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FileChooser.java
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85 lines (71 loc) · 3.2 KB
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/*BEGIN_COPYRIGHT_BLOCK
*
* Copyright (c) 2001-2015, JavaPLT group at Rice University (drjava@rice.edu)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the names of DrJava, DrScala, the JavaPLT group, Rice University, nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software is Open Source Initiative approved Open Source Software.
* Open Source Initative Approved is a trademark of the Open Source Initiative.
*
* This file is part of DrScala. Download the current version of this project
* from http://www.drscala.org/.
*
* END_COPYRIGHT_BLOCK*/
package edu.rice.cs.util.swing;
import edu.rice.cs.plt.io.IOUtil;
import java.io.File;
import javax.swing.JFileChooser;
public class FileChooser extends JFileChooser {
/** File system root for chooser */
protected File _root;
/** Creates a FileChooser with the given root, allowing only a single selection WITHIN the specified file system
* @param root the root directory to display in the tree
*/
public FileChooser(File root) {
super(root);
_init(root);
}
/*---------- INITIALIZATION METHODS ----------*/
/** Sets up the GUI components of the dialog */
private void _init(final File root) {
setRoot(root);
setFileSelectionMode(FILES_ONLY);
setDialogType(CUSTOM_DIALOG);
setApproveButtonText("Select");
}
public void setRoot(File root) {
_root = root; // may be null
if (root != null) {
if (! root.exists()) _root = null;
else if (! root.isDirectory()) _root = root.getParentFile();
}
}
public File getRoot() { return _root; }
public boolean isTraversable(File f) {
if (_root == null) return super.isTraversable(f);
// Utilities.show("isTraversable(" + f + ") called; _root = " + _root);
return f != null && f.isDirectory() && IOUtil.isMember(f, _root);
}
}