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     * -GREEN: paint a green dot 
8     * -YELLOW: paint a yellow dot 
9     * -HELP: show a list of the commands in a dialog message box 
10    * -EXIT: terminate the program 
11    */
12   
13   
14   package interpreters;
15   
16   import java.awt.Color;
17   import javax.swing.JOptionPane;
18   import javax.swing.SwingUtilities;
19   import painter.SPainter;
20   import shapes.SCircle;
21   
22   public class Interpreter2 {
23       private void interpreter(){
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           // REPEATEDLY TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPRET IT
29           while(true){
30               String command = JOptionPane.showInputDialog(null, "Command?");
31               if(command == null){command = "exit";} // user clicked on Cancel
32               if(command.equalsIgnoreCase("blue")){
33                   miro.setColor(Color.BLUE);
34                   miro.paint(dot);
35               }else if(command.equalsIgnoreCase("red")) {
36                   miro.setColor(Color.RED);
37                   miro.paint(dot);
38               }else if(command.equalsIgnoreCase("green")) {
39                   miro.setColor(Color.GREEN);
40                   miro.paint(dot);
41   
42               }else if(command.equalsIgnoreCase("yellow")) {
43                   miro.setColor(Color.YELLOW);
44                   miro.paint(dot);
45               }else if(command.equalsIgnoreCase("help")){
46                   JOptionPane.showMessageDialog(null, "Valid commands are: "
47                           + "RED | BLUE | GREEN | YELLOW | HELP | EXIT ");
48               }else if(command.equalsIgnoreCase("exit")){
49                   miro.end();
50                   System.out.println("Thank you for viewing the dots...");
51                   break;
52               }else{
53                   JOptionPane.showMessageDialog(null, "Unrecognizable command: "
54                           + command.toUpperCase());
55               }
56           }
57       }
58   
59       // INFRASTRUCTURE FOR SIMPLE PAINTING
60   
61       public Interpreter2(){
62           interpreter();
63       }
64   
65       public static void main(String[] args){
66           SwingUtilities.invokeLater(new Runnable(){
67               public void run(){
68                   new Interpreter2();
69               }
70           });
71       }
72   }
73