget : controlWidgets) {
+                if (inputFocused == null) {
+                    widget.lastKeyTyped(keyID, keyChar);
+                }
+            }
+        }
+
+        return false;
+    }
+
+    @Override
+    public boolean onHotkeyPressed(GuiContainer gui) {
+
+        if (KeyManager.isKeyDown("gui.hide")) {
             toggleBooleanSetting("inventory.hidden");
             return true;
         }
 
-        if (NEIClientConfig.isKeyHashDown("gui.hide_bookmarks")) {
+        if (KeyManager.isKeyDown("bookmark.hide")) {
             toggleBooleanSetting("inventory.bookmarks.enabled");
             return true;
         }
 
-        if (NEIClientConfig.isKeyHashDown("gui.next_tooltip") && GuiContainerManager.incrementTooltipPage()) {
+        if (KeyManager.isKeyDown("gui.next_tooltip") && GuiContainerManager.incrementTooltipPage()) {
             return true;
         }
 
-        if (isEnabled() && !isHidden()) {
-            for (Widget widget : controlWidgets) if (inputFocused == null) widget.lastKeyTyped(keyID, keyChar);
+        if (isEnabled() && !isHidden() && inputFocused == null) {
+            for (Widget widget : controlWidgets) {
+                if (widget.onHotkeyPressed()) {
+                    return true;
+                }
+            }
         }
 
         return false;
@@ -406,8 +419,6 @@ public class LayoutManager implements IContainerInputHandler, IContainerTooltipH
 
         itemZoom = new ItemZoom();
 
-        recipeHandlerWidget = new DebugHandlerWidget();
-
         dropDown = new SubsetWidget();
         searchField = new SearchField("search");
         API.addItemFilter(searchField);
@@ -786,8 +797,7 @@ public class LayoutManager implements IContainerInputHandler, IContainerTooltipH
             addWidget(dropDown);
         }
 
-        addWidget(recipeHandlerWidget);
-        recipeHandlerWidget.setVisible();
+        addWidget(DebugHandlerWidget.instance);
     }
 
     public static LayoutStyle getLayoutStyle(int id) {
@@ -811,6 +821,8 @@ public class LayoutManager implements IContainerInputHandler, IContainerTooltipH
 
         if (!isEnabled()) return;
 
+        AutoFocusWidget.instance.guiTick();
+
         for (Widget widget : drawWidgets) widget.update();
     }
 
@@ -911,30 +923,35 @@ public class LayoutManager implements IContainerInputHandler, IContainerTooltipH
 
         GL11.glEnable(GL11.GL_TEXTURE_2D);
         changeTexture("textures/gui/widgets.png");
-        drawTexturedModalRect(x, y, tx1, ty1, w1, h1); // top left
-        drawTexturedModalRect(x, y2, tx1, ty2, w1, h2); // bottom left
+        final Tessellator tessellator = Tessellator.instance;
+        tessellator.startDrawingQuads();
+        addTexturedModalRect(tessellator, x, y, tx1, ty1, w1, h1); // top left
+        addTexturedModalRect(tessellator, x, y2, tx1, ty2, w1, h2); // bottom left
 
         for (int tile = 0; tile < wTiles; tile++) {
             final int tileX = x + w1 + 50 * tile;
-            drawTexturedModalRect(tileX, y, tx3, ty1, 50, h1); // top
-            drawTexturedModalRect(tileX, y2, tx3, ty2, 50, h2); // bottom
+            addTexturedModalRect(tessellator, tileX, y, tx3, ty1, 50, h1); // top
+            addTexturedModalRect(tessellator, tileX, y2, tx3, ty2, 50, h2); // bottom
         }
 
-        drawTexturedModalRect(x2, y, tx2, ty1, w2, h1); // top right
-        drawTexturedModalRect(x2, y2, tx2, ty2, w2, h2); // bottom right
+        addTexturedModalRect(tessellator, x2, y, tx2, ty1, w2, h1); // top right
+        addTexturedModalRect(tessellator, x2, y2, tx2, ty2, w2, h2); // bottom right
+        tessellator.draw();
 
         if (!is2DTexture) GL11.glDisable(GL11.GL_TEXTURE_2D);
     }
 
-    public static void drawItemPresenceOverlay(int slotX, int slotY, boolean isPresent, boolean slotHighlight) {
-
-        if (slotHighlight) {
-            NEIClientUtils.gl2DRenderContext(() -> drawRect(slotX, slotY, 16, 16, isPresent ? 0x8000AA00 : 0x80AA0000));
-        } else {
-            Image icon = itemPresenceOverlays[isPresent ? 1 : 0];
-            drawIcon(slotX + 16 - icon.width, slotY + 16 - icon.height, icon);
-        }
-
+    private static void addTexturedModalRect(Tessellator tessellator, int x, int y, int textureX, int textureY,
+            int width, int height) {
+        final double z = GuiDraw.gui.getZLevel();
+        final double u = textureX / 256D;
+        final double v = textureY / 256D;
+        final double maxU = (textureX + width) / 256D;
+        final double maxV = (textureY + height) / 256D;
+        tessellator.addVertexWithUV(x, y + height, z, u, maxV);
+        tessellator.addVertexWithUV(x + width, y + height, z, maxU, maxV);
+        tessellator.addVertexWithUV(x + width, y, z, maxU, v);
+        tessellator.addVertexWithUV(x, y, z, u, v);
     }
 
     public static LayoutManager instance() {
@@ -945,12 +962,12 @@ public class LayoutManager implements IContainerInputHandler, IContainerTooltipH
     public void tickKeyStates() {
         if (Minecraft.getMinecraft().currentScreen != null) return;
 
-        if (KeyManager.keyStates.get("world.dawn").down) timeButtons[0].onButtonPress(false);
-        if (KeyManager.keyStates.get("world.noon").down) timeButtons[1].onButtonPress(false);
-        if (KeyManager.keyStates.get("world.dusk").down) timeButtons[2].onButtonPress(false);
-        if (KeyManager.keyStates.get("world.midnight").down) timeButtons[3].onButtonPress(false);
-        if (KeyManager.keyStates.get("world.rain").down) rain.onButtonPress(false);
-        if (KeyManager.keyStates.get("world.heal").down) heal.onButtonPress(false);
-        if (KeyManager.keyStates.get("world.creative").down) gamemode.onButtonPress(false);
+        if (KeyManager.isPressed("world.dawn")) timeButtons[0].onButtonPress(false);
+        if (KeyManager.isPressed("world.noon")) timeButtons[1].onButtonPress(false);
+        if (KeyManager.isPressed("world.dusk")) timeButtons[2].onButtonPress(false);
+        if (KeyManager.isPressed("world.midnight")) timeButtons[3].onButtonPress(false);
+        if (KeyManager.isPressed("world.rain")) rain.onButtonPress(false);
+        if (KeyManager.isPressed("world.heal")) heal.onButtonPress(false);
+        if (KeyManager.isPressed("world.creative")) gamemode.onButtonPress(false);
     }
 }

src/main/java/codechicken/nei/LayoutStyleMinecraft.java

@@ -8,7 +8,6 @@ import org.lwjgl.opengl.GL11;
 
 import codechicken.lib.vec.Rectangle4i;
 import codechicken.nei.api.LayoutStyle;
-import codechicken.nei.drawable.DrawableBuilder;
 
 public class LayoutStyleMinecraft extends LayoutStyle {
 
@@ -38,10 +37,6 @@ public class LayoutStyleMinecraft extends LayoutStyle {
         LayoutManager.timeButtons[2].icon = new Image(144, 24, 12, 12);
         LayoutManager.timeButtons[3].icon = new Image(156, 24, 12, 12);
         LayoutManager.heal.icon = new Image(168, 24, 12, 12);
-        LayoutManager.itemPresenceOverlays[0] = new DrawableBuilder("nei:textures/nei_tabbed_sprites.png", 0, 40, 8, 8)
-                .build();
-        LayoutManager.itemPresenceOverlays[1] = new DrawableBuilder("nei:textures/nei_tabbed_sprites.png", 8, 40, 8, 8)
-                .build();
     }
 
     @Override
@@ -244,7 +239,11 @@ public class LayoutStyleMinecraft extends LayoutStyle {
 
         Image icon = b.getRenderIcon();
         if (icon == null) {
-            int colour = tex == 2 ? 0xffffa0 : tex == 0 ? 0x601010 : 0xe0e0e0;
+            int labelColor = b.getRenderLabelColor();
+            int colour = labelColor != 0 ? labelColor
+                    : tex == 2 ? ColorUtils.buttonLabelHover.getColor()
+                            : tex == 0 ? ColorUtils.buttonLabelDisabled.getColor()
+                                    : ColorUtils.buttonLabelNormal.getColor();
 
             drawStringC(b.getRenderLabel(), b.x + b.w / 2, b.y + (b.h - 8) / 2, colour);
         } else {

src/main/java/codechicken/nei/NEIActions.java

@@ -54,6 +54,7 @@ public class NEIActions {
         addAction("magnet", true);
         addAction("enchant", true);
         addAction("potion", true);
+        addAction("autocraft");
 
         canDisable.add("dawn");
         canDisable.add("noon");

src/main/java/codechicken/nei/NEICPH.java

@@ -6,6 +6,7 @@ import static codechicken.nei.PacketIDs.S2C;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.inventory.GuiInventory;
 import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.network.play.INetHandlerPlayClient;
 import net.minecraft.util.ChatComponentTranslation;
 import net.minecraft.world.World;
@@ -14,6 +15,7 @@ import codechicken.core.ClientUtils;
 import codechicken.lib.inventory.InventoryUtils;
 import codechicken.lib.packet.PacketCustom;
 import codechicken.lib.packet.PacketCustom.IClientPacketHandler;
+import codechicken.nei.commands.CommandBookmarkAdd;
 import cpw.mods.fml.relauncher.Side;
 
 public class NEICPH implements IClientPacketHandler {
@@ -56,6 +58,21 @@ public class NEICPH implements IClientPacketHandler {
             case S2C.OPEN_POTION_GUI:
                 ClientUtils.openSMPGui(packet.readUByte(), new GuiPotionCreator(mc.thePlayer.inventory));
                 break;
+            case S2C.CACHE_BOOKMARK_DATA:
+                handleCacheBookmarkData(packet);
+                break;
+            case S2C.SYNC:
+                ServerSync.onReply(packet.readInt());
+                break;
+        }
+    }
+
+    private void handleCacheBookmarkData(PacketCustom packet) {
+        final String payloadId = packet.readString();
+        final NBTTagCompound payloadTag = packet.readNBTTagCompound();
+
+        if (payloadTag != null) {
+            CommandBookmarkAdd.cachePayload(payloadId, payloadTag);
         }
     }
 
@@ -186,9 +203,9 @@ public class NEICPH implements IClientPacketHandler {
         packet.sendToServer();
     }
 
-    public static void sendChatLink(ItemStack stackover) {
+    public static void sendChatLink(NBTTagCompound payloadTag) {
         PacketCustom packet = new PacketCustom(channel, C2S.SEND_CHAT_ITEM_LINK);
-        packet.writeItemStack(stackover);
+        packet.writeNBTTagCompound(payloadTag);
         packet.sendToServer();
     }
 

src/main/java/codechicken/nei/NEIClientConfig.java

@@ -37,7 +37,6 @@ import codechicken.lib.config.ConfigTag;
 import codechicken.lib.config.ConfigTagParent;
 import codechicken.nei.api.API;
 import codechicken.nei.api.GuiInfo;
-import codechicken.nei.api.IConfigureNEI;
 import codechicken.nei.api.ItemInfo;
 import codechicken.nei.api.NEIInfo;
 import codechicken.nei.config.ConfigSet;
@@ -56,14 +55,11 @@ import codechicken.nei.config.OptionToggleButtonBoubs;
 import codechicken.nei.config.OptionUtilities;
 import codechicken.nei.config.preset.GuiPresetList;
 import codechicken.nei.event.NEIConfigsLoadedEvent;
-import codechicken.nei.recipe.DebugHandlerWidget;
 import codechicken.nei.recipe.GuiRecipeTab;
 import codechicken.nei.recipe.IRecipeHandler;
 import codechicken.nei.recipe.InformationHandler;
 import codechicken.nei.recipe.RecipeCatalysts;
-import codechicken.nei.recipe.RecipeInfo;
 import codechicken.nei.util.ItemUntranslator;
-import codechicken.nei.util.NEIKeyboardUtils;
 import codechicken.obfuscator.ObfuscationRun;
 
 public class NEIClientConfig {
@@ -149,6 +145,7 @@ public class NEIClientConfig {
         API.addOption(new OptionToggleButton("inventory.widgetsenabled"));
 
         tag.getTag("findFuelsParallel").getBooleanValue(true);
+        tag.getTag("showRepairOnlyForDamageableItems").getBooleanValue(true);
 
         tag.getTag("inventory.autocrafting").getBooleanValue(true);
         tag.getTag("inventory.dynamicFontSize").getBooleanValue(true);
@@ -202,6 +199,11 @@ public class NEIClientConfig {
         tag.getTag("inventory.bookmarks.showRecipeMarkerMode").setComment("Show Recipe Marker").getIntValue(0);
         API.addOption(new OptionCycled("inventory.bookmarks.showRecipeMarkerMode", 3, true));
 
+        tag.getTag("inventory.bookmarks.maxVerticalTooltipRows")
+                .setComment("Max rows in vertical crafting chain tooltip lists (0 - disable, always use grid)")
+                .getIntValue(12);
+        API.addOption(new OptionIntegerField("inventory.bookmarks.maxVerticalTooltipRows", 0, 50));
+
         tag.getTag("inventory.bookmarks.recipeMarkerColor").setComment("Color of the icon marker")
                 .getHexValue(0xADADAD);
         API.addOption(
@@ -214,9 +216,6 @@ public class NEIClientConfig {
                 .getBooleanValue(false);
         API.addOption(new OptionToggleButton("inventory.bookmarks.showRecipeHandlerIcon", true));
 
-        tag.getTag("inventory.bookmarks.recipeChainDir").getIntValue(1);
-        API.addOption(new OptionCycled("inventory.bookmarks.recipeChainDir", 2, true));
-
         tag.getTag("inventory.bookmarks.ignorePotionOverlap").setComment("Ignore overlap with potion effect HUD")
                 .getBooleanValue(false);
         API.addOption(new OptionToggleButton("inventory.bookmarks.ignorePotionOverlap", true));
@@ -229,6 +228,10 @@ public class NEIClientConfig {
                 .getBooleanValue(false);
         API.addOption(new OptionToggleButton("inventory.bookmarks.bookmarkRecipeWithCount", true));
 
+        tag.getTag("inventory.bookmarks.craftingTreeZoomWithoutModifier")
+                .setComment("Zoom Crafting Tree with mouse wheel without holding Ctrl").getBooleanValue(false);
+        API.addOption(new OptionToggleButton("inventory.bookmarks.craftingTreeZoomWithoutModifier", true));
+
         tag.getTag("inventory.guirecipe.jeiStyleTabs").setComment("Enable/disable JEI Style Tabs")
                 .getBooleanValue(true);
         API.addOption(new OptionToggleButtonBoubs("inventory.guirecipe.jeiStyleTabs", true));
@@ -264,6 +267,15 @@ public class NEIClientConfig {
                 .setComment("Require holding shift to move items when overlaying recipe").getBooleanValue(true);
         API.addOption(new OptionToggleButton("inventory.guirecipe.shiftOverlayRecipe", true));
 
+        tag.getTag("inventory.guirecipe.scrollPages").setComment("Disable page scroll when overlaying recipe")
+                .getBooleanValue(true);
+        API.addOption(new OptionToggleButton("inventory.guirecipe.scrollPages", true));
+
+        tag.getTag("inventory.guirecipe.freezeCycleOnHover")
+                .setComment("Stop cycling the recipe while hovering over an ingredient or a button")
+                .getBooleanValue(false);
+        API.addOption(new OptionToggleButton("inventory.guirecipe.freezeCycleOnHover", true));
+
         tag.getTag("inventory.guirecipe.profile").getBooleanValue(false);
         API.addOption(new OptionToggleButton("inventory.guirecipe.profile", true));
 
@@ -286,6 +298,32 @@ public class NEIClientConfig {
         tag.getTag("inventory.history.useRows").setComment("Rows used in historical areas").getIntValue(2);
         API.addOption(new OptionIntegerField("inventory.history.useRows", 1, 5));
 
+        tag.getTag("inventory.history.worldSpecific").setComment("Global or world specific history")
+                .getBooleanValue(false);
+        API.addOption(new OptionToggleButton("inventory.history.worldSpecific", true) {
+
+            @Override
+            public boolean onClick(int button) {
+                super.onClick(button);
+                ItemPanels.itemPanel.historyPanel.save();
+                ItemPanels.itemPanel.historyPanel.load();
+                return true;
+            }
+        });
+
+        tag.getTag("inventory.history.save").setComment("Enable/disable History save").getBooleanValue(false);
+        API.addOption(new OptionToggleButton("inventory.history.save", true) {
+
+            @Override
+            public boolean onClick(int button) {
+                super.onClick(button);
+                ItemPanels.itemPanel.historyPanel.save();
+                ItemPanels.itemPanel.historyPanel.load();
+                return true;
+            }
+
+        });
+
         tag.getTag("inventory.craftables.enabled").setComment("Enable/disable Craftables Panel").getBooleanValue(false);
         API.addOption(new OptionToggleButton("inventory.craftables.enabled", true));
 
@@ -308,7 +346,7 @@ public class NEIClientConfig {
                 super.onClick(button);
                 CollapsibleItems.saveStates();
                 CollapsibleItems.load();
-                LayoutManager.markItemsDirty();
+                ItemList.refreshItems.restart();
                 return true;
             }
         });
@@ -343,6 +381,11 @@ public class NEIClientConfig {
         tag.getTag("inventory.itemzoom.onlySolid").getBooleanValue(false);
         API.addOption(new OptionToggleButton("inventory.itemzoom.onlySolid", true));
 
+        tag.getTag("inventory.itemzoom.preferredSide")
+                .setComment("Which side to prefer showing the zoomed item on, when both sides are free.")
+                .getIntValue(0);
+        API.addOption(new OptionCycled("inventory.itemzoom.preferredSide", 3, true));
+
         tag.getTag("inventory.itemzoom.helpText")
                 .setComment("Display name \"Item Zoom\" and the hotkey to toggle this mod below the zoomed item.")
                 .getBooleanValue(true);
@@ -359,6 +402,13 @@ public class NEIClientConfig {
 
         setFavoriteDefaults(tag);
 
+        tag.getTag("inventory.tooltip.showFluidTemperature").setComment("Enabled show Fluid Temperature")
+                .getBooleanValue(true);
+        API.addOption(new OptionToggleButton("inventory.tooltip.showFluidTemperature", true));
+
+        tag.getTag("inventory.tooltip.showFluidState").setComment("Enabled show Fluid State").getBooleanValue(true);
+        API.addOption(new OptionToggleButton("inventory.tooltip.showFluidState", true));
+
         tag.getTag("inventory.itemIDs").getIntValue(1);
         API.addOption(new OptionCycled("inventory.itemIDs", 3, true));
 
@@ -796,7 +846,7 @@ public class NEIClientConfig {
         API.addOption(new OptionToggleButton("inventory.favorites.showRecipeTooltipInGui", true));
 
         tag.getTag("inventory.favorites.generateSingleRecipeFavorites")
-                .setComment("Automatically generate favorites for items with only one recipe").getBooleanValue(true);
+                .setComment("Automatically generate favorites for items with only one recipe").getBooleanValue(false);
         API.addOption(new OptionToggleButton("inventory.favorites.generateSingleRecipeFavorites", true) {
 
             @Override
@@ -807,39 +857,44 @@ public class NEIClientConfig {
             }
         });
 
-        tag.getTag("inventory.favorites.depth").setComment("Bookmark creation depth").getIntValue(3);
+        tag.getTag("inventory.favorites.depth").setComment("Bookmark creation depth").getIntValue(9);
         API.addOption(new OptionIntegerField("inventory.favorites.depth", 0, 100));
     }
 
     private static void setDefaultKeyBindings() {
-        API.addHashBind("gui.recipe", Keyboard.KEY_R);
-        API.addHashBind("gui.usage", Keyboard.KEY_U);
-        API.addKeyBind("gui.back", Keyboard.KEY_BACK);
-        API.addHashBind("gui.enchant", Keyboard.KEY_X);
-        API.addHashBind("gui.potion", Keyboard.KEY_P);
+        API.addKeyBind("gui.enchant", Keyboard.KEY_X);
+        API.addKeyBind("gui.potion", Keyboard.KEY_P);
         API.addKeyBind("gui.prev", Keyboard.KEY_PRIOR);
         API.addKeyBind("gui.next", Keyboard.KEY_NEXT);
-        API.addKeyBind("gui.prev_machine", Keyboard.KEY_UP);
-        API.addKeyBind("gui.next_machine", Keyboard.KEY_DOWN);
-        API.addKeyBind("gui.prev_recipe", Keyboard.KEY_LEFT);
-        API.addKeyBind("gui.next_recipe", Keyboard.KEY_RIGHT);
-        API.addHashBind("gui.hide", Keyboard.KEY_O);
-        API.addHashBind("gui.search", Keyboard.KEY_F);
-        API.addKeyBind("gui.bookmark", Keyboard.KEY_A);
-        API.addHashBind("gui.favorite", Keyboard.KEY_F + NEIClientUtils.SHIFT_HASH);
-        API.addHashBind("gui.remove_recipe", Keyboard.KEY_A + NEIClientUtils.SHIFT_HASH);
-        API.addKeyBind("gui.bookmark_pull_items", Keyboard.KEY_V);
+        API.addKeyBind("gui.hide", Keyboard.KEY_O);
+        API.addKeyBind("gui.search", Keyboard.KEY_F);
         API.addKeyBind("gui.overlay", Keyboard.KEY_S);
         API.addKeyBind("gui.craft_items", Keyboard.KEY_C);
-        API.addHashBind("gui.hide_bookmarks", Keyboard.KEY_B);
         API.addKeyBind("gui.getprevioussearch", Keyboard.KEY_UP);
         API.addKeyBind("gui.getnextsearch", Keyboard.KEY_DOWN);
         API.addKeyBind("gui.next_tooltip", Keyboard.KEY_Z);
 
-        API.addHashBind("gui.itemzoom_toggle", Keyboard.KEY_Z + NEIClientUtils.SHIFT_HASH);
-        API.addHashBind("gui.itemzoom_hold", 0);
-        API.addHashBind("gui.itemzoom_zoom_in", 0);
-        API.addHashBind("gui.itemzoom_zoom_out", 0);
+        API.addKeyBind("recipe.recipe", Keyboard.KEY_R);
+        API.addKeyBind("recipe.usage", Keyboard.KEY_U);
+        API.addKeyBind("recipe.back", Keyboard.KEY_BACK);
+        API.addKeyBind("recipe.prev_machine", Keyboard.KEY_UP);
+        API.addKeyBind("recipe.next_machine", Keyboard.KEY_DOWN);
+        API.addKeyBind("recipe.prev_recipe", Keyboard.KEY_LEFT);
+        API.addKeyBind("recipe.next_recipe", Keyboard.KEY_RIGHT);
+
+        API.addKeyBind("bookmark.add", Keyboard.KEY_A);
+        API.addKeyBind("bookmark.favorite", Keyboard.KEY_F);
+        API.addKeyBind("bookmark.favorite_item", Keyboard.KEY_F);
+        API.addKeyBind("bookmark.remove_recipe", Keyboard.KEY_A);
+        API.addKeyBind("bookmark.pull_items", Keyboard.KEY_V);
+        API.addKeyBind("bookmark.chat_link", Keyboard.KEY_L);
+        API.addKeyBind("bookmark.open_crafting_tree", Keyboard.KEY_T);
+        API.addKeyBind("bookmark.hide", Keyboard.KEY_B);
+
+        API.addKeyBind("itemzoom.toggle", Keyboard.KEY_Z);
+        API.addKeyBind("itemzoom.hold", 0);
+        API.addKeyBind("itemzoom.zoom_in", 0);
+        API.addKeyBind("itemzoom.zoom_out", 0);
 
         API.addKeyBind("world.chunkoverlay", Keyboard.KEY_F9);
         API.addKeyBind("world.moboverlay", Keyboard.KEY_F7);
@@ -851,10 +906,10 @@ public class NEIClientConfig {
         API.addKeyBind("world.rain", 0);
         API.addKeyBind("world.heal", 0);
         API.addKeyBind("world.creative", 0);
-        API.addHashBind("gui.copy_name", Keyboard.KEY_C + NEIClientUtils.CTRL_HASH);
-        API.addHashBind("gui.copy_oredict", Keyboard.KEY_D + NEIClientUtils.CTRL_HASH);
-        API.addHashBind("gui.copy_id", Keyboard.KEY_X + NEIClientUtils.CTRL_HASH);
-        API.addHashBind("gui.chat_link_item", Keyboard.KEY_L + NEIClientUtils.CTRL_HASH);
+
+        API.addKeyBind("copy.name", Keyboard.KEY_C);
+        API.addKeyBind("copy.oredict", Keyboard.KEY_D);
+        API.addKeyBind("copy.identifier", Keyboard.KEY_X);
     }
 
     public static OptionList getOptionList() {
@@ -876,9 +931,14 @@ public class NEIClientConfig {
 
             world = new ConfigSet(new File(specificDir, "NEI.dat"), new ConfigFile(new File(specificDir, "NEI.cfg")));
 
-            if (newWorld && Minecraft.getMinecraft().isSingleplayer()) {
-                world.config.getTag("inventory.cheatmode")
-                        .setIntValue(NEIClientUtils.mc().playerController.isInCreativeMode() ? 2 : 0);
+            if (newWorld && Minecraft.getMinecraft().isSingleplayer() && getLockedMode() == -1) {
+                final int globalMode = global.config.getTag("inventory.cheatmode").getIntValue();
+                final int worldMode = Math
+                        .min(globalMode, NEIClientUtils.mc().playerController.isInCreativeMode() ? 2 : 0);
+
+                if (worldMode != globalMode) {
+                    world.config.getTag("inventory.cheatmode").setIntValue(worldMode);
+                }
             }
 
             bootNEI();
@@ -915,9 +975,8 @@ public class NEIClientConfig {
             return;
         }
 
-        if (ItemPanels.bookmarkPanel != null) {
-            ItemPanels.bookmarkPanel.save();
-        }
+        ItemPanels.bookmarkPanel.save();
+        ItemPanels.itemPanel.historyPanel.save();
 
         SubsetWidget.saveHidden();
         FavoriteRecipes.save();
@@ -925,50 +984,28 @@ public class NEIClientConfig {
         world.saveNBT();
     }
 
-    private static final Map<String, String> keySettings = new HashMap<>();
-
     public static int getKeyBinding(String string) {
-        final String key = keySettings.computeIfAbsent(string, s -> "keys." + s);
-        return getSetting(key).getIntValue(Keyboard.KEY_NONE);
+        return KeyManager.getKeyCode(string);
     }
 
     public static void setDefaultKeyBinding(String string, int key) {
-        getSetting("keys." + string).getIntValue(key);
+        KeyManager.registerKeyBinding(string, key);
     }
 
     public static boolean isKeyHashDown(String string) {
-        final int hash = getKeyBinding(string);
-
-        if (hash != Keyboard.CHAR_NONE && Keyboard.getEventKeyState()) {
-            return KeyManager.keyStates.containsKey(string) ? Keyboard.isKeyDown(NEIKeyboardUtils.unhash(hash))
-                    : hash == NEIClientUtils.getKeyHash();
-        }
-
-        return false;
+        return KeyManager.isHashDown(string);
     }
 
     public static String getKeyName(String keyBind) {
-        return getKeyName(keyBind, 0);
+        return KeyManager.getKeyName(keyBind);
     }
 
     public static String getKeyName(String keyBind, int meta, int mouseBind) {
-        final int hash = getKeyBinding(keyBind);
-
-        if (hash == Keyboard.CHAR_NONE) {
-            return null;
-        }
-
-        return NEIClientUtils.getKeyName(hash + meta, mouseBind);
+        return KeyManager.getKeyName(keyBind, meta, mouseBind);
     }
 
     public static String getKeyName(String keyBind, int meta) {
-        final int hash = getKeyBinding(keyBind);
-
-        if (hash == Keyboard.CHAR_NONE) {
-            return null;
-        }
-
-        return NEIKeyboardUtils.getKeyName(hash + meta);
+        return KeyManager.getKeyName(keyBind, meta);
     }
 
     public static void bootNEI() {
@@ -977,7 +1014,6 @@ public class NEIClientConfig {
             // main NEI config loading
             ItemInfo.load();
             GuiInfo.load();
-            RecipeInfo.load();
             HeldItemHandler.load();
             LayoutManager.load();
             NEIController.load();
@@ -993,23 +1029,14 @@ public class NEIClientConfig {
                             ? NEIClientConfig.pluginsList.parallelStream()
                             : NEIClientConfig.pluginsList.stream();
 
-                    stream.forEach(clazz -> {
-                        try {
-                            IConfigureNEI config = (IConfigureNEI) clazz.getConstructor().newInstance();
-                            config.loadConfig();
-                            NEIModContainer.plugins.add(config);
-                            logger.debug("Loaded {}", clazz.getName());
-                        } catch (Throwable e) {
-                            logger.error("Failed to Load {}", clazz.getName(), e);
-                        }
-                    });
+                    PluginLoader.load(stream, NEIModContainer.plugins, logger);
 
+                    KeyManager.requestOptionsReload();
                     RecipeCatalysts.loadCatalystInfo();
                     SubsetWidget.loadCustomSubsets();
                     SubsetWidget.loadHidden();
                     CollapsibleItems.load();
                     ItemSorter.loadConfig();
-                    FavoriteRecipes.load();
 
                     // Set pluginNEIConfigLoaded here before posting the NEIConfigsLoadedEvent. This used to be the
                     // other way around, but apparently if your modpack includes 800 mods the event poster might not
@@ -1018,14 +1045,16 @@ public class NEIClientConfig {
                     // API. I don't expect any handler to do this, but who knows what modders have come up with...
                     pluginNEIConfigLoaded = true;
                     MinecraftForge.EVENT_BUS.post(new NEIConfigsLoadedEvent());
-
-                    DebugHandlerWidget.loadHandlerInfoPatch();
                     ItemList.loadItems.restart();
                 }
             }.start();
         } else {
             SubsetWidget.loadHidden();
-            ItemList.loadItems.restart();
+            if (ItemList.loadFinished) {
+                ItemList.refreshItems.restart();
+            } else {
+                ItemList.loadItems.restart();
+            }
         }
 
     }
@@ -1049,7 +1078,9 @@ public class NEIClientConfig {
     }
 
     public static boolean autocraftingEnabled() {
-        return getBooleanSetting("inventory.autocrafting");
+        if (!getBooleanSetting("inventory.autocrafting")) return false;
+        if (hasSMPCounterpart) return permissableActions.contains("autocraft");
+        return true;
     }
 
     public static boolean favoritesEnabled() {
@@ -1080,6 +1111,10 @@ public class NEIClientConfig {
         return getIntSetting("inventory.bookmarks.showRecipeMarkerMode");
     }
 
+    public static int getMaxVerticalTooltipRows() {
+        return getIntSetting("inventory.bookmarks.maxVerticalTooltipRows");
+    }
+
     public static boolean showItemQuantityWidget() {
         return getBooleanSetting("inventory.showItemQuantityWidget");
     }
@@ -1128,8 +1163,8 @@ public class NEIClientConfig {
         return getBooleanSetting("inventory.bookmarks.ignorePotionOverlap");
     }
 
-    public static int recipeChainDir() {
-        return getIntSetting("inventory.bookmarks.recipeChainDir");
+    public static boolean craftingTreeZoomWithoutModifier() {
+        return getBooleanSetting("inventory.bookmarks.craftingTreeZoomWithoutModifier");
     }
 
     public static boolean optimizeGuiOverlapComputation() {
@@ -1140,6 +1175,10 @@ public class NEIClientConfig {
         return getBooleanSetting("inventory.guirecipe.cycledIngredientsTooltip");
     }
 
+    public static boolean freezeCycleOnHover() {
+        return getBooleanSetting("inventory.guirecipe.freezeCycleOnHover");
+    }
+
     public static boolean requireShiftForOverlayRecipe() {
         return getBooleanSetting("inventory.guirecipe.shiftOverlayRecipe");
     }

src/main/java/codechicken/nei/NEIClientUtils.java

@@ -20,12 +20,12 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashMap;
+import java.util.IdentityHashMap;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
 import java.util.Set;
-import java.util.StringJoiner;
 import java.util.stream.Collectors;
 
 import net.minecraft.client.Minecraft;
@@ -39,8 +39,10 @@ import net.minecraft.inventory.Container;
 import net.minecraft.inventory.Slot;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.util.IChatComponent;
 import net.minecraft.util.ResourceLocation;
+import net.minecraftforge.fluids.FluidStack;
 
 import org.lwjgl.input.Keyboard;
 import org.lwjgl.opengl.GL11;
@@ -56,8 +58,9 @@ import codechicken.lib.vec.Rectangle4i;
 import codechicken.nei.api.GuiInfo;
 import codechicken.nei.api.IInfiniteItemHandler;
 import codechicken.nei.api.ItemInfo;
+import codechicken.nei.recipe.GuiOverlayButton.ItemOverlayState;
+import codechicken.nei.recipe.StackInfo;
 import codechicken.nei.util.NEIKeyboardUtils;
-import codechicken.nei.util.NEIMouseUtils;
 
 public class NEIClientUtils extends NEIServerUtils {
 
@@ -95,6 +98,7 @@ public class NEIClientUtils extends NEIServerUtils {
 
     /** Formats a number with group separator and at most 2 fraction digits. */
     private static final Map<Locale, DecimalFormat> decimalFormatters = new HashMap<>();
+    private static final DecimalFormat CHANCE_FORMAT = new DecimalFormat("##0.##%");
 
     public static final int ALT_HASH = NEIKeyboardUtils.ALT_HASH;
     public static final int SHIFT_HASH = NEIKeyboardUtils.SHIFT_HASH;
@@ -126,7 +130,7 @@ public class NEIClientUtils extends NEIServerUtils {
         });
     }
 
-    public static String formatNumber(long aNumber) {
+    public static String formatNumber(Number aNumber) {
 
         if (NEIModContainer.isGTNHLibLoaded()) {
             return NumberFormatUtil.formatNumber(aNumber);
@@ -135,7 +139,7 @@ public class NEIClientUtils extends NEIServerUtils {
         return getDecimalFormat().format(aNumber);
     }
 
-    public static String formatFluid(long aNumber) {
+    public static String formatFluid(Number aNumber) {
 
         if (NEIModContainer.isGTNHLibLoaded()) {
             return NumberFormatUtil.formatFluid(aNumber);
@@ -144,6 +148,10 @@ public class NEIClientUtils extends NEIServerUtils {
         return getDecimalFormat().format(aNumber) + " L";
     }
 
+    public static String formatChance(float chance) {
+        return CHANCE_FORMAT.format(chance);
+    }
+
     public static void deleteHeldItem() {
         deleteSlotStack(-999);
     }
@@ -289,6 +297,83 @@ public class NEIClientUtils extends NEIServerUtils {
         return InventoryUtils.getInsertibleQuantity(new InventoryRange(player.inventory, 0, 36), itemstack) > 0;
     }
 
