/* this midlet creates a mutable image, draw text within the image and put it
onto a form. Note the precedures of changing Mutable image to immutable because
Forms, alerts, choice and Image Items only accept immutable images*/

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
//import java.io.IOException;

public class MuteImage extends MIDlet implements CommandListener{
  private Display display; // a display
  private Form fmMain; // main form
  private Command cmExit; // exit command
  private static final String mssg = "MIDP Course"; // reference to a message

  // constructor
  public MuteImage(){
    display = Display.getDisplay(this);

    // add command
    cmExit = new Command("Exit", Command.EXIT, 1);

    // create a muttable image and get graphics object for image
    Image tmpimg = Image.createImage(90, 30); // determine size
    Graphics graphic = tmpimg.getGraphics();

    // Specify font face (system's font), style and size more about this in
    // future sessions

    Font fnt = Font.getFont(Font.FACE_SYSTEM, Font.STYLE_ITALIC, Font.SIZE_MEDIUM);
    graphic.setFont(fnt);

    // position the text at the Centre
    graphic.drawString(mssg, (tmpimg.getWidth() / 2) - (fnt.stringWidth(mssg) / 2)
        , 0, Graphics.TOP |Graphics.LEFT);

    // draw a recangle around the image
    graphic.drawRect(0, 0, tmpimg.getWidth()-1, tmpimg.getHeight() - 1);

    //create form, add command and listen for events
    fmMain = new Form(" ");
    fmMain.addCommand(cmExit);
    fmMain.setCommandListener(this);

    // convert the image to immutable and to the form
    fmMain.append(Image.createImage(tmpimg));
    display.setCurrent(fmMain);

  }

  // start app
  public void startApp(){
    display.setCurrent(fmMain);
  }

  // pause app
  public void pauseApp(){

  }

  // destroy app
  public void destroyApp(boolean unconditional){

  }

  // commandAction method
  public void commandAction(Command c, Displayable s){
    if(c == cmExit){
      destroyApp(false);
          notifyDestroyed();
    }
  }
}