/*
 Copyright (c) 1998-2005 The Regents of the University of California
 All rights reserved.
 Permission is hereby granted, without written agreement and without
 license or royalty fees, to use, copy, modify, and distribute this
 software and its documentation for any purpose, provided that the above
 copyright notice and the following two paragraphs appear in all copies
 of this software.

 IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
 FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
 ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
 THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
 SUCH DAMAGE.

 THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
 PROVIDED HEREUNDER IS ON AN  BASIS, AND THE UNIVERSITY OF
 CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
 ENHANCEMENTS, OR MODIFICATIONS.

 PT_COPYRIGHT_VERSION_2
 COPYRIGHTENDKEY
 */
package diva.gui.toolbox;

import java.awt.Component;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;

/**
 * A mouse listener that requests focus for the source of any
 * mouse event it receives.  Yes, I Know this is simple, but I think it
 * is useful.  Attach it to a component and the component gets when pressed.
 *
 * @author Steve Neuendorffer
 * @version $Id$
 */
public class FocusMouseListener implements MouseListener {
    public void mouseReleased(MouseEvent event) {
    }

    public void mouseEntered(MouseEvent event) {
    }

    public void mouseExited(MouseEvent event) {
    }

    /**
     * Grab the keyboard focus when the component that this listener is
     * attached to is clicked on.
     */
    public void mousePressed(MouseEvent event) {
        Component component = event.getComponent();

        if (!component.hasFocus()) {
            component.requestFocus();
        }
    }

    public void mouseClicked(MouseEvent event) {
    }
}