01: /*
02: * This file is part of the Echo Web Application Framework (hereinafter "Echo").
03: * Copyright (C) 2002-2005 NextApp, Inc.
04: *
05: * Version: MPL 1.1/GPL 2.0/LGPL 2.1
06: *
07: * The contents of this file are subject to the Mozilla Public License Version
08: * 1.1 (the "License"); you may not use this file except in compliance with
09: * the License. You may obtain a copy of the License at
10: * http://www.mozilla.org/MPL/
11: *
12: * Software distributed under the License is distributed on an "AS IS" basis,
13: * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
14: * for the specific language governing rights and limitations under the
15: * License.
16: *
17: * Alternatively, the contents of this file may be used under the terms of
18: * either the GNU General Public License Version 2 or later (the "GPL"), or
19: * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
20: * in which case the provisions of the GPL or the LGPL are applicable instead
21: * of those above. If you wish to allow use of your version of this file only
22: * under the terms of either the GPL or the LGPL, and not to allow others to
23: * use your version of this file under the terms of the MPL, indicate your
24: * decision by deleting the provisions above and replace them with the notice
25: * and other provisions required by the GPL or the LGPL. If you do not delete
26: * the provisions above, a recipient may use your version of this file under
27: * the terms of any one of the MPL, the GPL or the LGPL.
28: */
29:
30: package nextapp.echo2.app.button;
31:
32: import java.util.EventListener;
33:
34: import nextapp.echo2.app.event.ChangeEvent;
35: import nextapp.echo2.app.event.ChangeListener;
36:
37: /**
38: * Default <code>ToggleButtonModel</code> implementation.
39: */
40: public class DefaultToggleButtonModel extends DefaultButtonModel
41: implements ToggleButtonModel {
42:
43: private boolean selected;
44:
45: /**
46: * @see nextapp.echo2.app.button.ToggleButtonModel#addChangeListener(nextapp.echo2.app.event.ChangeListener)
47: */
48: public void addChangeListener(ChangeListener l) {
49: getEventListenerList().addListener(ChangeListener.class, l);
50: }
51:
52: /**
53: * Notifies all listeners that have registered for this event type.
54: */
55: public void fireStateChanged() {
56: EventListener[] listeners = getEventListenerList()
57: .getListeners(ChangeListener.class);
58: ChangeEvent e = new ChangeEvent(this );
59: for (int index = 0; index < listeners.length; ++index) {
60: ((ChangeListener) listeners[index]).stateChanged(e);
61: }
62: }
63:
64: /**
65: * @see nextapp.echo2.app.button.ToggleButtonModel#isSelected()
66: */
67: public boolean isSelected() {
68: return selected;
69: }
70:
71: /**
72: * @see nextapp.echo2.app.button.ToggleButtonModel#removeChangeListener(nextapp.echo2.app.event.ChangeListener)
73: */
74: public void removeChangeListener(ChangeListener l) {
75: getEventListenerList().removeListener(ChangeListener.class, l);
76: }
77:
78: /**
79: * @see nextapp.echo2.app.button.ToggleButtonModel#setSelected(boolean)
80: */
81: public void setSelected(boolean selected) {
82: this.selected = selected;
83: fireStateChanged();
84: }
85: }
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