Add config GUI

src/main/java/com/tterrag/blurbg/BlurBG.java

@@ -8,6 +8,8 @@ import org.apache.commons.lang3.ArrayUtils;
 
 import com.google.common.base.Throwables;
 
+import static com.tterrag.blurbg.BlurBG.*;
+
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.GuiChat;
 import net.minecraft.client.renderer.EntityRenderer;
@@ -18,6 +20,7 @@ import net.minecraft.util.ResourceLocation;
 import net.minecraftforge.client.event.GuiOpenEvent;
 import net.minecraftforge.common.MinecraftForge;
 import net.minecraftforge.common.config.Configuration;
+import net.minecraftforge.fml.client.event.ConfigChangedEvent.OnConfigChangedEvent;
 import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.common.Mod.EventHandler;
 import net.minecraftforge.fml.common.Mod.Instance;
@@ -27,12 +30,18 @@ import net.minecraftforge.fml.common.gameevent.TickEvent.Phase;
 import net.minecraftforge.fml.common.gameevent.TickEvent.RenderTickEvent;
 import net.minecraftforge.fml.relauncher.ReflectionHelper;
 
-@Mod(modid = "blurbg", name = "BlurBG", version = "@VERSION@", acceptedMinecraftVersions = "[1.9, 1.12)", clientSideOnly = true)
+@Mod(modid = MODID, name = MOD_NAME, version = VERSION, acceptedMinecraftVersions = "[1.9, 1.12)", clientSideOnly = true, guiFactory = "com.tterrag.blurbg.config.BlurGuiFactory")
 public class BlurBG {
     
+    public static final String MODID = "blurbg";
+    public static final String MOD_NAME = "BlurBG";
+    public static final String VERSION = "@VERSION@";
+    
     @Instance
     public static BlurBG instance;
     
+    public Configuration config;
+    
     private String[] blurExclusions;
 
     private Field _listShaders;
@@ -45,7 +54,11 @@ public class BlurBG {
     public void preInit(FMLPreInitializationEvent event) {
         MinecraftForge.EVENT_BUS.register(this);
         
-        Configuration config = new Configuration(new File(event.getModConfigurationDirectory(), "blurbg.cfg"));
+        config = new Configuration(new File(event.getModConfigurationDirectory(), "blurbg.cfg"));
+        saveConfig();
+    }
+    
+    private void saveConfig() {
         
         blurExclusions = config.getStringList("guiExclusions", Configuration.CATEGORY_GENERAL, new String[] {
                 GuiChat.class.getName(),
@@ -66,6 +79,13 @@ public class BlurBG {
         config.save();
     }
     
+    @SubscribeEvent
+    public void onConfigChanged(OnConfigChangedEvent event) {
+        if (event.getModID().equals(MODID)) {
+            saveConfig();
+        }
+    }
+    
     @SuppressWarnings("null")
     @SubscribeEvent
     public void onGuiChange(GuiOpenEvent event) {

src/main/java/com/tterrag/blurbg/config/BlurConfigGui.java

@@ -0,0 +1,15 @@
+package com.tterrag.blurbg.config;
+
+import com.tterrag.blurbg.BlurBG;
+
+import net.minecraft.client.gui.GuiScreen;
+import net.minecraftforge.common.config.ConfigElement;
+import net.minecraftforge.common.config.Configuration;
+import net.minecraftforge.fml.client.config.GuiConfig;
+
+public class BlurConfigGui extends GuiConfig {
+
+    public BlurConfigGui(GuiScreen parentScreen) {
+        super(parentScreen, new ConfigElement(BlurBG.instance.config.getCategory(Configuration.CATEGORY_GENERAL)).getChildElements(), "blurbg", false, false, "blurbg.config.title");
+    }
+}

src/main/java/com/tterrag/blurbg/config/BlurGuiFactory.java

@@ -0,0 +1,30 @@
+package com.tterrag.blurbg.config;
+
+import java.util.Set;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.GuiScreen;
+import net.minecraftforge.fml.client.IModGuiFactory;
+
+public class BlurGuiFactory implements IModGuiFactory {
+
+    @Override
+    public void initialize(Minecraft minecraftInstance) {}
+
+    @Override
+    public Class<? extends GuiScreen> mainConfigGuiClass() {
+        return BlurConfigGui.class;
+    }
+
+    @Override
+    public Set<RuntimeOptionCategoryElement> runtimeGuiCategories() {
+        return null;
+    }
+
+    @Override
+    @Deprecated
+    public RuntimeOptionGuiHandler getHandlerFor(RuntimeOptionCategoryElement element) {
+        return null;
+    }
+
+}

src/main/resources/mcmod.info

@@ -0,0 +1,16 @@
+[
+{
+  "modid": "blurbg",
+  "name": "BlurBG",
+  "description": "Adds a blurry background when viewing GUIs",
+  "version": "${version}",
+  "mcversion": "${mcversion}",
+  "url": "http://tterrag.com",
+  "updateUrl": "http://ci.tterrag.com/job/BlurBG",
+  "authorList": ["tterrag"],
+  "credits": "",
+  "logoFile": "",
+  "screenshots": [],
+  "dependencies": []
+}
+]