update config library, now the GUI supports multiple config classes at once

src/main/java/com/falsepattern/lib/config/ConfigurationManager.java

@@ -24,9 +24,12 @@ import com.falsepattern.lib.StableAPI;
 import com.falsepattern.lib.internal.impl.config.ConfigurationManagerImpl;
 import lombok.AccessLevel;
 import lombok.NoArgsConstructor;
+import lombok.val;
 
 import cpw.mods.fml.client.config.IConfigElement;
 
+import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 
 /**
@@ -56,4 +59,26 @@ public class ConfigurationManager {
     public static List<IConfigElement> getConfigElements(Class<?> configClass) throws ConfigException {
         return ConfigurationManagerImpl.getConfigElements(configClass);
     }
+
+    /**
+     * Same as {@link #getConfigElements(Class)}, but for multiple config classes at once.
+     *
+     * @param configClasses The classes to process.
+     *
+     * @return The configuration elements.
+     */
+    @SuppressWarnings("rawtypes")
+    @StableAPI(since = "0.10.0")
+    public static List<IConfigElement> getConfigElementsMulti(Class<?>... configClasses) throws ConfigException {
+        switch (configClasses.length) {
+            case 0: return Collections.emptyList();
+            case 1: return getConfigElements(configClasses[0]);
+            default:
+                val result = new ArrayList<IConfigElement>();
+                for (val configClass: configClasses) {
+                    result.addAll(getConfigElements(configClass));
+                }
+                return result;
+        }
+    }
 }

src/main/java/com/falsepattern/lib/config/SimpleGuiConfig.java

@@ -21,16 +21,28 @@
 package com.falsepattern.lib.config;
 
 import com.falsepattern.lib.StableAPI;
+import lombok.val;
+
 import cpw.mods.fml.client.config.GuiConfig;
+import cpw.mods.fml.client.config.IConfigElement;
 import cpw.mods.fml.relauncher.Side;
 import cpw.mods.fml.relauncher.SideOnly;
 import net.minecraft.client.gui.GuiScreen;
 import net.minecraft.client.resources.I18n;
 
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
 @SideOnly(Side.CLIENT)
 @StableAPI(since = "0.9.0")
 public class SimpleGuiConfig extends GuiConfig {
     public SimpleGuiConfig(GuiScreen parent, Class<?> configClass, String modID, String modName) throws ConfigException {
-        super(parent, ConfigurationManager.getConfigElements(configClass), modID, false, false, modName + " Configuration", I18n.format("falsepatternlib.gui.config.description"));
+        this(parent, new Class<?>[]{configClass}, modID, modName);
+    }
+
+    @StableAPI(since = "0.10.0")
+    public SimpleGuiConfig(GuiScreen parent, Class<?>[] configClasses, String modID, String modName) throws ConfigException {
+        super(parent, ConfigurationManager.getConfigElementsMulti(configClasses), modID, false, false, modName + " Configuration", I18n.format("falsepatternlib.gui.config.description"));
     }
 }