com.savoycraft.gui.GuiSlider.java Source code

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

Source

/**
 * 
 * Changes from Mojang AB Code:
 * 
 * Copyright (c) 2012 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 net.minecraft.client.Minecraft;
import net.minecraft.src.GuiButton;

import org.lwjgl.opengl.GL11;

/**
 * Version of GuiSlider that does away with the unbreakable link with Minecraft
 * settings. Obviously this mod's guis don't alter Minecraft settings, so this
 * link was removed here.
 */
public class GuiSlider extends GuiButton {

    // Slider value
    public float sliderValue;

    public boolean dragging = false;

    /**
    * Sets up a slider.
    */
    public GuiSlider(int buttonID, int x, int y, String label, float initialValue) {
        super(buttonID, x, y, 120, 20, label);
        sliderValue = initialValue;
    }

    /**
     * Fired when the mouse button is dragged. Equivalent of
     * MouseListener.mouseDragged(MouseEvent e).
     */
    protected void mouseDragged(Minecraft par1Minecraft, int x, int y) {
        if (!drawButton) {
            return;
        }

        if (dragging) {
            sliderValue = limitToRange((float) (x - (xPosition + 4)) / (float) (width - 8));
        }

        GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
        drawTexturedModalRect(xPosition + (int) (sliderValue * (float) (width - 8)), yPosition, 0, 66, 4, 20);
        drawTexturedModalRect(xPosition + (int) (sliderValue * (float) (width - 8)) + 4, yPosition, 196, 66, 4, 20);
    }

    /**
     * Returns true if the mouse has been pressed on this control. Equivalent of
     * MouseListener.mousePressed(MouseEvent e).
     */
    public boolean mousePressed(Minecraft mc, int x, int y) {
        if (super.mousePressed(mc, x, y)) {
            sliderValue = limitToRange((float) (x - (xPosition + 4)) / (float) (width - 8));

            dragging = true;
            return true;
        } else {
            return false;
        }
    }

    /**
     * Fired when the mouse button is released. Equivalent of
     * MouseListener.mouseReleased(MouseEvent e).
     */
    public void mouseReleased(int par1, int par2) {
        dragging = false;
    }

    /**
     * Returns 0 if the button is disabled, 1 if the mouse is NOT hovering over
     * this button and 2 if it IS hovering over this button.
     */
    protected int getHoverState(boolean par1) {
        return 0;
    }

    private float limitToRange(float value) {
        if (value < 0) {
            return 0;
        } else if (value > 1) {
            return 1;
        } else {
            return value;
        }
    }
}