Awesome Paint Brush

Well, this happens to me accidentally while I  was teaching a set of my kiddies who were indeed interested in making computer games about how to do kinda’ simulation using a computer programming language (java). On the other hand I too wanted them to show kind of multiple inheritance in action.  As you see in the code below the mistake was incredible. Miraculously I have written down a piece of code to simulate a paint brush. The code is very original and indeed may have some hidden professional mistakes. I want let em as they are and some body down who read this blog is expected to correct this code for professional mistakes. 

Picture :  An awesome art from an awesome tool

If you run the code below try whether you could draw the above paint :D.

import java.awt.*;

import javax.swing.*;

import java.awt.event.*;

public class Pinsal extends JPanel implements

 MouseMotionListener {

  private int X, Y;

  private Image image1;

  private Image image2;

 

public static void main(String[] args) {

  JFrame frame = new JFrame();

  frame.getContentPane().add(new Pinsal());

  frame.setSize(500, 300);

  frame.show();

  }

  public Pinsal() {

  addMouseMotionListener(this);

  setVisible(true);

  }

  @Override

  public void mouseMoved(MouseEvent event) {

                  // implements MouseMotionListner.mouseMoved

  X = (int) event.getPoint().getX();

  Y = (int) event.getPoint().getY();

  repaint();

  }

  @Override

  public void mouseDragged(MouseEvent event) {

        // implements MouseMotionListner.mouseDragged

  mouseMoved(event);

  }

  @Override

  public void update(Graphics graphics) {

        // javax.swing.Jcomponent.update

  paint(graphics);

  }

  @Override

  public void paint(Graphics g) {

        // javax.swing.Jcomponent.paint

  Dimension dim = getSize();

  draw();

  Graphics graphics1 = image1.getGraphics();

  Graphics graphics2 = image2.getGraphics();                 

  graphics1.setColor(getBackground());

  graphics1.fillRect(0, 0, dim.width, dim.height);

  //colorScreen(image1.getGraphics());

  colorScreen(image2.getGraphics());

  //g.drawImage(image1, 0, 0, null);

  g.drawImage(image2, 0, 0, null);

  }                                                   

  private void draw() {

  Dimension dim = getSize();

  if (image1 == null || image1.getWidth(null) != dim.width

  || image1.getHeight(null) != dim.height) {

  image1 = createImage(dim.width, dim.height);

  }

  if (image2 == null || image2.getWidth(null) != dim.width

              || image2.getHeight(null) != dim.height) {

              image2 = createImage(dim.width, dim.height);

              }

  }

  public void colorScreen(Graphics g) {

  int size = 15;

  g.setColor(Color.CYAN);

  g.fillOval(X - size  / 2, Y - size  / 2, size , size );

  }

}