fixes Wireless Manager (#1336)

src/main/java/appeng/client/gui/implementations/GuiWirelessNetworkManager.java

@@ -40,7 +40,7 @@ public class GuiWirelessNetworkManager extends AEBaseGui {
         this.addButtons();
         this.renameField.setFocused(false);
         this.renameField.setVisible(false);
-        this.renameField.setMaxStringLength(96);
+        this.renameField.setMaxStringLength(15);
     }
 
     private void addButtons() {

src/main/java/appeng/client/gui/widgets/GuiColorButton.java

@@ -59,18 +59,24 @@ public class GuiColorButton extends GuiAeButton {
                     GuiColors.ColorButtonOutline.getColor());
 
             if (this.drawDisplayString && !Objects.equals(this.displayString, "")) {
-                this.drawCenteredString(
-                        mc.fontRenderer,
+                mc.fontRenderer.drawString(
                         this.displayString,
-                        this.xPosition + this.width / 2,
+                        this.xPosition + this.width / 2 - mc.fontRenderer.getStringWidth(this.displayString) / 2,
                         this.yPosition + (this.height - 8) / 2,
-                        Integer.MAX_VALUE);
+                        this.getTextColor());
             }
 
             this.mouseDragged(mc, mouseX, mouseY);
         }
     }
 
+    private int getTextColor() {
+        final int color = this.color.mediumVariant;
+        return ((0.2126 * ((color >> 16) & 0xFF) + 0.7152 * ((color >> 8) & 0xFF) + 0.0722 * (color & 0xFF)) > 128)
+                ? 0xFF000000
+                : 0xFFFFFFFF;
+    }
+
     public AEColor getColor() {
         return color;
     }

src/main/java/appeng/container/implementations/ContainerWirelessNetworkManager.java

@@ -116,8 +116,26 @@ public class ContainerWirelessNetworkManager extends AEBaseContainer {
     private void remove(final byte color) {
         final NBTTagCompound data = ItemStackNBT.get(this.terminal);
         final NBTTagCompound keys = data.getCompoundTag("encryptionKeys");
-        keys.removeTag(AEColor.values()[color].name());
-        keys.removeTag(AEColor.values()[color].name() + "Name");
+
+        final String key = AEColor.values()[color].name();
+        final String encryptionKey = keys.getString(key);
+        final String currentEncryptionKey = data.getString("encryptionKey");
+
+        if (encryptionKey.equals(currentEncryptionKey)) {
+            data.removeTag("encryptionKey");
+
+            for (int i = 0; i < 16; i++) {
+                final String tempKey = AEColor.values()[i].name();
+                if (tempKey.equals(key)) continue;
+                if (keys.hasKey(tempKey)) {
+                    data.setString("encryptionKey", keys.getString(tempKey));
+                    break;
+                }
+            }
+        }
+
+        keys.removeTag(key);
+        keys.removeTag(key + "Name");
         if (Platform.isServer()) this.checkItem(this.getTarget());
     }