A simple FileFilter class that works by filename extension
/*
* Copyright (c) Ian F. Darwin, http://www.darwinsys.com/, 1996-2002.
* All rights reserved. Software written by Ian F. Darwin and others.
* $Id: LICENSE,v 1.8 2004/02/09 03:33:38 ian Exp $
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Java, the Duke mascot, and all variants of Sun's Java "steaming coffee
* cup" logo are trademarks of Sun Microsystems. Sun's, and James Gosling's,
* pioneering role in inventing and promulgating (and standardizing) the Java
* language and environment is gratefully acknowledged.
*
* The pioneering role of Dennis Ritchie and Bjarne Stroustrup, of AT&T, for
* inventing predecessor languages C and C++ is also gratefully acknowledged.
*/
import java.io.File;
import java.util.ArrayList;
import java.util.Iterator;
/**
* A simple FileFilter class that works by filename extension, like the one in
* the JDK demo called ExampleFileFilter, which has been announced to be
* supported in a future Swing release.
*/
public class JFileFilter extends javax.swing.filechooser.FileFilter {
protected String description;
protected ArrayList exts = new ArrayList();
public void addType(String s) {
exts.add(s);
}
/** Return true if the given file is accepted by this filter. */
public boolean accept(File f) {
// Little trick: if you don't do this, only directory names
// ending in one of the extentions appear in the window.
if (f.isDirectory()) {
return true;
} else if (f.isFile()) {
Iterator it = exts.iterator();
while (it.hasNext()) {
if (f.getName().endsWith((String) it.next()))
return true;
}
}
// A file that didn't match, or a weirdo (e.g. UNIX device file?).
return false;
}
/** Set the printable description of this filter. */
public void setDescription(String s) {
description = s;
}
/** Return the printable description of this filter. */
public String getDescription() {
return description;
}
}
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