* This method is called whenever a pan gesture event occurs.
* @param[in] scene The scene the pan gesture event occurs in.
* @param[in] panEvent The event that has occurred.
+ * @param[in] actor The actor where the event occurred. If this is null, the actor is found through hittest.
*/
- void Process(Scene& scene, const PanGestureEvent& panEvent) override;
+ void Process(Scene& scene, const PanGestureEvent& panEvent, Actor* actor = nullptr) override;
/**
* Adds a gesture detector to this gesture processor.