import java.io.File;
import javax.swing.*;
import javax.swing.filechooser.*;

public class ImageFilter extends FileFilter {
    final static String jpeg = "jpeg";
    final static String jpg = "jpg";
    final static String gif = "gif";
    final static String tiff = "tiff";
    final static String tif = "tif";
    
    // Accept all directories and all gif, jpg, or tiff files.
    public boolean accept(File f) {

	if (f.isDirectory()) {
	    return true;
	}

	String s = f.getName();
	int i = s.lastIndexOf('.');

	if (i > 0 &&  i < s.length() - 1) {
	    String extension = s.substring(i+1).toLowerCase();
	    if (tiff.equals(extension) ||
		tif.equals(extension) ||
		gif.equals(extension) ||
		jpeg.equals(extension) ||
		jpg.equals(extension)) {
		    return true;
	    } else {
		return false;
	    }
	}

	return false;
    }
    
    // The description of this filter
    public String getDescription() {
	return "Just Images";
    }
}