+    public static List<ItemOverlayState> presenceOverlay(List<PositionedStack> ingredients, List<ItemStack> invStacks) {
+        final List<ItemOverlayState> states = new ArrayList<>();
+        final Map<ItemStack, Long> remainingFluid = new IdentityHashMap<>();
+
+        for (PositionedStack stack : ingredients) {
+            boolean found;
+
+            if (StackInfo.isFluidDisplayItem(stack.item)) {
+                final FluidStack requiredFluid = StackInfo.getFluid(stack.item);
+                found = requiredFluid != null && consumeFluid(invStacks, remainingFluid, requiredFluid);
+            } else {
+                found = false;
+
+                for (ItemStack is : invStacks) {
+                    if (is.stackSize > 0 && stack.contains(is)) {
+                        is.stackSize--;
+                        found = true;
+                        break;
+                    }
+                }
+            }
+
+            states.add(new ItemOverlayState(stack, found));
+        }
+
+        return states;
+    }
+
+    private static boolean consumeFluid(List<ItemStack> invStacks, Map<ItemStack, Long> remainingFluid,
+            FluidStack requiredFluid) {
+        long need = requiredFluid.amount;
+        final List<ItemStack> matched = new ArrayList<>();
+
+        for (ItemStack is : invStacks) {
+            if (need <= 0) {
+                break;
+            }
+
+            if (is.stackSize <= 0) {
+                continue;
+            }
+
+            final FluidStack invFluid = StackInfo.getFluid(is);
+
+            if (invFluid == null || !invFluid.isFluidEqual(requiredFluid)) {
+                continue;
+            }
+
+            final long available = remainingFluid.computeIfAbsent(is, k -> (long) invFluid.amount * is.stackSize);
+            if (available <= 0) {
+                continue;
+            }
+
+            matched.add(is);
+            need -= available;
+        }
+
+        if (need > 0) {
+            return false;
+        }
+
+        long remainingNeed = requiredFluid.amount;
+        for (ItemStack is : matched) {
+            final long available = remainingFluid.get(is);
+            final long consumed = Math.min(available, remainingNeed);
+
+            remainingFluid.put(is, available - consumed);
+            remainingNeed -= consumed;
+
+            if (remainingNeed <= 0) {
+                break;
+            }
+        }
+
+        return true;
+    }
+
     public static boolean shiftKey() {
         return Keyboard.isKeyDown(Keyboard.KEY_LSHIFT) || Keyboard.isKeyDown(Keyboard.KEY_RSHIFT);
     }
@@ -376,8 +461,8 @@ public class NEIClientUtils extends NEIServerUtils {
         else sendCommand(getStringSetting("command.heal"), mc().thePlayer.getCommandSenderName());
     }
 
-    public static void sendChatItemLink(ItemStack stackover) {
-        if (hasSMPCounterPart()) NEICPH.sendChatLink(stackover);
+    public static void sendChatItemLink(NBTTagCompound payload) {
+        if (hasSMPCounterPart()) NEICPH.sendChatLink(payload);
     }
 
     public static void toggleMagnetMode() {
@@ -451,55 +536,8 @@ public class NEIClientUtils extends NEIServerUtils {
         return Keyboard.isKeyDown(Keyboard.KEY_LMENU) || Keyboard.isKeyDown(Keyboard.KEY_RMENU);
     }
 
-    public static int getMetaHash() {
-        if (Keyboard.getEventKeyState()) {
-            int hash = 0;
-
-            if (altKey()) {
-                hash = hash | ALT_HASH;
-            }
-
-            if (shiftKey()) {
-                hash = hash | SHIFT_HASH;
-            }
-
-            if (controlKey()) {
-                hash = hash | CTRL_HASH;
-            }
-
-            return hash;
-        }
-
-        return 0;
-    }
-
-    public static int getKeyHash() {
-
-        if (Keyboard.getEventKeyState()) {
-            final int keycode = Keyboard.getEventKey();
-
-            if (!NEIKeyboardUtils.isHashKey(keycode)) {
-                return getMetaHash() + keycode;
-            }
-        }
-
-        return Keyboard.CHAR_NONE;
-    }
-
     public static String getKeyName(int keyBind, int mouseBind) {
-        StringJoiner keyText = new StringJoiner(" + ");
-        String keyHash = keyBind == Keyboard.KEY_NONE ? "" : NEIKeyboardUtils.getKeyName(keyBind);
-        String mouseHash = mouseBind == NEIMouseUtils.MOUSE_BTN_NONE ? "" : NEIMouseUtils.getKeyName(mouseBind);
-
-        if (!keyHash.isEmpty()) {
-            keyText.add(keyHash);
-        }
-
-        if (!mouseHash.isEmpty()) {
-            keyText.add(mouseHash);
-        }
-
-        return keyText.toString();
+        return KeyManager.getKeyName(keyBind, mouseBind);
     }
 
     public static void playClickSound() {
@@ -526,6 +564,16 @@ public class NEIClientUtils extends NEIServerUtils {
         }
     }
 
+    public static long getScrollMultiplier(ItemStack stack) {
+        final long multiplier = NEIClientConfig.showItemQuantityWidget() ? NEIClientConfig.getItemQuantity() : 0;
+
+        if (multiplier != 0) {
+            return multiplier;
+        }
+
+        return StackInfo.isFluidDisplayItem(stack) ? 144 : stack.getMaxStackSize();
+    }
+
     public static void drawRect(double left, double top, double width, double height, Color color) {
         final boolean is2DTexture = GL11.glGetBoolean(GL11.GL_TEXTURE_2D);
         final boolean isBlend = GL11.glGetBoolean(GL11.GL_BLEND);
@@ -568,6 +616,7 @@ public class NEIClientUtils extends NEIServerUtils {
             GuiDraw.fontRenderer.drawString(text, 0, 0, color, shadow);
             GL11.glScaled(1 / smallTextScale, 1 / smallTextScale, 1);
             GL11.glTranslated(-1 * offsetX, -1 * offsetY, 0);
+            GL11.glColor4f(1, 1, 1, 1);
         });
     }
 

src/main/java/codechicken/nei/NEIController.java

@@ -1,15 +1,16 @@
 package codechicken.nei;
 
 import static codechicken.lib.gui.GuiDraw.getMousePosition;
+import static codechicken.nei.NEIClientConfig.canCheatItem;
 
 import java.awt.Point;
-import java.util.LinkedList;
 
 import net.minecraft.client.gui.inventory.GuiContainer;
 import net.minecraft.client.gui.inventory.GuiContainerCreative;
 import net.minecraft.entity.player.InventoryPlayer;
 import net.minecraft.inventory.Slot;
 import net.minecraft.inventory.SlotCrafting;
+import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
 import net.minecraftforge.client.ClientCommandHandler;
 
@@ -26,7 +27,7 @@ import codechicken.nei.commands.CommandUntranslator;
 import codechicken.nei.guihook.GuiContainerManager;
 import codechicken.nei.guihook.IContainerInputHandler;
 import codechicken.nei.guihook.IContainerSlotClickHandler;
-import codechicken.nei.recipe.GuiRecipe;
+import codechicken.nei.util.EmptyContainer;
 import cpw.mods.fml.relauncher.Side;
 import cpw.mods.fml.relauncher.SideOnly;
 
@@ -76,29 +77,38 @@ public class NEIController implements IContainerSlotClickHandler, IContainerInpu
     public static void updateUnlimitedItems(InventoryPlayer inventory) {
         if (!NEIClientConfig.canPerformAction("item") || !NEIClientConfig.hasSMPCounterPart()) return;
 
-        LinkedList<ItemStack> beforeStacks = new LinkedList<>();
-        for (int i = 0; i < inventory.getSizeInventory(); i++)
-            beforeStacks.add(NEIServerUtils.copyStack(inventory.getStackInSlot(i)));
-
-        for (int i = 0; i < inventory.getSizeInventory(); i++) {
+        int size = inventory.getSizeInventory();
+        for (int i = 0; i < size; i++) {
             ItemStack stack = inventory.getStackInSlot(i);
             if (stack == null) continue;
 
-            for (IInfiniteItemHandler handler : ItemInfo.infiniteHandlers)
-                if (handler.canHandleItem(stack) && handler.isItemInfinite(stack))
-                    handler.replenishInfiniteStack(inventory, i);
-        }
+            for (IInfiniteItemHandler handler : ItemInfo.infiniteHandlers) {
+                if (!handler.canHandleItem(stack) || !handler.isItemInfinite(stack)) continue;
 
-        for (int i = 0; i < inventory.getSizeInventory(); i++) {
-            ItemStack newstack = inventory.getStackInSlot(i);
+                long beforeSize = packStackSize(stack.stackSize, stack.getItemDamage());
+                handler.replenishInfiniteStack(inventory, i);
 
-            if (!NEIServerUtils.areStacksIdentical(beforeStacks.get(i), newstack)) {
-                inventory.setInventorySlotContents(i, beforeStacks.get(i)); // restore in case of SMP fail
-                NEIClientUtils.setSlotContents(i, newstack, false); // sends via SMP handler ;)
+                ItemStack newstack = inventory.getStackInSlot(i);
+                if (!sameStack(stack, beforeSize, newstack)) {
+                    NEIClientUtils.setSlotContents(i, newstack, false); // sends via SMP handler ;)
+                    stack.stackSize = (int) (beforeSize >> 32);
+                    stack.setItemDamage((int) beforeSize);
+                    inventory.setInventorySlotContents(i, stack); // restore in case of SMP fail
+                }
             }
         }
     }
 
+    private static long packStackSize(int stackSize, int itemDamage) {
+        return ((long) stackSize << 32) | (itemDamage & 0xFFFFFFFFL);
+    }
+
+    private static boolean sameStack(ItemStack before, long beforeSize, ItemStack stack) {
+        if (stack == null) return before == null;
+        return before != null && Item.getIdFromItem(before.getItem()) == Item.getIdFromItem(stack.getItem())
+                && beforeSize == packStackSize(stack.stackSize, stack.getItemDamage());
+    }
+
     public static void processCreativeCycling(InventoryPlayer inventory) {
         if (NEIClientConfig.invCreativeMode() && NEIClientUtils.controlKey()) {
             if (selectedItem != inventory.currentItem) {
@@ -151,13 +161,15 @@ public class NEIController implements IContainerSlotClickHandler, IContainerInpu
                 && slot != null
                 && slot.getStack() != null
                 && slot.isItemValid(slot.getStack())) {
+            if (!canCheatItem(slot.getStack())) return false;
+
             NEIClientUtils.cheatItem(slot.getStack(), button, 1);
             return true;
         }
 
         if (GuiInfo.hasCustomSlots(gui)) return false;
 
-        if (NEIClientUtils.shiftKey()) {
+        if (NEIClientUtils.shiftKey() && button != 2) { // MMB is used by other mods when an itemstack is picked.
             // fix small mouse movement while clicking causing slotIndex to be -999
             if (slotIndex == -999) {
                 final Point mouse = GuiDraw.getMousePosition();
@@ -249,7 +261,7 @@ public class NEIController implements IContainerSlotClickHandler, IContainerInpu
 
         // slot in GuiRecipe does not contain actual stack
         // and scroll should be handled by GuiRecipe, not here
-        if (gui instanceof GuiRecipe) return false;
+        if (gui.inventorySlots instanceof EmptyContainer) return false;
 
         Point mousePos = getMousePosition();
         Slot mouseover = manager.window.getSlotAtPosition(mousePos.x, mousePos.y);

src/main/java/codechicken/nei/NEIModContainer.java

@@ -43,6 +43,7 @@ public class NEIModContainer extends DummyModContainer {
 
     private static boolean gregTech5Loaded;
     private static boolean gtnhLibLoaded;
+    private static boolean cubicChunksLoaded;
 
     private static ASMDataTable asmDataTable;
 
@@ -69,6 +70,10 @@ public class NEIModContainer extends DummyModContainer {
         return gtnhLibLoaded;
     }
 
+    public static boolean isCCLoaded() {
+        return cubicChunksLoaded;
+    }
+
     @Override
     public Set<ArtifactVersion> getRequirements() {
         Set<ArtifactVersion> deps = new HashSet<>();
@@ -80,6 +85,7 @@ public class NEIModContainer extends DummyModContainer {
     public List<ArtifactVersion> getDependencies() {
         List<ArtifactVersion> deps = new ArrayList<>();
         deps.add(VersionParser.parseVersionReference("CodeChickenCore@[" + codechicken.core.asm.Tags.VERSION + ",)"));
+        deps.add(VersionParser.parseVersionReference("gtnhlib@[0.9.6,)"));
         return deps;
     }
 
@@ -95,6 +101,8 @@ public class NEIModContainer extends DummyModContainer {
     public void preInit(FMLPreInitializationEvent event) {
         gregTech5Loaded = Loader.isModLoaded("gregtech") && !Loader.isModLoaded("gregapi_post");
         gtnhLibLoaded = Loader.isModLoaded("gtnhlib");
+        cubicChunksLoaded = Loader.isModLoaded("cubicchunks");
+        ServerHandler.preInit();
         if (CommonUtils.isClient()) ClientHandler.preInit();
         asmDataTable = event.getAsmData();
     }
@@ -103,6 +111,7 @@ public class NEIModContainer extends DummyModContainer {
     public void init(FMLInitializationEvent event) {
         if (CommonUtils.isClient()) {
             ClientHandler.load();
+            IMCForNEI.IMCSender();
         }
         ServerHandler.load();
     }

src/main/java/codechicken/nei/NEIPotionGuiHandler.java

@@ -1,14 +1,10 @@
 package codechicken.nei;
 
-import java.util.Collection;
-
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.entity.EntityPlayerSP;
 import net.minecraft.client.gui.inventory.GuiContainer;
 import net.minecraft.client.renderer.InventoryEffectRenderer;
-import net.minecraft.potion.PotionEffect;
 
-import codechicken.lib.vec.Rectangle4i;
 import codechicken.nei.api.INEIGuiAdapter;
 
 /**
@@ -18,35 +14,37 @@ public class NEIPotionGuiHandler extends INEIGuiAdapter {
 
     @Override
     public boolean hideItemPanelSlot(GuiContainer guiContainer, int slotX, int slotY, int slotW, int slotH) {
-        if (NEIClientConfig.ignorePotionOverlap()) {
+        if (!(guiContainer instanceof InventoryEffectRenderer)) {
             return false;
         }
 
-        if (guiContainer instanceof InventoryEffectRenderer) {
-            int x = guiContainer.guiLeft - 124;
-            int y = guiContainer.guiTop;
-            Minecraft minecraft = guiContainer.mc;
-            if (minecraft == null) {
-                return false;
-            }
-            EntityPlayerSP player = minecraft.thePlayer;
-            if (player == null) {
-                return false;
-            }
-            Collection<PotionEffect> activePotionEffects = player.getActivePotionEffects();
-            if (activePotionEffects.isEmpty()) {
-                return false;
-            }
-            int height = 33;
-            if (activePotionEffects.size() > 5) {
-                height = 132 / (activePotionEffects.size() - 1);
-            }
-            Rectangle4i slotRect = new Rectangle4i(slotX, slotY, slotW, slotH);
-            for (PotionEffect potioneffect : activePotionEffects) {
-                Rectangle4i box = new Rectangle4i(x, y, 140, 32);
-                if (box.intersects(slotRect)) return true;
-                y += height;
-            }
+        int x = guiContainer.guiLeft - 124;
+        if (slotX + slotW <= x || slotX >= x + 140) {
+            return false;
+        }
+
+        Minecraft minecraft = guiContainer.mc;
+        if (minecraft == null) {
+            return false;
+        }
+        EntityPlayerSP player = minecraft.thePlayer;
+        if (player == null) {
+            return false;
+        }
+        int potionCount = player.getActivePotionEffects().size();
+        if (potionCount == 0 || NEIClientConfig.ignorePotionOverlap()) {
+            return false;
+        }
+        int height = 33;
+        if (potionCount > 5) {
+            height = 132 / (potionCount - 1);
+        }
+        return intersectsPotionEffects(slotY, slotH, guiContainer.guiTop, potionCount, height);
+    }
+
+    static boolean intersectsPotionEffects(int slotY, int slotH, int effectY, int potionCount, int height) {
+        for (int i = 0; i < potionCount; i++, effectY += height) {
+            if (slotY + slotH > effectY && slotY < effectY + 32) return true;
         }
         return false;
     }

src/main/java/codechicken/nei/NEISPH.java

@@ -11,6 +11,7 @@ import net.minecraft.entity.player.EntityPlayerMP;
 import net.minecraft.inventory.InventoryBasic;
 import net.minecraft.inventory.Slot;
 import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.network.play.INetHandlerPlayServer;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.tileentity.TileEntityMobSpawner;
@@ -91,11 +92,20 @@ public class NEISPH implements IServerPacketHandler {
             case C2S.SEND_CHAT_ITEM_LINK:
                 handleSendChatItemLink(sender, packet);
                 break;
+            case C2S.SYNC:
+                handleSync(sender, packet.readInt());
+                break;
         }
     }
 
+    private void handleSync(EntityPlayerMP sender, int id) {
+        sender.sendContainerAndContentsToPlayer(sender.openContainer, sender.openContainer.getInventory());
+        new PacketCustom(channel, S2C.SYNC).writeInt(id).sendToPlayer(sender);
+    }
+
     private void handleSendChatItemLink(EntityPlayerMP sender, PacketCustom packet) {
-        NEIServerUtils.sendChatItemLink(sender, packet.readItemStack());
+        final NBTTagCompound payloadTag = packet.readNBTTagCompound();
+        NEIServerUtils.sendChatItemLink(sender, payloadTag);
     }
 
     private void handleDummySlotSet(EntityPlayerMP sender, PacketCustom packet) {

src/main/java/codechicken/nei/NEIServerConfig.java

@@ -108,6 +108,7 @@ public class NEIServerConfig {
         setDefaultFeature("save-state");
         setDefaultFeature("item");
         setDefaultFeature("delete");
+        setDefaultFeature("autocraft", "ALL");
         setDefaultFeature("notify-item", "CONSOLE, OP");
     }
 

src/main/java/codechicken/nei/NEIServerUtils.java

@@ -10,6 +10,7 @@ import java.util.AbstractList;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Set;
+import java.util.UUID;
 import java.util.zip.ZipException;
 
 import net.minecraft.command.ICommandSender;
@@ -28,12 +29,13 @@ import net.minecraft.nbt.NBTException;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.nbt.NBTTagList;
 import net.minecraft.server.MinecraftServer;
+import net.minecraft.util.ChatComponentText;
 import net.minecraft.util.ChatComponentTranslation;
 import net.minecraft.util.EnumChatFormatting;
 import net.minecraft.util.IChatComponent;
 import net.minecraft.world.World;
-import net.minecraft.world.WorldServer;
 import net.minecraft.world.WorldSettings.GameType;
+import net.minecraftforge.fluids.FluidStack;
 import net.minecraftforge.oredict.OreDictionary;
 
 import org.apache.logging.log4j.Level;
@@ -44,6 +46,8 @@ import codechicken.lib.inventory.InventoryRange;
 import codechicken.lib.inventory.InventoryUtils;
 import codechicken.lib.packet.PacketCustom;
 import codechicken.nei.PacketIDs.S2C;
+import codechicken.nei.item.ItemFluidDisplay;
+import codechicken.nei.recipe.StackInfo;
 import codechicken.nei.util.NBTHelper;
 import cpw.mods.fml.common.FMLLog;
 import cpw.mods.fml.common.registry.GameRegistry;
@@ -73,7 +77,7 @@ public class NEIServerUtils {
     public static void toggleRaining(World world, boolean notify) {
         boolean raining = !world.isRaining();
         if (!raining) // turn off
-            ((WorldServer) world).provider.resetRainAndThunder();
+            world.provider.resetRainAndThunder();
         else world.getWorldInfo().setRaining(!isRaining(world));
 
         if (notify)
@@ -86,16 +90,46 @@ public class NEIServerUtils {
         player.extinguish();
     }
 
-    public static void sendChatItemLink(EntityPlayerMP sender, ItemStack stackover) {
-        ServerUtils.sendChatToAll(
-                new ChatComponentTranslation(
-                        "nei.chat.item_link.text",
-                        sender.getDisplayName(),
-                        stackover.func_151000_E().setChatStyle(
-                                stackover.func_151000_E().getChatStyle().setChatClickEvent(
-                                        new ClickEvent(
-                                                ClickEvent.Action.RUN_COMMAND,
-                                                "/nei_bookmark " + stackover.writeToNBT(new NBTTagCompound()))))));
+    public static void sendChatItemLink(EntityPlayerMP sender, NBTTagCompound payload) {
+        if (payload == null) {
+            sender.addChatMessage(new ChatComponentText("Invalid bookmark payload"));
+            return;
+        }
+
+        final String linkType = payload.getString("linkType");
+        final String payloadId = UUID.randomUUID().toString().substring(0, 8);
+        final PacketCustom packet = new PacketCustom(NEISPH.channel, S2C.CACHE_BOOKMARK_DATA).writeString(payloadId)
+                .writeNBTTagCompound((NBTTagCompound) payload.copy());
+
+        for (EntityPlayer player : ServerUtils.getPlayers()) {
+            if (player instanceof EntityPlayerMP playerMP) {
+                packet.sendToPlayer(playerMP);
+            }
+        }
+
+        try {
+            final IChatComponent clickable;
+
+            if (payload.hasKey("item")) {
+                clickable = StackInfo.loadFromNBT(payload.getCompoundTag("item")).func_151000_E();
+            } else {
+                clickable = new ChatComponentText("[")
+                        .appendSibling(new ChatComponentTranslation("nei.chat.item_link." + linkType + ".text"))
+                        .appendText("]");
+            }
+
+            if (clickable == null) {
+                throw new Exception("Invalid ItemStack NBT");
+            }
+
+            clickable.getChatStyle()
+                    .setChatClickEvent(new ClickEvent(ClickEvent.Action.RUN_COMMAND, "/nei_bookmark " + payloadId));
+            ServerUtils.sendChatToAll(
+                    new ChatComponentTranslation("nei.chat.item_link.text", sender.getDisplayName(), clickable));
+        } catch (Exception e) {
+            sender.addChatMessage(new ChatComponentText(e.toString()));
+        }
+
     }
 
     public static long getTime(World world) {
@@ -183,7 +217,7 @@ public class NEIServerUtils {
     public static boolean areStacksSameTypeWithNBT(ItemStack stack1, ItemStack stack2) {
         return stack1 != null && stack2 != null
                 && stack1.getItem() == stack2.getItem()
-                && (!stack2.getHasSubtypes() || stack2.getItemDamage() == stack1.getItemDamage())
+                && (stack2.isItemStackDamageable() || stack2.getItemDamage() == stack1.getItemDamage())
                 && NBTHelper.matchTag(stack1.getTagCompound(), stack2.getTagCompound());
     }
 
@@ -229,9 +263,6 @@ public class NEIServerUtils {
     /**
      * GT Items don't have any NBT set for the recipe, so if either of the stacks has a NULL nbt, and the other doesn't,
      * pretend they stack
-     *
-     * @param ItemStack stack
-     * @return
      */
     public static boolean isItemTool(ItemStack stack) {
         return GTMetaBaseItemHolder.gtMetaBaseItem != null
@@ -413,17 +444,53 @@ public class NEIServerUtils {
         throw new RuntimeException(msg);
     }
 
-    @SuppressWarnings("unchecked")
     public static ItemStack[] extractRecipeItems(Object obj) {
-        if (obj instanceof ItemStack) return new ItemStack[] { (ItemStack) obj };
-        if (obj instanceof ItemStack[]) return (ItemStack[]) obj;
-        if (obj instanceof List) return ((List<ItemStack>) obj).toArray(new ItemStack[0]);
 
-        throw new ClassCastException(obj + " not an ItemStack, ItemStack[] or List<ItemStack?");
+        if (obj instanceof ItemStack item) {
+            return new ItemStack[] { item };
+        }
+
+        if (obj instanceof ItemStack[]arr) {
+            return arr;
+        }
+
+        if (obj instanceof FluidStack fluid) {
+            return new ItemStack[] { ItemFluidDisplay.createStack(fluid) };
+        }
+
+        if (obj instanceof FluidStack[]arr) {
+            final ItemStack[] items = new ItemStack[arr.length];
+
+            for (int i = 0; i < items.length; i++) {
+                items[i] = ItemFluidDisplay.createStack(arr[i]);
+            }
+
+            return items;
+        }
+
+        if (obj instanceof List list) {
+            final ItemStack[] items = new ItemStack[list.size()];
+
+            for (int i = 0; i < items.length; i++) {
+                items[i] = extractRecipeItem(list.get(i));
+            }
+
+            return items;
+        }
+
+        throw new ClassCastException(
+                obj + " not an ItemStack, ItemStack[], FluidStack, FluidStack[] or a List of them");
+    }
+
+    private static ItemStack extractRecipeItem(Object obj) {
+        if (obj == null) return null;
+        if (obj instanceof ItemStack item) return item;
+        if (obj instanceof FluidStack fluid) return ItemFluidDisplay.createStack(fluid);
+        throw new ClassCastException(obj + " not an ItemStack or FluidStack");
     }
 
     public static List<Integer> getRange(final int start, final int end) {
-        return new AbstractList<Integer>() {
+        return new AbstractList<>() {
 
             @Override
             public Integer get(int index) {

src/main/java/codechicken/nei/PacketIDs.java

@@ -24,6 +24,7 @@ public final class PacketIDs {
         public static final int REQUEST_POTION_GUI = 24;
         public static final int SET_DUMMY_SLOT = 25;
         public static final int SEND_CHAT_ITEM_LINK = 26;
+        public static final int SYNC = 27;
     }
 
     public static final class S2C {
@@ -37,5 +38,7 @@ public final class PacketIDs {
         public static final int OPEN_ENCHANTMENT_GUI = 21;
         public static final int SET_CREATIVE_PLUS_MODE = 23;
         public static final int OPEN_POTION_GUI = 24;
+        public static final int CACHE_BOOKMARK_DATA = 25;
+        public static final int SYNC = 26;
     }
 }

src/main/java/codechicken/nei/PanelWidget.java

@@ -82,14 +82,14 @@ public abstract class PanelWidget<T extends ItemsGrid<? extends ItemsGridSlot, ?
 
     public abstract String getLabelText();
 
-    public abstract Rectangle4i calculateBounds();
+    public abstract Rectangle4i calculateBounds(GuiContainer gui);
 
     protected static int snapDownToMultiple(int value, int multiple) {
         return (value / multiple) * multiple;
     }
 
     public void resize(GuiContainer gui) {
-        final Rectangle4i bounds = calculateBounds();
+        final Rectangle4i bounds = calculateBounds(gui);
 
         x = bounds.x;
         y = bounds.y;
@@ -305,16 +305,16 @@ public abstract class PanelWidget<T extends ItemsGrid<? extends ItemsGridSlot, ?
     }
 
     @Override
-    public boolean handleKeyPress(int keyID, char keyChar) {
+    public boolean onHotkeyPressed() {
         final Point mouse = GuiDraw.getMousePosition();
         if (!contains(mouse.x, mouse.y)) return false;
 
-        if (NEIClientConfig.isKeyHashDown("gui.next")) {
+        if (KeyManager.isKeyDown("gui.next")) {
             this.grid.shiftPage(1);
             return true;
         }
 
-        if (NEIClientConfig.isKeyHashDown("gui.prev")) {
+        if (KeyManager.isKeyDown("gui.prev")) {
             this.grid.shiftPage(-1);
             return true;
         }

src/main/java/codechicken/nei/PluginLoader.java

@@ -0,0 +1,38 @@
+package codechicken.nei;
+
+import java.util.Collection;
+import java.util.stream.Stream;
+
+import org.apache.logging.log4j.Logger;
+
+import codechicken.nei.api.IConfigureNEI;
+
+final class PluginLoader {
+
+    private PluginLoader() {}
+
+    static void load(Stream<Class<?>> plugins, Collection<IConfigureNEI> loadedPlugins, Logger logger) {
+        final ClassLoader classLoader = IConfigureNEI.class.getClassLoader();
+
+        plugins.forEach(clazz -> {
+            final Thread thread = Thread.currentThread();
+            final ClassLoader previousClassLoader = thread.getContextClassLoader();
+
+            // Common-pool workers may use the system loader, which cannot see FML-only classes. Keep FML's loader
+            // through error logging too: old Log4j can otherwise throw while resolving a plugin's stack frames.
+            try {
+                thread.setContextClassLoader(classLoader);
+                try {
+                    IConfigureNEI config = (IConfigureNEI) clazz.getConstructor().newInstance();
+                    config.loadConfig();
+                    loadedPlugins.add(config);
+                    logger.debug("Loaded {}", clazz.getName());
+                } catch (Throwable e) {
+                    logger.error("Failed to Load {}", clazz.getName(), e);
+                }
+            } finally {
+                thread.setContextClassLoader(previousClassLoader);
+            }
+        });
+    }
+}

src/main/java/codechicken/nei/PopupInputHandler.java

@@ -23,13 +23,18 @@ public class PopupInputHandler implements IContainerInputHandler {
 
     @Override
     public boolean lastKeyTyped(GuiContainer gui, char keyChar, int keyID) {
+        return false;
+    }
 
-        if (NEIClientConfig.isKeyHashDown("gui.enchant") && canPerformAction("enchant")) {
+    @Override
+    public boolean onHotkeyPressed(GuiContainer gui) {
+
+        if (KeyManager.isHashDown("gui.enchant") && canPerformAction("enchant")) {
             NEICPH.sendOpenEnchantmentWindow();
             return true;
         }
 
-        if (NEIClientConfig.isKeyHashDown("gui.potion") && canPerformAction("potion")) {
+        if (KeyManager.isHashDown("gui.potion") && canPerformAction("potion")) {
             NEICPH.sendOpenPotionWindow();
             return true;
         }

src/main/java/codechicken/nei/PositionedStack.java

@@ -4,30 +4,52 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Comparator;
 import java.util.List;
+import java.util.function.Function;
 import java.util.stream.Collectors;
 
 import net.minecraft.init.Blocks;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
+import net.minecraft.util.EnumChatFormatting;
+import net.minecraftforge.fluids.FluidStack;
 import net.minecraftforge.oredict.OreDictionary;
 
+import org.lwjgl.opengl.GL11;
+
 import codechicken.nei.api.ItemFilter;
 import codechicken.nei.api.ItemInfo;
+import codechicken.nei.drawable.DrawableBuilder;
+import codechicken.nei.drawable.DrawableResource;
+import codechicken.nei.guihook.GuiContainerManager;
+import codechicken.nei.item.FluidDrawer;
+import codechicken.nei.item.FluidDrawer.FillDirection;
+import codechicken.nei.recipe.Badge;
 import codechicken.nei.recipe.GuiRecipe;
 import codechicken.nei.recipe.StackInfo;
 
 /**
  * Simply an {@link ItemStack} with position. Mainly used in the recipe handlers.
  */
-public class PositionedStack {
+public class PositionedStack implements Cloneable {
+
+    /** Maximum chance value representing 100% probability (1 unit = 0.01%). */
+    public static final int CHANCE_FULL = 10_000;
 
     public int relx;
     public int rely;
+    public int width = 16;
+    public int height = 16;
     public ItemStack[] items;
     // compatibility dummy
     public ItemStack item;
 
-    private boolean permutated = false;
+    protected int chance = CHANCE_FULL;
+    protected boolean permutated = false;
+
+    protected String acceptsLabel;
+
+    protected Function<ItemStack, List<String>> tooltip;
+    protected List<Badge> badges;
 
     public PositionedStack(Object object, int x, int y, boolean genPerms) {
         items = NEIServerUtils.extractRecipeItems(object);
@@ -82,14 +104,58 @@ public class PositionedStack {
         for (ItemStack item : items) if (item.stackSize > i) item.stackSize = i;
     }
 
+    public void setAcceptsLabel(String acceptsLabel) {
+        this.acceptsLabel = acceptsLabel;
+    }
+
+    public String getAcceptsLabel() {
+        return this.acceptsLabel;
+    }
+
+    public void setBadges(List<Badge> badges) {
+        this.badges = badges;
+    }
+
+    public List<Badge> getBadges() {
+        return this.badges;
+    }
+
+    public void setTooltip(List<String> tooltip) {
+        this.tooltip = tooltip == null ? null : item -> tooltip;
+    }
+
+    public void setTooltipProvider(Function<ItemStack, List<String>> provider) {
+        this.tooltip = provider;
+    }
+
+    public List<String> getTooltip() {
+        return this.tooltip == null ? null : this.tooltip.apply(this.item);
+    }
+
+    public int getChance() {
+        return this.chance;
+    }
+
+    public void setChance(int chance) {
+        this.chance = chance;
+    }
+
     public PositionedStack copy() {
-        PositionedStack pStack = new PositionedStack(
-                Arrays.stream(this.items).map(ItemStack::copy).toArray(ItemStack[]::new),
-                relx,
-                rely,
-                false);
-        pStack.permutated = this.permutated;
-        return pStack;
+        try {
+            PositionedStack pStack = (PositionedStack) super.clone();
+            pStack.items = Arrays.stream(this.items).map(ItemStack::copy).toArray(ItemStack[]::new);
+            pStack.item = this.item == null ? null : this.item.copy();
+            pStack.badges = this.badges == null ? null : new ArrayList<>(this.badges);
+            return pStack;
+        } catch (CloneNotSupportedException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public void draw(int mousex, int mousey) {
+        final int x = this.relx + (this.width - 16) / 2;
+        final int y = this.rely + (this.height - 16) / 2;
+        GuiContainerManager.drawItem(x, y, this.item);
     }
 
     public List<ItemStack> getFilteredPermutations() {
@@ -97,7 +163,7 @@ public class PositionedStack {
     }
 
     public List<ItemStack> getFilteredPermutations(ItemFilter additionalFilter) {
-        List<ItemStack> items = Arrays.asList(this.items);
+        List<ItemStack> items = new ArrayList<>(Arrays.asList(this.items));
 
         items = filteringPermutations(items, item -> !ItemInfo.isHidden(item));
         items = filteringPermutations(items, PresetsList.getItemFilter());
@@ -146,7 +212,9 @@ public class PositionedStack {
     }
 
     public boolean contains(int mx, int my) {
-        return mx >= this.relx - 1 && mx < this.relx + 17 && my >= this.rely - 1 && my < this.rely + 17;
+        return mx >= this.relx - 1 && mx < this.relx + this.width + 1
+                && my >= this.rely - 1
+                && my < this.rely + this.height + 1;
     }
 
     public boolean contains(ItemStack ingredient) {
@@ -174,4 +242,143 @@ public class PositionedStack {
     public String toString() {
         return "PositionedStack(output='" + item.toString() + "')";
     }
+
+    public static class Placeholder extends PositionedStack {
+
+        public Placeholder(Object object, int x, int y, boolean genPerms) {
+            super(object, x, y, genPerms);
+        }
+
+        public Placeholder(Object object, int x, int y) {
+            this(object, x, y, true);
+        }
+
+        @Override
+        public void draw(int mousex, int mousey) {}
+    }
+
+    public static class Tank extends PositionedStack {
+
+        /** The tank size the fill level is measured against, in mB. 0 means "always render full". */
+        protected int capacity = 0;
+        protected boolean flowingTexture = false;
+        protected FillDirection fillDirection = FillDirection.AUTO;
+        protected DrawableResource overlay;
+
+        private ItemStack cachedFluidItem;
+        private FluidStack cachedFluidStack;
+
+        public Tank(Object object, int x, int y, boolean genPerms) {
+            super(object, x, y, genPerms);
+        }
+
+        public Tank(Object object, int x, int y) {
+            this(object, x, y, true);
+        }
+
+        public Tank(Object object, int x, int y, int width, int height, int capacity) {
+            super(object, x, y, false);
+            this.width = width;
+            this.height = height;
+            setCapacity(capacity);
+        }
+
+        public int getCapacity() {
+            return this.capacity;
+        }
+
+        public Tank setCapacity(int capacity) {
+            this.capacity = Math.max(capacity, 0);
+            return this;
+        }
+
+        public boolean hasFlowingTexture() {
+            return this.flowingTexture;
+        }
+
+        public Tank setFlowingTexture(boolean flowingTexture) {
+            this.flowingTexture = flowingTexture;
+            return this;
+        }
+
+        public FillDirection getFillDirection() {
+            return this.fillDirection;
+        }
+
+        public Tank setFillDirection(FillDirection fillDirection) {
+            this.fillDirection = fillDirection == null ? FillDirection.AUTO : fillDirection;
+            return this;
+        }
+
+        public DrawableResource getOverlay() {
+            return this.overlay;
+        }
+
+        public Tank setOverlay(String resourceLocation, int u, int v, int width, int height) {
+            return setOverlay(new DrawableBuilder(resourceLocation, u, v, width, height).build());
+        }
+
+        public Tank setOverlay(DrawableResource overlay) {
+            this.overlay = overlay;
+            return this;
+        }
+
+        protected FluidStack getFluidStack() {
+
+            if (this.item != this.cachedFluidItem) {
+                this.cachedFluidItem = this.item;
+                this.cachedFluidStack = StackInfo.isFluidDisplayItem(this.item) ? StackInfo.getFluid(this.item) : null;
+            }
+
+            return this.cachedFluidStack;
+        }
+
+        @Override
+        public List<String> getTooltip() {
+            final List<String> tooltip = new ArrayList<>();
+            final List<String> customTooltip = super.getTooltip();
+            final FluidStack fluidStack = getFluidStack();
+
+            if (fluidStack != null) {
+                tooltip.add(
+                        EnumChatFormatting.GRAY + NEIClientUtils
+                                .translate("recipe.fluid.tank.amount", NEIClientUtils.formatFluid(fluidStack.amount)));
+            }
+
+            if (customTooltip != null) {
+                tooltip.addAll(customTooltip);
+            }
+
+            return tooltip;
+        }
+
+        @Override
+        public void draw(int mousex, int mousey) {
+            final FluidStack fluidStack = getFluidStack();
+
+            if (fluidStack == null) {
+                super.draw(mousex, mousey);
+                return;
+            }
+
+            FluidDrawer.drawTank(
+                    this.relx,
+                    this.rely,
+                    this.width,
+                    this.height,
+                    this.capacity,
+                    fluidStack,
+                    this.flowingTexture,
+                    this.fillDirection);
+
+            if (this.overlay != null) {
+                GL11.glEnable(GL11.GL_BLEND);
+                GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
+                GL11.glDisable(GL11.GL_LIGHTING);
+                this.overlay.draw(this.relx, this.rely);
+                GL11.glEnable(GL11.GL_LIGHTING);
+                GL11.glDisable(GL11.GL_BLEND);
+            }
+        }
+    }
 }

src/main/java/codechicken/nei/PresetsList.java

@@ -163,9 +163,7 @@ public class PresetsList {
     public static void load() {
         final File presetsFile = new File(CommonUtils.getMinecraftDir(), "saves/NEI/global/presets.ini");
 
