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     * -Random: paint a random color 
10    * -HELP: show a list of the commands in a dialog message box 
11    * -EXIT: terminate the program 
12    * 
13    */
14   
15   package interpreters;
16   
17   import java.awt.Color;
18   import javax.print.attribute.standard.PresentationDirection;
19   import javax.swing.JOptionPane;
20   import javax.swing.SwingUtilities;
21   import painter.SPainter;
22   import shapes.SCircle;
23   
24   
25   import java.awt.*;
26   import java.sql.SQLOutput;
27   
28   public class Interpreter3 {
29   
30       private void interpreter(){
31   
32           //CREATE OBJECTS TO THINK WITH
33           SPainter miro= new SPainter("Dot thing", 400, 400);
34           miro.setScreenLocation(0,0);
35           SCircle dot= new SCircle(180);
36   
37           //REPEATEDLY TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPRET IT
38           while (true){
39               String command= JOptionPane.showInputDialog(null, "command?");
40               if (command==null) {command="exit";} // user clicked on cancel
41               if (command.equalsIgnoreCase("blue")) {
42                   miro.setColor(Color.BLUE);
43                   miro.paint(dot);
44               } else if (command.equalsIgnoreCase("Red")) {
45                   miro.setColor(Color.RED);
46                   miro.paint(dot);
47               }else if (command.equalsIgnoreCase("Green")) {
48                   miro.setColor(Color.GREEN);
49                   miro.paint(dot);
50               } else if (command.equalsIgnoreCase("Yellow")) {
51                   miro.setColor(Color.YELLOW);
52                   miro.paint(dot);
53               }  else if (command.equalsIgnoreCase("random")) {
54                   miro.setColor(randomColor());
55                   miro.paint(dot);
56   
57   
58   
59               } else if (command.equalsIgnoreCase("help")) {
60                   JOptionPane.showMessageDialog(null, "Valid Commands are:"
61                           + "RED| BLUE|GREEN|YELLOW|RANDOM| HELP| EXIT");
62   
63               } else if (command.equalsIgnoreCase("exit")) {
64                   miro.end();
65                   System.out.println("Thank you for viewing the dots...");
66                   break;
67   
68               } else {
69                   JOptionPane.showMessageDialog(null, "Unrecognizable command:"
70                           + command.toUpperCase());
71   
72               }
73           }
74       }
75   
76       private static Color randomColor() {
77   
78               int rv = (int) (Math.random() * 256);
79               int gv = (int) (Math.random() * 256);
80               int bv = (int) (Math.random() * 256);
81               return new Color(rv, gv, bv);
82           }
83   
84   
85       //  INFRASTRUCTURE FOR SOME SIMPLE PAINTING
86       public Interpreter3() {
87           interpreter();
88   
89       }
90       public static void main(String []args) {
91           SwingUtilities.invokeLater(new Runnable() {
92               public void run() {
93                   new Interpreter3();
94               }
95           });
96       }
97   }
98