GuiButtonManualNavigation.java

package pixlepix.auracascade.lexicon;

import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.GuiButton;
import net.minecraft.client.renderer.GlStateManager;
import net.minecraft.client.renderer.OpenGlHelper;
import org.lwjgl.opengl.GL11;
import pixlepix.auracascade.lexicon.page.MultiblockPage;

/**
 * Created by BluSunrize
 * package pixlepix.auracascade.lexicon.page;
 * <p/>
 * import net.minecraft.client.Minecraft;
 * import net.minecraft.client.gui.GuiButton;
 * import net.minecraft.client.renderer.OpenGlHelper;
 * import org.lwjgl.opengl.GL11;
 * import pixlepix.auracascade.lexicon.GuiLexicon;
 * import pixlepix.auracascade.lexicon.IGuiLexiconEntry;
 * <p/>
 * /**
 * Created by BluSunrize, used with permission
 */
public class GuiButtonManualNavigation extends GuiButton {
    int type;
    IGuiLexiconEntry gui;
    private MultiblockPage page;

    public GuiButtonManualNavigation(IGuiLexiconEntry gui, MultiblockPage page, int id, int x, int y, int w, int h, int type) {
        super(id, x, y, type == 4 ? 10 : Math.min(type < 2 ? 16 : 10, w), type == 4 ? 10 : Math.min(type < 2 ? 10 : 16, h), "");
        this.gui = gui;
        this.page = page;
        this.type = type;
    }

    private boolean isVisible() {
        return gui.getEntry().pages.get(gui.getPageOn()) == page;
    }

    @Override
    public void drawButton(Minecraft mc, int mx, int my) {
        if (isVisible()) {
            Minecraft.getMinecraft().renderEngine.bindTexture(GuiLexicon.texture);
            GlStateManager.color(1.0F, 1.0F, 1.0F, 1.0F);
            this.hovered = mx >= this.xPosition && mx < (this.xPosition + this.width) && my >= this.yPosition && my < (this.yPosition + this.height);
            GlStateManager.enableBlend();
            OpenGlHelper.glBlendFunc(770, 771, 1, 0);
            GlStateManager.blendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
            int u = type == 4 ? 36 : (type < 2 ? 0 : type < 3 ? 16 : 26) + (type > 1 ? (10 - width) : type == 1 ? (16 - width) : 0);
            int v = 218 + (type == 0 ? 0 : type == 1 ? 10 : type == 2 ? (16 - height) : type == 3 ? 0 : 0);
            if (hovered)
                v += 20;
            this.drawTexturedModalRect(this.xPosition, this.yPosition, u, v, width, height);
            this.mouseDragged(mc, mx, my);
        }

    }
}