-        if (presetsFile == null || !presetsFile.exists()) {
-            return;
-        }
+        if (!presetsFile.exists()) return;
 
         List<String> itemStrings;
         try (FileInputStream reader = new FileInputStream(presetsFile)) {
@@ -251,7 +249,7 @@ public class PresetsList {
         updateSubsets();
         CollapsibleItems.saveStates();
         CollapsibleItems.load();
-        LayoutManager.markItemsDirty();
+        ItemList.refreshItems.restart();
     }
 
     private static void updateSubsets() {

src/main/java/codechicken/nei/RecipeSearchField.java

@@ -48,15 +48,19 @@ public abstract class RecipeSearchField extends TextField implements ItemFilterP
     }
 
     @Override
-    public void lastKeyTyped(int keyID, char keyChar) {
+    public boolean onHotkeyPressed() {
 
-        if (focused() && NEIClientConfig.isKeyHashDown("gui.getprevioussearch")) {
+        if (focused() && KeyManager.isKeyDown("gui.getprevioussearch")) {
             handleNavigateHistory(TextHistory.Direction.PREVIOUS);
+            return true;
         }
 
-        if (focused() && NEIClientConfig.isKeyHashDown("gui.getnextsearch")) {
+        if (focused() && KeyManager.isKeyDown("gui.getnextsearch")) {
             handleNavigateHistory(TextHistory.Direction.NEXT);
+            return true;
         }
+
+        return false;
     }
 
     @Override

src/main/java/codechicken/nei/SearchField.java

@@ -15,7 +15,6 @@ import net.minecraftforge.fluids.FluidStack;
 import codechicken.lib.gui.GuiDraw;
 import codechicken.nei.ItemList.NothingItemFilter;
 import codechicken.nei.SearchTokenParser.ISearchParserProvider;
-import codechicken.nei.SearchTokenParser.SearchMode;
 import codechicken.nei.api.IRecipeFilter;
 import codechicken.nei.api.IRecipeFilter.IRecipeFilterProvider;
 import codechicken.nei.api.ItemFilter;
@@ -85,8 +84,8 @@ public class SearchField extends TextField implements ItemFilterProvider {
         }
 
         @Override
-        public SearchMode getSearchMode() {
-            return SearchMode.fromInt(NEIClientConfig.getIntSetting("inventory.search." + this.name + "SearchMode"));
+        public String getName() {
+            return this.name;
         }
     }
 
@@ -228,18 +227,24 @@ public class SearchField extends TextField implements ItemFilterProvider {
     }
 
     @Override
-    public void lastKeyTyped(int keyID, char keyChar) {
+    public boolean onHotkeyPressed() {
 
-        if (isVisible() && NEIClientConfig.isKeyHashDown("gui.search")) {
+        if (isVisible() && KeyManager.isHashDown("gui.search")) {
             setFocus(true);
-        }
-        if (focused() && NEIClientConfig.isKeyHashDown("gui.getprevioussearch")) {
-            handleNavigateHistory(TextHistory.Direction.PREVIOUS);
+            return true;
         }
 
-        if (focused() && NEIClientConfig.isKeyHashDown("gui.getnextsearch")) {
-            handleNavigateHistory(TextHistory.Direction.NEXT);
+        if (focused() && KeyManager.isKeyDown("gui.getprevioussearch")) {
+            handleNavigateHistory(TextHistory.Direction.PREVIOUS);
+            return true;
         }
+
+        if (focused() && KeyManager.isKeyDown("gui.getnextsearch")) {
+            handleNavigateHistory(TextHistory.Direction.NEXT);
+            return true;
+        }
+
+        return false;
     }
 
     @Override

src/main/java/codechicken/nei/SearchTokenParser.java

@@ -59,7 +59,13 @@ public class SearchTokenParser {
 
         public EnumChatFormatting getHighlightedColor();
 
-        public SearchMode getSearchMode();
+        default SearchMode getSearchMode() {
+            return SearchMode.fromInt(NEIClientConfig.getIntSetting("inventory.search." + getName() + "SearchMode"));
+        }
+
+        default String getName() {
+            return String.valueOf(getPrefix());
+        }
     }
 
     private static class ProvidersCache {
@@ -111,7 +117,7 @@ public class SearchTokenParser {
         clearCache();
     }
 
-    public void clearCache() {
+    public synchronized void clearCache() {
         this.providersCache.clear();
         this.filtersCache.clear();
         this.recipesCache.clear();
@@ -179,7 +185,7 @@ public class SearchTokenParser {
     public synchronized ItemFilter getFilter(String rawText, boolean skipRecipeTokens) {
         final String filterText = EnumChatFormatting.getTextWithoutFormattingCodes(rawText).toLowerCase();
 
-        if (filterText == null || filterText.isEmpty()) {
+        if (filterText.isEmpty()) {
             return new EverythingItemFilter();
         }
 
@@ -253,7 +259,7 @@ public class SearchTokenParser {
     public synchronized IRecipeFilter getRecipeFilter(String filterText) {
         filterText = EnumChatFormatting.getTextWithoutFormattingCodes(filterText).toLowerCase();
 
-        if (filterText == null || filterText.isEmpty()) {
+        if (filterText.isEmpty()) {
             return new RecipeFilter(FilterContext.ANY, true, new EverythingItemFilter());
         }
 
@@ -439,7 +445,7 @@ public class SearchTokenParser {
             final char ch = input.charAt(index);
 
             if (!insideQuotes && delimiters.indexOf(ch) >= 0
-                    && (!space || index == 0 || input.charAt(index - 1) == ' ')) {
+                    && (!space || index == 0 || input.charAt(index - 1) == ' ' || lastEnd == index)) {
 
                 if (lastEnd == index) {
                     token += String.valueOf(ch);

src/main/java/codechicken/nei/ServerHandler.java

@@ -10,6 +10,7 @@ import net.minecraftforge.event.world.WorldEvent;
 
 import codechicken.core.CommonUtils;
 import codechicken.lib.packet.PacketCustom;
+import codechicken.nei.item.ItemFluidDisplay;
 import cpw.mods.fml.common.FMLCommonHandler;
 import cpw.mods.fml.common.eventhandler.SubscribeEvent;
 import cpw.mods.fml.common.gameevent.PlayerEvent.PlayerChangedDimensionEvent;
@@ -18,6 +19,7 @@ import cpw.mods.fml.common.gameevent.PlayerEvent.PlayerLoggedOutEvent;
 import cpw.mods.fml.common.gameevent.PlayerEvent.PlayerRespawnEvent;
 import cpw.mods.fml.common.gameevent.TickEvent;
 import cpw.mods.fml.common.gameevent.TickEvent.Phase;
+import cpw.mods.fml.common.registry.GameRegistry;
 
 public class ServerHandler {
 
@@ -31,6 +33,14 @@ public class ServerHandler {
         NEIActions.init();
     }
 
+    public static void preInit() {
+        registerFluidDisplayItem();
+    }
+
+    private static void registerFluidDisplayItem() {
+        GameRegistry.registerItem(new ItemFluidDisplay(), "neiFluidDisplay");
+    }
+
     @SubscribeEvent
     public void tickEvent(TickEvent.WorldTickEvent event) {
         if (event.phase == Phase.START && !event.world.isRemote
@@ -46,8 +56,7 @@ public class ServerHandler {
 
     @SubscribeEvent
     public void tickEvent(TickEvent.PlayerTickEvent event) {
-        if (event.phase == Phase.START && event.player instanceof EntityPlayerMP) {
-            EntityPlayerMP player = (EntityPlayerMP) event.player;
+        if (event.phase == Phase.START && event.player instanceof EntityPlayerMP player) {
             PlayerSave save = NEIServerConfig.forPlayer(player.getCommandSenderName());
             if (save == null) return;
             updateMagneticPlayer(player, save);

src/main/java/codechicken/nei/ServerSync.java

@@ -0,0 +1,36 @@
+package codechicken.nei;
+
+import codechicken.lib.packet.PacketCustom;
+import codechicken.nei.PacketIDs.C2S;
+
+/**
+ * Waits until the server has processed everything the client sent before. The server handles slot clicks and NEI
+ * packets in the order they came and answers after it has sent the slot updates, so once the answer is here the client
+ * container holds what the server computed.
+ */
+public final class ServerSync {
+
+    private static int lastId;
+    private static volatile int awaiting;
+
+    private ServerSync() {}
+
+    public static void request() {
+
+        if (!NEIClientConfig.hasSMPCounterPart()) {
+            awaiting = 0;
+            return;
+        }
+
+        awaiting = ++lastId;
+        new PacketCustom(NEICPH.channel, C2S.SYNC).writeInt(awaiting).sendToServer();
+    }
+
+    public static boolean pending() {
+        return awaiting != 0;
+    }
+
+    static void onReply(int id) {
+        if (id == awaiting) awaiting = 0;
+    }
+}

src/main/java/codechicken/nei/SubsetWidget.java

@@ -6,7 +6,6 @@ import java.util.ArrayList;
 import java.util.Comparator;
 import java.util.HashMap;
 import java.util.HashSet;
-import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
@@ -19,6 +18,7 @@ import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.nbt.NBTTagList;
+import net.minecraft.nbt.NBTTagString;
 import net.minecraft.util.EnumChatFormatting;
 
 import org.lwjgl.opengl.GL11;
@@ -160,7 +160,7 @@ public class SubsetWidget extends Button implements ItemFilterProvider {
         // 1 - partitial hidden
         // 2 - enabled
         public int state = 2;
-        public int calculatedWidth;
+        public volatile int calculatedWidth = -1;
         public final List<ItemStack> items;
         public final List<SubsetTag> children = new ArrayList<>();
         protected final SubsetSlot slot = new SubsetSlot();
@@ -206,7 +206,7 @@ public class SubsetWidget extends Button implements ItemFilterProvider {
             this.state = 2;
             this.items.clear();
             this.children.clear();
-            this.calculatedWidth = 0;
+            this.calculatedWidth = -1;
         }
 
         public void updateVisiblity(int mx, int my) {
@@ -261,6 +261,10 @@ public class SubsetWidget extends Button implements ItemFilterProvider {
         }
 
         public void resize(Rectangle4i screen, Rectangle4i parent, boolean dropRight) {
+            if (calculatedWidth < 0) {
+                calculatedWidth = this.children.stream().mapToInt(SubsetTag::nameWidth).max().orElse(0);
+            }
+
             int height = Math.min(slot.contentHeight(), screen.h);
             int width = Math.max(calculatedWidth + 2, this.items.isEmpty() ? 0 : 16 + MARGIN * 2);
             int scrollbarWidth = slot.scrollbarDim().width;
@@ -399,8 +403,8 @@ public class SubsetWidget extends Button implements ItemFilterProvider {
         }
 
         @Override
-        public SearchMode getSearchMode() {
-            return SearchMode.fromInt(NEIClientConfig.getIntSetting("inventory.search.subsetsSearchMode"));
+        public String getName() {
+            return "subsets";
         }
 
         private boolean matches(String name, String searchText, Pattern pattern) {
@@ -413,9 +417,10 @@ public class SubsetWidget extends Button implements ItemFilterProvider {
     }
 
     /**
-     * All operations on this variable should be synchronised.
+     * Canonical {@link StackInfo#getItemStackGUID(ItemStack)} of every hidden item, stored by GUID so the state
+     * survives world reloads. All operations should be synchronised.
      */
-    private static final ItemStackSet hiddenItems = new ItemStackSet();
+    private static final Set<String> hiddenItems = new HashSet<>();
 
     private static final Map<String, SubsetTag> tags = new HashMap<>();
     private static final SubsetTag root = new SubsetTag("");
@@ -456,11 +461,16 @@ public class SubsetWidget extends Button implements ItemFilterProvider {
     }
 
     public static boolean isHidden(ItemStack item) {
+        final String guid = StackInfo.getItemStackGUID(item);
         synchronized (hiddenLock) {
-            return hiddenItems.contains(item);
+            return hiddenItems.contains(guid);
         }
     }
 
+    private static List<String> toGUIDs(List<ItemStack> items) {
+        return items.stream().map(StackInfo::getItemStackGUID).collect(Collectors.toList());
+    }
+
     private static List<ItemStack> getItems(SubsetTag tag, List<ItemStack> items) {
         items.addAll(tag.items);
 
@@ -472,19 +482,22 @@ public class SubsetWidget extends Button implements ItemFilterProvider {
     }
 
     public static void showOnly(SubsetTag tag) {
+        final List<String> allItems = toGUIDs(getItems(root, new ArrayList<>()));
+        final List<String> tagItems = toGUIDs(getItems(tag, new ArrayList<>()));
+
         synchronized (hiddenLock) {
             hiddenItems.clear();
-            hiddenItems.addAll(getItems(root, new ArrayList<>()));
-            hiddenItems.removeAll(getItems(tag, new ArrayList<>()));
+            hiddenItems.addAll(allItems);
+            hiddenItems.removeAll(tagItems);
         }
 
         calculateVisibility();
     }
 
     public static void setHidden(SubsetTag tag, boolean hidden) {
-        synchronized (hiddenLock) {
-            final List<ItemStack> tagItems = getItems(tag, new ArrayList<>());
+        final List<String> tagItems = toGUIDs(getItems(tag, new ArrayList<>()));
 
+        synchronized (hiddenLock) {
             if (hidden) {
                 hiddenItems.addAll(tagItems);
             } else {
@@ -496,11 +509,13 @@ public class SubsetWidget extends Button implements ItemFilterProvider {
     }
 
     public static void setHidden(ItemStack item, boolean hidden) {
+        final String guid = StackInfo.getItemStackGUID(item);
+
         synchronized (hiddenLock) {
             if (hidden) {
-                hiddenItems.add(item);
+                hiddenItems.add(guid);
             } else {
-                hiddenItems.remove(item);
+                hiddenItems.remove(guid);
             }
         }
         calculateVisibility();
@@ -582,13 +597,23 @@ public class SubsetWidget extends Button implements ItemFilterProvider {
     }
 
     public static void loadHidden() {
-        final List<ItemStack> itemList = new LinkedList<>();
+        final Set<String> guids = new HashSet<>();
 
         try {
+            final NBTTagList guidList = NEIClientConfig.world.nbt.getTagList("hiddenItems", 8);
+
+            for (int i = 0; i < guidList.tagCount(); i++) {
+                guids.add(guidList.getStringTagAt(i));
+            }
+
             final NBTTagList list = NEIClientConfig.world.nbt.getTagList("hiddenItems", 10);
 
             for (int i = 0; i < list.tagCount(); i++) {
-                itemList.add(ItemStack.loadItemStackFromNBT(list.getCompoundTagAt(i)));
+                final ItemStack stack = ItemStack.loadItemStackFromNBT(list.getCompoundTagAt(i));
+
+                if (stack != null) {
+                    guids.add(StackInfo.getItemStackGUID(stack));
+                }
             }
         } catch (Exception e) {
             NEIClientConfig.logger.error("Error loading hiddenItems", e);
@@ -597,7 +622,7 @@ public class SubsetWidget extends Button implements ItemFilterProvider {
 
         synchronized (hiddenLock) {
             hiddenItems.clear();
-            hiddenItems.addAll(itemList);
+            hiddenItems.addAll(guids);
         }
     }
 
@@ -606,8 +631,8 @@ public class SubsetWidget extends Button implements ItemFilterProvider {
 
         final NBTTagList list = new NBTTagList();
         synchronized (hiddenLock) {
-            for (ItemStack stack : hiddenItems.values()) {
-                list.appendTag(stack.writeToNBT(new NBTTagCompound()));
+            for (String guid : hiddenItems) {
+                list.appendTag(new NBTTagString(guid));
             }
         }
 
@@ -665,12 +690,12 @@ public class SubsetWidget extends Button implements ItemFilterProvider {
 
                 for (SubsetTag tag : list) {
                     tag.children.sort(Comparator.comparing(SubsetTag::displayName));
-                    tag.calculatedWidth = tag.children.stream().mapToInt(SubsetTag::nameWidth).max().orElse(0);
+                    tag.calculatedWidth = -1;
                 }
 
                 root.children.removeIf(child -> child.children.isEmpty() && child.items.isEmpty());
                 root.children.sort(Comparator.comparing(SubsetTag::displayName));
-                root.calculatedWidth = root.children.stream().mapToInt(SubsetTag::nameWidth).max().orElse(0);
+                root.calculatedWidth = -1;
 
                 calculateVisibility(root);
             } catch (Throwable e) {
@@ -689,20 +714,17 @@ public class SubsetWidget extends Button implements ItemFilterProvider {
     }
 
     @Override
-    public String getRenderLabel() {
+    public int getRenderLabelColor() {
+        return NEIClientConfig.subsetWidgetOnTop() ? 0 : ColorUtils.subsetWidget.getColor();
+    }
 
+    @Override
+    public String getRenderLabel() {
         if (NEIClientConfig.subsetWidgetOnTop()) {
             return NEIClientUtils.translate("inventory.item_subsets");
         } else {
-            final String translated = NEIClientUtils.translate("gui.button.label.subset");
-            if (!translated.startsWith("nei.")) { // Optional localization string for resource packs
-                return translated;
-            }
-
-            return EnumChatFormatting.DARK_PURPLE + String.valueOf(SearchField.searchParser.getRedefinedPrefix(PREFIX))
-                    + EnumChatFormatting.RESET;
+            return String.valueOf(SearchField.searchParser.getRedefinedPrefix(PREFIX));
         }
-
     }
 
     @Override

src/main/java/codechicken/nei/Widget.java

@@ -29,6 +29,10 @@ public abstract class Widget {
 
     public void lastKeyTyped(int keyID, char keyChar) {}
 
+    public boolean onHotkeyPressed() {
+        return false;
+    }
+
     public boolean handleClickExt(int mx, int my, int button) {
         return false;
     }

src/main/java/codechicken/nei/WidgetContainer.java

@@ -162,6 +162,19 @@ public class WidgetContainer extends Widget {
 
     }
 
+    @Override
+    public boolean onHotkeyPressed() {
+
+        for (int index = this.widgets.size() - 1; index >= 0; index--) {
+            final Widget widget = this.widgets.get(index);
+            if (widget.onHotkeyPressed()) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
     @Override
     public boolean isFocused() {
         return this.isFocused;

src/main/java/codechicken/nei/WorldOverlayRenderer.java

@@ -1,5 +1,11 @@
 package codechicken.nei;
 
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.util.concurrent.Callable;
+
+import net.minecraft.block.Block;
+import net.minecraft.block.BlockSnow;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.renderer.Tessellator;
 import net.minecraft.entity.Entity;
@@ -15,6 +21,8 @@ import net.minecraft.world.chunk.Chunk;
 
 import org.lwjgl.opengl.GL11;
 
+import com.cardinalstar.cubicchunks.world.api.IMinMaxHeight;
+
 import codechicken.lib.math.MathHelper;
 import codechicken.nei.KeyManager.IKeyStateTracker;
 import cpw.mods.fml.relauncher.ReflectionHelper;
@@ -26,24 +34,23 @@ public class WorldOverlayRenderer implements IKeyStateTracker {
     public static int mobOverlay = 0;
     private static byte[] mobSpawnCache;
     private static long mobOverlayUpdateTime;
-    private static String oregenPatternName;
 
     public static void reset() {
         mobOverlay = 0;
         chunkOverlay = 0;
-        oregenPatternName = null;
     }
 
     @Override
     public void tickKeyStates() {
         if (Minecraft.getMinecraft().currentScreen != null) return;
 
-        if (KeyManager.keyStates.get("world.moboverlay").down) {
+        if (KeyManager.isPressed("world.moboverlay")) {
             mobOverlay = (mobOverlay + 1) % 2;
             NEIClientUtils
                     .printChatMessage(new ChatComponentText(NEIClientUtils.translate("chat.moboverlay." + mobOverlay)));
         }
-        if (KeyManager.keyStates.get("world.chunkoverlay").down) {
+
+        if (KeyManager.isPressed("world.chunkoverlay")) {
             chunkOverlay = (chunkOverlay + 1) % (NEIModContainer.isGT5Loaded() ? 4 : 3);
             // 0-2 (or 3 with gt)
             NEIClientUtils.printChatMessage(
@@ -53,6 +60,7 @@ public class WorldOverlayRenderer implements IKeyStateTracker {
     }
 
     public static void render(float frame) {
+        GL11.glPushAttrib(GL11.GL_ENABLE_BIT | GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT | GL11.GL_LINE_BIT);
         GL11.glPushMatrix();
         Entity entity = Minecraft.getMinecraft().renderViewEntity;
 
@@ -66,9 +74,12 @@ public class WorldOverlayRenderer implements IKeyStateTracker {
 
         GL11.glTranslated(-interpPosX + intOffsetX, -interpPosY + intOffsetY, -interpPosZ + intOffsetZ);
 
+        GL11.glEnable(GL11.GL_DEPTH_TEST);
+        GL11.glDepthFunc(GL11.GL_LEQUAL);
         renderChunkBounds(entity, intOffsetX, intOffsetY, intOffsetZ);
         renderMobSpawnOverlay(entity, intOffsetX, intOffsetY, intOffsetZ);
         GL11.glPopMatrix();
+        GL11.glPopAttrib();
     }
 
     private static void buildMobSpawnOverlay(Entity entity) {
@@ -116,6 +127,15 @@ public class WorldOverlayRenderer implements IKeyStateTracker {
         }
     }
 
+    private static double getOverlayYOffset(World world, int x, int y, int z) {
+        Block block = world.getBlock(x, y, z);
+        if (block instanceof BlockSnow) {
+            int meta = world.getBlockMetadata(x, y, z) & 7;
+            return (1 + meta) / 8.0 + 0.02;
+        }
+        return 0.02;
+    }
+
     private static void renderMobSpawnOverlay(Entity entity, int intOffsetX, int intOffsetY, int intOffsetZ) {
         if (mobOverlay == 0) {
             if (mobSpawnCache != null) {
@@ -171,10 +191,12 @@ public class WorldOverlayRenderer implements IKeyStateTracker {
                         curSpawnMode = spawnMode;
                     }
 
-                    tess.addVertex(x, y + 0.02, z);
-                    tess.addVertex(x + 1, y + 0.02, z + 1);
-                    tess.addVertex(x + 1, y + 0.02, z);
-                    tess.addVertex(x, y + 0.02, z + 1);
+                    double yOff = getOverlayYOffset(world, x + intOffsetX, y + intOffsetY, z + intOffsetZ);
+
+                    tess.addVertex(x, y + yOff, z);
+                    tess.addVertex(x + 1, y + yOff, z + 1);
+                    tess.addVertex(x + 1, y + yOff, z);
+                    tess.addVertex(x, y + yOff, z + 1);
                 }
             }
         }
@@ -215,6 +237,9 @@ public class WorldOverlayRenderer implements IKeyStateTracker {
     private static void renderChunkBounds(Entity entity, int intOffsetX, int intOffsetY, int intOffsetZ) {
         if (chunkOverlay == 0) return;
 
+        int worldMinY = worldMinHeight(entity.worldObj);
+        int worldMaxY = worldMaxHeight(entity.worldObj);
+
         GL11.glDisable(GL11.GL_TEXTURE_2D);
         GL11.glEnable(GL11.GL_BLEND);
         GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
@@ -233,14 +258,13 @@ public class WorldOverlayRenderer implements IKeyStateTracker {
             double dy = 128;
             double y1 = Math.floor(entity.posY - dy / 2);
             double y2 = y1 + dy;
-            if (y1 < 0) {
-                y1 = 0;
-                y2 = dy;
+            if (y1 < worldMinY) {
+                y1 = worldMinY;
+                y2 = worldMinY + dy;
             }
-
-            if (y1 > entity.worldObj.getHeight()) {
-                y2 = entity.worldObj.getHeight();
-                y1 = y2 - dy;
+            if (y2 > worldMaxY) {
+                y2 = worldMaxY;
+                y1 = Math.max(worldMaxY - dy, worldMinY);
             }
 
             y1 -= intOffsetY;
@@ -266,23 +290,44 @@ public class WorldOverlayRenderer implements IKeyStateTracker {
                 tess.addVertex(x1, y2, z1);
             }
 
+            if (NEIModContainer.isCCLoaded()) {
+                tess.setColorRGBA_F(0, 0.5F, 0.9F, (float) dist * 0.5F);
+                int cubeBase = (int) Math.floor((y1 + intOffsetY) / 16.0) * 16;
+                for (int cubeY = cubeBase; cubeY <= y2 + intOffsetY; cubeY += 16) {
+                    double ry = cubeY - intOffsetY;
+                    tess.addVertex(x1, ry, z1);
+                    tess.addVertex(x2, ry, z1);
+                    tess.addVertex(x1, ry, z2);
+                    tess.addVertex(x2, ry, z2);
+                    tess.addVertex(x1, ry, z1);
+                    tess.addVertex(x1, ry, z2);
+                    tess.addVertex(x2, ry, z1);
+                    tess.addVertex(x2, ry, z2);
+                }
+            }
+
             if (cx == 0 && cz == 0) {
                 if (chunkOverlay == 2) {
                     dy = 32;
                     y1 = Math.floor(entity.posY - dy / 2);
                     y2 = y1 + dy;
-                    if (y1 < 0) {
-                        y1 = 0;
-                        y2 = dy;
+                    if (y1 < worldMinY) {
+                        y1 = worldMinY;
+                        y2 = worldMinY + dy;
                     }
-
-                    if (y1 > entity.worldObj.getHeight()) {
-                        y2 = entity.worldObj.getHeight();
-                        y1 = y2 - dy;
+                    if (y2 > worldMaxY) {
+                        y2 = worldMaxY;
+                        y1 = Math.max(worldMaxY - dy, worldMinY);
                     }
 
                     y1 -= intOffsetY;
                     y2 -= intOffsetY;
+                    double centerX = (x1 + x2) / 2;
+                    double centerZ = (z1 + z2) / 2;
+
+                    tess.setColorRGBA_F(0.9F, 0.9F, 0, (float) dist);
+                    tess.addVertex(centerX, y1, centerZ);
+                    tess.addVertex(centerX, y2, centerZ);
 
                     tess.setColorRGBA_F(0, 0.9F, 0, 0.4F);
                     for (double y = (int) y1; y <= y2; y++) {
@@ -377,20 +422,55 @@ public class WorldOverlayRenderer implements IKeyStateTracker {
         GL11.glDisable(GL11.GL_BLEND);
     }
 
-    private static String getOregenPatternName() {
-
-        if (oregenPatternName == null) {
-            try {
-                final ClassLoader loader = WorldOverlayRenderer.class.getClassLoader();
-                final Class<?> gtWorldGenerator = ReflectionHelper
-                        .getClass(loader, "gregtech.common.GTWorldgenerator", "gregtech.common.GT_Worldgenerator");
-                oregenPatternName = ((Enum<?>) gtWorldGenerator.getDeclaredField("oregenPattern").get(null)).name();
-            } catch (Exception ignored) {
-                oregenPatternName = "AXISSYMMETRICAL";
-            }
+    private static int worldMinHeight(World world) {
+        if (NEIModContainer.isCCLoaded() && world instanceof IMinMaxHeight worldHeights) {
+            return worldHeights.getMinHeight();
+        } else {
+            return 0;
         }
+    }
 
-        return oregenPatternName;
+    private static int worldMaxHeight(World world) {
+        if (NEIModContainer.isCCLoaded() && world instanceof IMinMaxHeight worldHeights) {
+            return worldHeights.getMaxHeight();
+        } else {
+            return world.getHeight();
+        }
+    }
+
+    private static Callable<String> oregenPatternReader;
+
+    private static String getOregenPatternName() {
+        if (oregenPatternReader == null) {
+            oregenPatternReader = resolveOregenPatternReader();
+        }
+        try {
+            return oregenPatternReader.call();
+        } catch (Exception ignored) {
+            return "AXISSYMMETRICAL";
+        }
+    }
+
+    private static Callable<String> resolveOregenPatternReader() {
+        try {
+            final Class<?> gtWorldGenerator = ReflectionHelper.getClass(
+                    WorldOverlayRenderer.class.getClassLoader(),
+                    "gregtech.common.GTWorldgenerator",
+                    "gregtech.common.GT_Worldgenerator");
+
+            try {
+                // GT5-Unofficial >= 5.09.54.29 support
+                final Method accessor = gtWorldGenerator.getMethod("getOregenPattern");
+                return () -> ((Enum<?>) accessor.invoke(null)).name();
+            } catch (NoSuchMethodException legacy) {
+                // Older GT
+                final Field oregenPattern = gtWorldGenerator.getDeclaredField("oregenPattern");
+                oregenPattern.setAccessible(true);
+                return () -> ((Enum<?>) oregenPattern.get(null)).name();
+            }
+        } catch (Exception ignored) {
+            return () -> "AXISSYMMETRICAL";
+        }
     }
 
     public static void load() {

src/main/java/codechicken/nei/api/API.java

@@ -1,15 +1,18 @@
 package codechicken.nei.api;
 
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.List;
 import java.util.Objects;
+import java.util.stream.Collectors;
 
 import net.minecraft.block.Block;
 import net.minecraft.client.gui.inventory.GuiContainer;
 import net.minecraft.inventory.Slot;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
+import net.minecraftforge.fluids.Fluid;
 
 import org.lwjgl.input.Keyboard;
 
@@ -20,7 +23,6 @@ import codechicken.nei.ItemList;
 import codechicken.nei.ItemSorter;
 import codechicken.nei.ItemStackSet;
 import codechicken.nei.KeyManager;
-import codechicken.nei.KeyManager.KeyState;
 import codechicken.nei.LayoutManager;
 import codechicken.nei.NEIClientConfig;
 import codechicken.nei.OffsetPositioner;
@@ -32,7 +34,7 @@ import codechicken.nei.SubsetWidget.SubsetTag;
 import codechicken.nei.api.IRecipeFilter.IRecipeFilterProvider;
 import codechicken.nei.api.ItemFilter.ItemFilterProvider;
 import codechicken.nei.config.Option;
-import codechicken.nei.config.OptionKeyBind;
+import codechicken.nei.item.FluidDrawer;
 import codechicken.nei.recipe.CatalystInfo;
 import codechicken.nei.recipe.GuiCraftingRecipe;
 import codechicken.nei.recipe.GuiRecipe;
@@ -146,14 +148,14 @@ public class API {
      * Hide an item from the item panel Damage values of OreDictionary.WILDCARD_VALUE and ItemStackMap.WILDCARD_TAG tags
      * function as wildcards for their respective variables
      */
-    public static void hideItem(ItemStack item) {
+    public static synchronized void hideItem(ItemStack item) {
         if (!ItemInfo.hiddenItems.contains(item)) {
             ItemInfo.hiddenItems.add(item);
             LayoutManager.markItemsDirty();
         }
     }
 
-    public static void hideItem(String rule) {
+    public static synchronized void hideItem(String rule) {
         ItemFilter filter = ItemStackFilterParser.parse(rule);
         if (filter != null) {
             ItemInfo.hiddenItemsRules.filters.add(filter);
@@ -176,6 +178,23 @@ public class API {
         }
     }
 
+    /**
+     * Add an alias name that this item can be found by in the search field, in addition to its display name.
+     *
+     * @param aliases translation keys, localized at search time
+     */
+    public static void setAliases(ItemStack item, String... aliases) {
+        final List<String> list = Arrays.asList(aliases).stream().filter(Objects::nonNull).map(String::trim)
+                .filter(s -> !s.isEmpty()).collect(Collectors.toList());
+
+        if (list.isEmpty()) {
+            ItemInfo.itemAliases.remove(item);
+        } else {
+            ItemInfo.itemAliases.put(item, list);
+        }
+
+    }
+
     /**
      * Adds an item to the item panel. Any items added using this function will override the default search pattern.
      *
@@ -206,20 +225,12 @@ public class API {
      * @param defaultKey The default value, commonly obtained from {@link Keyboard}
      */
     public static void addKeyBind(String ident, int defaultKey) {
-        NEIClientConfig.setDefaultKeyBinding(ident, defaultKey);
-        KeyManager.keyStates.put(ident, new KeyState());
-        addOption(new OptionKeyBind(ident));
+        KeyManager.registerKeyBinding(ident, defaultKey);
     }
 
-    /**
-     * Add a custom KeyBinding to be configured in the Controls menu.
-     *
-     * @param ident      An identifier for your key, eg "shoot"
-     * @param defaultKey The default value, commonly obtained from {@link Keyboard}
-     */
+    @Deprecated
     public static void addHashBind(String ident, int defaultKey) {
-        NEIClientConfig.setDefaultKeyBinding(ident, defaultKey);
-        addOption(new OptionKeyBind(ident, true));
+        KeyManager.registerKeyBinding(ident, defaultKey);
     }
 
     public static void addOption(Option option) {
@@ -368,6 +379,16 @@ public class API {
         StackInfo.stackStringifyHandlers.add(handler);
     }
 
+    /**
+     * Replaces the default rendering of a fluid in NEI fluid display slots and fluid tanks.
+     *
+     * @param fluid    the fluid to render
+     * @param renderer the renderer, or null to restore the default rendering
+     */
+    public static void registerFluidRenderer(Fluid fluid, IFluidRenderer renderer) {
+        FluidDrawer.registerFluidRenderer(fluid, renderer);
+    }
+
     /**
      * Adds an association between an ingredient and what it can craft. (i.e. Furnace ItemStack -> Smelting and Fuel
      * Recipes) Allows players to see what ingredient they need to craft in order to make recipes from a recipe

src/main/java/codechicken/nei/api/GuiInfo.java

@@ -51,20 +51,29 @@ public class GuiInfo {
     }
 
     public static boolean hideItemPanelSlot(GuiContainer gui, Rectangle4i rect) {
+        return hideItemPanelSlot(gui, rect, getGuiHandlersSnapshot());
+    }
+
+    public static INEIGuiHandler[] getGuiHandlersSnapshot() {
         try {
             readLock.lock();
-            if (guiHandlers.stream()
-                    .anyMatch(handler -> handler.hideItemPanelSlot(gui, rect.x, rect.y, rect.w, rect.h))) {
-                return true;
-            }
+            return guiHandlers.toArray(new INEIGuiHandler[0]);
         } finally {
             readLock.unlock();
         }
+    }
+
+    public static boolean hideItemPanelSlot(GuiContainer gui, Rectangle4i rect, INEIGuiHandler[] handlers) {
+        for (INEIGuiHandler handler : handlers) {
+            if (handler.hideItemPanelSlot(gui, rect.x, rect.y, rect.w, rect.h)) return true;
+        }
 
         for (Object item : gui.buttonList) {
             GuiButton button = (GuiButton) item;
 
-            if ((new Rectangle4i(button.xPosition, button.yPosition, button.width, button.height)).intersects(rect)) {
+            if (button.xPosition + button.width > rect.x && button.xPosition < rect.x + rect.w
+                    && button.yPosition + button.height > rect.y
+                    && button.yPosition < rect.y + rect.h) {
                 return true;
             }
         }

src/main/java/codechicken/nei/api/IFluidRenderer.java

@@ -0,0 +1,17 @@
+package codechicken.nei.api;
+
+import net.minecraftforge.fluids.Fluid;
+
+/**
+ * Custom renderer for a fluid, used by NEI fluid display slots and fluid tanks in recipes.
+ * <p>
+ * Register with {@link API#registerFluidRenderer(Fluid, IFluidRenderer)}.
+ */
+public interface IFluidRenderer {
+
+    /**
+     * Renders one 16x16 tile of the fluid. Partial tiles of a tank are clipped by NEI. The amount overlay is drawn by
+     * NEI.
+     */
+    void renderFluid(Fluid fluid, int x, int y);
+}

src/main/java/codechicken/nei/api/INEIGuiAdapter.java

@@ -1,15 +1,9 @@
 package codechicken.nei.api;
 
