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Java > Open Source Codes > org > netbeans > modules > projectimport > j2seimport > ui > BasicVisualPanel


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.projectimport.j2seimport.ui;
21
22 import javax.swing.JPanel JavaDoc;
23 import org.openide.WizardDescriptor;
24 import org.openide.util.NbBundle;
25
26 /**
27  * @author Martin Krauskopf, Radek Matous
28  */
29 public abstract class BasicVisualPanel extends JPanel JavaDoc {
30     
31     private WizardDescriptor settings;
32     
33     protected BasicVisualPanel(final WizardDescriptor setting) {
34         this.settings = setting;
35     }
36     
37     public final WizardDescriptor getSettings() {
38         return settings;
39     }
40     
41     /**
42      * Set an error message and mark the panel as invalid.
43      */
44     protected final void setError(String JavaDoc message) {
45         if (message == null) {
46             throw new NullPointerException JavaDoc();
47         }
48         setMessage(message);
49         setValid(false);
50     }
51     
52     /**
53      * Set an warning message but mark the panel as valid.
54      */
55     protected final void setWarning(String JavaDoc message) {
56         if (message == null) {
57             throw new NullPointerException JavaDoc();
58         }
59         setMessage(message);
60         setValid(true);
61     }
62     
63     /**
64      * Mark the panel as invalid without any message.
65      * Use with restraint; generally {@link #setError} is better.
66      */
67     protected final void markInvalid() {
68         setMessage(null);
69         setValid(false);
70     }
71     
72     /**
73      * Mark the panel as valid and clear any error or warning message.
74      */
75     protected final void markValid() {
76         setMessage(null);
77         setValid(true);
78     }
79     
80     private final void setMessage(String JavaDoc message) {
81         settings.putProperty("WizardPanel_errorMessage", message); // NOI18N
82 }
83     
84     /**
85      * Sets this panel's validity and fires event to it's wrapper wizard panel.
86      * See {@link BasicWizardPanel#propertyChange} for what happens further.
87      */
88     private final void setValid(boolean valid) {
89         firePropertyChange("valid", null, Boolean.valueOf(valid)); // NOI18N
90 }
91 }
92
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