AttachmentEditor


1   /*
2     Copyright (C) 2002 Laurent Martelli <laurent@aopsys.com>
3     
4     This program is free software; you can redistribute it and/or modify
5     it under the terms of the GNU Lesser General Public License as
6     published by the Free Software Foundation; either version 2 of the
7     License, or (at your option) any later version.
8   
9     This program is distributed in the hope that it will be useful,
10    but WITHOUT ANY WARRANTY; without even the implied warranty of
11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12    GNU Lesser General Public License for more details.
13  
14    You should have received a copy of the GNU Lesser General Public License
15    along with this program; if not, write to the Free Software
16    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
17  
18  package org.objectweb.jac.aspects.gui.swing;
19  
20  
21  
22  import org.objectweb.jac.core.rtti.FieldItem;
23  import org.objectweb.jac.lib.Attachment;
24  import org.objectweb.jac.util.Streams;
25  import org.objectweb.jac.util.WrappedThrowableException;
26  import java.io.File  ;
27  import java.io.FileInputStream  ;
28  import java.io.IOException  ;
29  import javax.swing.JFileChooser  ;
30  
31  /**
32   * This is a special value editor that allows the user to nicely edit
33   * an File. 
34   */
35  
36  public class AttachmentEditor extends FileEditor
37  {
38     public AttachmentEditor(Object   substance, FieldItem field) {
39        super(substance,field);
40     }
41  
42     public Object   getValue() {
43        String   file = textField.getText();
44        if (file.equals("")) {
45           return null;
46        }
47        try {
48           return new Attachment(Streams.readStream(new FileInputStream  (file)),
49                                 null,file);
50        } catch (IOException   e) {
51           throw new WrappedThrowableException(e);
52        }
53     }
54  
55     public void setValue(Object   value) {
56        super.setValue(value);
57        if (value==null) 
58           textField.setText("");
59        else
60           textField.setText(((Attachment)value).getName());
61     }
62  
63  
64     /**
65      * Returns a file chooser initialized with the current value
66      */
67     JFileChooser   createFileChooser() {
68        return new JFileChooser  (new File  (textField.getText()));
69     }
70  
71  }
72
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