-import java.util.Collections;
-import java.util.List;
 import java.util.regex.Pattern;
 
-import net.minecraft.client.gui.inventory.GuiContainer;
-import net.minecraft.item.ItemStack;
 import net.minecraft.util.EnumChatFormatting;
 
-import codechicken.nei.VisiblityData;
-
 /**
  * Lets you just override those things you want to
  */
@@ -17,31 +11,6 @@ public class INEIGuiAdapter implements INEIGuiHandler {
 
     static final Pattern SPECIAL_REGEX_CHARS = Pattern.compile("[{}()\\[\\].+*?^$\\\\|]");
 
-    @Override
-    public VisiblityData modifyVisiblity(GuiContainer gui, VisiblityData currentVisibility) {
-        return currentVisibility;
-    }
-
-    @Override
-    public Iterable<Integer> getItemSpawnSlots(GuiContainer gui, ItemStack item) {
-        return Collections.emptyList();
-    }
-
-    @Override
-    public List<TaggedInventoryArea> getInventoryAreas(GuiContainer gui) {
-        return null;
-    }
-
-    @Override
-    public boolean handleDragNDrop(GuiContainer gui, int mousex, int mousey, ItemStack draggedStack, int button) {
-        return false;
-    }
-
-    @Override
-    public boolean hideItemPanelSlot(GuiContainer gui, int x, int y, int w, int h) {
-        return false;
-    }
-
     protected String formattingText(String displayName) {
         return SPECIAL_REGEX_CHARS.matcher(EnumChatFormatting.getTextWithoutFormattingCodes(displayName))
                 .replaceAll("\\\\$0");

src/main/java/codechicken/nei/api/INEIGuiHandler.java

@@ -1,5 +1,6 @@
 package codechicken.nei.api;
 
+import java.util.Collections;
 import java.util.List;
 
 import net.minecraft.client.gui.inventory.GuiContainer;
@@ -12,23 +13,29 @@ import codechicken.nei.VisiblityData;
  */
 public interface INEIGuiHandler {
 
-    public VisiblityData modifyVisiblity(GuiContainer gui, VisiblityData currentVisibility);
+    default VisiblityData modifyVisiblity(GuiContainer gui, VisiblityData currentVisibility) {
+        return currentVisibility;
+    }
 
     /**
      * NEI will give the specified item to the InventoryRange returned if the player's inventory is full. Should not
      * return null, just an empty list
      */
-    public Iterable<Integer> getItemSpawnSlots(GuiContainer gui, ItemStack item);
+    default Iterable<Integer> getItemSpawnSlots(GuiContainer gui, ItemStack item) {
+        return Collections.emptyList();
+    }
 
     /**
      * @return A list of TaggedInventoryAreas that will be used with the savestates.
      */
-    public List<TaggedInventoryArea> getInventoryAreas(GuiContainer gui);
+    default List<TaggedInventoryArea> getInventoryAreas(GuiContainer gui) {
+        return null;
+    }
 
     /**
      * Handles clicks while an itemstack has been dragged from the item panel. Use this to set configurable slots and
      * the like. Changes made to the stackSize of the dragged stack will be kept
-     * 
+     *
      * @param gui          The current gui instance
      * @param mousex       The x position of the mouse
      * @param mousey       The y position of the mouse
@@ -37,18 +44,22 @@ public interface INEIGuiHandler {
      * @return True if the drag n drop was handled. False to resume processing through other routes. The held stack will
      *         be deleted if draggedStack.stackSize == 0
      */
-    public boolean handleDragNDrop(GuiContainer gui, int mousex, int mousey, ItemStack draggedStack, int button);
+    default boolean handleDragNDrop(GuiContainer gui, int mousex, int mousey, ItemStack draggedStack, int button) {
+        return false;
+    }
 
     /**
      * Used to prevent the item panel from drawing on top of other gui elements. This function will also be called with
      * a 1x1 size rectangle on the mouse position for determining if the given coordinate should override item panel
      * functions such as scrolling
-     * 
+     *
      * @param x The x coordinate of the rectangle bounding the slot
      * @param y The y coordinate of the rectangle bounding the slot
      * @param w The w coordinate of the rectangle bounding the slot
      * @param h The h coordinate of the rectangle bounding the slot
      * @return true if the item panel slot within the specified rectangle should not be rendered.
      */
-    public boolean hideItemPanelSlot(GuiContainer gui, int x, int y, int w, int h);
+    default boolean hideItemPanelSlot(GuiContainer gui, int x, int y, int w, int h) {
+        return false;
+    }
 }

src/main/java/codechicken/nei/api/IOverlayHandler.java

@@ -1,14 +1,12 @@
 package codechicken.nei.api;
 
-import java.util.ArrayList;
 import java.util.List;
-import java.util.Optional;
 import java.util.stream.Collectors;
 
 import net.minecraft.client.gui.inventory.GuiContainer;
-import net.minecraft.item.ItemStack;
 
-import codechicken.nei.PositionedStack;
+import codechicken.nei.NEIClientConfig;
+import codechicken.nei.NEIClientUtils;
 import codechicken.nei.recipe.GuiOverlayButton.ItemOverlayState;
 import codechicken.nei.recipe.IRecipeHandler;
 
@@ -32,29 +30,19 @@ public interface IOverlayHandler {
         return false;
     }
 
+    default boolean requireShiftForOverlayRecipe() {
+        return NEIClientConfig.requireShiftForOverlayRecipe();
+    }
+
     default List<ItemOverlayState> presenceOverlay(GuiContainer firstGui, IRecipeHandler recipe, int recipeIndex) {
-        final List<ItemOverlayState> itemPresenceSlots = new ArrayList<>();
-        final List<PositionedStack> ingredients = recipe.getIngredientStacks(recipeIndex);
-        final List<ItemStack> invStacks = firstGui.inventorySlots.inventorySlots.stream()
-                .filter(
-                        s -> s != null && s.getStack() != null
-                                && s.getStack().stackSize > 0
-                                && s.isItemValid(s.getStack())
-                                && s.canTakeStack(firstGui.mc.thePlayer))
-                .map(s -> s.getStack().copy()).collect(Collectors.toList());
-
-        for (PositionedStack stack : ingredients) {
-            Optional<ItemStack> used = invStacks.stream().filter(is -> is.stackSize > 0 && stack.contains(is))
-                    .findAny();
-
-            itemPresenceSlots.add(new ItemOverlayState(stack, used.isPresent()));
-
-            if (used.isPresent()) {
-                ItemStack is = used.get();
-                is.stackSize -= 1;
-            }
-        }
-
-        return itemPresenceSlots;
+        return NEIClientUtils.presenceOverlay(
+                recipe.getIngredientStacks(recipeIndex),
+                firstGui.inventorySlots.inventorySlots.stream()
+                        .filter(
+                                s -> s != null && s.getStack() != null
+                                        && s.getStack().stackSize > 0
+                                        && s.isItemValid(s.getStack())
+                                        && s.canTakeStack(firstGui.mc.thePlayer))
+                        .map(s -> s.getStack().copy()).collect(Collectors.toList()));
     }
 }

src/main/java/codechicken/nei/api/IStackStringifyHandler.java

@@ -24,4 +24,8 @@ public interface IStackStringifyHandler {
 
     default void pauseItemDamageSound(boolean pause) {}
 
+    default boolean isFluidDisplayItem(ItemStack stack) {
+        return false;
+    }
+
 }

src/main/java/codechicken/nei/api/ItemInfo.java

@@ -1,6 +1,7 @@
 package codechicken.nei.api;
 
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.LinkedList;
@@ -35,6 +36,7 @@ import net.minecraft.util.MovingObjectPosition;
 import net.minecraft.util.RegistryNamespaced;
 import net.minecraft.world.World;
 import net.minecraft.world.biome.BiomeGenBase;
+import net.minecraftforge.client.MinecraftForgeClient;
 import net.minecraftforge.common.BiomeDictionary;
 import net.minecraftforge.common.IShearable;
 import net.minecraftforge.oredict.OreDictionary;
@@ -59,6 +61,8 @@ import codechicken.nei.config.HandlerDumper;
 import codechicken.nei.config.ItemPanelDumper;
 import codechicken.nei.config.RegistryDumper;
 import codechicken.nei.guihook.GuiContainerManager;
+import codechicken.nei.item.FluidDisplayRenderer;
+import codechicken.nei.item.ItemFluidDisplay;
 import codechicken.nei.recipe.BrewingRecipeHandler;
 import codechicken.nei.recipe.RecipeItemInputHandler;
 import codechicken.nei.search.IdentifierFilter;
@@ -76,14 +80,18 @@ import cpw.mods.fml.common.registry.GameRegistry.UniqueIdentifier;
  */
 public class ItemInfo {
 
-    public static enum Layout {
+    public enum Layout {
+
         HEADER,
         BODY,
-        FOOTER
+        FOOTER;
+
+        public static final Layout[] VALUES = values();
     }
 
     public static final ArrayListMultimap<Layout, IHighlightHandler> highlightHandlers = ArrayListMultimap.create();
     public static final ItemStackMap<String> nameOverrides = new ItemStackMap<>();
+    public static final ItemStackMap<List<String>> itemAliases = new ItemStackMap<>();
     public static final ItemStackSet hiddenItems = new ItemStackSet();
     public static final AnyMultiItemFilter hiddenItemsRules = new AnyMultiItemFilter();
     public static final ItemStackSet finiteItems = new ItemStackSet();
@@ -109,6 +117,11 @@ public class ItemInfo {
         return nameOverrides.get(stack);
     }
 
+    public static List<String> getAliases(ItemStack stack) {
+        final List<String> aliases = itemAliases.get(stack);
+        return aliases != null ? aliases : Collections.emptyList();
+    }
+
     public static boolean canBeInfinite(ItemStack stack) {
         return !finiteItems.contains(stack);
     }
@@ -123,6 +136,7 @@ public class ItemInfo {
 
     public static void preInit() {
         addMobSpawnerItem();
+        setupFluidDisplayItemClient();
     }
 
     public static void load() {
@@ -308,6 +322,11 @@ public class ItemInfo {
         GameDataManipulator.replaceItem(Block.getIdFromBlock(Blocks.mob_spawner), new ItemMobSpawner());
     }
 
+    private static void setupFluidDisplayItemClient() {
+        ItemFluidDisplay.INSTANCE.setCreativeTab(ItemFluidDisplay.tabFluids);
+        MinecraftForgeClient.registerItemRenderer(ItemFluidDisplay.INSTANCE, new FluidDisplayRenderer());
+    }
+
     private static void addInfiniteHandlers() {
         API.addInfiniteItemHandler(new InfiniteStackSizeHandler());
         API.addInfiniteItemHandler(new InfiniteToolHandler());
@@ -392,6 +411,7 @@ public class ItemInfo {
                 item -> item.getItem() instanceof ItemArmor armor && armor.armorType == 2);
         API.addSubset("Items.Armor.Boots", item -> item.getItem() instanceof ItemArmor armor && armor.armorType == 3);
         API.addSubset("Items.Food", item -> item.getItem() instanceof ItemFood);
+        API.addSubset("Items.Fluids", item -> item.getItem() instanceof ItemFluidDisplay);
         API.addSubset("Items.Potions.Ingredients", BrewingRecipeHandler.ingredients);
 
         for (CreativeTabs tab : CreativeTabs.creativeTabArray) {
@@ -465,7 +485,7 @@ public class ItemInfo {
             MovingObjectPosition mop) {
         List<String> retString = new ArrayList<>();
 
-        for (ItemInfo.Layout layout : ItemInfo.Layout.values())
+        for (ItemInfo.Layout layout : Layout.VALUES)
             for (IHighlightHandler handler : ItemInfo.highlightHandlers.get(layout))
                 retString = handler.handleTextData(itemStack, world, player, mop, retString, layout);
 

src/main/java/codechicken/nei/api/NEIInfo.java

@@ -5,6 +5,7 @@ import java.util.LinkedList;
 import net.minecraft.world.World;
 
 import codechicken.nei.NEIClientConfig;
+import codechicken.nei.config.GuiOptionList;
 import codechicken.nei.config.OptionCycled;
 
 public class NEIInfo {
@@ -13,7 +14,9 @@ public class NEIInfo {
 
     public static void load(World world) {
         OptionCycled modeOption = (OptionCycled) NEIClientConfig.getOptionList().getOption("inventory.cheatmode");
-        modeOption.parent.synthesizeEnvironment(false);
+        final boolean worldConfig = NEIClientConfig.isWorldSpecific("inventory.cheatmode");
+        // kept alive so the WeakReference in Option.slotRef isn't GC'd before copyGlobals/cycle use it
+        GuiOptionList env = modeOption.parent.synthesizeEnvironment(worldConfig);
         if (!modeOption.optionValid(modeOption.value())) {
             modeOption.copyGlobals();
             modeOption.cycle();

src/main/java/codechicken/nei/api/ShortcutInputHandler.java

@@ -19,21 +19,25 @@ import codechicken.nei.BookmarkContainerInfo;
 import codechicken.nei.FavoriteRecipes;
 import codechicken.nei.ItemPanels;
 import codechicken.nei.ItemQuantityField;
-import codechicken.nei.ItemsGrid.ItemsGridSlot;
+import codechicken.nei.KeyManager;
 import codechicken.nei.LayoutManager;
 import codechicken.nei.NEIClientConfig;
 import codechicken.nei.NEIClientUtils;
+import codechicken.nei.PositionedStack;
 import codechicken.nei.SearchField;
 import codechicken.nei.bookmark.BookmarkGrid;
 import codechicken.nei.bookmark.BookmarkGroup;
 import codechicken.nei.bookmark.BookmarkItem;
 import codechicken.nei.bookmark.BookmarkItem.BookmarkItemType;
+import codechicken.nei.bookmark.BookmarkPayload;
 import codechicken.nei.bookmark.BookmarksGridSlot;
+import codechicken.nei.bookmark.tree.GuiCraftingTree;
 import codechicken.nei.recipe.AutoCraftingManager;
 import codechicken.nei.recipe.GuiCraftingRecipe;
 import codechicken.nei.recipe.GuiFavoriteButton;
 import codechicken.nei.recipe.GuiRecipe;
 import codechicken.nei.recipe.GuiUsageRecipe;
+import codechicken.nei.recipe.HoveredRecipe;
 import codechicken.nei.recipe.Recipe;
 import codechicken.nei.recipe.Recipe.RecipeId;
 import codechicken.nei.recipe.RecipeHandlerRef;
@@ -74,8 +78,7 @@ public abstract class ShortcutInputHandler {
             return false;
         }
 
-        if (NEIClientConfig.isKeyHashDown("gui.overlay") && stackover == null
-                && LayoutManager.overlayRenderer != null) {
+        if (KeyManager.isKeyDown("gui.overlay") && stackover == null && LayoutManager.overlayRenderer != null) {
             LayoutManager.overlayRenderer = null;
             return true;
         }
@@ -85,16 +88,27 @@ public abstract class ShortcutInputHandler {
 
             if (groupId != -1) {
 
-                if (NEIClientConfig.isKeyHashDown("gui.remove_recipe")) {
+                if (KeyManager.isHashDown("bookmark.remove_recipe", NEIClientUtils.SHIFT_HASH)) {
                     ItemPanels.bookmarkPanel.removeGroup(groupId);
                     return true;
                 }
 
-                if (NEIClientConfig.isKeyHashDown("gui.bookmark_pull_items")) {
+                if (KeyManager.isKeyDown("bookmark.pull_items")) {
                     return ItemPanels.bookmarkPanel.pullBookmarkItems(groupId, NEIClientUtils.shiftKey());
                 }
 
-                if (NEIClientConfig.autocraftingEnabled() && NEIClientConfig.isKeyHashDown("gui.craft_items")
+                if (KeyManager.isKeyDown("bookmark.chat_link") && NEIClientUtils.controlKey()) {
+                    NEIClientUtils.sendChatItemLink(BookmarkPayload.of(groupId).toNBT());
+                    return true;
+                }
+
+                if (ItemPanels.bookmarkPanel.getGrid().isCraftingMode(groupId)
+                        && KeyManager.isKeyDown("bookmark.open_crafting_tree")) {
+                    GuiCraftingTree.openCraftingTreeGui(ItemPanels.bookmarkPanel.getGrid(), groupId);
+                    return true;
+                }
+
+                if (NEIClientConfig.autocraftingEnabled() && KeyManager.isKeyDown("gui.craft_items")
                         && NEIClientUtils.shiftKey()
                         && ItemPanels.bookmarkPanel.getGrid().isCraftingMode(groupId)) {
                     final RecipeChainMath math = ItemPanels.bookmarkPanel.getGrid().createRecipeChainMath(groupId);
@@ -117,46 +131,47 @@ public abstract class ShortcutInputHandler {
 
         stackover = stackover.copy();
 
-        if (NEIClientConfig.isKeyHashDown("gui.overlay")) {
+        if (KeyManager.isKeyDown("gui.overlay")) {
             return openOverlayRecipe(stackover);
         }
 
-        if (NEIClientConfig.isKeyHashDown("gui.copy_name")) {
+        if (KeyManager.isHashDown("copy.name", NEIClientUtils.CTRL_HASH)) {
             return copyItemStackName(stackover);
         }
-        if (NEIClientConfig.isKeyHashDown("gui.copy_id")) {
+
+        if (KeyManager.isHashDown("copy.identifier", NEIClientUtils.CTRL_HASH)) {
             return copyItemStackID(stackover);
         }
 
-        if (NEIClientConfig.isKeyHashDown("gui.copy_oredict")) {
+        if (KeyManager.isHashDown("copy.oredict", NEIClientUtils.CTRL_HASH)) {
             return copyItemStackOreDictionary(stackover);
         }
 
-        if (NEIClientConfig.isKeyHashDown("gui.chat_link_item")) {
-            return sendItemStackChatLink(stackover);
+        if (KeyManager.isKeyDown("bookmark.chat_link") && NEIClientUtils.controlKey()) {
+            return sendRecipeInChatLink(stackover, NEIClientUtils.shiftKey());
         }
 
-        if (NEIClientConfig.isKeyHashDown("gui.recipe")) {
+        if (KeyManager.isKeyDown("recipe.recipe")) {
             return GuiCraftingRecipe.openRecipeGui("item", stackover);
         }
 
-        if (NEIClientConfig.isKeyHashDown("gui.usage")) {
+        if (KeyManager.isKeyDown("recipe.usage")) {
             return GuiUsageRecipe.openRecipeGui("item", stackover);
         }
 
-        if (NEIClientConfig.isKeyHashDown("gui.favorite")) {
+        if (KeyManager.isHashDown("bookmark.favorite", NEIClientUtils.SHIFT_HASH)) {
             return saveFavoriteTree(stackover);
         }
 
-        if (NEIClientConfig.isKeyHashDown("gui.bookmark")) {
+        if (KeyManager.isKeyDown("bookmark.add")) {
             return saveRecipeInBookmark(stackover, NEIClientUtils.shiftKey(), NEIClientUtils.controlKey());
         }
 
-        if (NEIClientConfig.isKeyHashDown("gui.bookmark_pull_items")) {
+        if (KeyManager.isKeyDown("bookmark.pull_items")) {
             return pullRecipeItems(stackover, NEIClientUtils.shiftKey());
         }
 
-        if (NEIClientConfig.autocraftingEnabled() && NEIClientConfig.isKeyHashDown("gui.craft_items")
+        if (NEIClientConfig.autocraftingEnabled() && KeyManager.isKeyDown("gui.craft_items")
                 && NEIClientUtils.shiftKey()) {
             return runAutoCrafting(stackover, !NEIClientUtils.controlKey());
         }
@@ -196,10 +211,37 @@ public abstract class ShortcutInputHandler {
         return true;
     }
 
-    private static boolean sendItemStackChatLink(ItemStack stackover) {
-        if (stackover == null) return false;
+    private static boolean sendRecipeInChatLink(ItemStack stackover, boolean saveIngredients) {
+        final Point mousePos = GuiDraw.getMousePosition();
+        final BookmarksGridSlot slot = ItemPanels.bookmarkPanel.getSlotMouseOver(mousePos.x, mousePos.y);
 
-        NEIClientUtils.sendChatItemLink(stackover); // I wish clients could just send formatted messages
+        if (slot != null && saveIngredients && slot.getType() == BookmarkItemType.RESULT) {
+            NEIClientUtils.sendChatItemLink(BookmarkPayload.of(slot.getBookmarkItem()).toNBT());
+            return true;
+        }
+
+        final Recipe recipe = getFocusedRecipe(stackover, mousePos.x, mousePos.y, saveIngredients);
+
+        if (recipe != null && saveIngredients) {
+            NEIClientUtils.sendChatItemLink(BookmarkPayload.of(recipe).toNBT());
+            return true;
+        }
+
+        final RecipeId recipeId;
+
+        if (slot != null) {
+            recipeId = slot.getType() == BookmarkItemType.INGREDIENT ? null : slot.getRecipeId();
+        } else {
+            recipeId = recipe != null ? recipe.getRecipeId() : null;
+        }
+
+        final boolean existsRecipe = NEIClientConfig.getBooleanSetting("inventory.bookmarks.bookmarkItemsWithRecipe");
+
+        if (ItemPanels.itemPanel.containsWithSubpanels(mousePos.x, mousePos.y)) {
+            stackover = ItemQuantityField.prepareStackWithQuantity(stackover, 0);
+        }
+
+        NEIClientUtils.sendChatItemLink(BookmarkPayload.of(stackover, existsRecipe ? recipeId : null).toNBT());
         return true;
     }
 
@@ -239,7 +281,7 @@ public abstract class ShortcutInputHandler {
                 if (slot.getGroup().crafting == null) {
                     final Recipe recipe = Recipe.of(slot.getRecipeId());
                     if (recipe != null) {
-                        math = RecipeChainMath.of(recipe, Math.max(1, slot != null ? slot.getMultiplier() : 1));
+                        math = RecipeChainMath.of(recipe, Math.max(1, slot.getMultiplier()));
                     }
                 } else {
                     math = ItemPanels.bookmarkPanel.getGrid()
@@ -373,41 +415,37 @@ public abstract class ShortcutInputHandler {
 
     private static Recipe getFocusedRecipe(ItemStack stackover, int mousex, int mousey, boolean useFavorites) {
         final GuiContainer gui = NEIClientUtils.getGuiContainer();
-        Recipe recipe = null;
 
-        if (useFavorites) {
-            ItemsGridSlot itemSlot = ItemPanels.itemPanel.getSlotMouseOver(mousex, mousey);
-
-            if (itemSlot == null) {
-                itemSlot = ItemPanels.itemPanel.historyPanel.getSlotMouseOver(mousex, mousey);
-            }
-
-            if (itemSlot == null) {
-                itemSlot = ItemPanels.itemPanel.craftablesPanel.getSlotMouseOver(mousex, mousey);
-            }
-
-            if (itemSlot != null) {
-                final RecipeId recipeId = itemSlot.getRecipeId();
-
-                if (recipeId != null && (recipe = Recipe.of(recipeId)) != null) {
-
-                    recipe.getIngredients().stream().forEach(ingr -> {
-                        final List<ItemStack> permutations = ingr.getPermutations();
-                        for (int index = 0; index < permutations.size(); index++) {
-                            if (FavoriteRecipes.contains(permutations.get(index))) {
-                                ingr.setActiveIndex(index);
-                                break;
-                            }
-                        }
-                    });
-
-                }
+        if (gui instanceof GuiRecipe<?>guiRecipe) {
+            final Recipe focusedRecipe = guiRecipe.getFocusedRecipe();
 
+            if (focusedRecipe != null) {
+                return focusedRecipe;
             }
         }
 
-        if (gui instanceof GuiRecipe guiRecipe) {
-            recipe = guiRecipe.getFocusedRecipe();
+        if (!useFavorites) {
+            return null;
+        }
+
+        final HoveredRecipe hovered = HoveredRecipe.of(gui, stackover);
+
+        if (hovered == null || hovered.source != HoveredRecipe.Source.ITEM_PANEL) {
+            return null;
+        }
+
+        final Recipe recipe = Recipe.of(hovered.recipeId);
+
+        if (recipe != null) {
+            recipe.getIngredients().stream().forEach(ingr -> {
+                final List<ItemStack> permutations = ingr.getPermutations();
+                for (int index = 0; index < permutations.size(); index++) {
+                    if (FavoriteRecipes.contains(permutations.get(index))) {
+                        ingr.setActiveIndex(index);
+                        break;
+                    }
+                }
+            });
         }
 
         return recipe;
@@ -442,27 +480,38 @@ public abstract class ShortcutInputHandler {
         final Map<String, String> hotkeys = new HashMap<>();
 
         if (groupId != -1) {
+            final boolean isCraftingMode = ItemPanels.bookmarkPanel.getGrid().isCraftingMode(groupId);
 
             hotkeys.put(
-                    NEIClientConfig.getKeyName("gui.remove_recipe"),
+                    KeyManager.getKeyName("bookmark.remove_recipe", NEIClientUtils.SHIFT_HASH),
                     NEIClientUtils.translate("bookmark.group.remove_recipe"));
 
+            hotkeys.put(
+                    KeyManager.getKeyName("bookmark.chat_link", NEIClientUtils.CTRL_HASH),
+                    NEIClientUtils.translate("bookmark.group.chat_link"));
+
+            if (isCraftingMode) {
+                hotkeys.put(
+                        KeyManager.getKeyName("bookmark.open_crafting_tree"),
+                        NEIClientUtils.translate("bookmark.group.open_crafting_tree"));
+            }
+
             if (BookmarkContainerInfo.getBookmarkContainerHandler(gui) != null) {
                 hotkeys.put(
-                        NEIClientConfig.getKeyName("gui.bookmark_pull_items"),
+                        KeyManager.getKeyName("bookmark.pull_items"),
                         NEIClientUtils.translate("bookmark.group.pull_items"));
                 hotkeys.put(
-                        NEIClientConfig.getKeyName("gui.bookmark_pull_items", NEIClientUtils.SHIFT_HASH),
+                        KeyManager.getKeyName("bookmark.pull_items", NEIClientUtils.SHIFT_HASH),
                         NEIClientUtils.translate("bookmark.group.pull_items_shift"));
             }
 
-            if (NEIClientConfig.autocraftingEnabled() && ItemPanels.bookmarkPanel.getGrid().isCraftingMode(groupId)) {
+            if (NEIClientConfig.autocraftingEnabled() && isCraftingMode) {
                 hotkeys.put(
                         NEIClientConfig
                                 .getKeyName("gui.craft_items", NEIClientUtils.SHIFT_HASH + NEIClientUtils.CTRL_HASH),
                         NEIClientUtils.translate("bookmark.group.craft_missing"));
                 hotkeys.put(
-                        NEIClientConfig.getKeyName("gui.craft_items", NEIClientUtils.SHIFT_HASH),
+                        KeyManager.getKeyName("gui.craft_items", NEIClientUtils.SHIFT_HASH),
                         NEIClientUtils.translate("bookmark.group.craft_all"));
             }
 
@@ -476,37 +525,37 @@ public abstract class ShortcutInputHandler {
         }
 
         final BookmarksGridSlot slot = ItemPanels.bookmarkPanel.getSlotMouseOver(mousex, mousey);
-        final RecipeId recipeId = getHotkeyRecipeId(gui, mousex, mousey, stack, slot);
+        final HoveredRecipe hovered = HoveredRecipe.of(gui, stack);
+        final RecipeId recipeId = hovered == null || hovered.source == HoveredRecipe.Source.OTHER
+                || hovered.source == HoveredRecipe.Source.BOOKMARK && hovered.favorite ? null : hovered.recipeId;
 
         if (slot != null) {
             final BookmarkGroup group = slot.getGroup();
 
             if (group.crafting != null && group.collapsed) {
                 hotkeys.put(
-                        NEIClientConfig.getKeyName("gui.bookmark", NEIClientUtils.SHIFT_HASH),
+                        KeyManager.getKeyName("bookmark.add", NEIClientUtils.SHIFT_HASH),
                         NEIClientUtils.translate("bookmark.group.remove_recipe"));
             } else if (slot.getRecipeId() == null || slot.getType() == BookmarkItemType.ITEM) {
-                hotkeys.put(
-                        NEIClientConfig.getKeyName("gui.bookmark"),
-                        NEIClientUtils.translate("bookmark.remove_item"));
+                hotkeys.put(KeyManager.getKeyName("bookmark.add"), NEIClientUtils.translate("bookmark.remove_item"));
             } else if (group.crafting != null && group.crafting.recipeRelations.entrySet().stream().anyMatch(
                     entry -> entry.getKey().equals(slot.getRecipeId())
                             || entry.getValue().contains(slot.getRecipeId()))) {
                                 hotkeys.put(
-                                        NEIClientConfig.getKeyName("gui.bookmark", NEIClientUtils.SHIFT_HASH),
+                                        KeyManager.getKeyName("bookmark.add", NEIClientUtils.SHIFT_HASH),
                                         NEIClientUtils.translate("bookmark.remove_recipe"));
                             } else {
                                 hotkeys.put(
-                                        NEIClientConfig.getKeyName("gui.bookmark", NEIClientUtils.SHIFT_HASH),
+                                        KeyManager.getKeyName("bookmark.add", NEIClientUtils.SHIFT_HASH),
                                         NEIClientUtils.translate("bookmark.remove_recipe"));
 
                                 if (slot.getType() == BookmarkItemType.INGREDIENT) {
                                     hotkeys.put(
-                                            NEIClientConfig.getKeyName("gui.bookmark"),
+                                            KeyManager.getKeyName("bookmark.add"),
                                             NEIClientUtils.translate("bookmark.remove_item"));
 
                                     hotkeys.put(
-                                            NEIClientConfig.getKeyName("gui.bookmark", NEIClientUtils.SHIFT_HASH),
+                                            KeyManager.getKeyName("bookmark.add", NEIClientUtils.SHIFT_HASH),
                                             NEIClientUtils.translate("bookmark.remove_recipe"));
                                 } else {
                                     final BookmarkItem item = slot.getBookmarkItem();
@@ -516,14 +565,14 @@ public abstract class ShortcutInputHandler {
                                                     m -> m.type == BookmarkItemType.RESULT && !m.equals(item)
                                                             && item.equalsRecipe(m))) {
                                         hotkeys.put(
-                                                NEIClientConfig.getKeyName("gui.bookmark"),
+                                                KeyManager.getKeyName("bookmark.add"),
                                                 NEIClientUtils.translate("bookmark.remove_recipe"));
                                     } else {
                                         hotkeys.put(
-                                                NEIClientConfig.getKeyName("gui.bookmark"),
+                                                KeyManager.getKeyName("bookmark.add"),
                                                 NEIClientUtils.translate("bookmark.remove_item"));
                                         hotkeys.put(
-                                                NEIClientConfig.getKeyName("gui.bookmark", NEIClientUtils.SHIFT_HASH),
+                                                KeyManager.getKeyName("bookmark.add", NEIClientUtils.SHIFT_HASH),
                                                 NEIClientUtils.translate("bookmark.remove_recipe"));
                                     }
 
@@ -533,60 +582,66 @@ public abstract class ShortcutInputHandler {
 
             if (BookmarkContainerInfo.getBookmarkContainerHandler(gui) != null) {
                 hotkeys.put(
-                        NEIClientConfig.getKeyName("gui.bookmark_pull_items"),
+                        KeyManager.getKeyName("bookmark.pull_items"),
                         NEIClientUtils.translate("bookmark.group.pull_items"));
                 hotkeys.put(
-                        NEIClientConfig.getKeyName("gui.bookmark_pull_items", NEIClientUtils.SHIFT_HASH),
+                        KeyManager.getKeyName("bookmark.pull_items", NEIClientUtils.SHIFT_HASH),
                         NEIClientUtils.translate("bookmark.group.pull_items_shift"));
             }
 
         } else {
-            hotkeys.put(NEIClientConfig.getKeyName("gui.bookmark"), NEIClientUtils.translate("bookmark.add_item"));
+            hotkeys.put(KeyManager.getKeyName("bookmark.add"), NEIClientUtils.translate("bookmark.add_item"));
 
             if (StackInfo.getAmount(stack) > 0) {
                 hotkeys.put(
-                        NEIClientConfig.getKeyName("gui.bookmark", NEIClientUtils.CTRL_HASH),
+                        KeyManager.getKeyName("bookmark.add", NEIClientUtils.CTRL_HASH),
                         NEIClientUtils.translate("bookmark.add_item_with_count"));
             }
 
             if (recipeId != null) {
                 hotkeys.put(
-                        NEIClientConfig
-                                .getKeyName("gui.bookmark", NEIClientUtils.SHIFT_HASH + NEIClientUtils.CTRL_HASH),
+                        KeyManager.getKeyName("bookmark.add", NEIClientUtils.SHIFT_HASH + NEIClientUtils.CTRL_HASH),
                         NEIClientUtils.translate("bookmark.add_item_with_recipe_and_count"));
                 hotkeys.put(
-                        NEIClientConfig.getKeyName("gui.bookmark", NEIClientUtils.SHIFT_HASH),
+                        KeyManager.getKeyName("bookmark.add", NEIClientUtils.SHIFT_HASH),
                         NEIClientUtils.translate("bookmark.add_item_with_recipe"));
             }
 
             if ((ItemPanels.itemPanel.contains(mousex, mousey)
                     || ItemPanels.itemPanel.historyPanel.contains(mousex, mousey)) && FavoriteRecipes.contains(stack)) {
                 hotkeys.put(
-                        NEIClientConfig.getKeyName("gui.favorite"),
+                        KeyManager.getKeyName("bookmark.favorite", NEIClientUtils.SHIFT_HASH),
                         NEIClientUtils.translate("recipe.favorite.bookmark_recipe"));
             }
 
         }
 
-        hotkeys.put(NEIClientConfig.getKeyName("gui.recipe"), NEIClientUtils.translate("itempanel.open_crafting"));
-        hotkeys.put(NEIClientConfig.getKeyName("gui.usage"), NEIClientUtils.translate("itempanel.open_usage"));
+        hotkeys.put(KeyManager.getKeyName("recipe.recipe"), NEIClientUtils.translate("itempanel.open_crafting"));
+        hotkeys.put(KeyManager.getKeyName("recipe.usage"), NEIClientUtils.translate("itempanel.open_usage"));
 
