// mas964 ps5
// A calligraphy applet
// this one is really simple, but has some nice properties.

import java.applet.*;
import java.awt.*;
import java.lang.Math;

public class Calligraph extends Applet {
  Graphics g;
  int lastX, lastY;

  public boolean mouseDown(Event e, int mouseX, int mouseY) {
    lastX = mouseX;
    lastY = mouseY;
    return true;
  }

  // draw a rectangle between the last mouse event and this one
  public boolean mouseDrag(Event e, int mouseX, int mouseY) {
    Graphics g = getGraphics();
    g.fillRect(Math.min(lastX, mouseX), Math.min(lastY, mouseY),
	       Math.abs(lastX - mouseX) + 1, Math.abs(lastY - mouseY) + 1);
    lastX = mouseX;
    lastY = mouseY;
    return true;
  }

  // space bar clears the screen
  public boolean keyDown(Event e, int key) {
    if ((char)(e.key) == ' ') {
      repaint();
      return true;
    } else
      return super.keyDown(e, key);
  }
			       
  public void init() {
    g = getGraphics();
    this.setForeground(Color.black);
    this.setBackground(Color.white);
    super.init();
  }
}