// // Author: Lorenzo Bettini , (C) 2004-2008 // // Copyright: See COPYING file that comes with this distribution // #ifndef EVENTGENERATOR_H_ #define EVENTGENERATOR_H_ #include namespace srchilite { /** * A generic event generator, for listeners of type EventListener and events of * type EventType. EventListener must implement the method notify(const EventType &) */ template class EventGenerator { /// the list of listeners std::list listeners; public: void addListener(EventListener *listener) { listeners.push_back(listener); } void removeListener(EventListener *listener) { listeners.remove(listener); } bool hasListeners() const { return listeners.size(); } /** * Notifies all listeners of a specific event * @param event the event */ void notify(const EventType &event) { for (typename std::list::const_iterator it = listeners.begin(); it != listeners.end(); ++it) { (*it)->notify(event); } } }; } #endif /*EVENTGENERATOR_H_*/