nevrax.org : docs

00001 
+00007 /* Copyright, 2000 Nevrax Ltd.
+00008  *
+00009  * This file is part of NEVRAX NEL.
+00010  * NEVRAX NEL is free software; you can redistribute it and/or modify
+00011  * it under the terms of the GNU General Public License as published by
+00012  * the Free Software Foundation; either version 2, or (at your option)
+00013  * any later version.
+00014 
+00015  * NEVRAX NEL is distributed in the hope that it will be useful, but
+00016  * WITHOUT ANY WARRANTY; without even the implied warranty of
+00017  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+00018  * General Public License for more details.
+00019 
+00020  * You should have received a copy of the GNU General Public License
+00021  * along with NEVRAX NEL; see the file COPYING. If not, write to the
+00022  * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+00023  * MA 02111-1307, USA.
+00024  */
+00025 
+00026 #ifndef NL_EVENT_LISTENER_H
+00027 #define NL_EVENT_LISTENER_H
+00028 
+00029 #include "nel/misc/types_nl.h"
+00030 #include "nel/misc/events.h"
+00031 #include "nel/misc/bit_set.h"
+00032 
+00033 
+00034 namespace NLMISC {
+00035 
+00036 class CEvent;
+00037 class CEventServer;
+00038 
+00045 class IEventListener
+00046 {
+00047 public:
+00048 
+00050         IEventListener();
+00051 
+00056         virtual void operator ()(const CEvent& event)=0;
+00057 };
+00058 
+00059 
+00066 class CEventListenerAsync: public IEventListener
+00067 {
+00068 public:
+00069 
+00071         CEventListenerAsync();
+00072         virtual ~CEventListenerAsync() {}
+00073 
+00077         void addToServer (CEventServer& server);
+00078 
+00082         void removeFromServer (CEventServer& server);
+00083 
+00088         bool isKeyDown(TKey key) const;
+00089 
+00097         bool isKeyPushed (TKey key, bool release=true);
+00098 
+00099 
+00109         void reset ();
+00110 
+00111 
+00112 protected:
+00113         /*
+00114          * Call back of the listener.
+00115          * \param event is the event send to the listener
+00116          */
+00117         virtual void operator ()(const CEvent& event);
+00118         CBitSet _KeyArray;
+00119         // Must have 2 arrays because of key repetition...
+00120         CBitSet _KeyDownArray, _KeyReleaseArray;
+00121 };
+00122 
+00123 
+00124 } // NLMISC
+00125 
+00126 
+00127 #endif // NL_EVENT_LISTENER_H
+00128 
+00129 /* End of event_listener.h */
+00130 
+