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Java > Open Source Codes > org > netbeans > modules > tasklist > usertasks > actions > PauseAction


1 /*
2  * The contents of this file are subject to the terms of the Common Development
3  * and Distribution License (the License). You may not use this file except in
4  * compliance with the License.
5  *
6  * You can obtain a copy of the License at http://www.netbeans.org/cddl.html
7  * or http://www.netbeans.org/cddl.txt.
8  *
9  * When distributing Covered Code, include this CDDL Header Notice in each file
10  * and include the License file at http://www.netbeans.org/cddl.txt.
11  * If applicable, add the following below the CDDL Header, with the fields
12  * enclosed by brackets [] replaced by your own identifying information:
13  * "Portions Copyrighted [year] [name of copyright owner]"
14  *
15  * The Original Software is NetBeans. The Initial Developer of the Original
16  * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
17  * Microsystems, Inc. All Rights Reserved.
18  */
19
20 package org.netbeans.modules.tasklist.usertasks.actions;
21
22 import java.awt.event.ActionEvent JavaDoc;
23 import javax.swing.AbstractAction JavaDoc;
24 import javax.swing.Action JavaDoc;
25 import javax.swing.ImageIcon JavaDoc;
26 import javax.swing.event.ChangeEvent JavaDoc;
27 import javax.swing.event.ChangeListener JavaDoc;
28 import org.netbeans.modules.tasklist.usertasks.model.StartedUserTask;
29 import org.netbeans.modules.tasklist.usertasks.model.UserTask;
30 import org.openide.util.NbBundle;
31 import org.openide.util.Utilities;
32
33 /**
34  * Stops a task.
35  *
36  * @author tl
37  */
38 public class PauseAction extends AbstractAction JavaDoc implements ChangeListener JavaDoc {
39     private static PauseAction INSTANCE = new PauseAction();
40     
41     /**
42      * Returns the only instance of this class.
43      *
44      * @return the instance.
45      */
46     public static PauseAction getInstance() {
47         return INSTANCE;
48     }
49
50     /**
51      * Constructor.
52      */
53     private PauseAction() {
54         putValue(Action.NAME,
55                 NbBundle.getMessage(PauseAction.class, "Pause")); // NOI18N
56 putValue(SMALL_ICON, new ImageIcon JavaDoc(Utilities.loadImage(
57                 "org/netbeans/modules/tasklist/usertasks/" + // NOI18N
58 "actions/pause.gif"))); // NOI18N
59 StartedUserTask.getInstance().addChangeListener(this);
60         stateChanged(null);
61     }
62     
63     public void stateChanged(ChangeEvent JavaDoc e) {
64         setEnabled(StartedUserTask.getInstance().getStarted() != null);
65     }
66
67     public void actionPerformed(ActionEvent JavaDoc e) {
68         StartedUserTask.getInstance().start(null);
69     }
70 }
71
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