public void RegisterObserver(ICursorObserver observer) { if (!_observers.Contains(observer)) { _observers.Add(observer); } }
public void DeleteObserver(ICursorObserver observer) { _observers.Remove(observer); }
public void RegisterObserver(ICursorObserver observer) { if (!_observers.Contains(observer)) { _observers.Add(observer); } }
public void DeleteObserver(ICursorObserver observer) { _observers.Remove(observer); }