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 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   package interpreters;
11   
12   import java.awt.Color;
13   import javax.swing.JOptionPane;
14   import javax.swing.SwingUtilities;
15   import painter.SPainter;
16   import shapes.SCircle;
17   
18   public class Interpreter1 {
19       private void interpreter(){
20   
21           //CREATE OBJECTS TO THINK WITH
22           SPainter miro = new SPainter("Dot Thing", 400,400);
23           miro.setScreenLocation(0,0);
24           SCircle dot = new SCircle(180);
25   
26           //REPEATEDLY TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPRET IT
27           while ( true ) {
28               String command = JOptionPane.showInputDialog(null,"Command?");
29               if ( command == null ) {command = "exit"; } //user clicked on Cancel
30               if (command.equalsIgnoreCase("blue") ){
31                   miro.setColor(Color.BLUE);
32                   miro.paint(dot);
33               } else if ( command.equalsIgnoreCase("red") ) {
34                   miro.setColor(Color.RED);
35                   miro.paint(dot);
36               } else if ( command.equalsIgnoreCase("help") ) {
37                   JOptionPane.showMessageDialog(null, "Valid commands are:" + "RED | BLUE | HELP | EXIT ");
38               } else if ( command.equalsIgnoreCase("exit") ) {
39                   miro.end();
40                   System.out.println("Thank you for viewing the dots ...");
41                   break;
42               } else {
43                   JOptionPane.showMessageDialog(null, "Unrecognizable command:" + command.toUpperCase());
44               }
45           }
46       }
47   
48       // INFRASRTUCTURE FOR SOME SIMPLE PAINTING
49   
50       public Interpreter1() {
51           interpreter();
52       }
53   
54       public static void main(String[] args) {
55           SwingUtilities.invokeLater(new Runnable() {
56               public void run() {
57                   new Interpreter3();
58               }
59           });
60       }
61   }
62