01 /*
02 * Copyright 2000-2003 Sun Microsystems, Inc. All Rights Reserved.
03 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04 *
05 * This code is free software; you can redistribute it and/or modify it
06 * under the terms of the GNU General Public License version 2 only, as
07 * published by the Free Software Foundation. Sun designates this
08 * particular file as subject to the "Classpath" exception as provided
09 * by Sun in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26 package java.awt.event;
27
28 import java.util.EventListener;
29
30 /**
31 * The listener interface for receiving mouse wheel events on a component.
32 * (For clicks and other mouse events, use the <code>MouseListener</code>.
33 * For mouse movement and drags, use the <code>MouseMotionListener</code>.)
34 * <P>
35 * The class that is interested in processing a mouse wheel event
36 * implements this interface (and all the methods it contains).
37 * <P>
38 * The listener object created from that class is then registered with a
39 * component using the component's <code>addMouseWheelListener</code>
40 * method. A mouse wheel event is generated when the mouse wheel is rotated.
41 * When a mouse wheel event occurs, that object's <code>mouseWheelMoved</code>
42 * method is invoked.
43 * <p>
44 * For information on how mouse wheel events are dispatched, see
45 * the class description for {@link MouseWheelEvent}.
46 *
47 * @author Brent Christian
48 * @version 1.12 05/05/07
49 * @see MouseWheelEvent
50 * @since 1.4
51 */
52 public interface MouseWheelListener extends EventListener {
53
54 /**
55 * Invoked when the mouse wheel is rotated.
56 * @see MouseWheelEvent
57 */
58 public void mouseWheelMoved(MouseWheelEvent e);
59 }
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