1    /* 
2    * This interpreter is intended to paint different colored dots in a window. 
3    * 
4    * The command that the interpreter can recognize and respond to are : 
5    *  - BLUE: paint a blue dot 
6    *  - RED: paint a red dot 
7    *  - HELP: show a list of the commands in a dialog message box 
8    *  - EXIT: terminate the program 
9     */
10   
11   package interpreters;
12   
13   import java.awt.Color;
14   import javax.swing.JOptionPane;
15   import javax.swing.SwingUtilities;
16   import painter.SPainter;
17   import shapes.SCircle;
18   
19   
20   public class Interpreter1 {
21   
22       private void interpreter() {
23   
24           // CREATE OBJECTS TO THINK WITH
25           SPainter miro = new SPainter("Dot Thing",400,400);
26           miro.setScreenLocation(0,0);
27           SCircle dot = new SCircle(180);
28   
29           // REPEATEDLY TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPRET IT
30           while (true) {
31               String command = JOptionPane.showInputDialog(null,"Command?");
32               if (command == null) { command = "exit"; } // user clicked on cancel
33               if ( command.equalsIgnoreCase("blue")) {
34                   miro.setColor(Color.BLUE);
35                   miro.paint(dot);
36               } else if ( command.equalsIgnoreCase("red")) {
37                   miro.setColor(Color.RED);
38                   miro.paint(dot);
39               } else if ( command.equalsIgnoreCase("help")) {
40                   JOptionPane.showMessageDialog(null, "Valid commands are:"
41                           + "RED | BLUE | HELP | EXIT ");
42               } else if (command.equalsIgnoreCase("exit")) {
43                   miro.end();
44                   System.out.println("Thank you for viewing the dots...");
45                   break;
46               } else {
47                   JOptionPane.showMessageDialog(null, "Unrecognizable command: ");
48   
49               }
50   
51               }
52           }
53   
54                 // INFRASTRUCTRE FOR SOME SIMPLE PAINTING
55              public Interpreter1() {
56                  interpreter();
57              }
58   
59              public static void main(String[] args) {
60           SwingUtilities.invokeLater(new Runnable() {
61               public void run() {
62                   new Interpreter1();
63               }
64   
65               });
66           }
67   
68   
69              }
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