-        hotkeys.put(NEIClientConfig.getKeyName("gui.copy_name"), NEIClientUtils.translate("itempanel.copy_name"));
-        hotkeys.put(NEIClientConfig.getKeyName("gui.copy_oredict"), NEIClientUtils.translate("itempanel.copy_oredict"));
-        hotkeys.put(NEIClientConfig.getKeyName("gui.copy_id"), NEIClientUtils.translate("itempanel.copy_id"));
         hotkeys.put(
-                NEIClientConfig.getKeyName("gui.chat_link_item"),
-                NEIClientUtils.translate("itempanel.chat_link_item"));
+                KeyManager.getKeyName("copy.name", NEIClientUtils.CTRL_HASH),
+                NEIClientUtils.translate("itempanel.copy_name"));
+        hotkeys.put(
+                KeyManager.getKeyName("copy.oredict", NEIClientUtils.CTRL_HASH),
+                NEIClientUtils.translate("itempanel.copy_oredict"));
+        hotkeys.put(
+                KeyManager.getKeyName("copy.identifier", NEIClientUtils.CTRL_HASH),
+                NEIClientUtils.translate("itempanel.copy_id"));
+
+        hotkeys.put(
+                KeyManager.getKeyName("bookmark.chat_link", NEIClientUtils.CTRL_HASH),
+                NEIClientUtils.translate("bookmark.item.chat_link"));
 
         if (!(gui instanceof GuiRecipe) && NEIClientConfig.canCheatItem(stack)) {
             hotkeys.put(
-                    NEIClientUtils.getKeyName(NEIClientUtils.SHIFT_HASH, NEIMouseUtils.MOUSE_BTN_LMB),
+                    KeyManager.getKeyName(NEIClientUtils.SHIFT_HASH, NEIMouseUtils.MOUSE_BTN_LMB),
                     NEIClientUtils.translate("itempanel.open_crafting"));
             hotkeys.put(
-                    NEIClientUtils.getKeyName(NEIClientUtils.SHIFT_HASH, NEIMouseUtils.MOUSE_BTN_RMB),
+                    KeyManager.getKeyName(NEIClientUtils.SHIFT_HASH, NEIMouseUtils.MOUSE_BTN_RMB),
                     NEIClientUtils.translate("itempanel.open_usage"));
             hotkeys.put(
-                    NEIClientUtils.getKeyName(NEIClientUtils.CTRL_HASH, NEIMouseUtils.MOUSE_BTN_LMB),
+                    KeyManager.getKeyName(NEIClientUtils.CTRL_HASH, NEIMouseUtils.MOUSE_BTN_LMB),
                     NEIClientUtils.translate("itempanel.infinite_item"));
         } else {
             hotkeys.put(
@@ -604,18 +659,18 @@ public abstract class ShortcutInputHandler {
 
                 if (handlerRef.canUseOverlayRenderer(gui)) {
                     hotkeys.put(
-                            NEIClientConfig.getKeyName("gui.overlay"),
+                            KeyManager.getKeyName("gui.overlay"),
                             NEIClientUtils.translate("itempanel.overlay_recipe"));
                 }
 
                 if (handlerRef.canFillCraftingGrid(gui)) {
                     hotkeys.put(
-                            NEIClientConfig.getKeyName("gui.overlay", NEIClientUtils.SHIFT_HASH),
+                            KeyManager.getKeyName("gui.overlay", NEIClientUtils.SHIFT_HASH),
                             NEIClientUtils.translate("itempanel.fill_crafting_grid"));
 
                     if (handlerRef.allowedTransferAlghoritm(gui)) {
                         hotkeys.put(
-                                NEIClientConfig.getKeyName(
+                                KeyManager.getKeyName(
                                         "gui.overlay",
                                         NEIClientUtils.SHIFT_HASH + NEIClientUtils.CTRL_HASH),
                                 NEIClientUtils.translate("itempanel.fill_crafting_grid_quantity"));
@@ -624,16 +679,19 @@ public abstract class ShortcutInputHandler {
 
                 if (NEIClientConfig.autocraftingEnabled()) {
                     hotkeys.put(
-                            NEIClientConfig.getKeyName(
+                            KeyManager.getKeyName(
                                     "gui.craft_items",
                                     NEIClientUtils.SHIFT_HASH + NEIClientUtils.CTRL_HASH),
                             NEIClientUtils.translate("itempanel.craft_missing"));
                     hotkeys.put(
-                            NEIClientConfig.getKeyName("gui.craft_items", NEIClientUtils.SHIFT_HASH),
+                            KeyManager.getKeyName("gui.craft_items", NEIClientUtils.SHIFT_HASH),
                             NEIClientUtils.translate("itempanel.craft_all"));
                 }
             }
 
+            hotkeys.put(
+                    KeyManager.getKeyName("bookmark.chat_link", NEIClientUtils.SHIFT_HASH + NEIClientUtils.CTRL_HASH),
+                    NEIClientUtils.translate("bookmark.recipe.chat_link"));
         }
 
         hotkeysCache.update(mousex, mousey, stack, groupId, hotkeys);
@@ -646,8 +704,10 @@ public abstract class ShortcutInputHandler {
         final List<ItemStack> playerInventory = AutoCraftingManager.getInventoryItems(guiContainer).values();
         final RecipeId rootRecipeId = math.createMasterRoot();
 
-        for (BookmarkItem item : math.recipeIngredients) {
-            if (item.amount > 0 && rootRecipeId.equals(item.recipeId)) {
+        for (int i = 0; i < math.recipeIngredients.size(); i++) {
+            final BookmarkItem item = math.recipeIngredients.get(i);
+
+            if (item.getAmount() > 0 && rootRecipeId.equals(item.recipeId)) {
                 long amount = 0;
 
                 for (ItemStack stack : playerInventory) {
@@ -656,43 +716,15 @@ public abstract class ShortcutInputHandler {
                     }
                 }
 
-                if (amount >= item.amount) {
-                    item.factor = item.amount = amount + item.amount - (amount % item.amount);
+                if (amount >= item.getAmount()) {
+                    math.recipeIngredients.set(
+                            i,
+                            BookmarkItem.builder(item).multiplier(1)
+                                    .factor(amount + item.getAmount() - (amount % item.getAmount()))
+                                    .chance(PositionedStack.CHANCE_FULL).build());
                 }
             }
         }
     }
 
-    private static RecipeId getHotkeyRecipeId(GuiContainer gui, int mousex, int mousey, ItemStack stack,
-            BookmarksGridSlot slot) {
-
-        if (slot != null) {
-            return slot.getType() == BookmarkItemType.INGREDIENT ? null : slot.getRecipeId();
-        }
-
-        ItemsGridSlot itemSlot = ItemPanels.itemPanel.getSlotMouseOver(mousex, mousey);
-
-        if (itemSlot == null) {
-            itemSlot = ItemPanels.itemPanel.historyPanel.getSlotMouseOver(mousex, mousey);
-        }
-
-        if (itemSlot == null) {
-            itemSlot = ItemPanels.itemPanel.craftablesPanel.getSlotMouseOver(mousex, mousey);
-        }
-
-        if (itemSlot != null) {
-            return itemSlot.getRecipeId();
-        }
-
-        if (gui instanceof GuiRecipe guiRecipe) {
-            final Recipe focusedRecipe = guiRecipe.getFocusedRecipe();
-
-            if (focusedRecipe != null) {
-                return focusedRecipe.getRecipeId();
-            }
-        }
-
-        return null;
-    }
-
 }

src/main/java/codechicken/nei/asm/KeyBindingFixHooks.java

@@ -0,0 +1,76 @@
+package codechicken.nei.asm;
+
+import java.lang.reflect.Field;
+import java.util.Collections;
+import java.util.List;
+
+import net.minecraft.client.settings.KeyBinding;
+
+import cpw.mods.fml.relauncher.ReflectionHelper;
+
+public final class KeyBindingFixHooks {
+
+    private static volatile boolean initialized;
+    private static Field keybindArrayField;
+    private static Field pressedField;
+    private static Field pressTimeField;
+
+    private KeyBindingFixHooks() {}
+
+    public static void onTickAll(int keyCode) {
+
+        if (keyCode == 0) {
+            return;
+        }
+
+        for (KeyBinding binding : getBindings()) {
+            if (binding.getKeyCode() == keyCode) {
+                try {
+                    pressTimeField.setInt(binding, pressTimeField.getInt(binding) + 1);
+                } catch (Exception ignored) {}
+            }
+        }
+
+    }
+
+    public static void setKeyBindStateAll(int keyCode, boolean pressed) {
+
+        if (keyCode == 0) {
+            return;
+        }
+
+        for (KeyBinding binding : getBindings()) {
+            if (binding.getKeyCode() == keyCode) {
+                try {
+                    pressedField.setBoolean(binding, pressed);
+                } catch (Exception ignored) {}
+            }
+        }
+
+    }
+
+    @SuppressWarnings("unchecked")
+    private static List<KeyBinding> getBindings() {
+        init();
+
+        try {
+            return (List<KeyBinding>) keybindArrayField.get(null);
+        } catch (Exception ignored) {}
+
+        return Collections.emptyList();
+    }
+
+    private static synchronized void init() {
+
+        if (initialized) {
+            return;
+        }
+
+        keybindArrayField = ReflectionHelper.findField(KeyBinding.class, "keybindArray", "field_74516_a");
+        pressedField = ReflectionHelper.findField(KeyBinding.class, "pressed", "field_74513_e");
+        pressTimeField = ReflectionHelper.findField(KeyBinding.class, "pressTime", "field_151474_i");
+
+        initialized = true;
+    }
+
+}

src/main/java/codechicken/nei/asm/NEITransformer.java

@@ -14,6 +14,7 @@ import static org.objectweb.asm.Opcodes.ILOAD;
 import static org.objectweb.asm.Opcodes.INVOKESPECIAL;
 import static org.objectweb.asm.Opcodes.INVOKEVIRTUAL;
 import static org.objectweb.asm.Opcodes.IRETURN;
+import static org.objectweb.asm.Opcodes.NEW;
 
 import java.util.Map;
 
@@ -22,11 +23,14 @@ import net.minecraft.launchwrapper.IClassTransformer;
 import org.objectweb.asm.ClassReader;
 import org.objectweb.asm.ClassWriter;
 import org.objectweb.asm.Type;
+import org.objectweb.asm.tree.AbstractInsnNode;
 import org.objectweb.asm.tree.ClassNode;
 import org.objectweb.asm.tree.FieldInsnNode;
 import org.objectweb.asm.tree.InsnList;
 import org.objectweb.asm.tree.InsnNode;
+import org.objectweb.asm.tree.MethodInsnNode;
 import org.objectweb.asm.tree.MethodNode;
+import org.objectweb.asm.tree.TypeInsnNode;
 import org.objectweb.asm.tree.VarInsnNode;
 
 import codechicken.lib.asm.ASMBlock;
@@ -56,7 +60,8 @@ public class NEITransformer implements IClassTransformer {
 
     public NEITransformer() {
         if (FMLLaunchHandler.side().isClient()) {
-            // Generates method to set the placed position of a mob spawner for the item callback. More portable than
+            // Generates method to set the placed position of a mob spawner for the item
+            // callback. More portable than
             // copying vanilla placement code
             transformer.add(
                     new MethodWriter(
@@ -82,7 +87,6 @@ public class NEITransformer implements IClassTransformer {
                         asmblocks.get("commaFix"),
                         true));
 
-        // fix workbench container losing items on shift click output without room for the full stack
         transformer.add(
                 new MethodTransformer(
                         new ObfMapping(
@@ -98,6 +102,48 @@ public class NEITransformer implements IClassTransformer {
                     }
                 });
 
+        if (Boolean.getBoolean("nei.recipeOrigins")) {
+            // Replace the plain ArrayList CraftingManager's constructor builds its recipe list with, so every recipe
+            // added anywhere (including vanilla's own, added in that same constructor) is observed for
+            // codechicken.nei.recipe.debug.RecipeOrigins. Must be done at classload time, since by the time any mod
+            // code runs vanilla has already populated the list. Capturing a stack trace per recipe is slow, so this is
+            // opt-in via -Dnei.recipeOrigins=true.
+            transformer.add(
+                    new MethodTransformer(
+                            new ObfMapping("net/minecraft/item/crafting/CraftingManager", "<init>", "()V")) {
+
+                        @Override
+                        public void transform(MethodNode mv) {
+                            ASMHelper.logger.debug("NEI: Hooking CraftingManager recipe list for origin tracking");
+
+                            TypeInsnNode newInsn = null;
+                            MethodInsnNode initInsn = null;
+
+                            // only the first ArrayList construction, the recipe list field
+                            for (AbstractInsnNode insn : mv.instructions.toArray()) {
+                                if (newInsn == null) {
+                                    if (insn.getOpcode() == NEW
+                                            && "java/util/ArrayList".equals(((TypeInsnNode) insn).desc)) {
+                                        newInsn = (TypeInsnNode) insn;
+                                    }
+                                } else if (insn.getOpcode() == INVOKESPECIAL
+                                        && "java/util/ArrayList".equals(((MethodInsnNode) insn).owner)
+                                        && "<init>".equals(((MethodInsnNode) insn).name)) {
+                                            initInsn = (MethodInsnNode) insn;
+                                            break;
+                                        }
+                            }
+
+                            if (newInsn == null || initInsn == null) {
+                                ASMHelper.logger.warn("NEI: CraftingManager recipe list not found, origins disabled");
+                                return;
+                            }
+
+                            newInsn.desc = initInsn.owner = "codechicken/nei/recipe/debug/RecipeOrigins$TrackingList";
+                        }
+                    });
+        }
+
         // put glint alpha into the buffer correctly for exporting
         transformer.add(
                 new MethodReplacer(
@@ -105,6 +151,33 @@ public class NEITransformer implements IClassTransformer {
                         asmblocks.get("d_glintAlphaFix"),
                         asmblocks.get("glintAlphaFix")));
 
+        if (FMLLaunchHandler.side().isClient()) {
+            transformer.add(
+                    new MethodWriter(
+                            ACC_PUBLIC | ACC_STATIC,
+                            new ObfMapping("net/minecraft/client/settings/KeyBinding", "func_74507_a", "(I)V"),
+                            asmblocks.get("m_keyBindingOnTickAll")));
+
+            transformer.add(
+                    new MethodWriter(
+                            ACC_PUBLIC | ACC_STATIC,
+                            new ObfMapping("net/minecraft/client/settings/KeyBinding", "func_74510_a", "(IZ)V"),
+                            asmblocks.get("m_keyBindingSetStateAll")));
+
+            transformer.add(
+                    new MethodInjector(
+                            new ObfMapping("net/minecraft/client/settings/GameSettings", "func_74303_b", "()V"),
+                            asmblocks.get("saveOptionsHook"),
+                            true));
+
+            transformer.add(
+                    new MethodInjector(
+                            new ObfMapping("net/minecraft/client/settings/GameSettings", "func_74303_b", "()V"),
+                            asmblocks.get("n_saveOptionsSendSettings"),
+                            asmblocks.get("saveOptionsRestoreHook"),
+                            false));
+        }
+
         String GuiContainer = "net/minecraft/client/gui/inventory/GuiContainer";
         // add manager field
         transformer.add(

src/main/java/codechicken/nei/asm/SaveOptionsFixHooks.java

@@ -0,0 +1,78 @@
+package codechicken.nei.asm;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import codechicken.core.CommonUtils;
+import codechicken.nei.KeyManager;
+import codechicken.nei.NEIClientConfig;
+
+public final class SaveOptionsFixHooks {
+
+    private static final String KEY_PREFIX = "key_nei.options.keys.";
+
+    private static List<String> pendingRestoreLines;
+
+    private SaveOptionsFixHooks() {}
+
+    public static void onBeforeSaveOptions() {
+        pendingRestoreLines = null;
+
+        if (NEIClientConfig.isLoaded()) {
+            return;
+        }
+
+        final File optionsFile = new File(CommonUtils.getMinecraftDir(), "options.txt");
+        if (!optionsFile.exists()) {
+            return;
+        }
+
+        final List<String> missing = new ArrayList<>();
+
+        try (BufferedReader reader = new BufferedReader(new FileReader(optionsFile))) {
+            String line;
+            while ((line = reader.readLine()) != null) {
+                if (!line.startsWith(KEY_PREFIX)) continue;
+                final int colon = line.indexOf(':');
+                if (colon <= 0) continue;
+
+                final String description = line.substring(4, colon);
+                if (!KeyManager.isRegistered(description)) {
+                    missing.add(line);
+                }
+            }
+        } catch (IOException e) {
+            NEIClientConfig.logger.error("Failed to read key bindings before options save", e);
+            return;
+        }
+
+        if (!missing.isEmpty()) {
+            pendingRestoreLines = missing;
+        }
+    }
+
+    public static void onAfterSaveOptions() {
+        final List<String> restore = pendingRestoreLines;
+        pendingRestoreLines = null;
+
+        if (restore == null) {
+            return;
+        }
+
+        final File optionsFile = new File(CommonUtils.getMinecraftDir(), "options.txt");
+
+        try (FileWriter writer = new FileWriter(optionsFile, true)) {
+            for (String line : restore) {
+                writer.write(line);
+                writer.write(System.lineSeparator());
+            }
+        } catch (IOException e) {
+            NEIClientConfig.logger.error("Failed to restore NEI key bindings after options save", e);
+        }
+    }
+}

src/main/java/codechicken/nei/bookmark/BookmarkGrid.java

@@ -33,6 +33,7 @@ import codechicken.nei.NEIClientUtils;
 import codechicken.nei.bookmark.BookmarkItem.BookmarkItemType;
 import codechicken.nei.recipe.Recipe;
 import codechicken.nei.recipe.Recipe.RecipeId;
+import codechicken.nei.recipe.Recipe.RecipeIngredient;
 import codechicken.nei.recipe.StackInfo;
 import codechicken.nei.recipe.chain.RecipeChainMath;
 
@@ -139,17 +140,16 @@ public class BookmarkGrid extends ItemsGrid<BookmarksGridSlot, BookmarkGrid.Book
             if (group.collapsedRecipes.contains(collapsedRecipeId)) {
 
                 for (BookmarkItem item : this.bookmarkItems) {
-                    if (item.groupId == groupId && collapsedRecipeId.equals(item.recipeId)
-                            && item.amount == item.factor) {
-                        item.amount = 0;
+                    if (item.groupId == groupId && collapsedRecipeId.equals(item.recipeId) && item.multiplier == 1) {
+                        item.multiplier = 0;
                     }
                 }
 
             } else {
 
                 for (BookmarkItem item : this.bookmarkItems) {
-                    if (item.groupId == groupId && collapsedRecipeId.equals(item.recipeId) && item.amount == 0) {
-                        item.amount = item.factor;
+                    if (item.groupId == groupId && collapsedRecipeId.equals(item.recipeId) && item.multiplier == 0) {
+                        item.multiplier = 1;
                     }
                 }
 
@@ -179,11 +179,15 @@ public class BookmarkGrid extends ItemsGrid<BookmarksGridSlot, BookmarkGrid.Book
     }
 
     public int addGroup(BookmarkGroup group) {
-        int groupId = this.bookmarkItems.stream().mapToInt(item -> item.groupId).max().orElse(DEFAULT_GROUP_ID) + 1;
+        final int groupId = getNextGroupId();
         this.groups.put(groupId, group);
         return groupId;
     }
 
+    public int getNextGroupId() {
+        return this.bookmarkItems.stream().mapToInt(item -> item.groupId).max().orElse(DEFAULT_GROUP_ID) + 1;
+    }
+
     @Override
     public int getNumPages() {
 
@@ -448,8 +452,9 @@ public class BookmarkGrid extends ItemsGrid<BookmarksGridSlot, BookmarkGrid.Book
         if (!this.isEmpty() && this.gridGenerator.maxAbsoluteSlotIndex > 0) {
             final GroupingItem groupingItem = ItemPanels.bookmarkPanel.groupingItem;
             final int sortableGroupId = ItemPanels.bookmarkPanel.sortableGroup != null
-                    ? ItemPanels.bookmarkPanel.sortableGroup.groupId
-                    : -3;
+                    && ItemPanels.bookmarkPanel.sortableGroup.grid == this
+                            ? ItemPanels.bookmarkPanel.sortableGroup.groupId
+                            : -3;
             final int rowShift = this.page * this.rows;
             Map<Integer, Integer> groups = this.gridGenerator.rowToGroupId;
 
@@ -600,6 +605,11 @@ public class BookmarkGrid extends ItemsGrid<BookmarksGridSlot, BookmarkGrid.Book
 
     public RecipeChainMath createRecipeChainMath(int groupId, RecipeId recipeId) {
         final BookmarkGroup group = getGroup(groupId);
+
+        if (group == null) {
+            return null;
+        }
+
         final List<BookmarkItem> chainItems = new ArrayList<>();
         final Set<RecipeId> collapsedRecipes = group.crafting != null && recipeId == null ? group.collapsedRecipes
                 : Collections.emptySet();
@@ -627,15 +637,17 @@ public class BookmarkGrid extends ItemsGrid<BookmarksGridSlot, BookmarkGrid.Book
         for (int itemIndex = 0; itemIndex < this.bookmarkItems.size(); itemIndex++) {
             final BookmarkItem item = this.bookmarkItems.get(itemIndex);
             if (item.groupId == groupId && (recipeRelations == null || recipeRelations.contains(item.recipeId))) {
-                long amount = item.amount;
 
                 if (recipeId != null && group.crafting != null
                         && group.crafting.calculatedItems.containsKey(itemIndex)
                         && recipeId.equals(item.recipeId)) {
-                    amount = group.crafting.calculatedItems.get(itemIndex).getCalculatedAmount();
+                    chainItems.add(
+                            item.copyWithMultiplier(
+                                    group.crafting.calculatedItems.get(itemIndex).getCalculatedMultiplier()));
+                } else {
+                    chainItems.add(item.copy());
                 }
 
-                chainItems.add(item.copyWithAmount(amount));
             }
         }
 
@@ -784,10 +796,10 @@ public class BookmarkGrid extends ItemsGrid<BookmarksGridSlot, BookmarkGrid.Book
                 this.bookmarkItems.add(item);
             }
 
-            sortableGroup.grid = this;
-            sortableGroup.groupId = groupId;
+            sortableGroup.update(this, groupId);
             this.onItemsChanged();
             this.getMask();// force generate grid
+            overGroupId = getRowGroupId(overRowIndex);
         }
 
         if (sortableGroup.groupId == overGroupId) {
@@ -877,6 +889,16 @@ public class BookmarkGrid extends ItemsGrid<BookmarksGridSlot, BookmarkGrid.Book
         return this.bookmarkItems.get(itemIndex);
     }
 
+    public void replaceBookmarkItem(int itemIndex, BookmarkItem newItem) {
+
+        if (itemIndex < 0 || itemIndex >= this.bookmarkItems.size()) {
+            return;
+        }
+
+        this.bookmarkItems.set(itemIndex, newItem);
+        onItemsChanged();
+    }
+
     public int getAbsoluteSlotIndex(int itemIndex) {
         return this.gridGenerator.itemToSlot.getOrDefault(itemIndex, -1);
     }
@@ -896,40 +918,44 @@ public class BookmarkGrid extends ItemsGrid<BookmarksGridSlot, BookmarkGrid.Book
     }
 
     public void addRecipe(Recipe recipe, int multiplier, int groupId) {
-        final RecipeId recipeId = recipe.getRecipeId();
-        final List<ItemStack> results = recipe.getResults().stream().map(res -> res.getItemStack())
-                .collect(Collectors.toList());
-        final List<ItemStack> ingredients = recipe.getIngredients().stream().map(ingr -> ingr.getItemStack())
-                .collect(Collectors.toList());
+        final ItemStackAmount seenResults = new ItemStackAmount();
+        final ItemStackAmount seenIngredients = new ItemStackAmount();
+        final List<ItemStack> results = new ArrayList<>();
+        final List<ItemStack> ingredients = new ArrayList<>();
 
-        for (ItemStack stack : ItemStackAmount.of(results).values()) {
-            long factor = StackInfo.getAmount(stack);
+        for (RecipeIngredient result : recipe.getResults()) {
+            ItemStack stack = result.getItemStack();
+            if (!seenResults.contains(stack)) {
+                seenResults.add(stack);
+                results.add(stack);
+            }
+        }
+
+        for (RecipeIngredient ingr : recipe.getIngredients()) {
+            ItemStack stack = ingr.getItemStack();
+            if (!seenIngredients.contains(stack)) {
+                seenIngredients.add(stack);
+                ingredients.add(stack);
+            }
+        }
+
+        for (ItemStack stack : results) {
             this.addItem(
-                    BookmarkItem.of(
-                            groupId,
-                            StackInfo.withAmount(stack, factor * multiplier),
-                            factor,
-                            recipeId,
-                            BookmarkItemType.RESULT),
+                    BookmarkItem.builder(groupId, stack, recipe, BookmarkItemType.RESULT).multiplier(multiplier)
+                            .build(),
                     true);
         }
 
-        for (ItemStack stack : ItemStackAmount.of(ingredients).values()) {
-            long factor = StackInfo.getAmount(stack);
+        for (ItemStack stack : ingredients) {
             this.addItem(
-                    BookmarkItem.of(
-                            groupId,
-                            StackInfo.withAmount(stack, factor * multiplier),
-                            factor,
-                            recipeId,
-                            BookmarkItemType.INGREDIENT,
-                            BookmarkItem.generatePermutations(stack, recipe)),
+                    BookmarkItem.builder(groupId, stack, recipe, BookmarkItemType.INGREDIENT).multiplier(multiplier)
+                            .build(),
                     true);
         }
     }
 
     public void removeRecipe(int itemIndex, boolean removeFullRecipe) {
-        final BookmarkItem item = getCalculatedItem(itemIndex);
+        final BookmarkItem item = getBookmarkItem(itemIndex);
 
         if (item == null) {
             return;
@@ -1133,8 +1159,8 @@ public class BookmarkGrid extends ItemsGrid<BookmarksGridSlot, BookmarkGrid.Book
             final Set<Long> sizes = new HashSet<>();
 
             for (BookmarkItem item : this.bookmarkItems) {
-                if (item.groupId == targetGroupId && item.amount > 0) {
-                    sizes.add(Math.max(item.getStackSize(), item.factor / item.fluidCellAmount));
+                if (item.groupId == targetGroupId && item.getAmount() > 0) {
+                    sizes.add(Math.max(item.getStackSize(), item.getStackSize(item.getAmount(1))));
                     items.add(item);
                 }
             }
@@ -1143,14 +1169,16 @@ public class BookmarkGrid extends ItemsGrid<BookmarksGridSlot, BookmarkGrid.Book
             long multiplier = Integer.MAX_VALUE;
 
             for (BookmarkItem item : items) {
-                long customFactor = (long) Math.ceil(item.amount / (double) gcd);
-                long customMultiplier = (long) (customFactor > 0 ? Math.ceil(item.amount / (double) customFactor) : 0);
+                final long amount = item.getAmount();
+                final long customFactor = (amount + gcd - 1) / gcd;
+                final long customMultiplier = customFactor > 0 ? ((amount + customFactor - 1) / customFactor) : 0;
                 multiplier = Math.min(shiftMultiplier(customMultiplier, shift, 1), multiplier);
             }
 
             for (BookmarkItem item : items) {
-                long customFactor = (long) Math.ceil(item.amount / (double) gcd);
-                item.amount = customFactor * multiplier;
+                final long amount = item.getAmount();
+                final long customFactor = (amount + gcd - 1) / gcd;
+                item.multiplier = item.getMultiplierFromAmount(customFactor * multiplier);
             }
         } else {
             final Map<RecipeId, Long> recipeMultipliers = new HashMap<>();
@@ -1158,7 +1186,7 @@ public class BookmarkGrid extends ItemsGrid<BookmarksGridSlot, BookmarkGrid.Book
             final List<BookmarkItem> items = new ArrayList<>();
 
             for (BookmarkItem item : this.bookmarkItems) {
-                if (item.factor > 0
+                if (!item.emptyFactor()
                         && outputRecipes.stream().anyMatch(recipeId -> item.equalsRecipe(recipeId, targetGroupId))) {
                     final long multiplier = recipeMultipliers.getOrDefault(item.recipeId, (long) Integer.MAX_VALUE);
                     final boolean recipeInMiddle = group.crafting != null
@@ -1168,7 +1196,7 @@ public class BookmarkGrid extends ItemsGrid<BookmarksGridSlot, BookmarkGrid.Book
                             item.recipeId,
                             Math.min(
                                     shiftMultiplier(
-                                            Math.max(recipeInMiddle ? 1 : 0, item.getMultiplier()),
+                                            Math.max(recipeInMiddle ? 1 : 0, item.multiplier),
                                             shift,
                                             recipeInMiddle ? 1 : 0),
                                     multiplier));
@@ -1177,7 +1205,7 @@ public class BookmarkGrid extends ItemsGrid<BookmarksGridSlot, BookmarkGrid.Book
             }
 
             for (BookmarkItem item : items) {
-                item.amount = item.factor * recipeMultipliers.getOrDefault(item.recipeId, 0L);
+                item.multiplier = recipeMultipliers.getOrDefault(item.recipeId, 0L);
             }
         }
 
@@ -1191,37 +1219,45 @@ public class BookmarkGrid extends ItemsGrid<BookmarksGridSlot, BookmarkGrid.Book
         if (group.collapsed) {
             shiftGroupAmount(targetItem.groupId, shift);
         } else if (targetItem.recipeId != null && targetItem.type != BookmarkItemType.ITEM) {
-            final RecipeId recipeId = this.gridGenerator.itemToRecipe
-                    .getOrDefault(targetItemIndex, targetItem.recipeId);
-            final boolean recipeInMiddle = group.crafting != null && group.crafting.recipeInMiddle.contains(recipeId);
-            long multiplier = Integer.MAX_VALUE;
-
-            for (BookmarkItem item : this.bookmarkItems) {
-                if (item.equalsRecipe(recipeId, targetItem.groupId) && item.factor > 0) {
-                    multiplier = Math.min(
-                            shiftMultiplier(
-                                    Math.max(recipeInMiddle ? 1 : 0, item.getMultiplier()),
-                                    shift,
-                                    recipeInMiddle ? 1 : 0),
-                            multiplier);
-                }
-            }
-
-            for (BookmarkItem item : this.bookmarkItems) {
-                if (item.equalsRecipe(recipeId, targetItem.groupId) && item.factor > 0) {
-                    item.amount = item.factor * multiplier;
-                }
-            }
-
+            shiftRecipeAmount(
+                    targetItem.groupId,
+                    this.gridGenerator.itemToRecipe.getOrDefault(targetItemIndex, targetItem.recipeId),
+                    shift);
         } else {
 
             for (BookmarkItem item : this.bookmarkItems) {
                 if (targetItem.equals(item)) {
-                    item.amount = item.factor * shiftMultiplier(item.getMultiplier(), shift, 0);
+                    item.multiplier = shiftMultiplier(item.multiplier, shift, 0);
                     break;
                 }
             }
 
+            this.onItemsChanged();
+        }
+
+    }
+
+    public void shiftRecipeAmount(int targetGroupId, RecipeId recipeId, long shift) {
+        final BookmarkGroup group = getGroup(targetGroupId);
+        final boolean recipeInMiddle = group != null && group.crafting != null
+                && group.crafting.recipeInMiddle.contains(recipeId);
+        long multiplier = Integer.MAX_VALUE;
+
+        for (BookmarkItem item : this.bookmarkItems) {
+            if (item.equalsRecipe(recipeId, targetGroupId) && !item.emptyFactor()) {
+                multiplier = Math.min(
+                        shiftMultiplier(
+                                Math.max(recipeInMiddle ? 1 : 0, item.multiplier),
+                                shift,
+                                recipeInMiddle ? 1 : 0),
+                        multiplier);
+            }
+        }
+
+        for (BookmarkItem item : this.bookmarkItems) {
+            if (item.equalsRecipe(recipeId, targetGroupId) && !item.emptyFactor()) {
+                item.multiplier = multiplier;
+            }
         }
 
         this.onItemsChanged();
@@ -1249,7 +1285,7 @@ public class BookmarkGrid extends ItemsGrid<BookmarksGridSlot, BookmarkGrid.Book
             for (BookmarksGridSlot slot : getMask()) {
                 Rectangle4i rect = getSlotRect(slot.slotIndex);
 
-                if (sortableGroup != null && slot.getGroupId() == sortableGroup.groupId) {
+                if (sortableGroup != null && sortableGroup.matches(this, slot.getGroupId())) {
                     NEIClientUtils.drawRect(rect.x, rect.y, rect.w, rect.h, DRAG_COLOR);
                 } else if (sortableItem != null && sortableItem.items.contains(slot.itemIndex)) {
                     NEIClientUtils.drawRect(rect.x, rect.y, rect.w, rect.h, DRAG_COLOR);
@@ -1278,7 +1314,7 @@ public class BookmarkGrid extends ItemsGrid<BookmarksGridSlot, BookmarkGrid.Book
             final SortableItem sortableItem = LayoutManager.bookmarkPanel.sortableItem;
 
             for (BookmarksGridSlot slot : getMask()) {
-                if ((sortableGroup == null || slot.getGroupId() != sortableGroup.groupId)
+                if ((sortableGroup == null || !sortableGroup.matches(this, slot.getGroupId()))
                         && (sortableItem == null || !sortableItem.items.contains(slot.itemIndex))) {
                     slot.afterDraw(getSlotRect(slot.slotIndex), mouseContext);
                 }
@@ -1295,7 +1331,7 @@ public class BookmarkGrid extends ItemsGrid<BookmarksGridSlot, BookmarkGrid.Book
 
         for (BookmarksGridSlot slot : getMask()) {
 
-            if ((sortableGroup == null || slot.getGroupId() != sortableGroup.groupId)
+            if ((sortableGroup == null || !sortableGroup.matches(this, slot.getGroupId()))
                     && (sortableItem == null || !sortableItem.items.contains(slot.itemIndex))) {
                 final BookmarkItem item = slot.getBookmarkItem();
 

src/main/java/codechicken/nei/bookmark/BookmarkGridGenerator.java

@@ -66,10 +66,14 @@ public class BookmarkGridGenerator {
         while (itemIndex < size && absoluteSlotIndex != -1) {
             final BookmarkItem bookmarkItem = this.grid.getBookmarkItem(itemIndex);
             final BookmarkGroup group = this.grid.getGroup(bookmarkItem.groupId);
+            final boolean isCollapsedRecipeAnchor = group.crafting != null && bookmarkItem.recipeId != null
+                    && bookmarkItem.type != BookmarkItemType.INGREDIENT
+                    && group.collapsedRecipes.contains(bookmarkItem.recipeId);
 
-            if (group.crafting != null && (!group.crafting.calculatedItems.containsKey(itemIndex)
-                    || bookmarkItem.recipeId != null && !bookmarkItem.recipeId
-                            .equals(group.crafting.itemToRecipe.getOrDefault(itemIndex, bookmarkItem.recipeId)))) {
+            if (group.crafting != null && !isCollapsedRecipeAnchor
+                    && (!group.crafting.calculatedItems.containsKey(itemIndex)
+                            || bookmarkItem.recipeId != null && !bookmarkItem.recipeId.equals(
+                                    group.crafting.itemToRecipe.getOrDefault(itemIndex, bookmarkItem.recipeId)))) {
                 itemIndex++;
             } else if (group.collapsed) {
                 final List<Integer> results = getGroupResults(bookmarkItem.groupId, itemIndex, size);
@@ -189,13 +193,11 @@ public class BookmarkGridGenerator {
         for (int shadowIndex : shadows) {
             final boolean isIngredient = shadows.get(0) != shadowIndex
                     || group.crafting.calculatedItems.get(shadowIndex).calculatedType == CalculatedType.INGREDIENT;
-            final BookmarkItem shadowBookmarkItem = BookmarkItem.of(
-                    bookmarkItem.groupId,
-                    bookmarkItem.itemStack,
-                    1,
-                    bookmarkItem.recipeId,
-                    isIngredient ? BookmarkItemType.INGREDIENT : BookmarkItemType.RESULT,
-                    Collections.emptyMap());
+
+            final BookmarkItem shadowBookmarkItem = BookmarkItem.builder(bookmarkItem.groupId, bookmarkItem.itemStack)
+                    .multiplier(1).factor(StackInfo.getAmount(bookmarkItem.itemStack)).recipeId(bookmarkItem.recipeId)
+                    .type(isIngredient ? BookmarkItemType.INGREDIENT : BookmarkItemType.RESULT)
+                    .permutations(Collections.emptyMap()).build();
 
             if ((absoluteSlotIndex = nextSlotIndex(
                     absoluteSlotIndex + 1,
@@ -228,7 +230,7 @@ public class BookmarkGridGenerator {
         index = Math.max(0, index);
 
         while (j++ < maxIndex) {
-            boolean isFirstColumn = (index % gridColumns) == 0;
+            final boolean isFirstColumn = (index % gridColumns) == 0;
 
             if (this.grid.isInvalidSlot(index % maxIndex)) {
                 index++;
@@ -239,7 +241,7 @@ public class BookmarkGridGenerator {
                 return index;
             } else if (isFirstColumn && (meta.recipeId == null || previousMeta == null
                     || previousMeta.groupId != meta.groupId
-                    || meta.type == BookmarkItemType.ITEM
+                    || meta.type != BookmarkItemType.INGREDIENT
                     || !meta.recipeId.equals(previousMeta.recipeId)
                     || index + 1 < maxIndex && this.grid.isInvalidSlot((index + 1) % maxIndex))) {
                         // In first column must be an item without recipe, a recipe result, or an ingredient
@@ -248,6 +250,7 @@ public class BookmarkGridGenerator {
                     } else
                 if (!isFirstColumn && meta.type != BookmarkItemType.ITEM
                         && previousMeta.type != BookmarkItemType.ITEM
+                        && meta.groupId == previousMeta.groupId
                         && meta.recipeId != null
                         && meta.recipeId.equals(previousMeta.recipeId)) {
                             return index;
@@ -319,7 +322,7 @@ public class BookmarkGridGenerator {
             return group.crafting.calculatedItems.get(itemIndex);
         } else {
             BookmarkChainItem item = BookmarkChainItem.of(this.grid.getBookmarkItem(itemIndex));
-            item.setRealAmount(item.getShiftAmount());
+            item.setRealMultiplier(item.getCalculatedMultiplier());
             return item;
         }
     }
@@ -332,22 +335,24 @@ public class BookmarkGridGenerator {
             return new BookmarksGridSlot(
                     slotIndex,
                     itemIndex,
-                    chainItem.getRealAmount(),
+                    chainItem.getRealMultiplier(),
                     0,
                     0,
                     chainItem.getItem(),
                     null,
-                    group);
+                    group,
+                    this.grid);
         } else {
             return new BookmarksGridSlot(
                     slotIndex,
                     itemIndex,
-                    chainItem.getRealAmount(),
+                    chainItem.getRealMultiplier(),
                     chainItem.getShiftAmount(),
-                    chainItem.getCalculatedAmount(),
+                    chainItem.getCalculatedMultiplier(),
                     chainItem.getItem(),
                     chainItem.calculatedType,
-                    group);
+                    group,
+                    this.grid);
         }
     }
 

src/main/java/codechicken/nei/bookmark/BookmarkItem.java

@@ -2,6 +2,7 @@ package codechicken.nei.bookmark;
 
 import java.util.Collections;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 import java.util.Objects;
 
