1. /*

  2.  * @(#)MouseWheelListener.java	1.5 03/12/19

  3.  *

  4.  * Copyright 2004 Sun Microsystems, Inc. All rights reserved.

  5.  * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.

  6.  */

  7. 

  8. package java.awt.event;

  9. 

  10. import java.util.EventListener;

  11. 

  12. /**

  13.  * The listener interface for receiving mouse wheel events on a component.

  14.  * (For clicks and other mouse events, use the <code>MouseListener</code>. 

  15.  * For mouse movement and drags, use the <code>MouseMotionListener</code>.)

  16.  * <P>

  17.  * The class that is interested in processing a mouse wheel event

  18.  * implements this interface (and all the methods it contains).

  19.  * <P>

  20.  * The listener object created from that class is then registered with a

  21.  * component using the component's <code>addMouseWheelListener</code> 

  22.  * method. A mouse wheel event is generated when the mouse wheel is rotated.

  23.  * When a mouse wheel event occurs, that object's <code>mouseWheelMoved</code>

  24.  * method is invoked.

  25.  * <p>

  26.  * For information on how mouse wheel events are dispatched, see

  27.  * the class description for {@link MouseWheelEvent}.

  28.  *

  29.  * @author Brent Christian

  30.  * @version 1.5 12/19/03

  31.  * @see MouseWheelEvent

  32.  * @since 1.4

  33.  */

  34. public interface MouseWheelListener extends EventListener {

  35. 

  36.     /**

  37.      * Invoked when the mouse wheel is rotated.

  38.      * @see MouseWheelEvent

  39.      */

  40.     public void mouseWheelMoved(MouseWheelEvent e);

  41. }