import java.applet.*;
import java.awt.*;

// used: setenv CLASSPATH .:/n/state/0/parent/WWW/java

public class ClearableScribble extends ColorScribble {
  private Button clear_button;

  public void init() {
    super.init();
    // Create a button and addit to the applet
    clear_button = new Button("Clear");
    clear_button.setForeground(Color.black);
    clear_button.setBackground(Color.lightGray);
    this.add(clear_button);
  }

  public boolean action(Event event, Object arg) {
    // If our button was clicked on, handle it.
    // Otherwise, let our superclass handle it if it wants to.
    if (event.target == clear_button) {
      Graphics g = this.getGraphics();
      Rectangle r = this.bounds();
      g.setColor(this.getBackground());
      g.fillRect(r.x,r.y,r.width,r.height);
      g.setColor(this.getForeground());
      return true;
    }
    else return super.action(event,arg);
  }
}