// ITU F2005 JMA - Homework week 02
// Exercise2.java
// 2005-02-15 Kenn A. Thisted

/*
 * Program a simple SMS sender that allows the user to create a SMS message in 
 * the display of the mobile device (hint: use a Textbox or Textfield object). 
 * Make a "Send" button that prints the message in the console area of the 
 * toolkit when the "Send" button is activated.
 */
 
/*
 * Related links:
 * http://www.gsm-technology.com/gsm.php/en,unlock,subpage_id,smsfaq.html (*)
 * http://java.sun.com/j2me/docs/wtk2.1/user_html/wma.html
 * http://www.wirelessdevnet.com/channels/java/features/simplewire/
 */

import javax.microedition.midlet.MIDlet;
import javax.microedition.lcdui.*;

public class Exercise2 extends MIDlet implements CommandListener {
  
  private Display display;
  private TextBox smsMessage;
  
  static final Command sendCommand = new Command ("Send", Command.SCREEN, 1);
  static final Command exitCommand = new Command ("Exit", Command.STOP, 2);

  public Exercise2() {
  }

  public void startApp() {
  	
    display = Display.getDisplay(this);

	// 160 characters for text messaging transport (7-bit ASCII). (*)
    smsMessage = new TextBox("Enter SMS Message", null, 160, 0);
    
    smsMessage.addCommand(sendCommand);
    smsMessage.addCommand(exitCommand);
    smsMessage.setCommandListener(this);
      	
    display.setCurrent(smsMessage);
  }

  public void pauseApp() {
  }

  public void destroyApp(boolean unconditional) {
    notifyDestroyed();
  }
  
  public void commandAction(Command c, Displayable d) {
  	
  	if (c == sendCommand) {
  		
  		System.out.println("SMS message: " + smsMessage.getString());
  		
  	} else {
  		
  		destroyApp(true);
  		
  	}
  	
  } // commandAction()

}