Applied-Energistics-2-tilera-Edition/src/main/java/appeng/client/gui/widgets/GuiTabButton.java

/*
 * This file is part of Applied Energistics 2.
 * Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved.
 *
 * Applied Energistics 2 is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Applied Energistics 2 is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Applied Energistics 2.  If not, see <http://www.gnu.org/licenses/lgpl>.
 */

package appeng.client.gui.widgets;

import appeng.client.texture.ExtraBlockTextures;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.FontRenderer;
import net.minecraft.client.gui.GuiButton;
import net.minecraft.client.renderer.RenderHelper;
import net.minecraft.client.renderer.entity.RenderItem;
import net.minecraft.item.ItemStack;
import org.lwjgl.opengl.GL11;
import org.lwjgl.opengl.GL12;

public class GuiTabButton extends GuiButton implements ITooltip {
    private final RenderItem itemRenderer;
    private final String message;
    private int hideEdge = 0;
    private int myIcon = -1;
    private ItemStack myItem;

    public GuiTabButton(
        final int x, final int y, final int ico, final String message, final RenderItem ir
    ) {
        super(0, 0, 16, "");

        this.xPosition = x;
        this.yPosition = y;
        this.width = 22;
        this.height = 22;
        this.myIcon = ico;
        this.message = message;
        this.itemRenderer = ir;
    }

    /**
     * Using itemstack as an icon
     *
     * @param x       x pos of button
     * @param y       y pos of button
     * @param ico     used icon
     * @param message mouse over message
     * @param ir      renderer
     */
    public GuiTabButton(
        final int x,
        final int y,
        final ItemStack ico,
        final String message,
        final RenderItem ir
    ) {
        super(0, 0, 16, "");
        this.xPosition = x;
        this.yPosition = y;
        this.width = 22;
        this.height = 22;
        this.myItem = ico;
        this.message = message;
        this.itemRenderer = ir;
    }

    @Override
    public void drawButton(final Minecraft minecraft, final int x, final int y) {
        if (this.visible) {
            GL11.glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
            minecraft.renderEngine.bindTexture(
                ExtraBlockTextures.guiTexture("guis/states.png")
            );
            this.field_146123_n = x >= this.xPosition && y >= this.yPosition
                && x < this.xPosition + this.width && y < this.yPosition + this.height;

            int uv_x = (this.hideEdge > 0 ? 11 : 13);

            final int offsetX = this.hideEdge > 0 ? 1 : 0;

            this.drawTexturedModalRect(
                this.xPosition, this.yPosition, uv_x * 16, 0, 25, 22
            );

            if (this.myIcon >= 0) {
                final int uv_y = (int) Math.floor(this.myIcon / 16);
                uv_x = this.myIcon - uv_y * 16;

                this.drawTexturedModalRect(
                    offsetX + this.xPosition + 3,
                    this.yPosition + 3,
                    uv_x * 16,
                    uv_y * 16,
                    16,
                    16
                );
            }

            this.mouseDragged(minecraft, x, y);

            if (this.myItem != null) {
                this.zLevel = 100.0F;
                this.itemRenderer.zLevel = 100.0F;

                GL11.glEnable(GL11.GL_LIGHTING);
                GL11.glEnable(GL12.GL_RESCALE_NORMAL);
                RenderHelper.enableGUIStandardItemLighting();
                final FontRenderer fontrenderer = minecraft.fontRenderer;
                this.itemRenderer.renderItemAndEffectIntoGUI(
                    fontrenderer,
                    minecraft.renderEngine,
                    this.myItem,
                    offsetX + this.xPosition + 3,
                    this.yPosition + 3
                );
                GL11.glDisable(GL11.GL_LIGHTING);

                this.itemRenderer.zLevel = 0.0F;
                this.zLevel = 0.0F;
            }
        }
    }

    @Override
    public String getMessage() {
        return this.message;
    }

    @Override
    public int xPos() {
        return this.xPosition;
    }

    @Override
    public int yPos() {
        return this.yPosition;
    }

    @Override
    public int getWidth() {
        return 22;
    }

    @Override
    public int getHeight() {
        return 22;
    }

    @Override
    public boolean isVisible() {
        return this.visible;
    }

    public int getHideEdge() {
        return this.hideEdge;
    }

    public void setHideEdge(final int hideEdge) {
        this.hideEdge = hideEdge;
    }
}