mouselistener.java

JAVA基本类源代码,大家可以学习学习!

/*
 * @(#)MouseListener.java	1.16 03/01/23
 *
 * Copyright 2003 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package java.awt.event;

import java.util.EventListener;

/**
 * The listener interface for receiving "interesting" mouse events 
 * (press, release, click, enter, and exit) on a component.
 * (To track mouse moves and mouse drags, use the
 * <code>MouseMotionListener</code>.)
 * <P>
 * The class that is interested in processing a mouse event
 * either implements this interface (and all the methods it
 * contains) or extends the abstract <code>MouseAdapter</code> class
 * (overriding only the methods of interest).
 * <P>
 * The listener object created from that class is then registered with a
 * component using the component's <code>addMouseListener</code> 
 * method. A mouse event is generated when the mouse is pressed, released
 * clicked (pressed and released). A mouse event is also generated when
 * the mouse cursor enters or leaves a component. When a mouse event
 * occurs, the relevant method in the listener object is invoked, and 
 * the <code>MouseEvent</code> is passed to it.
 *
 * @author Carl Quinn
 * @version 1.16, 01/23/03
 *
 * @see MouseAdapter
 * @see MouseEvent
 * @see <a href="http://java.sun.com/docs/books/tutorial/post1.0/ui/mouselistener.html">Tutorial: Writing a Mouse Listener</a>
 * @see <a href="http://www.awl.com/cp/javaseries/jcl1_2.html">Reference: The Java Class Libraries (update file)</a>
 *
 * @since 1.1
 */
public interface MouseListener extends EventListener {

    /**
     * Invoked when the mouse button has been clicked (pressed
     * and released) on a component.
     */
    public void mouseClicked(MouseEvent e);

    /**
     * Invoked when a mouse button has been pressed on a component.
     */
    public void mousePressed(MouseEvent e);

    /**
     * Invoked when a mouse button has been released on a component.
     */
    public void mouseReleased(MouseEvent e);

    /**
     * Invoked when the mouse enters a component.
     */
    public void mouseEntered(MouseEvent e);

    /**
     * Invoked when the mouse exits a component.
     */
    public void mouseExited(MouseEvent e);
}