1    
2    /*This interpreter is intended to paint different colored dots in a window. 
3    * 
4    *The commands 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.SwingUtilities;
15   import painter.SPainter;
16   import shapes.SCircle;
17   import javax.swing.JOptionPane;
18   
19   public class Interpreter1 {
20       private void interpreter() {
21   
22           //Create objects to think with
23           SPainter miro = new SPainter("Dot Thing", 400, 400);
24           miro.setScreenLocation(0,0);
25           SCircle dot = new SCircle(180);
26   
27           //Repeatedly take a command from an input dialog pox and interpret it
28           while (true) {
29               String command = JOptionPane.showInputDialog(null,"Command?");
30               if ( command == null) { command = "exit" ;} // user clicked on cancel
31               if ( command.equalsIgnoreCase("blue")) {
32                   miro.setColor(Color.BLUE);
33                   miro.paint(dot);
34               } else if ( command.equalsIgnoreCase("red")) {
35                   miro.setColor(Color.RED);
36                   miro.paint(dot);
37               } else if ( command.equalsIgnoreCase("help")) {
38                   JOptionPane.showMessageDialog(null, "Valid commands are:" +
39                           "RED / BLUE / HELP / EXIT");
40               } else if (command.equalsIgnoreCase("exit")) {
41                   miro.end();
42                   System.out.println("Thank you for viewing the dots ...");
43                   break;
44               } else {
45                   JOptionPane.showMessageDialog(null, "Unrecognizable command:" +
46                           command.toUpperCase());
47   
48               }
49               }
50   
51               }
52   
53               //Infrastructure for some simple painting
54   
55           public Interpreter1() {
56           interpreter();
57           }
58   
59           public static void main(String[] args) {
60               SwingUtilities.invokeLater(new Runnable() {
61                   @Override
62                   public void run() {
63                       new Interpreter1();
64                   }
65               });
66           }
67   
68   
69           }
70   
71   
72   
73   
74   
75   
76