public interface DrawingObservable
| Modifier and Type | Method and Description |
|---|---|
void |
addDrawingObserver(Observer observer)
Adds a new
Observer. |
void |
deleteDrawingObserver(Observer observer)
Deletes a registered drawing
Observer from the list of registered
ones. |
void |
deleteDrawingObservers()
Deletes all the registered drawing
Observer objects. |
void addDrawingObserver(Observer observer)
Observer.observer - the Observer to addvoid deleteDrawingObserver(Observer observer)
Observer from the list of registered
ones.observer - to delete from the registered onesvoid deleteDrawingObservers()
Observer objects.