1 /*
2 * Copyright 2006 Robert Hanson <iamroberthanson AT gmail.com>
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 package org.gwtwidgets.client.ui;
18
19 import com.google.gwt.user.client.ui.MouseListenerAdapter;
20 import com.google.gwt.user.client.ui.Widget;
21
22 public class ToggleButton extends ImageButton
23 {
24 private int trueState;
25
26
27 public ToggleButton (String url, int width, int height)
28 {
29 super(url, width, height);
30 }
31
32 protected void init ()
33 {
34 addMouseListener(new MouseListenerAdapter(){
35
36 public void onMouseEnter (Widget sender)
37 {
38 trueState = getState();
39 setState(ON_STATE);
40 setColors();
41 }
42
43 public void onMouseLeave (Widget sender)
44 {
45 setState(trueState);
46 setColors();
47 }
48 });
49 }
50
51 public void setOn (boolean on)
52 {
53 if (on) {
54 setState(ON_STATE);
55 trueState = ON_STATE;
56 }
57 else {
58 setState(OFF_STATE);
59 trueState = OFF_STATE;
60 }
61 setColors();
62 }
63
64
65 /***
66 * Toggle button state
67 * @param on
68 */
69 public void toggle ()
70 {
71 if (trueState == ON_STATE) {
72 trueState = OFF_STATE;
73 }
74 else {
75 trueState = ON_STATE;
76 }
77 setColors();
78 }
79 }