package com.knutejohnson.demos;

import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.io.*;
import java.net.*;
import javax.swing.*;

public class MediaTrackerExample extends JPanel {
    private Image image;

    public MediaTrackerExample(String fname) {
        try {
            image = getToolkit().createImage(fname);
            MediaTracker mt = new MediaTracker(this);
            mt.addImage(image,0);
            mt.waitForID(0);
            setPreferredSize(new Dimension(
             image.getWidth(this),image.getHeight(this)));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public MediaTrackerExample(URL url) {
        try {
            image = getToolkit().createImage(url);
            MediaTracker mt = new MediaTracker(this);
            mt.addImage(image,0);
            mt.waitForID(0);
            setPreferredSize(new Dimension(
             image.getWidth(this),image.getHeight(this)));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public void paint(Graphics g) {
        // image observer not required
        g.drawImage(image,0,0,null);
    }

    public static void main(final String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                JFrame f = new JFrame("MediaTrackerExample");
                f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                MediaTrackerExample mte = new MediaTrackerExample(args[0]);
                f.getContentPane().add(mte,BorderLayout.CENTER);
                f.pack();
                f.setVisible(true);
            }
        });
    }
}