// File: TestAwt15.java (Module 9)
//
// Author: Rahul Simha
// Created: October 13, 1998
//
// Image tracking via MediaTracker.

import java.awt.*;
import java.net.*;

class NewFrame extends Frame {

  // Constructor.
  public NewFrame (int width, int height)
  {
    // Set the title and other frame parameters.
    this.setTitle ("Gif image");
    this.setResizable (true);
    this.setBackground (Color.cyan);
    this.setSize (width, height);

    // Show the frame.
    this.setVisible (true);
  }

  // Override paint():
  public void paint (Graphics g)
  {
    Toolkit tk = Toolkit.getDefaultToolkit ();

    try {
      URL u = new URL ("http://www.seas.gwu.edu/~simha/canyon.jpeg");
      Image img = tk.getImage (u);

      // Create an instance of MediaTracker and 
      // pass a Frame instance as parameter (via "this").
      MediaTracker mt = new MediaTracker (this);

      // Add the image instance to the tracker.
      mt.addImage (img, 1);

      // We will use a "wait" (clock) cursor while the
      // image is loading.
      this.setCursor (Cursor.getPredefinedCursor (Cursor.WAIT_CURSOR));

      // Ask the MediaTracker to wait.
      try {
	mt.waitForID (1);
      }
      catch (InterruptedException e) {
	System.out.println (e);
      }
      // Now the image has been loaded.

      // Return to default cursor.
      this.setCursor (Cursor.getPredefinedCursor (Cursor.DEFAULT_CURSOR));

      // Draw the complete image.
      g.drawImage (img, 0, 0, this);
    }
    catch (MalformedURLException e) {
      System.out.println (e);
    }
  } // "paint"

} // End of class "NewFrame"

public class TestAwt15 {

  public static void main (String[] argv)
  {
    NewFrame nf = new NewFrame (300, 200);
  }

}