com.savoycraft.gui.GuiButtonL.java Source code

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Here is the source code for com.savoycraft.gui.GuiButtonL.java

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/**
 * Copyright (c) 2012-2013 William Karnavas 
 * All Rights Reserved
 */

/**
 * 
 * This file is part of MineTunes.
 * 
 * MineTunes 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.
 * 
 * MineTunes 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 MineTunes. If not, see <http://www.gnu.org/licenses/>.
 * 
 */
package com.savoycraft.gui;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.HashSet;
import java.util.Random;

import net.minecraft.client.Minecraft;
import net.minecraft.src.GuiButton;

import org.lwjgl.opengl.GL11;

import com.minetunes.Minetunes;

/**
 * An extended version of Minecraft's GuiButton, with icon (alone, or with text)
 * labels and an ActionListener for pressed events.
 * 
 */
public class GuiButtonL extends GuiButton {

    private boolean iconShown = false;
    private String iconTex = "";
    private int iconIndex = 0;
    private String action = null;

    private static final Random rand = new Random();

    private HashSet<ActionListener> listeners = new HashSet<ActionListener>();

    public GuiButtonL(String action, int x, int y, int width, int height, String label) {
        super(99999 + Minetunes.rand.nextInt(10000000), x, y, width, height, label);
        setAction(action);
    }

    public GuiButtonL(String action, int x, int y, int width, int height, String iconTex, int iconIndex) {
        super(99999 + Minetunes.rand.nextInt(10000000), x, y, width, height, "");
        setAction(action);
        setIconTex(iconTex);
        setIconIndex(iconIndex);
        setIconShown(true);
    }

    public GuiButtonL(String action, int x, int y, int width, int height, String iconTex, int iconIndex,
            String label) {
        this(action, x, y, width, height, iconTex, iconIndex);
        displayString = label;
    }

    public String getIconTex() {
        return iconTex;
    }

    public void setIconTex(String iconTex) {
        this.iconTex = iconTex;
    }

    public int getIconIndex() {
        return iconIndex;
    }

    public void setIconIndex(int iconIndex) {
        this.iconIndex = iconIndex;
    }

    public boolean isIconShown() {
        return iconShown;
    }

    public void setIconShown(boolean iconShown) {
        this.iconShown = iconShown;
    }

    @Override
    public boolean mousePressed(Minecraft par1Minecraft, int par2, int par3) {
        boolean mouseOver = super.mousePressed(par1Minecraft, par2, par3);
        if (mouseOver) {
            fireActionEvent();
        }
        return mouseOver;
    }

    public void addListener(ActionListener a) {
        listeners.add(a);
    }

    public void removeListener(ActionListener a) {
        listeners.remove(a);
    }

    public void clearListeners() {
        listeners.clear();
    }

    /**
     * 
     */
    protected void fireActionEvent() {
        ActionEvent e = new ActionEvent(this, (int) (System.currentTimeMillis() * 100 + rand.nextInt(100)), action);
        for (ActionListener a : listeners) {
            a.actionPerformed(e);
        }
    }

    public String getAction() {
        return action;
    }

    public void setAction(String action) {
        this.action = action;
    }

    @Override
    public void drawButton(Minecraft mc, int mx, int my) {
        if (drawButton) {
            // Check for hover
            field_82253_i = isMouseOver(mx, my);

            // Set up texture
            // GL11.glBindTexture(GL11.GL_TEXTURE_2D,
            // mc.renderEngine.getTexture("/gui/gui.png"));
            mc.renderEngine.bindTexture("/gui/gui.png");
            GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);

            // Draw texture, grabbing a half from each end of the button texture
            // and moving them closer or farther to match the button's width
            int hoverState = getHoverState(isMouseOver(mx, my));
            drawTexturedModalRect(xPosition, yPosition, 0, 46 + hoverState * 20, width / 2, height);
            drawTexturedModalRect(xPosition + width / 2, yPosition, 200 - width / 2, 46 + hoverState * 20,
                    width / 2, height);

            // Fire a mouse dragged event
            mouseDragged(mc, mx, my);

            // Decide the label's color
            int labelColor = 0xE0E0E0;
            if (!enabled) {
                labelColor = 0xFFA0A0A0;
            } else if (field_82253_i) {
                labelColor = 0xFFFFA0;
            }

            // Draw label
            int labelOffset = 0;
            int textWidth = mc.fontRenderer.getStringWidth(displayString);
            if (isIconShown() && width < textWidth + 40) {
                labelOffset += 9;
            }
            drawCenteredString(mc.fontRenderer, displayString, xPosition + width / 2 + labelOffset,
                    yPosition + (height - 8) / 2, labelColor);

            // Draw icon
            if (isIconShown()) {
                //GL11.glBindTexture(GL11.GL_TEXTURE_2D, iconTex);
                mc.renderEngine.bindTexture(iconTex);
                drawTexturedModalRect(xPosition + 2, yPosition + 2, (iconIndex % 16) * 16, (iconIndex / 16) * 16,
                        16, 16);
            }
        }
    }

    protected boolean isMouseOver(int mx, int my) {
        return mx >= this.xPosition && my >= this.yPosition && mx < this.xPosition + this.width
                && my < this.yPosition + this.height;
    }

}