/* * Copyright (c) 2000, 2003, Oracle and/or its affiliates. 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. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.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); }