00001 //--- < EVENTLISTENER.H > -------| ViewGraph - A Flexible Graph view Framework | 00002 // 00003 // Event listeners receive events they are 00004 // interested in. Derive your 00005 // class from EventListener to be able to 00006 // listen to events from other objects. 00007 // 00008 // $Author: botik32 $ 00009 // $Revision: 1.1 $ 00010 // $Date: 2004/04/30 12:39:21 $ 00011 //-----------------------------------------------------------------------------/ 00012 00013 #ifndef EVENTLISTENER_H 00014 #define EVENTLISTENER_H 00015 00016 class Event; 00017 00018 class EventListener 00019 { 00020 protected: 00021 public: 00022 virtual void listen_event( Event * ){}; 00023 }; 00024 00025 #endif 00026 00027 // $Log: eventlistener.h,v $ 00028 // Revision 1.1 2004/04/30 12:39:21 botik32 00029 // Numerous changes related to making the SceneChangedEvents 00030 // to work. 00031 // - Moved listen_event() from BaseSceneNode to EventListener class 00032 // - Made GroupNode listen to the added children's SceneChangedEvents 00033 // - Changed Camera to listen to layers' SceneChangedEvents 00034 // - Moved eventlistener list cleanup from Camera to EventHub class 00035 // where it belonged in the first place 00036 //
1.3.5