KanizsaSquare.java
/* 
 * Program to paint a Kanizsa Square in the context of the Nonrepresentational 
 * Painting World (npw) 
 */

package npw;

import java.awt.Color;
import javax.swing.SwingUtilities;
import painter.SPainter;
import shapes.SCircle;
import shapes.SSquare;

public class KanizsaSquare {

    //THE SOLUTION TO THE KanizsaSquare PROBLEM

    private void paintTheImage() {
        SPainter painter = new SPainter("Kanizsa Square" ,400 ,400);
        SCircle dot = new SCircle(75);
        paintBlueCircle(painter, dot);
        paintRedCircle(painter, dot);
        paintGreenCircles(painter, dot);

        SSquare square = new SSquare(200);
        paintWhiteSquare(painter, square);
    }

    private void paintGreenCircles(SPainter painter, SCircle dot) {
        painter.setColor(Color.GREEN);
        painter.mlt(100);
        painter.mbk(100);
        painter.paint(dot);
        painter.mrt(200);
        painter.mfd(200);
        painter.paint(dot);
        painter.mbk(100);
        painter.mlt(100);
    }

    private void paintRedCircle(SPainter painter, SCircle dot) {
        painter.setColor(Color.RED);
        painter.mbk(100);
        painter.mrt(100);
        painter.paint(dot);
        painter.mfd(100);
        painter.mlt(100);
    }

    private void paintBlueCircle(SPainter painter, SCircle dot) {
        painter.setColor(Color.BLUE);
        painter.mfd(100);
        painter.mlt(100);
        painter.paint(dot);
        painter.mbk(100);
        painter.mrt(100);
    }

    private void paintWhiteSquare(SPainter painter, SSquare square) {
        painter.setColor(Color.WHITE);
        painter.paint(square);

    }


    //REQUIRED INFRASTRUCTURE

    public KanizsaSquare() {
        paintTheImage();
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                new KanizsaSquare();
            }

        });
    }
}