00001 /* 00002 This file is part of geometria. 00003 00004 geometria is free software; you can redistribute it and/or modify 00005 it under the terms of the GNU General Public License as published 00006 by the Free Software Foundation; either version 2 of the License, 00007 or (at your option) any later version. 00008 00009 geometria is distributed in the hope that it will be useful, but 00010 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 00011 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 00012 License for more details. 00013 00014 You should have received a copy of the GNU General Public 00015 License along with geometria; if not, write to the Free Software 00016 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA 00017 00018 (c) Philipp Moritz, 2006 00019 */ 00020 00021 #ifndef SUBJECT_HPP 00022 #define SUBJECT_HPP 00023 00024 #include "observer.hpp" 00025 #include <list> 00026 #include <boost/shared_ptr.hpp> 00027 00030 class subject 00031 { 00032 protected: 00033 subject(); 00034 public: 00035 virtual ~subject(); 00036 00037 virtual void register_observer(observer* ob); 00038 virtual void unregister_observer(observer* ob); 00039 00040 virtual void notice_all_observers(); 00041 private: 00042 boost::shared_ptr<std::list<observer*> > m_observers; 00043 }; 00044 00045 #endif
1.4.6-NO