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

/**
 * A canvas that contains a background picture which is 
 stretched to fill the entire canvas.
 * @author Torbjörn Nilsson
 * @version 1.0
*/
public class Icon extends Canvas {
  Image bkg;
  ClientThread cliTh;
  int newState;

/**
 * Use this contructor.
 * pic - referens to picture to Iconize
 * ct - the CLientThread object whose state will be updated
 * state - the new state that will be set in the given ct
*/
  Icon(Image pic, ClientThread ct, int state) {
    bkg = pic;
    cliTh = ct;
    newState = state;

    resize(100,100);

  }

/**
 * Generate a callback to the ClientThread given in contructor, and set a new screen in it.
*/
  public boolean mouseDown(Event e, int x, int y) {
    cliTh.setNewScreen(newState);
//    System.out.println("Icon: "+this+" "+newState);
    return true;
  }

/**
 * No flickering.
*/
  public void update(Graphics g) {    // override
    paint(g);
  }

/**
 * Draw the icon pic.
*/
  public void paint(Graphics g) {
//    System.out.println("canvas:"+g);
    Dimension d = size();
    if (bkg != null)
      g.drawImage(bkg,0,0,d.width, d.height, this );
  }

}