Java tutorial
/******************************************************************************* * Copyright (c) 2000, 2008 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation *******************************************************************************/ package org.eclipse.swt.events; /** * This adapter class provides default implementations for the methods described * by the <code>MouseTrackListener</code> interface. * <p> * Classes that wish to deal with <code>MouseEvent</code>s which occur as the * mouse pointer passes (or hovers) over controls can extend this class and * override only the methods which they are interested in. * </p> * * @see MouseTrackListener * @see MouseEvent * @since 1.3 */ public abstract class MouseTrackAdapter implements MouseTrackListener { /** * Sent when the mouse pointer passes into the area of the screen covered by a * control. The default behavior is to do nothing. * * @param e an event containing information about the mouse enter */ public void mouseEnter(MouseEvent e) { } /** * Sent when the mouse pointer passes out of the area of the screen covered by * a control. The default behavior is to do nothing. * * @param e an event containing information about the mouse exit */ public void mouseExit(MouseEvent e) { } /** * Sent when the mouse pointer hovers (that is, stops moving for an (operating * system specified) period of time) over a control. The default behavior is * to do nothing. * * @param e an event containing information about the hover */ public void mouseHover(MouseEvent e) { } }