Chisel/src/main/java/team/chisel/client/gui/GuiChisel.java

package team.chisel.client.gui;

import com.cricketcraft.chisel.api.IAdvancedChisel;
import com.cricketcraft.chisel.api.IChiselItem;
import com.cricketcraft.chisel.api.carving.IChiselMode;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.client.gui.GuiButton;
import net.minecraft.client.gui.inventory.GuiContainer;
import net.minecraft.client.resources.I18n;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.InventoryPlayer;
import net.minecraft.inventory.Slot;
import net.minecraft.item.ItemStack;
import net.minecraft.util.ResourceLocation;
import org.lwjgl.opengl.GL11;
import team.chisel.client.gui.widgets.GuiButtonChiselMode;
import team.chisel.inventory.ContainerChisel;
import team.chisel.inventory.InventoryChiselSelection;
import team.chisel.inventory.SlotChiselInput;
import team.chisel.item.chisel.ChiselMode;
import team.chisel.network.PacketHandler;
import team.chisel.network.message.MessageChiselMode;
import team.chisel.utils.General;

import static team.chisel.Chisel.MOD_ID;

@SideOnly(Side.CLIENT)
public class GuiChisel extends GuiContainer {

	public static final ResourceLocation TEXTURE_RESOURCE_LOCATION = new ResourceLocation(MOD_ID, "textures/chisel2GuiScroll.png");
	public static final int TEXTURE_WIDTH = 266;
	public static final int TEXTURE_HEIGHT = 250;
	public static final int GUI_WIDTH = 266;
	public static final int GUI_HEIGHT = 202;
	public static final int CHISEL_INPUT_SIZE = 48;
	private EntityPlayer player;
	private ContainerChisel container;
	private IChiselMode currentMode;

	public GuiChisel(InventoryPlayer iinventory, InventoryChiselSelection menu) {
		super(new ContainerChisel(iinventory, menu));
		player = iinventory.player;
		xSize = GUI_WIDTH;
		ySize = GUI_HEIGHT;

		container = (ContainerChisel) inventorySlots;
	}

	@Override
	public void onGuiClosed() {
		super.onGuiClosed();
		inventorySlots.onContainerClosed(player);
	}

	@Override
	@SuppressWarnings("unchecked")
	public void initGui() {
		super.initGui();
		currentMode = General.getChiselMode(container.chisel);

		if (showMode()) {
			buttonList.add(new GuiButtonChiselMode(0, guiLeft + 12, guiTop + 132, this));
		}
	}

	@Override
	public void updateScreen() {
		super.updateScreen();
		final ItemStack held = player.getCurrentEquippedItem();
		if (held == null || !(held.getItem() instanceof IChiselItem)) {
			mc.displayGuiScreen(null);
		}
	}

	private boolean showMode() {
		return container.chisel != null
				&& container.chisel.getItem() instanceof IChiselItem
				&& ((IChiselItem) container.chisel.getItem()).hasModes(container.chisel);
	}

	@Override
	protected void drawGuiContainerForegroundLayer(final int mouseX, final int mouseY) {
		GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);

		final String titleText = I18n.format(container.inventory.getInventoryName() + ".title");
		fontRendererObj.drawSplitString(titleText, 50 - fontRendererObj.getStringWidth(titleText) / 2, 60, 40, 0x404040);

		if (showMode()) {
			final String modeText = I18n.format(container.inventory.getInventoryName() + ".mode");
			fontRendererObj.drawString(modeText, 12 + (GuiButtonChiselMode.BUTTON_WIDTH - fontRendererObj.getStringWidth(modeText)) / 2, 122, 0x404040);
		}
	}

	@Override
	protected void drawGuiContainerBackgroundLayer(final float partialTicks, final int mouseX, final int mouseY) {
		GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
		GL11.glDisable(GL11.GL_LIGHTING);

		mc.getTextureManager().bindTexture(TEXTURE_RESOURCE_LOCATION);
		// drawModalRectWithCustomSizedTexture: x, y, u, v, width, height, textureWidth, textureHeight
		func_146110_a(guiLeft, guiTop, 0, 0, xSize, ySize, TEXTURE_WIDTH, TEXTURE_HEIGHT);

		Slot main = (Slot) container.inventorySlots.get(InventoryChiselSelection.normalSlots);
		if (main.getStack() == null) {
			func_146110_a(guiLeft + 8, guiTop + 8, 0, GUI_HEIGHT, CHISEL_INPUT_SIZE, CHISEL_INPUT_SIZE, TEXTURE_WIDTH, TEXTURE_HEIGHT);
		}
	}

	@Override
	protected void actionPerformed(final GuiButton button) {
		if (button.id == 0) {
			if (container.chisel != null && container.chisel.getItem() instanceof IAdvancedChisel) {
				final IAdvancedChisel item = (IAdvancedChisel) container.chisel.getItem();
				currentMode = item.getNextMode(container.chisel, currentMode);
			} else {
				currentMode = ChiselMode.next(currentMode);
			}
			PacketHandler.INSTANCE.sendToServer(new MessageChiselMode(currentMode));
		}
		super.actionPerformed(button);
	}

	@Override
	protected void func_146977_a(final Slot slot) {
		if (slot instanceof SlotChiselInput) {
			GL11.glPushMatrix();
			GL11.glScalef(2, 2, 2);
			slot.xDisplayPosition -= 16;
			slot.yDisplayPosition -= 16;
			super.func_146977_a(slot);
			slot.xDisplayPosition += 16;
			slot.yDisplayPosition += 16;
			GL11.glPopMatrix();
		} else {
			super.func_146977_a(slot);
		}
	}

	public IChiselMode getCurrentMode() {
		return currentMode;
	}
}