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 commands in the dialog message box
10  * - EXIT: terminate the program
11  */
12 package interpreters;
13 
14 import java.awt.Color;
15 import javax.swing.JOptionPane;
16 import javax.swing.SwingUtilities;
17 import painter.SPainter;
18 import shapes.SCircle;
19 
20 /**
21  *
22  * @author mbilodea
23  */
24 public class Interpreter2 {
25     
26     private void interpreter() {
27         
28         // CREATE OBJECTS TO THINK WITH
29         SPainter micro = new SPainter("Dot Thing",400,400);
30         micro.setScreenLocation(0,0);
31         SCircle dot = new SCircle(180);
32         
33         // REPEATEDLY TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPRET IT
34         while ( true ) {
35             String command = JOptionPane.showInputDialog(null, "Command?");
36             if ( command == null ) { command = "exit"; } // user clicked on Cancel
37             if ( command.equalsIgnoreCase("blue") ) {
38                 micro.setColor(Color.BLUE);
39                 micro.paint(dot);
40             } else if ( command.equalsIgnoreCase("red") ) {
41                 micro.setColor(Color.RED);
42                 micro.paint(dot);
43             } else if ( command.equalsIgnoreCase("green") ) {
44                 micro.setColor(Color.GREEN);
45                 micro.paint(dot);
46             } else if ( command.equalsIgnoreCase("yellow") ) {
47                 micro.setColor(Color.YELLOW);
48                 micro.paint(dot);
49             } else if ( command.equalsIgnoreCase("help") ) {
50                 JOptionPane.showMessageDialog(null,"Valid commands are: "
51                         + "RED | BLUE | GREEN | YELLOW | HELP | EXIT ");
52             } else if ( command.equalsIgnoreCase("exit") ) {
53                 micro.end();
54                 System.out.println("Thank you for viewing the dots ...");
55                 break;
56             } else {
57                 JOptionPane.showMessageDialog(null, "Unrecognizable command: "
58                         + command.toUpperCase());
59             }
60         }
61     }
62     
63     // INFRASTRUCTURE FOR SOME SIMPLE PAINTING
64     
65     public Interpreter2() {
66         interpreter();
67     }
68 
69     public static void main(String[] args) {
70         SwingUtilities.invokeLater(new Runnable() {
71             public void run() {
72                 new Interpreter2();
73             }
74         });
75     }
76     
77 }