01: /*BEGIN_COPYRIGHT_BLOCK
02: *
03: * Copyright (c) 2001-2007, JavaPLT group at Rice University (javaplt@rice.edu)
04: * All rights reserved.
05: *
06: * Redistribution and use in source and binary forms, with or without
07: * modification, are permitted provided that the following conditions are met:
08: * * Redistributions of source code must retain the above copyright
09: * notice, this list of conditions and the following disclaimer.
10: * * Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: * * Neither the names of DrJava, the JavaPLT group, Rice University, nor the
14: * names of its contributors may be used to endorse or promote products
15: * derived from this software without specific prior written permission.
16: *
17: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18: * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19: * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20: * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
21: * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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23: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
24: * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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26: * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27: * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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35: * END_COPYRIGHT_BLOCK*/
36:
37: package edu.rice.cs.util.swing;
38:
39: import edu.rice.cs.plt.io.IOUtil;
40: import edu.rice.cs.util.swing.Utilities;
41:
42: import java.io.File;
43:
44: import javax.swing.JFileChooser; //import javax.swing.filechooser.FileFilter;
45: import javax.swing.filechooser.FileView;
46:
47: import java.awt.Component;
48:
49: public class FileChooser extends JFileChooser {
50:
51: /** File system root for chooser */
52: protected File _root;
53:
54: /** Creates a FileChooser with the given root, allowing only a single selection WITHIN the specified file system
55: * @param root the root directory to display in the tree
56: */
57: public FileChooser(File root) {
58: super (root);
59: _init(root);
60: }
61:
62: /*---------- INITIALIZATION METHODS ----------*/
63:
64: /** Sets up the GUI components of the dialog */
65: private void _init(final File root) {
66:
67: _root = root; // may be null
68: if (root != null) {
69: if (!root.exists())
70: _root = null;
71: else if (!root.isDirectory())
72: _root = root.getParentFile();
73: }
74:
75: setFileSelectionMode(FILES_ONLY);
76: setDialogType(CUSTOM_DIALOG);
77: setApproveButtonText("Select");
78: }
79:
80: public boolean isTraversable(File f) {
81: if (_root == null)
82: return super .isTraversable(f);
83: // Utilities.show("isTraversable(" + f + ") called; _root = " + _root);
84: return f != null && f.isDirectory()
85: && IOUtil.isMember(f, _root);
86: }
87: }
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