public void lock() {
   super.lock();
   _degrees.lock();
   _minutes.lock();
   _seconds.lock();
   _direction.lock();
 }
  protected void initialize() {
    super.initialize();

    _degrees = new ScDoubleField();
    _degrees.setWidth(3);

    _minutes = new ScDoubleField();
    _minutes.setWidth(3);

    _seconds = new ScDoubleField();
    _seconds.setWidth(5);

    _direction = new ScDropdownField();
    _direction.addOption("N", "North");
    _direction.addOption("S", "South");
    _direction.addOption("E", "East");
    _direction.addOption("W", "West");
  }