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Java > Open Source Codes > com > genimen > djeneric > tools > specifier > components > DjCheckBox


1 /*
2  * Copyright (c) 2001-2005 by Genimen BV (www.genimen.com) All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without modification, is permitted
5  * provided that the following conditions are met:
6  * - Redistributions of source code must retain the above copyright notice, this list of conditions
7  * and the following disclaimer.
8  * - Redistributions in binary form must reproduce the above copyright notice, this list of
9  * conditions and the following disclaimer in the documentation and/or other materials
10  * provided with the distribution.
11  * - All advertising materials mentioning features or use of this software must display the
12  * following acknowledgment: "This product includes Djeneric."
13  * - Products derived from this software may not be called "Djeneric" nor may
14  * "Djeneric" appear in their names without prior written permission of Genimen BV.
15  * - Redistributions of any form whatsoever must retain the following acknowledgment: "This
16  * product includes Djeneric."
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS IS"
19  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED. IN NO EVENT SHALL GENIMEN BV, DJENERIC.ORG,
22  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
26  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 package com.genimen.djeneric.tools.specifier.components;
31
32 import java.awt.event.ActionEvent JavaDoc;
33 import java.awt.event.ActionListener JavaDoc;
34
35 import javax.swing.JCheckBox JavaDoc;
36 import javax.swing.JComponent JavaDoc;
37
38 import com.genimen.djeneric.language.Messages;
39 import com.genimen.djeneric.repository.DjDomainValue;
40 import com.genimen.djeneric.repository.exceptions.DjenericException;
41 import com.genimen.djeneric.tools.specifier.interfaces.ObjectViewer;
42 import com.genimen.djeneric.util.DjLogger;
43
44 public class DjCheckBox extends JCheckBox JavaDoc implements DjBindable, ActionListener JavaDoc
45 {
46   private static final long serialVersionUID = 1L;
47   private BindingMediator _mediator;
48   DjDomainValue[] _domainValues;
49
50   public DjCheckBox(ObjectViewer viewer, String JavaDoc propertyName, DjDomainValue[] domainValues) throws DjenericException
51   {
52     super();
53     _domainValues = domainValues;
54
55     if (domainValues.length != 2)
56     {
57       throw new DjenericException(Messages.getString("DjCheckBox.No2values", propertyName));
58     }
59     addActionListener(this);
60     _mediator = new BindingMediator(this, viewer, propertyName);
61   }
62
63   public void clear()
64   {
65     setText("");
66   }
67
68   public void apply() throws DjenericException
69   {
70     boolean wasChecked = _domainValues[0].getDescription().equals(_mediator.getPropertyValueString());
71     if (wasChecked != isSelected())
72     {
73       if (wasChecked)
74       {
75         _mediator.setPropertyValue(_domainValues[1].getDescription());
76       }
77       else
78       {
79         _mediator.setPropertyValue(_domainValues[0].getDescription());
80       }
81     }
82   }
83
84   public void actionPerformed(ActionEvent JavaDoc e)
85   {
86     try
87     {
88       apply();
89     }
90     catch (Exception JavaDoc x)
91     {
92       DjLogger.log(x);
93     }
94   }
95
96   public void setPropertyName(String JavaDoc propertyName) throws DjenericException
97   {
98     _mediator.setPropertyName(propertyName);
99   }
100
101   public void setViewer(ObjectViewer viewer)
102   {
103     _mediator.setViewer(viewer);
104   }
105
106   public void synchronize() throws DjenericException
107   {
108     if (_domainValues == null || _domainValues.length == 0)
109     {
110       System.err.println(Messages.getString("DjCheckBox.NoValidValues"));
111       return;
112     }
113     setEnabled(_mediator.isComponentWritable());
114
115     String JavaDoc curVal = _mediator.getPropertyValueString();
116     setSelected(_domainValues[0].getDescription().equals(curVal));
117   }
118
119   public Object JavaDoc getDisplayedValue()
120   {
121     if (isSelected()) return _domainValues[0].getValue();
122     return _domainValues[1].getValue();
123   }
124
125   public String JavaDoc getPropertyName()
126   {
127     return _mediator.getPropertyName();
128   }
129
130   public JComponent JavaDoc getFocussableComponent()
131   {
132     return this;
133   }
134
135   public boolean isComponentWritable()
136   {
137     return _mediator.isComponentWritable();
138   }
139 }
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