/* * Copyright (c) 1996, 2006, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package java.awt.event; /** * An abstract adapter class for receiving mouse motion events. * The methods in this class are empty. This class exists as * convenience for creating listener objects. * <P> * Mouse motion events occur when a mouse is moved or dragged. * (Many such events will be generated in a normal program. * To track clicks and other mouse events, use the MouseAdapter.) * <P> * Extend this class to create a <code>MouseEvent</code> listener * and override the methods for the events of interest. (If you implement the * <code>MouseMotionListener</code> interface, you have to define all of * the methods in it. This abstract class defines null methods for them * all, so you can only have to define methods for events you care about.) * <P> * Create a listener object using the extended class and then register it with * a component using the component's <code>addMouseMotionListener</code> * method. When the mouse is moved or dragged, the relevant method in the * listener object is invoked and the <code>MouseEvent</code> is passed to it. * * @author Amy Fowler * * @see MouseEvent * @see MouseMotionListener * @see <a href="http://java.sun.com/docs/books/tutorial/post1.0/ui/mousemotionlistener.html">Tutorial: Writing a Mouse Motion Listener</a> * * @since 1.1 */ public abstract class MouseMotionAdapter implements MouseMotionListener { /** * Invoked when a mouse button is pressed on a component and then * dragged. Mouse drag events will continue to be delivered to * the component where the first originated until the mouse button is * released (regardless of whether the mouse position is within the * bounds of the component). */ public void mouseDragged(MouseEvent e) {} /** * Invoked when the mouse button has been moved on a component * (with no buttons no down). */ public void mouseMoved(MouseEvent e) {} }