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 * -HELP: show a list of commands in a dialog message box 8 * -EXIT: terminate the program 9 */ 10 11 package interpreters; 12 13 import painter.SPainter; 14 import shapes.SCircle; 15 16 import javax.swing.*; 17 import java.awt.*; 18 19 public class Interpreter2 { 20 21 private void interpreter() { 22 //CREATE OBJECTS TO THINK WITH 23 SPainter miro = new SPainter("Dot Thing", 400,400); 24 miro.setScreenLocation(0,0); 25 SCircle dot = new SCircle(180); 26 27 //REPEATEDLY TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPET IT 28 while (true) { 29 String command = JOptionPane.showInputDialog(null,"Command?"); 30 if ( command == null ) {command = "exit"; } //user clicked on Cancel 31 if ( command.equalsIgnoreCase("green") ) { 32 miro.setColor(Color.GREEN); 33 miro.paint(dot); 34 } else if ( command.equalsIgnoreCase("yellow") ) { 35 miro.setColor(Color.YELLOW); 36 miro.paint(dot); 37 } else if ( command.equalsIgnoreCase("blue") ) { 38 miro.setColor(Color.BLUE); 39 miro.paint(dot); 40 } else if ( command.equalsIgnoreCase("red") ) { 41 miro.setColor(Color.RED); 42 miro.paint(dot); 43 } else if ( command.equalsIgnoreCase("help") ) { 44 JOptionPane.showMessageDialog(null, "Validc command are: " 45 + "RED | BLUE | YELLOW | GREEN | HELP | EXIT "); 46 } else if ( command.equalsIgnoreCase("exit") ) { 47 miro.end(); 48 System.out.println("Thank you for viewing the dots ..."); 49 break; 50 } else { 51 JOptionPane.showMessageDialog(null, "Unrecognizable command: " 52 + command.toUpperCase()); 53 } 54 } 55 56 } 57 58 // INFRASTRUCTURE FOR SOME SIMPLE PAINTING 59 60 public Interpreter2() { 61 interpreter(); 62 } 63 64 public static void main(String[] args) { 65 SwingUtilities.invokeLater(new Runnable() { 66 public void run() { 67 new Interpreter2(); 68 } 69 }); 70 } 71 } 72