001 /* 002 * Created on Nov 11, 2007 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except 005 * in compliance with the License. You may obtain a copy of the License at 006 * 007 * http://www.apache.org/licenses/LICENSE-2.0 008 * 009 * Unless required by applicable law or agreed to in writing, software distributed under the License 010 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express 011 * or implied. See the License for the specific language governing permissions and limitations under 012 * the License. 013 * 014 * Copyright @2007-2010 the original author or authors. 015 */ 016 package org.fest.swing.util; 017 018 import static java.awt.event.ComponentEvent.COMPONENT_SHOWN; 019 import static java.awt.event.WindowEvent.WINDOW_CLOSED; 020 import static java.awt.event.WindowEvent.WINDOW_OPENED; 021 022 import java.awt.AWTEvent; 023 import java.awt.Window; 024 025 /** 026 * Understands utility methods related to AWT events. 027 * 028 * @author Alex Ruiz 029 */ 030 public final class AWTEvents { 031 032 /** 033 * Returns <code>true</code> if the id of the given event is equal to 034 * <code>{@link java.awt.event.WindowEvent#WINDOW_OPENED WINDOW_OPENED}</code> 035 * @param e the given event. 036 * @return <code>true</code> if the id of the given event is equal to <code>WINDOW_OPENED</code>; <code>false</code> 037 * otherwise. 038 */ 039 public static boolean windowOpened(AWTEvent e) { 040 return idEquals(e, WINDOW_OPENED); 041 } 042 043 /** 044 * Returns <code>true</code> if the id of the given event is equal to 045 * <code>{@link java.awt.event.WindowEvent#COMPONENT_SHOWN COMPONENT_SHOWN}</code> and the source of the event is a 046 * <code>{@link Window}</code>. 047 * @param e the given event. 048 * @return <code>true</code> if the id of the given event is equal to <code>COMPONENT_SHOWN</code> and the source of 049 * the event is a window; <code>false</code> otherwise. 050 */ 051 public static boolean windowShown(AWTEvent e) { 052 return idEquals(e, COMPONENT_SHOWN) && e.getSource() instanceof Window; 053 } 054 055 /** 056 * Returns <code>true</code> if the id of the given event is equal to 057 * <code>{@link java.awt.event.WindowEvent#WINDOW_CLOSED WINDOW_CLOSED}</code> 058 * @param e the given event. 059 * @return <code>true</code> if the id of the given event is equal to <code>WINDOW_CLOSED</code>; <code>false</code> 060 * otherwise. 061 */ 062 public static boolean windowClosed(AWTEvent e) { 063 return idEquals(e, WINDOW_CLOSED); 064 } 065 066 private static boolean idEquals(AWTEvent e, int expectedId) { 067 return e.getID() == expectedId; 068 } 069 070 private AWTEvents() {} 071 }