/*
 * aTunes
 * Copyright (C) Alex Aranda, Sylvain Gaudard and contributors
 *
 * See http://www.atunes.org/wiki/index.php?title=Contributing for information about contributors
 *
 * http://www.atunes.org
 * http://sourceforge.net/projects/atunes
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 */

package net.sourceforge.atunes.kernel.modules.player;

import java.awt.event.MouseWheelEvent;
import java.awt.event.MouseWheelListener;

import net.sourceforge.atunes.gui.views.controls.VolumeSlider;

/**
 * listener for volume changes from mouse wheel
 * 
 * @author alex
 * 
 */
public final class VolumeSliderMouseWheelListener implements MouseWheelListener {

    private VolumeSlider volumeSlider;

    private Volume volumeController;

    /**
     * @param volumeController
     */
    public void setVolumeController(final Volume volumeController) {
	this.volumeController = volumeController;
    }

    /**
     * @param volumeSlider
     */
    public void setVolumeSlider(final VolumeSlider volumeSlider) {
	this.volumeSlider = volumeSlider;
    }

    @Override
    public void mouseWheelMoved(final MouseWheelEvent e) {
	int notches = e.getWheelRotation();
	if (notches < 0) {
	    volumeSlider.setValue(volumeSlider.getValue() + 5);
	} else {
	    volumeSlider.setValue(volumeSlider.getValue() - 5);
	}

	volumeController.setVolume(volumeSlider.getValue());
    }
}