/*
 * Copyright 2000-2003 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

package java.awt.event;

import java.util.EventListener;

/**
 * The listener interface for receiving mouse wheel events on a component.
 * (For clicks and other mouse events, use the <code>MouseListener</code>.
 * For mouse movement and drags, use the <code>MouseMotionListener</code>.)
 * <P>
 * The class that is interested in processing a mouse wheel event
 * implements this interface (and all the methods it contains).
 * <P>
 * The listener object created from that class is then registered with a
 * component using the component's <code>addMouseWheelListener</code>
 * method. A mouse wheel event is generated when the mouse wheel is rotated.
 * When a mouse wheel event occurs, that object's <code>mouseWheelMoved</code>
 * method is invoked.
 * <p>
 * For information on how mouse wheel events are dispatched, see
 * the class description for {@link MouseWheelEvent}.
 *
 * @author Brent Christian
 * @see MouseWheelEvent
 * @since 1.4
 */
public interface MouseWheelListener extends EventListener {

    /**
     * Invoked when the mouse wheel is rotated.
     * @see MouseWheelEvent
     */
    public void mouseWheelMoved(MouseWheelEvent e);
}