1    package npw;
2    
3    import java.awt.Color;
4    import javax.swing.SwingUtilities;
5    import painter.SPainter;
6    import shapes.SCircle;
7    import shapes.SSquare;
8    
9    public class KanizsaSquare {
10   
11       //The solution to the KanizsaSquare Problem
12   
13       private void paintTheImage() {
14           SPainter painter = new SPainter("Kanizsa Square",400,400);
15   
16           SCircle dot = new SCircle(75);
17           paintBlueCircle(painter, dot);
18           paintRedCircle(painter, dot);
19           paintGreenCircles(painter, dot);
20   
21           SSquare square = new SSquare(200);
22           paintWhiteSquare(painter, square);
23       }
24   
25       private void paintWhiteSquare(SPainter painter, SSquare square) {
26           painter.setColor(Color.WHITE);
27           painter.paint(square);
28       }
29   
30       private void paintGreenCircles(SPainter painter, SCircle dot) {
31           painter.setColor(Color.GREEN);
32           painter.mlt(100);
33           painter.mbk(100);
34           painter.paint(dot);
35           painter.moveToCenter();
36           painter.setColor(Color.GREEN);
37           painter.mrt(100);
38           painter.mfd(100);
39           painter.paint(dot);
40           painter.moveToCenter();
41   
42       }
43   
44       private void paintRedCircle(SPainter painter, SCircle dot) {
45           painter.setColor(Color.RED);
46           painter.mrt(100);
47           painter.mbk(100);
48           painter.paint(dot);
49           painter.moveToCenter();
50       }
51   
52       private void paintBlueCircle(SPainter painter, SCircle dot) {
53           painter.setColor(Color.BLUE);
54           painter.mlt(100);
55           painter.mfd(100);
56           painter.paint(dot);
57           painter.moveToCenter();
58       }
59   
60       //required infrastructure
61   
62       public KanizsaSquare() {
63           paintTheImage();
64       }
65   
66       public static void main(String[] args) {
67           SwingUtilities.invokeLater(new Runnable() {
68               public void run() {
69                   new KanizsaSquare();
70               }
71           });}}