/**************************************
* Source & Further Reading: J. W. Muchow (2002), Core J2ME Technology & MIDP, Sun MICROSYSTEMS
***************************************/


// Form with gauge to adjust sleep interval of timer

import javax.microedition.lcdui.*;

public class SleepForm extends Form implements CommandListener{
  private AnimTimer midlet; // Main midlet
  private Command cmHome, cmBack, cmSave; // Commands
  private Gauge gaSleep; // gauge

  // constructor
  public SleepForm(String title, AnimTimer midlet){
    // call the constructor
    super(title);
    // save refernce to midlet to access displaymanager
    this.midlet = midlet;

    // add commands
    cmBack = new Command("Back", Command.BACK, 2);
    cmSave = new Command("Save", Command.SCREEN, 1);
    cmHome = new Command("Home", Command.SCREEN, 2);

    // add gauge
    gaSleep = new Gauge("Timer Sleep", true, 100, 1000);

    // gauge holds values of 0 to 100, divide the current sleep by 10
    gaSleep.setValue(midlet.cvTimer.getSleep() / 10);

    append (gaSleep);
    addCommand(cmSave);
    addCommand(cmHome);
    addCommand(cmBack);
    setCommandListener(this);
  }

  // event handling
  public void commandAction(Command c, Displayable d){
    if(c == cmSave){
      // Gauge returns vlaue between 0 to 100, we want miliseconds so multiply by 10

      midlet.cvTimer.setSleep(gaSleep.getValue()* 10);

      // back to main midlet
      midlet.displayMgr.home();
    }
    else if(c == cmBack){
      // pop the last displayable off the stack
      midlet.displayMgr.popDisplayable();
    }
    else if (c == cmHome){
      midlet.displayMgr.home();
    }
  }
}