ActionEvent.java
上传用户:haobig99
上传日期:2022-06-15
资源大小:369k
文件大小:4k
- /*
- * Copyright 2008 Sun Microsystems, Inc. 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. Sun designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- */
- package com.sun.lwuit.events;
- import com.sun.lwuit.Command;
- /**
- * Event object delivered when an {@link ActionListener} callback is invoked
- *
- * @author Chen Fishbein
- */
- public class ActionEvent {
- private boolean consumed;
-
- private Object source;
-
- private int keyEvent = -1;
- private int y = -1;
-
- /**
- * Creates a new instance of ActionEvent
- * @param source element for the action event
- */
- public ActionEvent(Object source) {
- this.source = source;
- }
- /**
- * Creates a new instance of ActionEvent
- * @param source element for the action event
- * @param keyEvent the key that triggered the event
- */
- public ActionEvent(Object source, int keyEvent) {
- this.source = source;
- this.keyEvent = keyEvent;
- }
- /**
- * Creates a new instance of ActionEvent as a pointer event
- *
- * @param source element for the pointer event
- * @param x the x position of the pointer event
- * @param y the y position of the pointer event
- */
- public ActionEvent(Object source, int x, int y) {
- this.source = source;
- this.keyEvent = x;
- this.y = y;
- }
- /**
- * The element that triggered the action event, useful for decoupling event
- * handling code
- * @return the element that triggered the action event
- */
- public Object getSource(){
- return source;
- }
- /**
- * If this event was triggered by a key press this method will return the
- * appropriate keycode
- * @return the key that triggered the event
- */
- public int getKeyEvent() {
- return keyEvent;
- }
- /**
- * If this event was sent as a result of a command action this method returns
- * that command
- * @return the command action that triggered the action event
- */
- public Command getCommand() {
- if(source instanceof Command) {
- return (Command)source;
- }
- return null;
- }
-
- /**
- * Consume the event indicating that it was handled thus preventing other action
- * listeners from handling/receiving the event
- */
- public void consume() {
- consumed = true;
- }
-
- /**
- * Returns true if the event was consumed thus indicating that it was handled.
- * This prevents other action listeners from handling/receiving the event
- *
- * @return true if the event was consumed
- */
- public boolean isConsumed() {
- return consumed;
- }
- /**
- * The X position if this is a pointer event otherwise undefined
- *
- * @return x position
- */
- public int getX() {
- return keyEvent;
- }
- /**
- * The Y position if this is a pointer event otherwise undefined
- *
- * @return y position
- */
- public int getY() {
- return y;
- }
- }