Add in game GUI to configure client preference (#852)

* Add in game GUI to configure client preference

* Fix backslash

2 files changed, 73 insertions, 0 deletions

diff --git a/src/main/java/gregtech/client/GT_GUI_ClientConfig.java b/src/main/java/gregtech/client/GT_GUI_ClientConfig.java
new file mode 100644
index 0000000000..436be7d1df
--- /dev/null
+++ b/src/main/java/gregtech/client/GT_GUI_ClientConfig.java
@@ -0,0 +1,44 @@
+package gregtech.client;
+
+import cpw.mods.fml.client.config.GuiConfig;
+import cpw.mods.fml.client.config.IConfigElement;
+import gregtech.api.GregTech_API;
+import net.minecraft.client.gui.GuiScreen;
+import net.minecraftforge.common.config.ConfigCategory;
+import net.minecraftforge.common.config.ConfigElement;
+import net.minecraftforge.common.config.Configuration;
+import net.minecraftforge.common.config.Property;
+
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+public class GT_GUI_ClientConfig extends GuiConfig {
+	public GT_GUI_ClientConfig(GuiScreen parentScreen) {
+		super(parentScreen, getConfigElements(), "gregtech", "client", false, false, getAbridgedConfigPath(GregTech_API.sClientDataFile.mConfig.toString()));
+	}
+
+	@SuppressWarnings("rawtypes")
+	private static List<IConfigElement> getConfigElements() {
+		final Configuration config = GregTech_API.sClientDataFile.mConfig;
+		setLanguageKeys(config);
+		return config.getCategoryNames().stream()
+				.filter(name -> name.indexOf('.') == -1)
+				.map(name -> new ConfigElement(config.getCategory(name)))
+				.collect(Collectors.toList());
+	}
+
+	private static void setLanguageKeys(Configuration config) {
+		for (String categoryName : config.getCategoryNames()) {
+			ConfigCategory category = config.getCategory(categoryName);
+			category.setLanguageKey("GT5U.config." + categoryName);
+			for (Map.Entry<String, Property> entry : category.entrySet()) {
+				// drop the default value in name
+				String name = entry.getKey();
+				int defaultStart = name.lastIndexOf('_');
+				String realName = defaultStart >= 0 ? name.substring(0, defaultStart) : name;
+				entry.getValue().setLanguageKey(String.format("%s.%s", category.getLanguagekey(), realName));
+			}
+		}
+	}
+}
diff --git a/src/main/java/gregtech/client/GT_GuiFactory.java b/src/main/java/gregtech/client/GT_GuiFactory.java
new file mode 100644
index 0000000000..6bc489e297
--- /dev/null
+++ b/src/main/java/gregtech/client/GT_GuiFactory.java
@@ -0,0 +1,29 @@
+package gregtech.client;
+
+import cpw.mods.fml.client.IModGuiFactory;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.GuiScreen;
+
+import java.util.Set;
+
+public class GT_GuiFactory implements IModGuiFactory {
+	@Override
+	public void initialize(Minecraft minecraftInstance) {
+
+	}
+
+	@Override
+	public Class<? extends GuiScreen> mainConfigGuiClass() {
+		return GT_GUI_ClientConfig.class;
+	}
+
+	@Override
+	public Set<RuntimeOptionCategoryElement> runtimeGuiCategories() {
+		return null;
+	}
+
+	@Override
+	public RuntimeOptionGuiHandler getHandlerFor(RuntimeOptionCategoryElement element) {
+		return null;
+	}
+}