1 /******************************************************************************* 2 * Copyright (c) 2000, 2005 IBM Corporation and others. 3 * All rights reserved. This program and the accompanying materials 4 * are made available under the terms of the Eclipse Public License v1.0 5 * which accompanies this distribution, and is available at 6 * http://www.eclipse.org/legal/epl-v10.html 7 * 8 * Contributors: 9 * IBM Corporation - initial API and implementation 10 *******************************************************************************/ 11 package org.eclipse.swt.events; 12 13 14 import org.eclipse.swt.internal.SWTEventListener; 15 16 /** 17 * Classes which implement this interface provide methods 18 * that deal with the events that are generated when selection 19 * occurs in a control. 20 * <p> 21 * After creating an instance of a class that implements 22 * this interface it can be added to a control using the 23 * <code>addSelectionListener</code> method and removed using 24 * the <code>removeSelectionListener</code> method. When 25 * selection occurs in a control the appropriate method 26 * will be invoked. 27 * </p> 28 * 29 * @see SelectionAdapter 30 * @see SelectionEvent 31 */ 32 public interface SelectionListener extends SWTEventListener { 33 34 /** 35 * Sent when selection occurs in the control. 36 * <p> 37 * For example, selection occurs in a List when the user selects 38 * an item or items with the keyboard or mouse. On some platforms, 39 * the event occurs when a mouse button or key is pressed. On others, 40 * it happens when the mouse or key is released. The exact key or 41 * mouse gesture that causes this event is platform specific. 42 * </p> 43 * 44 * @param e an event containing information about the selection 45 */ 46 public void widgetSelected(SelectionEvent e); 47 48 /** 49 * Sent when default selection occurs in the control. 50 * <p> 51 * For example, on some platforms default selection occurs in a List 52 * when the user double-clicks an item or types return in a Text. 53 * On some platforms, the event occurs when a mouse button or key is 54 * pressed. On others, it happens when the mouse or key is released. 55 * The exact key or mouse gesture that causes this event is platform 56 * specific. 57 * </p> 58 * 59 * @param e an event containing information about the default selection 60 */ 61 public void widgetDefaultSelected(SelectionEvent e); 62 } 63