1 /* 2 * Copyright (c) 2011, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.apple.eawt.event; 27 28 import java.awt.*; 29 import java.awt.event.InputEvent; 30 31 /** 32 * Abstract event all gestures inherit from. 33 * 34 * Note: GestureEvent is not subclass of {@link AWTEvent} and is not dispatched 35 * directly from the {@link EventQueue}. This is an intentional design decision 36 * to prevent collision with an official java.awt.* gesture event types subclassing 37 * {@link InputEvent}. 38 * 39 * {@link GestureListener}s are only notified from the AWT Event Dispatch thread. 40 * 41 * @see GestureUtilities 42 * 43 * @since Java for Mac OS X 10.5 Update 7, Java for Mac OS X 10.6 Update 2 44 */ 45 public abstract class GestureEvent { 46 boolean consumed; 47 48 GestureEvent() { 49 // package private 50 } 51 52 /** 53 * Consuming an event prevents listeners later in the chain or higher in the 54 * component hierarchy from receiving the event. 55 */ 56 public void consume() { 57 consumed = true; 58 } 59 60 /** 61 * @return if the event has been consumed 62 */ 63 protected boolean isConsumed() { 64 return consumed; 65 } 66 }