1 /* 2 * This interpeter 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.JOptionPane; 15 import javax.swing.SwingUtilities; 16 import painter.SPainter; 17 import shapes.SCircle; 18 19 public class Interpreter1 { 20 21 private void interpreter() { 22 23 //CREATE OBJECTS TO THINK WITH 24 SPainter miro = new SPainter("Dot Thing", 400,400); 25 miro.setScreenLocation(0,0); 26 SCircle dot = new SCircle(180); 27 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("help")) { 39 JOptionPane.showMessageDialog(null,"Valid commands are : " + "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, "Unrecognizeable command: " + command.toUpperCase()); 46 } 47 } 48 } 49 50 // INFRASTRUCTURE FOR SOME SIMPLE PAINTING 51 52 public Interpreter1() { 53 interpreter(); 54 } 55 56 public static void main(String[] args) { 57 SwingUtilities.invokeLater(new Runnable() { 58 public void run() { 59 new Interpreter1(); 60 } 61 }); 62 } 63 } 64