@@ -9,14 +10,160 @@ import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraftforge.fluids.FluidStack;
 
+import com.google.gson.JsonObject;
+import com.google.gson.JsonPrimitive;
+
 import codechicken.nei.NEIClientUtils;
+import codechicken.nei.PositionedStack;
 import codechicken.nei.recipe.Recipe;
 import codechicken.nei.recipe.Recipe.RecipeId;
 import codechicken.nei.recipe.Recipe.RecipeIngredient;
 import codechicken.nei.recipe.StackInfo;
+import codechicken.nei.util.NBTJson;
 
 public class BookmarkItem {
 
+    public static class Builder {
+
+        private static Map<ItemStack, String> fuzzyPermutations = new HashMap<>();
+
+        private final int groupId;
+        private final ItemStack stack;
+        private long factor;
+        private long multiplier = -1;
+        private long chance = PositionedStack.CHANCE_FULL;
+        private RecipeId recipeId = null;
+        private Recipe recipe = null;
+        private BookmarkItemType type = BookmarkItemType.ITEM;
+        private Map<String, ItemStack> permutations = null;
+
+        private Builder(int groupId, ItemStack stack) {
+            final NBTTagCompound nbTag = StackInfo.itemStackToNBT(stack);
+
+            this.groupId = groupId;
+            this.stack = stack;
+            this.factor = StackInfo.isFluidDisplayItem(stack) ? Math.max(nbTag.getInteger("Count"), 1) : 1;
+        }
+
+        public Builder factor(long factor) {
+            this.factor = factor;
+            return this;
+        }
+
+        public Builder multiplier(long multiplier) {
+            this.multiplier = multiplier;
+            return this;
+        }
+
+        public Builder chance(long chance) {
+            this.chance = chance;
+            return this;
+        }
+
+        public Builder recipe(Recipe recipe) {
+            this.recipe = recipe;
+            this.recipeId = null;
+            return this;
+        }
+
+        public Builder recipeId(RecipeId recipeId) {
+            this.recipeId = recipeId;
+            this.recipe = null;
+            return this;
+        }
+
+        public Builder type(BookmarkItemType type) {
+            this.type = type;
+            return this;
+        }
+
+        public Builder permutations(Map<String, ItemStack> permutations) {
+            this.permutations = permutations;
+            return this;
+        }
+
+        public BookmarkItem build() {
+            final Map<String, ItemStack> perms;
+            long multiplier = 0;
+
+            if (this.permutations != null) {
+                perms = this.permutations;
+            } else if (this.type == BookmarkItemType.INGREDIENT) {
+
+                if (this.recipe != null) {
+                    perms = Builder.generatePermutations(this.stack, this.recipe);
+                } else if (this.recipeId != null) {
+                    perms = Builder.generatePermutations(this.stack, Recipe.of(this.recipeId));
+                } else {
+                    perms = Builder.generatePermutations(this.stack);
+                }
+
+            } else {
+                perms = Builder.generatePermutations(this.stack);
+            }
+
+            if (this.multiplier >= 0) {
+                multiplier = this.multiplier;
+            } else if (this.factor > 0) {
+                multiplier = StackInfo.getAmount(this.stack) / this.factor;
+            }
+
+            return new BookmarkItem(
+                    this.groupId,
+                    multiplier,
+                    this.factor,
+                    this.chance,
+                    this.stack,
+                    perms,
+                    this.recipeId != null ? this.recipeId : this.recipe != null ? this.recipe.getRecipeId() : null,
+                    this.type);
+        }
+
+        public static Map<String, ItemStack> generatePermutations(ItemStack stack) {
+            return Collections.singletonMap(getItemGUID(stack), stack);
+        }
+
+        public static Map<String, ItemStack> generatePermutations(ItemStack stack, Recipe recipe) {
+
+            if (recipe != null) {
+                final RecipeIngredient ingr = recipe.getIngredients().stream()
+                        .filter(ingredient -> ingredient.contains(stack)).findAny().orElse(null);
+
+                if (ingr != null) {
+                    final Map<String, ItemStack> permutations = new HashMap<>();
+                    for (ItemStack ingrStack : ingr.getPermutations()) {
+                        permutations.put(getItemGUID(ingrStack), ingrStack);
+                    }
+                    return permutations;
+                }
+            }
+
+            return generatePermutations(stack);
+        }
+
+        private static synchronized String getItemGUID(ItemStack stack) {
+            final FluidStack fluidStack = StackInfo.getFluid(stack);
+
+            if (fluidStack != null && (fluidStack.amount > 0 || !StackInfo.isFluidContainer(stack))) {
+                return fluidStack.getFluid().getName() + ":" + fluidStack.tag;
+            } else {
+
+                for (Map.Entry<ItemStack, String> entry : Builder.fuzzyPermutations.entrySet()) {
+                    if (NEIClientUtils.areStacksSameTypeCraftingWithNBT(stack, entry.getKey())) {
+                        Builder.fuzzyPermutations.put(stack, entry.getValue());
+                        return entry.getValue();
+                    }
+                }
+
+                final String stackGUID = StackInfo.getItemStackGUID(stack);
+                Builder.fuzzyPermutations.put(stack, stackGUID);
+
+                return stackGUID;
+            }
+        }
+
+    }
+
     public enum BookmarkItemType {
 
         INGREDIENT,
@@ -32,150 +179,238 @@ public class BookmarkItem {
         }
     }
 
-    private static Map<ItemStack, String> fuzzyPermutations = new HashMap<>();
-
     public int groupId;
 
-    public long amount = 0L;
-    public final int fluidCellAmount;
     public ItemStack itemStack;
     public Map<String, ItemStack> permutations;
 
-    public long factor;
     public RecipeId recipeId;
     public BookmarkItemType type = BookmarkItemType.ITEM;
 
-    protected BookmarkItem(int groupId, long amount, int fluidCellAmount, ItemStack itemStack,
-            Map<String, ItemStack> permutations, long factor, RecipeId recipeId, BookmarkItemType type) {
+    public long multiplier = 1L;
+    public final long factor;
+    public final int fluidCellAmount;
+    public final long chance;
+
+    protected BookmarkItem(int groupId, long multiplier, long factor, long chance, ItemStack itemStack,
+            Map<String, ItemStack> permutations, RecipeId recipeId, BookmarkItemType type) {
+        final FluidStack fluidStack = StackInfo.getFluid(itemStack);
+
+        if (fluidStack != null) {
+            this.fluidCellAmount = Math.max(1, StackInfo.isFluidContainer(itemStack) ? fluidStack.amount : 1);
+        } else {
+            this.fluidCellAmount = 1;
+        }
+
         this.groupId = groupId;
 
-        this.amount = amount;
-        this.fluidCellAmount = fluidCellAmount;
         this.itemStack = itemStack;
         this.permutations = permutations;
 
-        this.factor = factor;
         this.recipeId = recipeId;
         this.type = type == null ? BookmarkItemType.ITEM : type;
+
+        this.multiplier = multiplier;
+        this.factor = factor;
+        this.chance = chance;
     }
 
-    public static BookmarkItem of(int groupId, ItemStack stack, long factor, RecipeId recipeId, BookmarkItemType type,
-            Map<String, ItemStack> permutations) {
-        final FluidStack fluidStack = StackInfo.getFluid(stack);
-        int fluidCellAmount = 1;
-        long amount;
+    public static Builder builder(int groupId, ItemStack stack) {
+        return new Builder(groupId, stack);
+    }
 
-        if (fluidStack != null) {
-            amount = fluidStack.amount * (long) Math.max(0, stack.stackSize);
-            fluidCellAmount = Math.max(1, StackInfo.isFluidContainer(stack) ? fluidStack.amount : 1);
-        } else {
-            amount = StackInfo.getAmount(stack);
+    public static Builder builder(BookmarkItem item) {
+        return new Builder(item.groupId, item.itemStack).factor(item.factor).multiplier(item.multiplier)
+                .chance(item.chance).recipeId(item.recipeId).type(item.type).permutations(item.permutations);
+    }
+
+    public static Builder builder(int groupId, ItemStack stack, Recipe recipe, BookmarkItemType type) {
+        final List<RecipeIngredient> items = type == BookmarkItemType.RESULT ? recipe.getResults()
+                : recipe.getIngredients();
+        final Builder builder = builder(groupId, stack).type(type).recipe(recipe);
+        final ItemStack emptyStack = StackInfo.withAmount(stack, 0);
+        long amount = 0;
+
+        for (RecipeIngredient res : items) {
+            for (ItemStack perm : res.getPermutations()) {
+                if (NEIClientUtils.areStacksSameTypeWithNBT(emptyStack, StackInfo.withAmount(perm, 0))) {
+                    amount += 1L * StackInfo.getAmount(perm) * res.getChance();
+                    break;
+                }
+            }
         }
 
-        return new BookmarkItem(
-                groupId,
-                amount,
-                fluidCellAmount,
-                stack,
-                permutations,
-                factor * fluidCellAmount,
-                recipeId,
-                type);
-    }
+        if ((amount % PositionedStack.CHANCE_FULL) == 0) {
+            builder.factor(amount / PositionedStack.CHANCE_FULL);
+        } else {
+            builder.factor(1).chance(amount);
+        }
 
-    public static BookmarkItem of(int groupId, ItemStack stack, long factor, RecipeId recipeId, BookmarkItemType type) {
-        return of(
-                groupId,
-                stack,
-                factor,
-                recipeId,
-                type,
-                generatePermutations(stack, recipeId, type == BookmarkItemType.INGREDIENT));
+        return builder;
     }
 
     public static BookmarkItem of(int groupId, ItemStack stack) {
-        final NBTTagCompound nbTag = StackInfo.itemStackToNBT(stack);
-        final long factor = nbTag.hasKey("gtFluidName") ? Math.min(144, nbTag.getInteger("Count")) : 1;
-        return BookmarkItem.of(
-                groupId,
-                stack,
-                factor,
-                null,
-                BookmarkItemType.ITEM,
-                Collections.singletonMap(getItemGUID(stack), stack));
+        return builder(groupId, stack).build();
     }
 
-    public BookmarkItem copyWithAmount(long amount) {
+    public static BookmarkItem of(JsonObject jsonObject) {
+        final NBTTagCompound itemStackNBT = (NBTTagCompound) NBTJson.toNbt(jsonObject.get("item"));
+        final ItemStack itemStack = StackInfo.loadFromNBT(itemStackNBT);
+
+        if (itemStack != null) {
+            final int groupId = jsonObject.has("groupId") ? jsonObject.get("groupId").getAsInt()
+                    : BookmarkGrid.DEFAULT_GROUP_ID;
+            final BookmarkItem.Builder builder = BookmarkItem.builder(groupId, itemStack);
+
+            if (jsonObject.has("type")) {
+                builder.type(BookmarkItemType.fromInt(jsonObject.get("type").getAsInt()));
+            } else if (jsonObject.has("ingredient") && jsonObject.get("ingredient").getAsBoolean()) {
+                builder.type(BookmarkItemType.INGREDIENT);
+            } else {
+                builder.type(BookmarkItemType.RESULT);
+            }
+
+            if (jsonObject.has("multiplier")) {
+                builder.multiplier(jsonObject.get("multiplier").getAsInt());
+            }
+
+            if (jsonObject.has("factor")) {
+                builder.factor(jsonObject.get("factor").getAsInt());
+            }
+
+            if (jsonObject.has("chance")) {
+                builder.chance(jsonObject.get("chance").getAsInt());
+            }
+
+            if (jsonObject.get("recipeId") instanceof JsonObject recipeJson) {
+                builder.recipeId(RecipeId.of(recipeJson));
+            }
+
+            return builder.build();
+        }
+
+        return null;
+    }
+
+    public BookmarkItem copyWithMultiplier(long multiplier) {
         return new BookmarkItem(
                 this.groupId,
-                amount,
-                this.fluidCellAmount,
+                multiplier,
+                this.factor,
+                this.chance,
                 this.itemStack,
                 this.permutations,
-                this.factor,
                 this.recipeId,
                 this.type);
     }
 
+    public BookmarkItem copyWithAmount(long amount) {
+        return copyWithMultiplier(getMultiplierFromAmount(amount));
+    }
+
     public BookmarkItem copy() {
-        return copyWithAmount(this.amount);
+        return copyWithMultiplier(this.multiplier);
     }
 
-    public static Map<String, ItemStack> generatePermutations(ItemStack stack, RecipeId recipeId,
-            boolean isIngredient) {
+    public BookmarkItem copyWithPerm(ItemStack stack) {
 
-        if (isIngredient && recipeId != null) {
-            return generatePermutations(stack, Recipe.of(recipeId));
-        }
+        if (this.recipeId != null
+                && !NEIClientUtils.areStacksSameTypeWithNBT(StackInfo.withAmount(stack, 0), this.getItemStack(0))) {
+            final ItemStack oldPerm = findPermutation(this.itemStack);
+            final ItemStack newPerm = findPermutation(stack);
 
-        return Collections.singletonMap(getItemGUID(stack), stack);
-    }
+            if (oldPerm != null && newPerm != null) {
+                final long oldAmount = StackInfo.getAmount(oldPerm);
+                final long amount = oldAmount > 0 ? this.factor * this.chance * StackInfo.getAmount(newPerm) / oldAmount
+                        : 0;
+                final long factor = (amount % PositionedStack.CHANCE_FULL) == 0 ? amount / PositionedStack.CHANCE_FULL
+                        : 1;
+                final long chance = factor == 1 ? amount : PositionedStack.CHANCE_FULL;
 
-    public static Map<String, ItemStack> generatePermutations(ItemStack stack, Recipe recipe) {
-
-        if (recipe != null) {
-            final RecipeIngredient ingr = recipe.getIngredients().stream()
-                    .filter(ingredient -> ingredient.contains(stack)).findAny().orElse(null);
-
-            if (ingr != null) {
-                final Map<String, ItemStack> permutations = new HashMap<>();
-                for (ItemStack ingrStack : ingr.getPermutations()) {
-                    permutations.put(getItemGUID(ingrStack), ingrStack);
-                }
-                return permutations;
+                return new BookmarkItem(
+                        this.groupId,
+                        this.multiplier,
+                        factor,
+                        chance,
+                        newPerm,
+                        this.permutations,
+                        this.recipeId,
+                        this.type);
             }
         }
 
-        return Collections.singletonMap(getItemGUID(stack), stack);
+        return copy();
     }
 
-    private static synchronized String getItemGUID(ItemStack stack) {
-        final FluidStack fluidStack = StackInfo.getFluid(stack);
+    private ItemStack findPermutation(ItemStack stack) {
 
-        if (fluidStack != null) {
-            return fluidStack.getFluid().getName() + ":" + fluidStack.tag;
-        } else {
-
-            for (Map.Entry<ItemStack, String> entry : BookmarkItem.fuzzyPermutations.entrySet()) {
-                if (NEIClientUtils.areStacksSameTypeCraftingWithNBT(stack, entry.getKey())) {
-                    BookmarkItem.fuzzyPermutations.put(stack, entry.getValue());
-                    return entry.getValue();
-                }
+        for (ItemStack itemStack : this.permutations.values()) {
+            if (StackInfo.equalItemAndNBT(stack, itemStack, true)) {
+                return itemStack;
             }
-
-            final String stackGUID = StackInfo.getItemStackGUID(stack);
-            BookmarkItem.fuzzyPermutations.put(stack, stackGUID);
-
-            return stackGUID;
         }
+
+        return null;
     }
 
     public boolean containsItems(BookmarkItem item) {
         return this.permutations.keySet().stream().anyMatch(item.permutations::containsKey);
     }
 
+    public long getAmount() {
+        return getAmount(this.multiplier);
+    }
+
+    public long getAmount(long multiplier, ItemStack perm) {
+
+        if (this.recipeId != null && perm != null
+                && !NEIClientUtils.areStacksSameTypeWithNBT(StackInfo.withAmount(perm, 0), this.getItemStack(0))) {
+            final ItemStack oldPerm = findPermutation(this.itemStack);
+            final ItemStack newPerm = findPermutation(perm);
+
+            if (oldPerm != null && newPerm != null) {
+                final long oldAmount = StackInfo.getAmount(oldPerm);
+                final long amount = oldAmount > 0 ? this.factor * this.chance * StackInfo.getAmount(newPerm) / oldAmount
+                        : 0;
+                final long factor = (amount % PositionedStack.CHANCE_FULL) == 0 ? amount / PositionedStack.CHANCE_FULL
+                        : 1;
+                final long chance = factor == 1 ? amount : PositionedStack.CHANCE_FULL;
+
+                return getAmount(multiplier, factor, chance);
+            }
+        }
+
+        return getAmount(multiplier);
+    }
+
+    public long getAmount(long multiplier) {
+        return getAmount(multiplier, this.factor, this.chance);
+    }
+
+    protected long getAmount(long multiplier, long factor, long chance) {
+        long amount = factor * multiplier;
+
+        if (this.fluidCellAmount > 1) {
+            amount = amount * this.fluidCellAmount;
+        }
+
+        if (chance != PositionedStack.CHANCE_FULL) {
+
+            if (this.type == BookmarkItemType.INGREDIENT) {
+                // For ingredients, round up the expected amount to be conservative.
+                return (amount * chance + PositionedStack.CHANCE_FULL - 1) / PositionedStack.CHANCE_FULL;
+            } else {
+                // For results, round down the expected amount to be conservative.
+                return (amount * chance) / PositionedStack.CHANCE_FULL;
+            }
+
+        }
+
+        return amount;
+    }
+
     public ItemStack getItemStack() {
-        return getItemStack(this.amount);
+        return getItemStack(getAmount());
     }
 
     public ItemStack getItemStack(long amount) {
@@ -183,23 +418,34 @@ public class BookmarkItem {
     }
 
     public long getStackSize() {
-        return getStackSize(this.amount);
+        return getStackSize(getAmount());
     }
 
     public long getStackSize(long amount) {
-        return (long) (this.factor > 0 ? Math.ceil(amount / (double) this.fluidCellAmount) : 0);
+
+        if (this.fluidCellAmount > 1) {
+            amount = (amount + this.fluidCellAmount - 1) / this.fluidCellAmount;
+        }
+
+        return amount;
+    }
+
+    public long getMultiplierFromAmount(long amount) {
+        if (this.factor <= 0 || this.chance <= 0) return 0;
+
+        if (this.fluidCellAmount > 1) {
+            amount = (amount + this.fluidCellAmount - 1) / this.fluidCellAmount;
+        }
+
+        if (this.chance == PositionedStack.CHANCE_FULL) {
+            return (amount + this.factor - 1) / this.factor;
+        }
+
+        return (amount * PositionedStack.CHANCE_FULL + this.factor * this.chance - 1) / (this.factor * this.chance);
     }
 
     public long getMultiplier() {
-        return getMultiplier(this.amount);
-    }
-
-    public long getMultiplier(long amount) {
-        return (long) (this.factor > 0 ? Math.ceil(amount / (double) this.factor) : 0);
-    }
-
-    public long getFactor() {
-        return this.factor / this.fluidCellAmount;
+        return this.multiplier;
     }
 
     public boolean equalsRecipe(BookmarkItem meta) {
@@ -210,6 +456,10 @@ public class BookmarkItem {
         return groupId == this.groupId && recipeId != null && recipeId.equals(this.recipeId);
     }
 
+    public boolean emptyFactor() {
+        return this.factor <= 0 || this.chance <= 0;
+    }
+
     @Override
     public int hashCode() {
         return Objects.hash(this.groupId, this.fluidCellAmount, this.type.toInt(), this.recipeId);
@@ -228,4 +478,27 @@ public class BookmarkItem {
         return false;
     }
 
+    public JsonObject toJsonObject() {
+        final JsonObject jsonObject = new JsonObject();
+
+        jsonObject.add("item", NBTJson.toJsonObject(StackInfo.itemStackToNBT(getItemStack())));
+        jsonObject.add("multiplier", new JsonPrimitive(this.multiplier));
+        jsonObject.add("factor", new JsonPrimitive(this.factor));
+        jsonObject.add("type", new JsonPrimitive(this.type.toInt()));
+
+        if (this.groupId != BookmarkGrid.DEFAULT_GROUP_ID) {
+            jsonObject.add("groupId", new JsonPrimitive(this.groupId));
+        }
+
+        if (this.recipeId != null) {
+            jsonObject.add("recipeId", this.recipeId.toJsonObject());
+        }
+
+        if (this.chance != PositionedStack.CHANCE_FULL) {
+            jsonObject.add("chance", new JsonPrimitive(this.chance));
+        }
+
+        return jsonObject;
+    }
+
 }

src/main/java/codechicken/nei/bookmark/BookmarkPayload.java

@@ -0,0 +1,283 @@
+package codechicken.nei.bookmark;
+
+import java.awt.Point;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.nbt.NBTTagList;
+
+import com.google.gson.JsonObject;
+
+import codechicken.lib.gui.GuiDraw;
+import codechicken.nei.BookmarkPanel.BookmarkViewMode;
+import codechicken.nei.ItemPanels;
+import codechicken.nei.ItemQuantityField;
+import codechicken.nei.ItemStackSet;
+import codechicken.nei.bookmark.BookmarkItem.BookmarkItemType;
+import codechicken.nei.recipe.Recipe;
+import codechicken.nei.recipe.Recipe.RecipeId;
+import codechicken.nei.recipe.Recipe.RecipeIngredient;
+import codechicken.nei.recipe.StackInfo;
+import codechicken.nei.util.NBTJson;
+
+public class BookmarkPayload {
+
+    private String linkType;
+    private NBTTagCompound target;
+
+    private NBTTagCompound group;
+
+    private NBTTagList items = new NBTTagList();
+    private NBTTagList recipes = new NBTTagList();
+
+    private BookmarkPayload(String linkType, ItemStack stack) {
+        this.linkType = linkType;
+        this.target = stack != null ? StackInfo.itemStackToNBT(stack) : null;
+    }
+
+    public static BookmarkPayload of(NBTTagCompound nbt) {
+        final BookmarkPayload payload = new BookmarkPayload(nbt.getString("linkType"), null);
+
+        if (nbt.hasKey("item")) {
+            payload.target = nbt.getCompoundTag("item");
+        }
+
+        if (nbt.hasKey("group")) {
+            payload.group = nbt.getCompoundTag("group");
+        }
+
+        payload.items = nbt.getTagList("items", 10);
+        payload.recipes = nbt.getTagList("recipes", 10);
+
+        return payload;
+    }
+
+    public static BookmarkPayload of(BookmarkItem item) {
+        final BookmarkPayload payload = new BookmarkPayload("recipe", item.getItemStack());
+        final BookmarkGrid grid = ItemPanels.bookmarkPanel.getGrid();
+        final Map<RecipeId, Integer> recipesIndexes = new HashMap<>();
+        final RecipeId recipeId = item.recipeId;
+        final int groupId = item.groupId;
+
+        payload.items = new NBTTagList();
+        payload.recipes = new NBTTagList();
+
+        if (recipeId != null) {
+
+            for (int itemIndex = 0; itemIndex < grid.size(); itemIndex++) {
+                final BookmarkItem currentItem = grid.getBookmarkItem(itemIndex);
+
+                if (currentItem != null && currentItem.groupId == groupId && recipeId.equals(currentItem.recipeId)) {
+                    addBookmarkItemToPayload(payload, currentItem, recipesIndexes);
+                }
+
+            }
+
+        } else {
+            addBookmarkItemToPayload(payload, item, recipesIndexes);
+        }
+
+        return payload;
+    }
+
+    public static BookmarkPayload of(Recipe recipe) {
+        final BookmarkPayload payload = new BookmarkPayload("recipe", recipe.getResult());
+        final Map<RecipeId, Integer> recipesIndexes = new HashMap<>();
+        final ItemStackSet seenIngredients = new ItemStackSet();
+        final ItemStackSet seenResults = new ItemStackSet();
+
+        for (RecipeIngredient result : recipe.getResults()) {
+            ItemStack stack = result.getItemStack();
+            if (!seenResults.contains(stack)) {
+                final BookmarkItem item = BookmarkItem.builder(-1, stack, recipe, BookmarkItemType.RESULT).build();
+                addBookmarkItemToPayload(payload, item, recipesIndexes);
+                seenResults.add(stack);
+            }
+        }
+
+        for (RecipeIngredient ingr : recipe.getIngredients()) {
+            ItemStack stack = ingr.getItemStack();
+            if (!seenIngredients.contains(stack)) {
+                final BookmarkItem item = BookmarkItem.builder(-1, stack, recipe, BookmarkItemType.INGREDIENT).build();
+                addBookmarkItemToPayload(payload, item, recipesIndexes);
+                seenIngredients.add(stack);
+            }
+        }
+
+        return payload;
+    }
+
+    public static BookmarkPayload of(int groupId) {
+        final BookmarkPayload payload = new BookmarkPayload("group", null);
+        final Map<RecipeId, Integer> recipesIndexes = new HashMap<>();
+        final BookmarkGrid grid = ItemPanels.bookmarkPanel.getGrid();
+
+        for (int itemIndex = 0; itemIndex < grid.size(); itemIndex++) {
+            final BookmarkItem item = grid.getBookmarkItem(itemIndex);
+
+            if (item != null && item.groupId == groupId) {
+                addBookmarkItemToPayload(payload, item, recipesIndexes);
+            }
+        }
+
+        payload.group = generateGroup(grid.getGroup(groupId));
+
+        return payload;
+    }
+
+    public static BookmarkPayload of(ItemStack stackover, RecipeId recipeId) {
+        final BookmarkPayload payload = new BookmarkPayload("item", stackover);
+        final Map<RecipeId, Integer> recipesIndexes = new HashMap<>();
+        final Point mousePos = GuiDraw.getMousePosition();
+
+        if (ItemPanels.itemPanel.containsWithSubpanels(mousePos.x, mousePos.y)) {
+            stackover = ItemQuantityField.prepareStackWithQuantity(stackover, 0);
+        }
+
+        final BookmarkItem item = BookmarkItem.builder(-1, stackover).recipeId(recipeId).type(BookmarkItemType.ITEM)
+                .build();
+
+        addBookmarkItemToPayload(payload, item, recipesIndexes);
+
+        return payload;
+    }
+
+    private static NBTTagCompound generateGroup(BookmarkGroup group) {
+        final NBTTagCompound groupTag = new NBTTagCompound();
+        final NBTTagList collapsedRecipes = new NBTTagList();
+
+        groupTag.setString("viewmode", group.viewMode.toString());
+        groupTag.setBoolean("crafting", group.crafting != null);
+        groupTag.setBoolean("collapsed", group.collapsed);
+
+        for (RecipeId recipeId : group.collapsedRecipes) {
+            collapsedRecipes.appendTag(NBTJson.toNbt(recipeId.toJsonObject()));
+        }
+
+        groupTag.setTag("collapsedRecipes", collapsedRecipes);
+
+        return groupTag;
+    }
+
+    private static void addBookmarkItemToPayload(BookmarkPayload payload, BookmarkItem item,
+            Map<RecipeId, Integer> recipesIndexes) {
+        final JsonObject itemTag = item.toJsonObject();
+        itemTag.remove("groupId");
+
+        if (item.recipeId != null) {
+            final int recipeIndex = recipesIndexes
+                    .computeIfAbsent(item.recipeId, recipeId -> addRecipeToPayload(payload, recipeId, recipesIndexes));
+            itemTag.addProperty("recipeId", recipeIndex);
+        }
+
+        payload.items.appendTag(NBTJson.toNbt(itemTag));
+    }
+
+    private static int addRecipeToPayload(BookmarkPayload payload, RecipeId recipeId,
+            Map<RecipeId, Integer> recipesIndexes) {
+        final NBTTagCompound recipeTag = new NBTTagCompound();
+        final int recipeIndex = payload.recipes.tagCount();
+
+        recipeTag.setTag("recipeId", NBTJson.toNbt(recipeId.toJsonObject()));
+        recipeTag.setInteger("recipeIndex", recipeIndex);
+        payload.recipes.appendTag(recipeTag);
+
+        return recipeIndex;
+    }
+
+    public NBTTagCompound toNBT() {
+        final NBTTagCompound payloadTag = new NBTTagCompound();
+        payloadTag.setString("linkType", linkType);
+
+        if (target != null) {
+            payloadTag.setTag("item", target);
+        }
+
+        if (group != null) {
+            payloadTag.setTag("group", group);
+        }
+
+        payloadTag.setTag("items", items);
+        payloadTag.setTag("recipes", recipes);
+
+        return payloadTag;
+    }
+
+    public String getLinkType() {
+        return this.linkType;
+    }
+
+    public ItemStack getTargetStack() {
+        return this.target != null ? StackInfo.loadFromNBT(this.target) : null;
+    }
+
+    public BookmarkGroup getGroup() {
+        if (this.group == null) {
+            return null;
+        }
+
+        final boolean crafting = this.group.hasKey("crafting") && this.group.getBoolean("crafting");
+        final BookmarkViewMode viewMode;
+
+        if (this.group.hasKey("viewmode")) {
+            viewMode = BookmarkViewMode.valueOf(this.group.getString("viewmode"));
+        } else {
+            viewMode = BookmarkViewMode.TODO_LIST;
+        }
+
+        final BookmarkGroup group = new BookmarkGroup(viewMode, crafting);
+
+        if (this.group.hasKey("collapsed")) {
+            group.collapsed = this.group.getBoolean("collapsed");
+        }
+
+        if (this.group.hasKey("collapsedRecipes")) {
+            final NBTTagList collapsedRecipes = this.group.getTagList("collapsedRecipes", 10);
+
+            for (int i = 0; i < collapsedRecipes.tagCount(); i++) {
+                final NBTTagCompound recipeTag = collapsedRecipes.getCompoundTagAt(i);
+                final RecipeId recipeId = RecipeId.of((JsonObject) NBTJson.toJsonObject(recipeTag));
+                group.collapsedRecipes.add(recipeId);
+            }
+        }
+
+        return group;
+    }
+
+    public List<BookmarkItem> getBookmarkItems(int groupId) {
+        final List<BookmarkItem> bookmarkItems = new ArrayList<>();
+        final Map<Integer, RecipeId> recipesMap = new HashMap<>();
+
+        for (int i = 0; i < recipes.tagCount(); i++) {
+            final NBTTagCompound recipeTag = recipes.getCompoundTagAt(i);
+            final RecipeId recipeId = RecipeId
+                    .of((JsonObject) NBTJson.toJsonObject(recipeTag.getCompoundTag("recipeId")));
+            recipesMap.put(recipeTag.getInteger("recipeIndex"), recipeId);
+        }
+
+        for (int i = 0; i < items.tagCount(); i++) {
+            final NBTTagCompound itemTag = items.getCompoundTagAt(i);
+            RecipeId recipeId = null;
+
+            if (itemTag.hasKey("recipeId")) {
+                recipeId = recipesMap.get(itemTag.getInteger("recipeId"));
+                itemTag.removeTag("recipeId");
+            }
+
+            final BookmarkItem item = BookmarkItem.of((JsonObject) NBTJson.toJsonObject(itemTag));
+
+            if (item != null) {
+                item.groupId = groupId;
+                item.recipeId = recipeId;
+                bookmarkItems.add(item);
+            }
+        }
+
+        return bookmarkItems;
+    }
+
+}

src/main/java/codechicken/nei/bookmark/BookmarkStorage.java

@@ -10,7 +10,6 @@ import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 
-import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagCompound;
 
 import org.apache.commons.io.IOUtils;
@@ -24,10 +23,9 @@ import com.google.gson.JsonPrimitive;
 import com.google.gson.JsonSyntaxException;
 
 import codechicken.nei.BookmarkPanel.BookmarkViewMode;
+import codechicken.nei.ItemPanels;
 import codechicken.nei.NEIClientConfig;
-import codechicken.nei.bookmark.BookmarkItem.BookmarkItemType;
 import codechicken.nei.recipe.Recipe.RecipeId;
-import codechicken.nei.recipe.StackInfo;
 import codechicken.nei.util.NBTJson;
 
 public class BookmarkStorage {
@@ -82,10 +80,21 @@ public class BookmarkStorage {
 
     public int getNamespaceSize() {
 
-        if (this.namespaces.get(this.namespaces.size() - 1).size() > 0) {
-            this.namespaces.add(new BookmarkGrid());
-        } else if (this.activeNamespaceIndex == this.namespaces.size() - 2 && getActiveGrid().size() == 0) {
-            this.namespaces.remove(this.namespaces.size() - 1);
+        final int lastIndex = this.namespaces.size() - 1;
+        final BookmarkGrid lastGrid = this.namespaces.get(lastIndex);
+        final SortableGroup sortableGroup = ItemPanels.bookmarkPanel.sortableGroup;
+
+        if (lastGrid.size() > 0) {
+            if (sortableGroup == null || sortableGroup.grid != lastGrid || !sortableGroup.aloneInGrid) {
+                this.namespaces.add(new BookmarkGrid());
+            }
+        } else if (lastIndex > 0 && this.activeNamespaceIndex != lastIndex) {
+            final BookmarkGrid prevGrid = this.namespaces.get(lastIndex - 1);
+
+            if (sortableGroup != null && sortableGroup.grid == prevGrid && sortableGroup.aloneInGrid
+                    || prevGrid == getActiveGrid() && prevGrid.size() == 0) {
+                this.namespaces.remove(lastIndex);
+            }
         }
 
         return this.namespaces.size();
@@ -198,7 +207,16 @@ public class BookmarkStorage {
                     continue;
                 }
 
-                if (!addItemToGrid(grid, parser.parse(itemStr).getAsJsonObject())) {
+                final BookmarkItem item = BookmarkItem.of(parser.parse(itemStr).getAsJsonObject());
+
+                if (item != null) {
+
+                    if (!grid.groups.containsKey(item.groupId)) {
+                        item.groupId = BookmarkGrid.DEFAULT_GROUP_ID;
+                    }
+
+                    grid.addItem(item, false);
+                } else {
                     wasError = true;
                     NEIClientConfig.logger.warn(
                             "Failed to load bookmarked ItemStack from json string, the item no longer exists:\n{}",
@@ -237,47 +255,6 @@ public class BookmarkStorage {
         this.bookmarkFile = bookmarkFile;
     }
 
