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

public class ImageFileView extends FileView {
    ImageIcon jpgIcon = new ImageIcon("images/jpgIcon.gif");
    ImageIcon gifIcon = new ImageIcon("images/gifIcon.gif");
    ImageIcon tiffIcon = new ImageIcon("images/tiffIcon.gif");
    
    public String getName(File f) {
	return null; // let the L&F FileView figure this out
    }
    
    public String getDescription(File f) {
	return null; // let the L&F FileView figure this out
    }
    
    public Boolean isTraversable(File f) {
	return null; // let the L&F FileView figure this out
    }
    
    public String getTypeDescription(File f) {
	String extension = getExtension(f);
	String type = null;

	if (extension != null) {
	    if (extension.equals("jpeg") ||
	        extension.equals("jpg")) {
		type = "JPEG Image";
	    } else if (extension.equals("gif")){
		type = "GIF Image";
	    } else if (extension.equals("tiff") ||
		       extension.equals("tif")) {
		type = "TIFF Image";
	    } 
	}
	return type;
    }
    
    public Icon getIcon(File f) {
	String extension = getExtension(f);
	Icon icon = null;
	if (extension != null) {
	    if (extension.equals("jpeg") ||
	        extension.equals("jpg")) {
		icon = jpgIcon;
	    } else if (extension.equals("gif")) {
		icon = gifIcon;
	    } else if (extension.equals("tiff") ||
	               extension.equals("tif")) {
		icon = tiffIcon;
	    } 
	}
	return icon;
    }
    
    // Get the extension of this file. Code is factored out
    // because we use this in both getIcon and getTypeDescription
    private String getExtension(File f) {

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

	if (i > 0 &&  i < s.length() - 1) {
	    ext = s.substring(i+1).toLowerCase();
	}
	return ext;
    }
}