DefaultMouseWheelListener.java

/*
 *  Jajuk
 *  Copyright (C) The Jajuk Team
 *  http://jajuk.info
 *
 *  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 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.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *  
 */
package org.jajuk.ui.helpers;

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

import javax.swing.JSlider;

/**
 * A basic Mouse wheel listener for jsliders.
 */
public class DefaultMouseWheelListener implements MouseWheelListener {
  private JSlider js;

  /**
   * The Constructor.
   * 
   * @param js associated jslider
   */
  public DefaultMouseWheelListener(JSlider js) {
    super();
    this.js = js;
  }

  /*
   * (non-Javadoc)
   * 
   * @see java.awt.event.MouseWheelListener#mouseWheelMoved(java.awt.event.MouseWheelEvent)
   */
  @Override
  public void mouseWheelMoved(MouseWheelEvent mwe) {
    int iOld = js.getValue();
    int iNew = iOld - mwe.getWheelRotation();
    if (js.isEnabled()) {
      js.setValue(iNew);
    }
  }
}