-    private boolean addItemToGrid(BookmarkGrid grid, JsonObject jsonObject) {
-        NBTTagCompound itemStackNBT;
-
-        if (jsonObject.get("item") != null) {
-            itemStackNBT = (NBTTagCompound) NBTJson.toNbt(jsonObject.get("item"));
-        } else { // old format
-            itemStackNBT = (NBTTagCompound) NBTJson.toNbt(jsonObject);
-        }
-
-        ItemStack itemStack = StackInfo.loadFromNBT(itemStackNBT);
-
-        if (itemStack != null) {
-            RecipeId recipeId = null;
-            boolean isFluid = itemStackNBT.hasKey("gtFluidName");
-            int groupId = jsonObject.has("groupId") ? jsonObject.get("groupId").getAsInt()
-                    : BookmarkGrid.DEFAULT_GROUP_ID;
-            int factor = jsonObject.has("factor") ? Math.abs(jsonObject.get("factor").getAsInt()) : (isFluid ? 144 : 1);
-            BookmarkItemType type = jsonObject.has("type") ? BookmarkItemType.fromInt(jsonObject.get("type").getAsInt())
-                    : null;
-
-            if (type == null) {
-                // old format
-                type = jsonObject.has("ingredient") && jsonObject.get("ingredient").getAsBoolean()
-                        ? BookmarkItemType.INGREDIENT
-                        : BookmarkItemType.RESULT;
-            }
-
-            if (jsonObject.get("recipeId") instanceof JsonObject recipeJson) {
-                recipeId = RecipeId.of(recipeJson);
-            }
-
-            if (!grid.groups.containsKey(groupId)) {
-                groupId = BookmarkGrid.DEFAULT_GROUP_ID;
-            }
-
-            grid.addItem(BookmarkItem.of(groupId, itemStack, factor, recipeId, type), false);
-        }
-
-        return itemStack != null;
-    }
-
     public void save() {
 
         if (this.bookmarkFile == null) {
@@ -318,21 +295,7 @@ public class BookmarkStorage {
 
             for (BookmarkItem item : grid.bookmarkItems) {
                 try {
-                    JsonObject row = new JsonObject();
-
-                    row.add("item", NBTJson.toJsonObject(StackInfo.itemStackToNBT(item.getItemStack())));
-                    row.add("factor", new JsonPrimitive(item.getFactor()));
-                    row.add("type", new JsonPrimitive(item.type.toInt()));
-
-                    if (item.groupId != BookmarkGrid.DEFAULT_GROUP_ID) {
-                        row.add("groupId", new JsonPrimitive(item.groupId));
-                    }
-
-                    if (item.recipeId != null) {
-                        row.add("recipeId", item.recipeId.toJsonObject());
-                    }
-
-                    strings.add(NBTJson.toJson(row));
+                    strings.add(NBTJson.toJson(item.toJsonObject()));
                 } catch (JsonSyntaxException e) {
                     NEIClientConfig.logger.error("Failed to stringify bookmarked ItemStack to json string");
                 }

src/main/java/codechicken/nei/bookmark/BookmarksGridSlot.java

@@ -8,12 +8,12 @@ import org.lwjgl.opengl.GL11;
 
 import codechicken.lib.vec.Rectangle4i;
 import codechicken.nei.BookmarkPanel.BookmarkViewMode;
-import codechicken.nei.ItemPanels;
 import codechicken.nei.ItemsGrid.ItemsGridSlot;
 import codechicken.nei.ItemsGrid.MouseContext;
 import codechicken.nei.NEIClientConfig;
 import codechicken.nei.NEIClientUtils;
 import codechicken.nei.NEIClientUtils.Alignment;
+import codechicken.nei.PositionedStack;
 import codechicken.nei.bookmark.BookmarkGrid.BookmarkMouseContext;
 import codechicken.nei.bookmark.BookmarkItem.BookmarkItemType;
 import codechicken.nei.bookmark.RecipeChainDetails.CalculatedType;
@@ -63,28 +63,29 @@ public class BookmarksGridSlot extends ItemsGridSlot {
     protected final boolean isFirstOutput;
     protected final int rowIndex;
 
-    public BookmarksGridSlot(int slotIndex, int itemIndex, long realAmount, long shiftAmount, long calculatedAmount,
-            BookmarkItem bookmarkItem, CalculatedType calculatedType, BookmarkGroup group) {
+    public BookmarksGridSlot(int slotIndex, int itemIndex, long realMultiplier, long shiftAmount,
+            long calculatedMultiplier, BookmarkItem bookmarkItem, CalculatedType calculatedType, BookmarkGroup group,
+            BookmarkGrid grid) {
         super(
                 slotIndex,
                 itemIndex,
-                calculatedType != null ? bookmarkItem.getItemStack(calculatedAmount)
-                        : bookmarkItem.getItemStack(realAmount));
+                calculatedType != null ? bookmarkItem.getItemStack(bookmarkItem.getAmount(calculatedMultiplier))
+                        : bookmarkItem.getItemStack(bookmarkItem.getAmount(realMultiplier)));
 
         this.emptyItemStack = bookmarkItem.getItemStack(0);
-        this.realAmount = realAmount;
+        this.realAmount = bookmarkItem.getAmount(realMultiplier);
         this.shiftAmount = shiftAmount;
-        this.calculatedAmount = calculatedAmount;
+        this.calculatedAmount = calculatedType != null ? bookmarkItem.getAmount(calculatedMultiplier) : this.realAmount;
 
         this.group = group;
         this.calculatedType = calculatedType;
         this.bookmarkItem = bookmarkItem;
 
         this.isOutputRecipe = group.crafting != null && group.crafting.outputRecipes.contains(bookmarkItem.recipeId);
-        this.isFluidDisplay = StackInfo.itemStackToNBT(bookmarkItem.itemStack).hasKey("gtFluidName");
+        this.isFluidDisplay = StackInfo.isFluidDisplayItem(bookmarkItem.itemStack);
 
-        this.realMultiplier = bookmarkItem.getMultiplier(realAmount);
-        this.calculatedMultiplier = bookmarkItem.getMultiplier(calculatedAmount);
+        this.realMultiplier = realMultiplier;
+        this.calculatedMultiplier = calculatedMultiplier;
 
         if (this.group.crafting != null && this.group.crafting.calculatedItems.containsKey(this.itemIndex)) {
             this.realType = this.group.crafting.calculatedItems.get(this.itemIndex).calculatedType
@@ -95,7 +96,6 @@ public class BookmarksGridSlot extends ItemsGridSlot {
                             : CalculatedType.RESULT;
         }
 
-        final BookmarkGrid grid = ItemPanels.bookmarkPanel.getGrid();
         final BookmarkItem prevItem = grid.getCalculatedItem(
                 grid.gridGenerator.slotToItem.getOrDefault(grid.gridGenerator.itemToSlot.get(this.itemIndex) - 1, -1));
         this.isFirstOutput = this.itemIndex >= 0 && this.bookmarkItem.type == BookmarkItemType.RESULT
@@ -192,7 +192,7 @@ public class BookmarksGridSlot extends ItemsGridSlot {
 
     protected HandlerInfo getHandlerInfo() {
         if (this.bookmarkItem.recipeId != null && this.handlerInfo == null) {
-            this.handlerInfo = GuiRecipeTab.getHandlerInfo(this.bookmarkItem.recipeId.getHandleName(), null);
+            this.handlerInfo = GuiRecipeTab.getHandlerInfo(this.bookmarkItem.recipeId.getHandlerName(), null);
         }
         return this.handlerInfo;
     }
@@ -347,17 +347,22 @@ public class BookmarksGridSlot extends ItemsGridSlot {
     }
 
     protected void drawStackSize(Rectangle4i rect, ShownItemType shownItemType) {
+        boolean drawChance = this.calculatedMultiplier > 0;
         long amount = this.calculatedAmount;
 
         if (shownItemType == null || shownItemType == ShownItemType.REAL || this.calculatedType == null) {
             amount = this.realAmount;
+            drawChance = this.realMultiplier > 0;
         } else if (shownItemType == ShownItemType.SHIFT) {
             amount = this.shiftAmount;
+            drawChance = false;
         }
 
-        if (amount > 0 || shownItemType == ShownItemType.REAL && this.bookmarkItem.factor > 0) {
+        if (amount > 0 || this.bookmarkItem.chance != PositionedStack.CHANCE_FULL && drawChance
+                || shownItemType == ShownItemType.REAL && !this.bookmarkItem.emptyFactor()) {
             final float panelFactor = (rect.w - 2) / (DEFAULT_SLOT_SIZE - 2);
             final long stackSize = this.bookmarkItem.getStackSize(amount);
+            int color = 0xFFFFFF;
             String amountString = "";
 
             if (stackSize < 10_000) {
@@ -370,11 +375,16 @@ public class BookmarksGridSlot extends ItemsGridSlot {
                 amountString += "L";
             }
 
+            if (this.bookmarkItem.chance != PositionedStack.CHANCE_FULL) {
+                amountString = "~" + amountString;
+                color = 0xFFAA00;
+            }
+
             NEIClientUtils.drawNEIOverlayText(
                     amountString,
                     new Rectangle4i(rect.x + 1, rect.y + 1, rect.w - 2, rect.h - 2),
                     panelFactor,
-                    0xFFFFFF,
+                    color,
                     true,
                     this.isFluidDisplay ? Alignment.BottomLeft : Alignment.BottomRight);
         }

src/main/java/codechicken/nei/bookmark/RecipeChainDetails.java

@@ -42,34 +42,35 @@ public class RecipeChainDetails {
 
         private final BookmarkItem item;
 
-        private long realAmount = 0L;
+        private long realMultiplier = 0L;
         private long shiftAmount = 0L;
-        private long calculatedAmount = 0L;
+        private long calculatedMultiplier = 0L;
 
         public CalculatedType calculatedType;
 
-        protected BookmarkChainItem(BookmarkItem item, long shiftItem, long calculatedItem,
+        protected BookmarkChainItem(BookmarkItem item, long shiftItem, long calculatedMultiplier,
                 CalculatedType calculatedType) {
             this.item = item.copy();
             this.shiftAmount = shiftItem;
-            this.calculatedAmount = calculatedItem;
+            this.calculatedMultiplier = calculatedMultiplier;
             this.calculatedType = calculatedType;
         }
 
-        public static BookmarkChainItem of(BookmarkItem item, long shiftItem, long calculatedAmount,
+        public static BookmarkChainItem of(BookmarkItem item, long shiftItem, long calculatedMultiplier,
                 CalculatedType calculatedType) {
-            return new BookmarkChainItem(item, shiftItem, calculatedAmount, calculatedType);
+            return new BookmarkChainItem(item, shiftItem, calculatedMultiplier, calculatedType);
         }
 
         public static BookmarkChainItem of(BookmarkItem item, long shiftItem, CalculatedType calculatedType) {
-            return new BookmarkChainItem(item, shiftItem, item.amount, calculatedType);
+            return new BookmarkChainItem(item, shiftItem, item.getMultiplier(), calculatedType);
         }
 
         public static BookmarkChainItem of(BookmarkItem item) {
+            final long amount = item.getAmount();
             return new BookmarkChainItem(
                     item,
-                    item.amount,
-                    item.amount,
+                    amount,
+                    item.getMultiplier(),
                     item.type == BookmarkItemType.INGREDIENT ? CalculatedType.INGREDIENT : CalculatedType.RESULT);
         }
 
@@ -77,30 +78,34 @@ public class RecipeChainDetails {
             return this.item.getItemStack(amount);
         }
 
-        public void setRealAmount(long amount) {
-            this.realAmount = amount;
+        public void setRealMultiplier(long multiplier) {
+            this.realMultiplier = multiplier;
         }
 
-        public long getRealAmount() {
-            return this.realAmount;
+        public long getRealMultiplier() {
+            return this.realMultiplier;
+        }
+
+        public void setCalculatedMultiplier(long multiplier) {
+            this.calculatedMultiplier = multiplier;
+        }
+
+        public long getCalculatedMultiplier() {
+            return this.calculatedMultiplier;
         }
 
         public long getShiftAmount() {
             return this.shiftAmount;
         }
 
-        public long getCalculatedAmount() {
-            return this.calculatedAmount;
-        }
-
         public BookmarkItem getItem() {
             return this.item;
         }
 
         public void append(long amount, long calculatedAmount) {
             this.shiftAmount += amount;
-            this.calculatedAmount += calculatedAmount;
-            this.item.amount = this.calculatedAmount;
+            this.calculatedMultiplier += this.item.getMultiplierFromAmount(calculatedAmount);
+            this.item.multiplier = this.calculatedMultiplier;
         }
     }
 
@@ -180,10 +185,9 @@ public class RecipeChainDetails {
             if (itemIndex >= 0 && this.calculatedItems.containsKey(itemIndex)) {
                 final BookmarkItem item = entry.getValue();
                 if (this.recipeInMiddle.contains(item.recipeId)) {
-                    this.calculatedItems.get(itemIndex)
-                            .setRealAmount(Math.max(0, item.factor * (item.getMultiplier() - 1)));
+                    this.calculatedItems.get(itemIndex).setRealMultiplier(Math.max(0, item.getMultiplier() - 1));
                 } else {
-                    this.calculatedItems.get(itemIndex).setRealAmount(item.amount);
+                    this.calculatedItems.get(itemIndex).setRealMultiplier(item.getMultiplier());
                 }
             }
         }
@@ -239,7 +243,7 @@ public class RecipeChainDetails {
 
         for (BookmarkItem item : chainItems) {
             if (recipeRelations.contains(item.recipeId)) {
-                subChainItems.add(item.copyWithAmount(recipeId.equals(item.recipeId) ? item.amount : 0));
+                subChainItems.add(item.copyWithMultiplier(recipeId.equals(item.recipeId) ? item.multiplier : 0));
             }
         }
 
@@ -258,7 +262,8 @@ public class RecipeChainDetails {
             }
 
             if (this.calculatedItems.containsKey(itemIndex)) {
-                this.calculatedItems.get(itemIndex).setRealAmount(value.getShiftAmount());
+                this.calculatedItems.get(itemIndex)
+                        .setRealMultiplier(value.getItem().getMultiplierFromAmount(value.getShiftAmount()));
             }
         }
 
@@ -272,18 +277,19 @@ public class RecipeChainDetails {
         for (RecipeId relRecipeId : recipeRelations) {
             for (BookmarkItem item : math.recipeResults) {
                 if (item.recipeId.equals(relRecipeId)) {
-                    final long amount = item.amount - math.requiredAmount.getOrDefault(item, 0L);
+                    final long amount = item.getAmount() - math.requiredAmount.getOrDefault(item, 0L);
 
                     if (item.recipeId.equals(recipeId)) {
                         multiplier.put(item.recipeId, item.getMultiplier());
                         items.computeIfAbsent(
                                 StackInfo.getItemStackGUID(item.itemStack),
                                 is -> BookmarkChainItem.of(item, 0, 0, CalculatedType.RESULT))
-                                .append(amount, item.amount);
+                                .append(amount, item.getAmount());
                     } else if (amount > 0) {
                         items.computeIfAbsent(
                                 StackInfo.getItemStackGUID(item.itemStack),
-                                is -> BookmarkChainItem.of(item, 0, 0, CalculatedType.RESULT)).append(amount, amount);
+                                is -> BookmarkChainItem.of(item, 0, 0, CalculatedType.RESULT))
+                                .append(amount, item.getAmount());
                     }
                 }
             }
@@ -292,17 +298,17 @@ public class RecipeChainDetails {
                 if (item.recipeId.equals(relRecipeId)) {
                     final BookmarkItem prefItem = math.preferredItems.get(item);
                     final long amount = math.requiredAmount.containsKey(prefItem) ? 0
-                            : math.requiredAmount.getOrDefault(item, item.amount);
+                            : math.requiredAmount.getOrDefault(item, item.getAmount());
                     final long refAmount = prefItem != null && !topLevelRecipes.contains(prefItem.recipeId)
                             ? math.requiredAmount.getOrDefault(prefItem, 0L)
                             : 0;
 
-                    if (amount != 0 || item.amount > refAmount && math.requiredAmount.containsKey(prefItem)
+                    if (amount != 0 || item.getAmount() > refAmount && math.requiredAmount.containsKey(prefItem)
                             || recipeId.equals(item.recipeId) && multiplier.get(recipeId) == 0) {
                         items.computeIfAbsent(
                                 StackInfo.getItemStackGUID(item.itemStack),
                                 is -> BookmarkChainItem.of(item, 0, 0, CalculatedType.INGREDIENT))
-                                .append(amount, item.amount - refAmount);
+                                .append(amount, item.getAmount() - refAmount);
                     }
                 }
             }
@@ -312,7 +318,7 @@ public class RecipeChainDetails {
     }
 
     private void generateResult(RecipeChainMath math, BookmarkItem item, int itemIndex) {
-        final long amount = item.amount - math.requiredAmount.getOrDefault(item, 0L);
+        final long amount = item.getAmount() - math.requiredAmount.getOrDefault(item, 0L);
         final CalculatedType calculatedType = math.outputRecipes.containsKey(item.recipeId) ? CalculatedType.RESULT
                 : CalculatedType.REMAINDER;
 
@@ -322,7 +328,7 @@ public class RecipeChainDetails {
     private void generateIngredient(RecipeChainMath math, BookmarkItem item, int itemIndex) {
         final BookmarkItem prefItem = math.preferredItems.get(item);
         final long amount = math.requiredAmount.containsKey(prefItem) ? 0
-                : math.requiredAmount.getOrDefault(item, item.amount);
+                : math.requiredAmount.getOrDefault(item, item.getAmount());
 
         this.calculatedItems.put(itemIndex, BookmarkChainItem.of(item, amount, CalculatedType.INGREDIENT));
     }

src/main/java/codechicken/nei/bookmark/SortableGroup.java

@@ -13,13 +13,23 @@ public class SortableGroup {
 
     public int groupId;
     public BookmarkGrid grid;
+    public boolean aloneInGrid;
 
     public int shiftX = 0;
     public int shiftY = 0;
 
     public SortableGroup(BookmarkGrid grid, int groupId) {
+        update(grid, groupId);
+    }
+
+    public void update(BookmarkGrid grid, int groupId) {
         this.grid = grid;
         this.groupId = groupId;
+        this.aloneInGrid = grid.bookmarkItems.stream().allMatch(item -> item.groupId == groupId);
+    }
+
+    public boolean matches(BookmarkGrid grid, int groupId) {
+        return this.grid == grid && this.groupId == groupId;
     }
 
     public void postDraw(int mousex, int mousey) {

src/main/java/codechicken/nei/bookmark/SortableItem.java

@@ -1,5 +1,7 @@
 package codechicken.nei.bookmark;
 
+import static codechicken.nei.bookmark.BookmarkGrid.DEFAULT_GROUP_ID;
+
 import java.awt.Point;
 import java.util.ArrayList;
 import java.util.Collections;
@@ -139,13 +141,11 @@ public class SortableItem {
                         return;
                     }
 
-                    if (overGroupId != BookmarkGrid.DEFAULT_GROUP_ID
-                            && beforeGroupId != BookmarkGrid.DEFAULT_GROUP_ID) {
-                        beforeGroupId = BookmarkGrid.DEFAULT_GROUP_ID;
+                    if (overGroupId != DEFAULT_GROUP_ID && beforeGroupId != DEFAULT_GROUP_ID) {
+                        beforeGroupId = DEFAULT_GROUP_ID;
                     }
 
-                    if (overGroupId == BookmarkGrid.DEFAULT_GROUP_ID && beforeGroupId != BookmarkGrid.DEFAULT_GROUP_ID
-                            && afterGroupId != BookmarkGrid.DEFAULT_GROUP_ID) {
+                    if (overGroupId == DEFAULT_GROUP_ID && afterGroupId != DEFAULT_GROUP_ID) {
                         return;
                     }
 
@@ -160,12 +160,11 @@ public class SortableItem {
                         return;
                     }
 
-                    if (overGroupId != BookmarkGrid.DEFAULT_GROUP_ID && afterGroupId != BookmarkGrid.DEFAULT_GROUP_ID) {
-                        afterGroupId = BookmarkGrid.DEFAULT_GROUP_ID;
+                    if (overGroupId != DEFAULT_GROUP_ID && afterGroupId != DEFAULT_GROUP_ID) {
+                        afterGroupId = DEFAULT_GROUP_ID;
                     }
 
-                    if (overGroupId == BookmarkGrid.DEFAULT_GROUP_ID && beforeGroupId != BookmarkGrid.DEFAULT_GROUP_ID
-                            && afterGroupId != BookmarkGrid.DEFAULT_GROUP_ID) {
+                    if (overGroupId == DEFAULT_GROUP_ID && beforeGroupId != DEFAULT_GROUP_ID) {
                         return;
                     }
 

src/main/java/codechicken/nei/bookmark/tree/Camera.java

@@ -0,0 +1,131 @@
+package codechicken.nei.bookmark.tree;
+
+import java.awt.geom.Point2D;
+
+import org.lwjgl.input.Mouse;
+
+class Camera {
+
+    private static final float ZOOM_MIN = 0.1f;
+    private static final float ZOOM_MAX = 8.0f;
+    private static final double ZOOM_STEP_BASE = 1.4;
+    private static final float SCROLL_STEP_DIVISOR = 5f;
+    private static final int CULL_MARGIN = 32;
+    private static final int CULL_ROW_MARGIN = 16;
+
+    private static final float INITIAL_SCROLL = -8f;
+
+    public int widgetX;
+    public int widgetY;
+    public int widgetW;
+    public int widgetH;
+
+    public float scrollX = INITIAL_SCROLL;
+    public float scrollY = INITIAL_SCROLL;
+    public float zoomLevel = 1.0f;
+
+    private float lastDragX;
+    private float lastDragY;
+    private boolean dragging;
+
+    public void setViewport(int x, int y, int w, int h) {
+        this.widgetX = x;
+        this.widgetY = y;
+        this.widgetW = w;
+        this.widgetH = h;
+    }
+
+    public boolean isInWidget(int x, int y) {
+        return x >= this.widgetX && y >= this.widgetY
+                && x < this.widgetX + this.widgetW
+                && y < this.widgetY + this.widgetH;
+    }
+
+    public void startDrag(Point2D mouse) {
+        this.dragging = true;
+        this.lastDragX = (float) mouse.getX();
+        this.lastDragY = (float) mouse.getY();
+    }
+
+    public void drag(Point2D mouse) {
+        if (!this.dragging) {
+            return;
+        }
+
+        final float mouseX = (float) mouse.getX();
+        final float mouseY = (float) mouse.getY();
+
+        this.scrollX -= (mouseX - this.lastDragX) / this.zoomLevel;
+        this.scrollY -= (mouseY - this.lastDragY) / this.zoomLevel;
+        this.lastDragX = mouseX;
+        this.lastDragY = mouseY;
+    }
+
+    public void update(Point2D mouse, int treeWidth, int treeHeight) {
+        if (this.dragging && Mouse.isButtonDown(0)) {
+            drag(mouse);
+        }
+
+        clampToBounds(treeWidth, treeHeight);
+    }
+
+    public void endDrag() {
+        this.dragging = false;
+    }
+
+    public boolean isDragging() {
+        return this.dragging;
+    }
+
+    public void scroll(int mouseX, int mouseY, int direction, boolean shiftKey, boolean ctrlKey) {
+
+        if (shiftKey) {
+            this.scrollX -= direction * this.widgetW / (SCROLL_STEP_DIVISOR * this.zoomLevel);
+        } else if (ctrlKey) {
+            final int localX = mouseX - this.widgetX;
+            final int localY = mouseY - this.widgetY;
+            final float oldZoom = this.zoomLevel;
+
+            this.zoomLevel = clamp((float) (this.zoomLevel * Math.pow(ZOOM_STEP_BASE, direction)), ZOOM_MIN, ZOOM_MAX);
+            this.scrollX += localX / oldZoom - localX / this.zoomLevel;
+            this.scrollY += localY / oldZoom - localY / this.zoomLevel;
+        } else {
+            this.scrollY -= direction * this.widgetH / (SCROLL_STEP_DIVISOR * this.zoomLevel);
+        }
+    }
+
+    public void centerOn(float worldX, float worldY) {
+        this.scrollX = worldX - (this.widgetW / this.zoomLevel) / 2f;
+        this.scrollY = worldY - (this.widgetH / this.zoomLevel) / 2f;
+    }
+
+    public void clampToBounds(int treeWidth, int treeHeight) {
+        this.scrollX = clamp(this.scrollX, -this.widgetW / this.zoomLevel + 4, treeWidth - 4);
+        this.scrollY = clamp(this.scrollY, -this.widgetH / this.zoomLevel + 4, treeHeight - 4);
+    }
+
+    public int visibleRowMin() {
+        final float zScrollY = this.scrollY * this.zoomLevel;
+        return (int) ((zScrollY - CULL_MARGIN) / this.zoomLevel) - CULL_ROW_MARGIN;
+    }
+
+    public int visibleRowMax() {
+        final float zScrollY = this.scrollY * this.zoomLevel;
+        return (int) ((zScrollY + CULL_MARGIN) / this.zoomLevel) + (int) (this.widgetH / this.zoomLevel)
+                + CULL_ROW_MARGIN;
+    }
+
+    public Point2D.Double toWorldPoint(Point2D mouse) {
+        final float zScrollX = this.scrollX * this.zoomLevel;
+        final float zScrollY = this.scrollY * this.zoomLevel;
+
+        return new Point2D.Double(
+                (mouse.getX() - this.widgetX + zScrollX) / this.zoomLevel,
+                (mouse.getY() - this.widgetY + zScrollY) / this.zoomLevel);
+    }
+
+    static float clamp(float value, float min, float max) {
+        return value < min ? min : Math.min(value, max);
+    }
+
+}

