import java.awt.*;
public class image-canvas extends Canvas {
  Image im;
  public image-canvas (Image im) {
    this.im = im;
    MediaTracker mt = new MediaTracker (this);
    mt.addImage (im, 0);
    try {
      mt.waitForAll();
    } catch (InterruptedException e) {
      System.err.println ("Error loading image");
    }
    setSize (getPreferredSize());
  }
  public void paint (Graphics g) {
    if (im != null) {
      g.drawImage (im, 0, 0, this);
    }
  }
  public Dimension getPreferredSize () {
    return new Dimension(im.getWidth (this), im.getHeight(this));
  }
  public Dimension getMinimumSize () {
    return getPreferredSize();
  }
  public Dimension getMaximumSize () {
    return getPreferredSize();
  }
}