src/main/java/codechicken/nei/bookmark/tree/CraftingTreeCanvas.java

@@ -0,0 +1,724 @@
+package codechicken.nei.bookmark.tree;
+
+import java.awt.Color;
+import java.awt.Point;
+import java.awt.geom.Point2D;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.TreeMap;
+import java.util.function.BiPredicate;
+
+import net.minecraft.client.renderer.RenderHelper;
+
+import org.lwjgl.opengl.GL11;
+import org.lwjgl.opengl.GL12;
+
+import codechicken.lib.gui.GuiDraw;
+import codechicken.lib.vec.Rectangle4i;
+import codechicken.nei.ColorUtils;
+import codechicken.nei.NEIClientUtils;
+import codechicken.nei.NEIClientUtils.Alignment;
+import codechicken.nei.PositionedStack;
+import codechicken.nei.bookmark.BookmarkItem;
+import codechicken.nei.drawable.DrawableBuilder;
+import codechicken.nei.drawable.DrawableResource;
+import codechicken.nei.guihook.GuiContainerManager;
+import codechicken.nei.recipe.Recipe.RecipeId;
+import codechicken.nei.scroll.GuiHelper;
+import codechicken.nei.util.ReadableNumberConverter;
+
+class CraftingTreeCanvas {
+
+    private static final DrawableResource SCROLLBAR_H = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            0,
+            88,
+            2,
+            24).build();
+
+    private static final DrawableResource SCROLLBAR_W = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            0,
+            84,
+            24,
+            2).build();
+
+    private static final DrawableResource ICON_COLLAPSED = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            4,
+            88,
+            5,
+            5).build();
+
+    private static final DrawableResource ICON_COLLAPSED_HOVER = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            11,
+            88,
+            5,
+            5).build();
+
+    private static final DrawableResource ICON_EXPANDED = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            4,
+            95,
+            5,
+            5).build();
+
+    private static final DrawableResource ICON_EXPANDED_HOVER = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            11,
+            95,
+            5,
+            5).build();
+
+    private static final DrawableResource ICON_REMOVE = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            85,
+            48,
+            16,
+            16).build();
+
+    private static final DrawableResource ICON_CRAFTING = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            67,
+            48,
+            16,
+            16).build();
+
+    private static final DrawableResource SLOT_DEFAULT = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            68,
+            2,
+            18,
+            18).build();
+
+    private static final DrawableResource SLOT_MISSING = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            92,
+            2,
+            18,
+            18).build();
+
+    private static final DrawableResource SLOT_CRAFTING = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            116,
+            2,
+            18,
+            18).build();
+
+    private static final DrawableResource SLOT_DISABLED = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            140,
+            2,
+            18,
+            18).build();
+
+    private static final DrawableResource SLOT_HIGHLIGHTED = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            164,
+            2,
+            18,
+            18).build();
+
+    private static final Color LINE_COLOR = new Color(ColorUtils.craftingTreeLine.getColor(), true);
+    private static final int HOVER_COLOR = 0x66888888;
+    private static final float BADGE_SCALE = 0.6f;
+
+    public static final int SLOT_SIZE = 18;
+    public static final int X_SPACING = 24;
+    public static final int Y_SPACING = 14;
+    public static final int ROOT_SPACING = 36;
+    private static final float FIT_MARGIN = 8f;
+
+    public final CraftingTreeGraph graph = new CraftingTreeGraph();
+
+    public final Map<ItemTreeSlot, Point> pointByNode = new HashMap<>();
+    public final TreeMap<Integer, List<ItemTreeSlot>> rows = new TreeMap<>();
+    public final Set<RecipeId> collapsedRecipes = Collections.newSetFromMap(new HashMap<>());
+    public int treeWidth = 0;
+    public int treeHeight = 0;
+
+    private final Camera camera;
+
+    public CraftingTreeCanvas(Camera camera) {
+        this.camera = camera;
+    }
+
+    public void setViewport(int x, int y, int w, int h) {
+        this.camera.setViewport(x, y, w, h);
+    }
+
+    public boolean isInWidget(int x, int y) {
+        return this.camera.isInWidget(x, y);
+    }
+
+    public void fitToView() {
+        final float firstResultCenterX = this.graph.roots.isEmpty() ? this.treeWidth / 2f
+                : this.pointByNode.get(this.graph.roots.get(0)).x + SLOT_SIZE / 2f;
+
+        this.camera.zoomLevel = 1.0f;
+        this.camera.scrollX = this.treeWidth <= (this.camera.widgetW - FIT_MARGIN)
+                ? (this.treeWidth - this.camera.widgetW) / 2f
+                : firstResultCenterX - this.camera.widgetW / 2f;
+        this.camera.scrollY = this.treeHeight <= (this.camera.widgetH - FIT_MARGIN)
+                ? (this.treeHeight - this.camera.widgetH) / 2f
+                : -FIT_MARGIN;
+    }
+
+    public void startDrag(Point2D mouse) {
+        this.camera.startDrag(mouse);
+    }
+
+    public void drag(Point2D mouse) {
+        this.camera.drag(mouse);
+    }
+
+    public void endDrag() {
+        this.camera.endDrag();
+    }
+
+    public boolean isDragging() {
+        return this.camera.isDragging();
+    }
+
+    public void scroll(int mouseX, int mouseY, int direction, boolean shiftKey, boolean ctrlKey) {
+        this.camera.scroll(mouseX, mouseY, direction, shiftKey, ctrlKey);
+    }
+
+    public void scrollTo(ItemTreeSlot node) {
+        if (node == null || !this.pointByNode.containsKey(node)) {
+            return;
+        }
+
+        final Point point = this.pointByNode.get(node);
+        final float nodeCenterX = point.x + SLOT_SIZE / 2f;
+        final float nodeCenterY = point.y + SLOT_SIZE / 2f;
+
+        this.camera.centerOn(nodeCenterX, nodeCenterY);
+    }
+
+    public ItemTreeSlot getNodeMouseOver(Point2D mouse) {
+        return findVisibleNode(mouse, (node, local) -> {
+            final Point point = this.pointByNode.get(node);
+
+            return local.x >= point.x && local.x < point.x + SLOT_SIZE
+                    && local.y >= point.y
+                    && local.y < point.y + SLOT_SIZE;
+        });
+    }
+
+    public ItemTreeSlot getHandlerBadgeMouseOver(Point2D mouse) {
+        return findVisibleNode(mouse, (node, local) -> {
+            if (node.prefItem == null || !this.graph.childrenOf.containsKey(node)) {
+                return false;
+            }
+
+            final Point point = this.pointByNode.get(node);
+            final float[] badge = badgeRect(point.x, point.y);
+
+            return local.x >= badge[0] && local.x < badge[0] + badge[2]
+                    && local.y >= badge[1]
+                    && local.y < badge[1] + badge[3];
+        });
+    }
+
+    public ItemTreeSlot getCollapseArrowMouseOver(Point2D mouse) {
+        return findVisibleNode(mouse, (node, local) -> {
+            if (!this.graph.childrenOf.containsKey(node) || node.prefItem == null
+                    || this.collapsedRecipes.contains(node.prefItem.recipeId) && !this.graph.roots.contains(node)) {
+                return false;
+            }
+
+            final Point point = this.pointByNode.get(node);
+            final float iconX = point.x + SLOT_SIZE / 2 - ICON_COLLAPSED.width - 1;
+            final float iconY = point.y + SLOT_SIZE + 1;
+            final float iconW = ICON_COLLAPSED.width;
+            final float iconH = ICON_COLLAPSED.height;
+
+            return local.x >= iconX && local.x < iconX + iconW && local.y >= iconY && local.y < iconY + iconH;
+        });
+    }
+
+    private ItemTreeSlot findVisibleNode(Point2D mouse, BiPredicate<ItemTreeSlot, Point2D.Double> hitTest) {
+        final Point2D.Double local = this.camera.toWorldPoint(mouse);
+
+        for (List<ItemTreeSlot> row : this.rows.subMap(camera.visibleRowMin(), camera.visibleRowMax()).values()) {
+            for (ItemTreeSlot node : row) {
+                if (hitTest.test(node, local)) {
+                    return node;
+                }
+            }
+        }
+
+        return null;
+    }
+
+    public void draw(Point2D mouse, Set<BookmarkItem> collapsedItems, SearchResult searchResult,
+            boolean useInventorySnapshot, ItemTreeSlot hoveredNode, ItemTreeSlot deleteHoverNode) {
+        this.camera.update(mouse, this.treeWidth, this.treeHeight);
+
+        final float zScrollX = this.camera.scrollX * this.camera.zoomLevel;
+        final float zScrollY = this.camera.scrollY * this.camera.zoomLevel;
+        final int cropXMin = (int) ((zScrollX - 32) / this.camera.zoomLevel);
+        final int cropXMax = (int) ((zScrollX + 32) / this.camera.zoomLevel)
+                + (int) (this.camera.widgetW / this.camera.zoomLevel);
+        final ItemTreeSlot collapseHoverNode = this.camera.isDragging() ? null : getCollapseArrowMouseOver(mouse);
+
+        GuiHelper.useScissor(this.camera.widgetX, this.camera.widgetY, this.camera.widgetW, this.camera.widgetH, () -> {
+            GL11.glPushMatrix();
+            GL11.glPushAttrib(GL11.GL_ENABLE_BIT | GL11.GL_COLOR_BUFFER_BIT | GL11.GL_LIGHTING_BIT);
+            GL11.glColor4f(1, 1, 1, 1);
+            GL11.glEnable(GL11.GL_BLEND);
+            GL11.glEnable(GL12.GL_RESCALE_NORMAL);
+            RenderHelper.enableGUIStandardItemLighting();
+            GL11.glDisable(GL11.GL_LIGHTING);
+            GL11.glTranslatef(this.camera.widgetX - zScrollX, this.camera.widgetY - zScrollY, 0.0f);
+            GL11.glScalef(this.camera.zoomLevel, this.camera.zoomLevel, 1.0f);
+
+            for (List<ItemTreeSlot> row : this.rows.subMap(this.camera.visibleRowMin(), this.camera.visibleRowMax())
+                    .values()) {
+                for (ItemTreeSlot node : row) {
+                    final Point point = this.pointByNode.get(node);
+
+                    drawParentLine(node);
+
+                    if (point.x >= cropXMin && point.x <= cropXMax) {
+                        drawSlot(node, useInventorySnapshot, searchResult, collapsedItems, node == hoveredNode);
+                        drawCollapseIcon(node, collapsedItems, node == collapseHoverNode);
+
+                        if (node == hoveredNode) {
+                            NEIClientUtils.gl2DRenderContext(
+                                    () -> {
+                                        GuiDraw.drawRect(
+                                                point.x + 1,
+                                                point.y + 1,
+                                                SLOT_SIZE - 2,
+                                                SLOT_SIZE - 2,
+                                                HOVER_COLOR);
+                                    });
+                        }
+
+                        if (node.prefItem != null && this.graph.childrenOf.containsKey(node)) {
+                            drawSlotBadge(node, point.x, point.y);
+
+                            if (node == deleteHoverNode) {
+                                drawDeleteButton(point);
+                            }
+                        }
+
+                    }
+                }
+            }
+
+            GL11.glPopAttrib();
+            GL11.glPopMatrix();
+        });
+
+        drawScrollbars();
+    }
+
+    public void drawFull(Set<BookmarkItem> collapsedItems, SearchResult searchResult, boolean useInventorySnapshot) {
+        GL11.glPushMatrix();
+        GL11.glPushAttrib(GL11.GL_ENABLE_BIT | GL11.GL_COLOR_BUFFER_BIT | GL11.GL_LIGHTING_BIT);
+        GL11.glColor4f(1, 1, 1, 1);
+        GL11.glEnable(GL11.GL_BLEND);
+        GL11.glEnable(GL12.GL_RESCALE_NORMAL);
+        RenderHelper.enableGUIStandardItemLighting();
+        GL11.glDisable(GL11.GL_LIGHTING);
+
+        for (List<ItemTreeSlot> row : this.rows.values()) {
+            for (ItemTreeSlot node : row) {
+                final Point point = this.pointByNode.get(node);
+
+                drawParentLine(node);
+                drawSlot(node, useInventorySnapshot, searchResult, collapsedItems, false);
+
+                if (node.prefItem != null && this.graph.childrenOf.containsKey(node)) {
+                    drawSlotBadge(node, point.x, point.y);
+                }
+            }
+        }
+
+        GL11.glPopAttrib();
+        GL11.glPopMatrix();
+    }
+
+    private void drawSlot(ItemTreeSlot node, boolean useInventorySnapshot, SearchResult searchResult,
+            Set<BookmarkItem> collapsedItems, boolean hovered) {
+        final Point point = this.pointByNode.get(node);
+
+        if (searchResult != null) {
+
+            if (node == searchResult.highlightNode) {
+                SLOT_HIGHLIGHTED.draw(point.x, point.y);
+            } else if (searchResult.searchMatches.contains(node)) {
+                SLOT_DEFAULT.draw(point.x, point.y);
+            } else {
+                SLOT_DISABLED.draw(point.x, point.y);
+            }
+
+        } else if (useInventorySnapshot) {
+
+            if (node.leftAmount == 0) {
+
+                if (this.graph.parentOf.get(node) != null && this.graph.parentOf.get(node).leftAmount == 0
+                        || node.requestedAmount == 0) {
+                    SLOT_DISABLED.draw(point.x, point.y);
+                } else {
+                    SLOT_DEFAULT.draw(point.x, point.y);
+                }
+
+            } else if (!this.graph.childrenOf.containsKey(node)) {
+                SLOT_MISSING.draw(point.x, point.y);
+            } else if (collapsedItems.contains(node.ingrItem)) {
+
+                if (this.graph.subtreeMissingCache.contains(node)) {
+                    SLOT_MISSING.draw(point.x, point.y);
+                } else {
+                    SLOT_CRAFTING.draw(point.x, point.y);
+                }
+
+            } else if (!this.graph.childrenNeedCraftingCache.contains(node)) {
+                SLOT_CRAFTING.draw(point.x, point.y);
+            } else {
+                SLOT_DEFAULT.draw(point.x, point.y);
+            }
+
+        } else {
+            SLOT_DEFAULT.draw(point.x, point.y);
+        }
+
+        GuiContainerManager
+                .drawItem(point.x + (SLOT_SIZE - 16) / 2, point.y + (SLOT_SIZE - 16) / 2, node.emptyStack, true);
+
+        if (node.requestedAmount > 0 && node.leftAmount == 0) {
+            drawStackSize(node, node.ingrItem.getStackSize(node.requestedAmount), point.x, point.y, true);
+        } else if (node.requestedAmount > 0 && node.leftAmount > 0) {
+            final long amount = hovered && node.prefItem != null
+                    && this.graph.roots.contains(node)
+                    && this.collapsedRecipes.contains(node.prefItem.recipeId)
+                    && NEIClientUtils.controlKey() ? node.currentRequestedAmount : node.requestedAmount;
+
+            drawStackSize(node, node.ingrItem.getStackSize(amount), point.x, point.y, false);
+        }
+
+    }
+
+    protected void drawStackSize(ItemTreeSlot node, long stackSize, int x, int y, boolean resolved) {
+        String amountString = stackSize < 10_000 ? String.valueOf(stackSize)
+                : ReadableNumberConverter.INSTANCE.toWideReadableForm(stackSize);
+
+        if (node.isFluidDisplay) {
+            amountString += "L";
+        }
+
+        final boolean hasOutputChance = node.prefItem != null && node.prefItem.chance != PositionedStack.CHANCE_FULL;
+        int color = 0xFFFFFF;
+
+        if (node.ingrItem.chance != PositionedStack.CHANCE_FULL || hasOutputChance || node.isContainerItem) {
+            amountString = "~" + amountString;
+            color = 0xFFAA00;
+        }
+
+        if (resolved) {
+            color = 0x55FF55;
+        }
+
+        NEIClientUtils.drawNEIOverlayText(
+                amountString,
+                new Rectangle4i(
+                        x + (SLOT_SIZE - 16) / 2,
+                        y + (SLOT_SIZE - 16) / 2,
+                        SLOT_SIZE - (SLOT_SIZE - 16),
+                        SLOT_SIZE - (SLOT_SIZE - 16)),
+                1,
+                color,
+                true,
+                node.isFluidDisplay ? Alignment.BottomLeft : Alignment.BottomRight);
+    }
+
+    protected void drawSlotBadge(ItemTreeSlot node, int x, int y) {
+        final float[] badge = badgeRect(x, y);
+
+        GL11.glPushMatrix();
+        GL11.glColor4f(1, 1, 1, 1);
+        GL11.glTranslatef(badge[0], badge[1], 4.0f);
+        GL11.glScalef(BADGE_SCALE, BADGE_SCALE, 1.0f);
+
+        if (node.info.hasImageOrItem()) {
+            final DrawableResource image = node.info.getImage();
+
+            if (image != null) {
+                image.draw(0, 0);
+            } else {
+                GuiContainerManager.drawItem(0, 0, node.info.getItemStack(), true);
+            }
+
+        } else {
+            ICON_CRAFTING.draw(0, 0);
+        }
+
+        GL11.glPopMatrix();
+    }
+
+    private void drawCollapseIcon(ItemTreeSlot node, Set<BookmarkItem> collapsedItems, boolean hover) {
+
+        if (!this.graph.childrenOf.containsKey(node) || node.prefItem == null
+                || this.collapsedRecipes.contains(node.prefItem.recipeId) && !this.graph.roots.contains(node)) {
+            return;
+        }
+
+        final DrawableResource icon;
+
+        if (collapsedItems.contains(node.ingrItem)) {
+            icon = hover ? ICON_COLLAPSED_HOVER : ICON_COLLAPSED;
+        } else {
+            icon = hover ? ICON_EXPANDED_HOVER : ICON_EXPANDED;
+        }
+
+        final Point point = this.pointByNode.get(node);
+
+        GL11.glColor4f(1, 1, 1, 1);
+        icon.draw(point.x + SLOT_SIZE / 2 - icon.width - 1, point.y + SLOT_SIZE + 1);
+    }
+
+    private void drawDeleteButton(Point point) {
+        final float[] badge = badgeRect(point.x, point.y);
+
+        GL11.glPushMatrix();
+        GL11.glColor4f(1, 1, 1, 1);
+        GL11.glTranslatef(badge[0], badge[1], 350.0f);
+        GL11.glScalef(BADGE_SCALE, BADGE_SCALE, 1.0f);
+        ICON_REMOVE.draw(0, 0);
+        GL11.glPopMatrix();
+    }
+
+    private static float[] badgeRect(float x, float y) {
+        final float w = ICON_REMOVE.width * BADGE_SCALE;
+        final float h = ICON_REMOVE.height * BADGE_SCALE;
+
+        return new float[] { x - w / 2 + 1, y - h / 2 + 1, w, h };
+    }
+
+    private void drawParentLine(ItemTreeSlot node) {
+
+        if (!this.graph.parentOf.containsKey(node)) {
+            return;
+        }
+
+        final Point point = this.pointByNode.get(node);
+        final float x0 = point.x + SLOT_SIZE / 2f;
+        final float y0 = point.y - 1;
+
+        final ItemTreeSlot parentNode = this.graph.parentOf.get(node);
+        final Point parentPoint = this.pointByNode.get(parentNode);
+        final float x1 = parentPoint.x + SLOT_SIZE / 2f;
+        final float y1 = parentPoint.y + SLOT_SIZE;
+
+        if (x0 != x1) {
+            final float midY = (y0 + y1) / 2f;
+
+            NEIClientUtils.drawRect(x0, Math.min(y0, midY), 1, Math.abs(midY - y0) + 1, LINE_COLOR);
+            NEIClientUtils.drawRect(Math.min(x0, x1), midY, Math.abs(x1 - x0) + 1, 1, LINE_COLOR);
+            NEIClientUtils.drawRect(x1, Math.min(midY, y1), 1, Math.abs(y1 - midY) + 1, LINE_COLOR);
+        } else {
+            NEIClientUtils.drawRect(x0, Math.min(y0, y1), 1, Math.abs(y1 - y0) + 1, LINE_COLOR);
+        }
+    }
+
+    private void drawScrollbars() {
+        if (this.treeWidth <= 0 || this.treeHeight <= 0) {
+            return;
+        }
+
+        final float scrollXPct = Camera.clamp(this.camera.scrollX / this.treeWidth, 0.0f, 1.0f);
+        final float scrollYPct = Camera.clamp(this.camera.scrollY / this.treeHeight, 0.0f, 1.0f);
+
+        GL11.glTranslatef(0, 0, 500.0f);
+
+        SCROLLBAR_H.draw(
+                this.camera.widgetX + this.camera.widgetW - 3,
+                (int) (this.camera.widgetY + scrollYPct * (this.camera.widgetH - SCROLLBAR_H.height)));
+
+        SCROLLBAR_W.draw(
+                (int) (this.camera.widgetX + scrollXPct * (this.camera.widgetW - SCROLLBAR_W.width)),
+                this.camera.widgetY + this.camera.widgetH - 3);
+
+        GL11.glTranslatef(0, 0, -500.0f);
+    }
+
+    public void recalculateCoordinates(Set<RecipeId> collapsedRecipes, Set<BookmarkItem> collapsedItems,
+            ItemTreeSlot anchor) {
+        final Map<ItemTreeSlot, Integer> offsetFromParent = new HashMap<>();
+        final Point anchorOldPoint = anchor != null ? resolveAnchorPoint(anchor) : null;
+
+        this.collapsedRecipes.clear();
+        this.pointByNode.clear();
+        this.rows.clear();
+        this.treeWidth = 0;
+        this.treeHeight = 0;
+
+        this.collapsedRecipes.addAll(collapsedRecipes);
+
+        for (ItemTreeSlot node : this.graph.items) {
+            this.pointByNode.put(node, new Point(0, 0));
+        }
+
+        final List<int[]> contour = new ArrayList<>();
+
+        for (ItemTreeSlot root : this.graph.roots) {
+            final List<int[]> layout = computeLayout(root, collapsedItems, offsetFromParent);
+            final int shift = contour.isEmpty() ? 0 : requiredRootShift(contour, layout);
+
+            mergeContour(contour, layout, shift);
+            assignPositions(root, shift, 0, collapsedItems, offsetFromParent);
+        }
+
+        int minX = 0;
+
+        for (Point point : this.pointByNode.values()) {
+            minX = Math.min(minX, point.x);
+        }
+
+        if (minX < 0) {
+            for (Point point : this.pointByNode.values()) {
+                point.x -= minX;
+            }
+        }
+
+        for (List<ItemTreeSlot> row : this.rows.values()) {
+            for (ItemTreeSlot node : row) {
+                this.treeWidth = Math.max(this.treeWidth, this.pointByNode.get(node).x + CraftingTreeCanvas.SLOT_SIZE);
+                this.treeHeight = Math
+                        .max(this.treeHeight, this.pointByNode.get(node).y + CraftingTreeCanvas.SLOT_SIZE);
+            }
+        }
+
+        if (anchorOldPoint != null) {
+            final Point anchorNewPoint = resolveAnchorPoint(anchor);
+
+            if (anchorNewPoint != null) {
+                this.camera.scrollX += anchorNewPoint.x - anchorOldPoint.x;
+                this.camera.scrollY += anchorNewPoint.y - anchorOldPoint.y;
+            }
+        }
+    }
+
+    private Point resolveAnchorPoint(ItemTreeSlot anchor) {
+        Point result = this.pointByNode.get(anchor);
+
+        if (result == null) {
+            for (Map.Entry<ItemTreeSlot, Point> entry : this.pointByNode.entrySet()) {
+                if (entry.getKey().ingrItem.equals(anchor.ingrItem)) {
+                    return entry.getValue();
+                }
+            }
+
+        }
+
+        return result;
+    }
+
+    private List<int[]> computeLayout(ItemTreeSlot node, Set<BookmarkItem> collapsedItems,
+            Map<ItemTreeSlot, Integer> offsetFromParent) {
+        List<ItemTreeSlot> children = Collections.emptyList();
+
+        if (!collapsedItems.contains(node.ingrItem)) {
+            children = this.graph.childrenOf.getOrDefault(node, Collections.emptyList());
+        }
+
+        if (children.isEmpty()) {
+            final List<int[]> rows = new ArrayList<>();
+            rows.add(new int[] { 0, 0 });
+            return rows;
+        }
+
+        final int[] offsets = new int[children.size()];
+        final List<int[]> combined = new ArrayList<>();
+
+        for (int i = 0; i < children.size(); i++) {
+            final List<int[]> childRows = computeLayout(children.get(i), collapsedItems, offsetFromParent);
+            final int shift = i == 0 ? 0 : requiredShift(combined, childRows, X_SPACING);
+
+            offsets[i] = shift;
+            mergeContour(combined, childRows, shift);
+        }
+
+        final int selfX = (offsets[0] + offsets[children.size() - 1]) / 2;
+
+        for (int i = 0; i < children.size(); i++) {
+            offsetFromParent.put(children.get(i), offsets[i] - selfX);
+        }
+
+        for (int[] row : combined) {
+            row[0] -= selfX;
+            row[1] -= selfX;
+        }
+
+        final List<int[]> rows = new ArrayList<>(combined.size() + 1);
+        rows.add(new int[] { 0, 0 });
+        rows.addAll(combined);
+
+        return rows;
+    }
+
+    private static int requiredShift(List<int[]> existing, List<int[]> incoming, int spacing) {
+        int shift = 0;
+        final int rows = Math.min(existing.size(), incoming.size());
+
+        for (int r = 0; r < rows; r++) {
+            shift = Math.max(shift, existing.get(r)[1] + spacing - incoming.get(r)[0]);
+        }
+
+        return shift;
+    }
+
+    private static int requiredRootShift(List<int[]> existing, List<int[]> incoming) {
+        int existingRight = Integer.MIN_VALUE;
+
+        for (int[] row : existing) {
+            existingRight = Math.max(existingRight, row[1]);
+        }
+
+        int incomingLeft = Integer.MAX_VALUE;
+
+        for (int[] row : incoming) {
+            incomingLeft = Math.min(incomingLeft, row[0]);
+        }
+
+        return Math.max(0, existingRight + ROOT_SPACING - incomingLeft);
+    }
+
+    private static void mergeContour(List<int[]> target, List<int[]> source, int shift) {
+        for (int r = 0; r < source.size(); r++) {
+            final int left = source.get(r)[0] + shift;
+            final int right = source.get(r)[1] + shift;
+
+            if (r < target.size()) {
+                target.get(r)[0] = Math.min(target.get(r)[0], left);
+                target.get(r)[1] = Math.max(target.get(r)[1], right);
+            } else {
+                target.add(new int[] { left, right });
+            }
+        }
+    }
+
+    private void assignPositions(ItemTreeSlot node, int x, int y, Set<BookmarkItem> collapsedItems,
+            Map<ItemTreeSlot, Integer> offsetFromParent) {
+        this.rows.computeIfAbsent(y, ignored -> new ArrayList<>()).add(node);
+        this.pointByNode.put(node, new Point(x, y));
+
+        final int childY = y + CraftingTreeCanvas.SLOT_SIZE + Y_SPACING;
+
+        if (!collapsedItems.contains(node.ingrItem)) {
+            for (ItemTreeSlot child : this.graph.childrenOf.getOrDefault(node, Collections.emptyList())) {
+                assignPositions(child, x + offsetFromParent.get(child), childY, collapsedItems, offsetFromParent);
+            }
+        }
+
+    }
+}

src/main/java/codechicken/nei/bookmark/tree/CraftingTreeGraph.java

@@ -0,0 +1,99 @@
+package codechicken.nei.bookmark.tree;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import codechicken.nei.recipe.Recipe.RecipeId;
+
+public class CraftingTreeGraph {
+
+    public final List<ItemTreeSlot> roots = new ArrayList<>();
+    public final List<ItemTreeSlot> items = new ArrayList<>();
+    public final Map<ItemTreeSlot, ItemTreeSlot> parentOf = new HashMap<>();
+    public final Map<ItemTreeSlot, List<ItemTreeSlot>> childrenOf = new HashMap<>();
+
+    public final Set<ItemTreeSlot> subtreeMissingCache = new HashSet<>();
+    public final Set<ItemTreeSlot> childrenNeedCraftingCache = new HashSet<>();
+
+    public void rebuild(CraftingTreeMath math) {
+        this.subtreeMissingCache.clear();
+        this.childrenNeedCraftingCache.clear();
+
+        math.refresh();
+
+        this.roots.clear();
+        this.roots.addAll(math.rootSlots);
+        this.items.clear();
+        this.items.addAll(math.items);
+        this.parentOf.clear();
+        this.parentOf.putAll(math.parentOf);
+        this.childrenOf.clear();
+        this.childrenOf.putAll(math.childrenOf);
+
+        for (ItemTreeSlot root : this.roots) {
+            computeSubtreeMissing(root);
+        }
+
+        for (Map.Entry<ItemTreeSlot, List<ItemTreeSlot>> entry : this.childrenOf.entrySet()) {
+            if (entry.getValue().stream().anyMatch(child -> child.leftAmount != 0)) {
+                this.childrenNeedCraftingCache.add(entry.getKey());
+            }
+        }
+    }
+
+    public Set<RecipeId> collectUnusedRecipes(ItemTreeSlot node) {
+        final Map<RecipeId, Set<RecipeId>> children = new HashMap<>();
+        final Map<RecipeId, Set<RecipeId>> consumers = new HashMap<>();
+        int rootCount = 0;
+
+        for (ItemTreeSlot item : this.items) {
+            if (item.prefItem != null) {
+                children.computeIfAbsent(item.ingrItem.recipeId, k -> new HashSet<>()).add(item.prefItem.recipeId);
+                consumers.computeIfAbsent(item.prefItem.recipeId, k -> new HashSet<>()).add(item.ingrItem.recipeId);
+
+                if (item.ingrItem.recipeId.equals(node.prefItem.recipeId)) {
+                    rootCount++;
+                }
+            }
+        }
+
+        final Set<RecipeId> unusedRecipes = new HashSet<>();
+        final RecipeId rootRecipeId = node.prefItem.recipeId;
+
+        if (rootCount <= 1) {
+            unusedRecipes.add(rootRecipeId);
+            collectSubtree(rootRecipeId, children, consumers, unusedRecipes);
+        }
+
+        return unusedRecipes;
+    }
+
+    private void collectSubtree(RecipeId recipeId, Map<RecipeId, Set<RecipeId>> children,
+            Map<RecipeId, Set<RecipeId>> consumers, Set<RecipeId> unusedRecipes) {
+        for (RecipeId child : children.getOrDefault(recipeId, Collections.emptySet())) {
+            if (consumers.get(child).size() == 1 && unusedRecipes.add(child)) {
+                collectSubtree(child, children, consumers, unusedRecipes);
+            }
+        }
+    }
+
+    private boolean computeSubtreeMissing(ItemTreeSlot node) {
+        boolean hasMissing = !this.childrenOf.containsKey(node);
+
+        for (ItemTreeSlot child : this.childrenOf.getOrDefault(node, Collections.emptyList())) {
+            hasMissing |= child.leftAmount != 0 && computeSubtreeMissing(child);
+        }
+
+        if (hasMissing) {
+            this.subtreeMissingCache.add(node);
+        }
+
+        return hasMissing;
+    }
+
+}

src/main/java/codechicken/nei/bookmark/tree/CraftingTreeMath.java

@@ -0,0 +1,149 @@
+package codechicken.nei.bookmark.tree;
+
+import java.util.ArrayDeque;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Deque;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import codechicken.nei.bookmark.BookmarkItem;
+import codechicken.nei.bookmark.BookmarkItem.BookmarkItemType;
+import codechicken.nei.recipe.Recipe.RecipeId;
+import codechicken.nei.recipe.chain.RecipeChainMath;
+
+public class CraftingTreeMath extends RecipeChainMath {
+
+    public final List<ItemTreeSlot> rootSlots = new ArrayList<>();
+    public final List<ItemTreeSlot> items = new ArrayList<>();
+    public final Map<ItemTreeSlot, ItemTreeSlot> parentOf = new HashMap<>();
+    public final Map<ItemTreeSlot, List<ItemTreeSlot>> childrenOf = new HashMap<>();
+
+    private final Deque<ItemTreeSlot> parentStack = new ArrayDeque<>();
+    private ItemTreeSlot lastItem = null;
+
+    public CraftingTreeMath(List<BookmarkItem> chainItems, Set<RecipeId> collapsedRecipes) {
+        super(chainItems, collapsedRecipes);
+    }
+
+    @Override
+    public RecipeChainMath refresh() {
+        this.rootSlots.clear();
+        this.items.clear();
+        this.parentOf.clear();
+        this.childrenOf.clear();
+        this.parentStack.clear();
+        this.lastItem = null;
+
+        return super.refresh();
+    }
+
+    @Override
+    protected void calculationStepTrigger(BookmarkItem ingrItem, BookmarkItem prefItem, long requestedAmount,
+            long containerAmount, long inventoryAmount, long ingrAmount, long produced) {
+
+        if (ingrItem.type == BookmarkItemType.RESULT) {
+            final ItemTreeSlot slot = new ItemTreeSlot(
+                    ingrItem,
+                    Math.max(0, this.requiredAmount.get(prefItem) - requestedAmount),
+                    requestedAmount,
+                    this.requiredAmount.get(prefItem),
+                    0,
+                    prefItem);
+
+            this.rootSlots.add(slot);
+            this.items.add(slot);
+
+            this.lastItem = slot;
+        } else {
+
+            if (prefItem != null && hasContainerItem(prefItem.itemStack)) {
+
+                if (requestedAmount > 1) {
+                    final long requestedSteps = getToolsContainerItems(
+                            prefItem.itemStack.copy(),
+                            requestedAmount).leftSteps;
+                    requestedAmount = (long) Math
+                            .ceil((double) requestedAmount / Math.max(1, requestedAmount - requestedSteps));
+                }
+
+                if (containerAmount > 1) {
+                    final long containerSteps = getToolsContainerItems(
+                            prefItem.itemStack.copy(),
+                            containerAmount).leftSteps;
+                    containerAmount = (long) Math
+                            .ceil((double) containerAmount / Math.max(1, containerAmount - containerSteps));
+                }
+            }
+
+            final ItemTreeSlot slot = new ItemTreeSlot(
+                    ingrItem,
+                    0,
+                    requestedAmount,
+                    produced,
+                    containerAmount,
+                    prefItem);
+
+            this.items.add(slot);
+            this.parentOf.put(slot, this.parentStack.peek());
+            this.childrenOf.computeIfAbsent(this.parentStack.peek(), k -> new ArrayList<>()).add(slot);
+
+            this.lastItem = slot;
+        }
+    }
+
+    @Override
+    protected void prepareIngredients(RecipeId recipeId, long multiplier, List<RecipeId> visited) {
+        this.parentStack.push(this.lastItem);
+        super.prepareIngredients(recipeId, multiplier, visited);
+        this.lastItem = this.parentStack.pop();
+    }
+
+    @Override
+    protected void calculateSuitableRecipe(BookmarkItem ingrItem, long ingrMultiplier, List<RecipeId> visited) {
+        final BookmarkItem prefItem = this.preferredItems.get(ingrItem);
+        super.calculateSuitableRecipe(ingrItem, ingrMultiplier, visited);
+
+        if (prefItem != null && !isForeignBoxBoundary(ingrItem)
+                && !visited.contains(prefItem.recipeId)
+                && !this.childrenOf.containsKey(this.lastItem)) {
+            visited.add(prefItem.recipeId);
+            prepareIngredients(prefItem.recipeId, visited);
+            visited.remove(prefItem.recipeId);
+        }
+
+    }
+
+    protected void prepareIngredients(RecipeId recipeId, List<RecipeId> visited) {
+        this.parentStack.push(this.lastItem);
+
+        for (BookmarkItem item : this.ingredientsByRecipe.getOrDefault(recipeId, Collections.emptyList())) {
+            if (!item.emptyFactor()) {
+                calculateSuitableRecipe(item, visited);
+            }
+        }
+
+        this.lastItem = this.parentStack.pop();
+    }
+
+    protected void calculateSuitableRecipe(BookmarkItem ingrItem, List<RecipeId> visited) {
+        final BookmarkItem prefItem = this.preferredItems.get(ingrItem);
+        final ItemTreeSlot slot = new ItemTreeSlot(ingrItem, 0, 0, 0, 0, prefItem);
+
+        this.items.add(slot);
+        this.parentOf.put(slot, this.parentStack.peek());
+        this.childrenOf.computeIfAbsent(this.parentStack.peek(), k -> new ArrayList<>()).add(slot);
+
+        this.lastItem = slot;
+
+        if (prefItem != null && !isForeignBoxBoundary(ingrItem) && !visited.contains(prefItem.recipeId)) {
+            visited.add(prefItem.recipeId);
+            prepareIngredients(prefItem.recipeId, visited);
+            visited.remove(prefItem.recipeId);
+        }
+
+    }
+
+}

src/main/java/codechicken/nei/bookmark/tree/CraftingTreeState.java

@@ -0,0 +1,119 @@
+package codechicken.nei.bookmark.tree;
+
+import java.util.EnumSet;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.WeakHashMap;
+
+import codechicken.nei.NEIClientConfig;
+import codechicken.nei.bookmark.BookmarkGroup;
+import codechicken.nei.bookmark.BookmarkItem;
+
+class CraftingTreeState {
+
+    enum CollapseMode {
+        EXPANDED,
+        SMART,
+        ALL
+    }
+
+    enum StatsSection {
+        INGREDIENTS_NEEDED,
+        INGREDIENTS_AVAILABLE,
+        CRAFTING_NEEDED,
+        CRAFTING_AVAILABLE,
+        RESULTS,
+        REMAINDERS,
+        HANDLERS
+    }
+
+    private static final Map<BookmarkGroup, CraftingTreeState> GROUP_STATES = new WeakHashMap<>();
+
+    private static final String KEY_STATS_VISIBLE = "craftingTree.statsVisible";
+    private static final String KEY_STATS_SECTIONS = "craftingTree.statsSections";
+    private static final String KEY_USE_INVENTORY_SNAPSHOT = "craftingTree.useInventorySnapshot";
+    private static final String KEY_COLLAPSE_MODE = "craftingTree.collapseMode";
+
+    public boolean statsPanelVisible = true;
+    public final Set<StatsSection> visibleStatsSections = EnumSet.allOf(StatsSection.class);
+    public boolean useInventorySnapshot = false;
+    public CollapseMode collapseMode = CollapseMode.EXPANDED;
+
+    public boolean initialized;
+    public final Camera camera = new Camera();
+    public final Set<BookmarkItem> collapsedItems = new HashSet<>();
+    public ItemTreeSlot replaceRecipeNode;
+
+    public SearchResult searchItemResult;
+    public SearchResult searchStatsResult;
+
+    public void load() {
+        this.statsPanelVisible = !NEIClientConfig.world.nbt.hasKey(KEY_STATS_VISIBLE)
+                || NEIClientConfig.world.nbt.getBoolean(KEY_STATS_VISIBLE);
+
+        final int savedSectionsMask = NEIClientConfig.world.nbt.hasKey(KEY_STATS_SECTIONS)
+                ? NEIClientConfig.world.nbt.getInteger(KEY_STATS_SECTIONS)
+                : -1;
+
+        this.visibleStatsSections.clear();
+
+        for (StatsSection section : StatsSection.values()) {
+            if ((savedSectionsMask & (1 << section.ordinal())) != 0) {
+                this.visibleStatsSections.add(section);
+            }
+        }
+
+        this.useInventorySnapshot = NEIClientConfig.world.nbt.getBoolean(KEY_USE_INVENTORY_SNAPSHOT);
+
+        final CollapseMode[] collapseModes = CollapseMode.values();
+        final int savedCollapseMode = NEIClientConfig.world.nbt.getInteger(KEY_COLLAPSE_MODE);
+        this.collapseMode = savedCollapseMode >= 0 && savedCollapseMode < collapseModes.length
+                ? collapseModes[savedCollapseMode]
+                : CollapseMode.EXPANDED;
+        this.replaceRecipeNode = null;
+        this.searchItemResult = null;
+        this.searchStatsResult = null;
+        this.camera.endDrag();
+    }
+
+    public void toggleStatsPanelVisible() {
+        this.statsPanelVisible = !this.statsPanelVisible;
+        NEIClientConfig.world.nbt.setBoolean(KEY_STATS_VISIBLE, this.statsPanelVisible);
+    }
+
+    public void toggleStatsSection(StatsSection section) {
+
+        if (!this.visibleStatsSections.remove(section)) {
+            this.visibleStatsSections.add(section);
+        }
+
+        int mask = 0;
+
+        for (StatsSection visibleSection : this.visibleStatsSections) {
+            mask |= 1 << visibleSection.ordinal();
+        }
+
+        NEIClientConfig.world.nbt.setInteger(KEY_STATS_SECTIONS, mask);
+    }
+
+    public void toggleUseInventorySnapshot() {
+        this.useInventorySnapshot = !this.useInventorySnapshot;
+        NEIClientConfig.world.nbt.setBoolean(KEY_USE_INVENTORY_SNAPSHOT, this.useInventorySnapshot);
+    }
+
+    public void cycleCollapseMode() {
+        final CollapseMode[] collapseModes = CollapseMode.values();
+        this.collapseMode = collapseModes[(this.collapseMode.ordinal() + 1) % collapseModes.length];
+        NEIClientConfig.world.nbt.setInteger(KEY_COLLAPSE_MODE, this.collapseMode.ordinal());
+    }
+
+    public static CraftingTreeState of(BookmarkGroup group) {
+        return GROUP_STATES.computeIfAbsent(group, g -> new CraftingTreeState());
+    }
+
+    public SearchResult activeSearchResult() {
+        return this.searchItemResult != null ? this.searchItemResult : this.searchStatsResult;
+    }
+
+}

src/main/java/codechicken/nei/bookmark/tree/CraftingTreeToolbar.java

@@ -0,0 +1,241 @@
+package codechicken.nei.bookmark.tree;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.function.BooleanSupplier;
+import java.util.function.Supplier;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.GuiButton;
+
+import org.lwjgl.opengl.GL11;
+
+import codechicken.nei.GuiNEIButton;
+import codechicken.nei.NEIClientUtils;
+import codechicken.nei.drawable.DrawableBuilder;
+import codechicken.nei.drawable.DrawableResource;
+
+class CraftingTreeToolbar {
+
+    private static class GuiStatsButton extends GuiNEIButton {
+
+        private final Supplier<DrawableResource> icon;
+        private final BooleanSupplier isEnabled;
+        private final Supplier<String> tooltip;
+
+        public GuiStatsButton(int buttonId, Supplier<DrawableResource> icon, Supplier<String> tooltip,
+                BooleanSupplier isEnabled) {
+            super(buttonId, 0, 0, 16, 16, "");
+            this.tooltip = tooltip;
+            this.icon = icon;
+            this.isEnabled = isEnabled;
+        }
+
+        public String getTooltip() {
+            return this.tooltip.get();
+        }
+
+        @Override
+        public int getHoverState(boolean mouseOver) {
+            return this.isEnabled.getAsBoolean() ? 0 : super.getHoverState(mouseOver);
+        }
+
+        @Override
+        protected void drawContent(Minecraft minecraft, int y, int x, boolean mouseOver) {
+            final DrawableResource icon = this.icon.get();
+            final int iconX = this.xPosition + (this.width - icon.width / 2) / 2;
+            final int iconY = this.yPosition + (this.height - icon.height / 2) / 2;
+
+            GL11.glPushMatrix();
+            GL11.glColor4f(1, 1, 1, 1);
+            GL11.glEnable(GL11.GL_BLEND);
+            GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
+            GL11.glTranslated(iconX, iconY, 0);
+            GL11.glScalef(0.5f, 0.5f, 1);
+
+            icon.bindTexture();
+            GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_LINEAR);
+            GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_LINEAR);
+            icon.draw(0, 0);
+            GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_NEAREST);
+            GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);
+
+            GL11.glDisable(GL11.GL_BLEND);
+            GL11.glPopMatrix();
+        }
+
+    }
+
+    private static final DrawableResource STATS_TEXTURE = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            2,
+            66,
+            16,
+            16).build();
+
+    private static final DrawableResource COMPACT_STATS_TEXTURE = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            20,
+            66,
+            16,
+            16).build();
+
+    private static final DrawableResource FIT_TEXTURE = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            38,
+            66,
+            16,
+            16).build();
+
+    private static final DrawableResource INV_TEXTURE = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            56,
+            66,
+            16,
+            16).build();
+
+    private static final DrawableResource LINK_TEXTURE = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            74,
+            66,
+            16,
+            16).build();
+
+    private static final DrawableResource ICON_COLLAPSED = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            92,
+            66,
+            16,
+            16).build();
+
+    private static final DrawableResource ICON_INDETERMINATE = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            110,
+            66,
+            16,
+            16).build();
+
+    private static final DrawableResource ICON_EXPANDED = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            128,
+            66,
+            16,
+            16).build();
+
+    private static final DrawableResource ICON_SCREENSHOT = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            146,
+            66,
+            16,
+            16).build();
+
+    private static final DrawableResource ICON_SETTINGS = new DrawableBuilder(
+            "nei:textures/gui/craftingtree.png",
+            164,
+            66,
+            16,
+            16).build();
+
+    private static final int BUTTON_SPACING = 20;
+
+    public static final int INV_BUTTON_ID = 0;
+    public static final int FIT_BUTTON_ID = 1;
+    public static final int COLLAPSE_ALL_BUTTON_ID = 2;
+    public static final int TOGGLE_STATS_BUTTON_ID = 3;
+    public static final int STATS_SECTIONS_BUTTON_ID = 4;
+    public static final int LINK_BUTTON_ID = 5;
+    public static final int SCREENSHOT_BUTTON_ID = 6;
+
+    private final CraftingTreeState uiState;
+    private final GuiStatsButton[] buttons;
+
+    public CraftingTreeToolbar(CraftingTreeState uiState) {
+        this.uiState = uiState;
+
+        this.buttons = new GuiStatsButton[] {
+                new GuiStatsButton(
+                        INV_BUTTON_ID,
+                        () -> INV_TEXTURE,
+                        () -> NEIClientUtils.translate(
+                                this.uiState.useInventorySnapshot ? "bookmark.tree.toolbar.inventory_on"
+                                        : "bookmark.tree.toolbar.inventory_off"),
+                        () -> this.uiState.useInventorySnapshot),
+
+                new GuiStatsButton(
+                        FIT_BUTTON_ID,
+                        () -> FIT_TEXTURE,
+                        () -> NEIClientUtils.translate("bookmark.tree.toolbar.fit_to_view"),
+                        () -> false),
+
+                new GuiStatsButton(COLLAPSE_ALL_BUTTON_ID, () -> switch (this.uiState.collapseMode) {
+                case EXPANDED -> ICON_EXPANDED;
+                case SMART -> ICON_INDETERMINATE;
+                case ALL -> ICON_COLLAPSED;
+                }, () -> NEIClientUtils.translate(switch (this.uiState.collapseMode) {
+                case EXPANDED -> "bookmark.tree.toolbar.collapse_resolved";
+                case SMART -> "bookmark.tree.toolbar.collapse_all";
+                case ALL -> "bookmark.tree.toolbar.expand_all";
+                }), () -> this.uiState.collapseMode != CraftingTreeState.CollapseMode.EXPANDED),
+
+                new GuiStatsButton(
+                        TOGGLE_STATS_BUTTON_ID,
+                        () -> this.uiState.visibleStatsSections.size() == CraftingTreeState.StatsSection.values().length
+                                ? STATS_TEXTURE
+                                : COMPACT_STATS_TEXTURE,
+                        () -> NEIClientUtils.translate(
+                                this.uiState.statsPanelVisible ? "bookmark.tree.toolbar.stats_on"
+                                        : "bookmark.tree.toolbar.stats_off"),
+                        () -> this.uiState.statsPanelVisible),
+
+                new GuiStatsButton(
+                        STATS_SECTIONS_BUTTON_ID,
+                        () -> ICON_SETTINGS,
+                        () -> NEIClientUtils.translate("bookmark.tree.toolbar.stats_sections"),
+                        () -> false),
+                new GuiStatsButton(
+                        LINK_BUTTON_ID,
+                        () -> LINK_TEXTURE,
+                        () -> NEIClientUtils.translate("bookmark.tree.toolbar.link"),
+                        () -> false),
+                new GuiStatsButton(
+                        SCREENSHOT_BUTTON_ID,
+                        () -> ICON_SCREENSHOT,
+                        () -> NEIClientUtils.translate("bookmark.tree.toolbar.screenshot"),
+                        () -> false)
+
+        };
+    }
+
+    public void layout(int x, int y) {
+        for (int i = 0; i < this.buttons.length; i++) {
+            this.buttons[i].xPosition = x + BUTTON_SPACING * i;
+            this.buttons[i].yPosition = y;
+        }
+    }
+
+    public void addTo(List<GuiButton> buttonList) {
+        buttonList.addAll(Arrays.asList(this.buttons));
+    }
+
+    public GuiButton getButton(int buttonId) {
+
+        for (int i = 0; i < this.buttons.length; i++) {
+            if (this.buttons[i].id == buttonId) {
+                return this.buttons[i];
+            }
+        }
+
+        return null;
+    }
+
+    public String getTooltip(Minecraft mc, int mousex, int mousey) {
+        for (GuiStatsButton button : this.buttons) {
+            if (button.mousePressed(mc, mousex, mousey)) {
+                return button.getTooltip();
+            }
+        }
+
+        return null;
+    }
+
+}