nevrax.org : docs

00001 
+00007 /* Copyright, 2000-2002 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 #include "stdmisc.h"
+00027 #include "nel/misc/event_emitter_multi.h"
+00028 
+00029 
+00030 namespace NLMISC 
+00031 {
+00032 
+00033 // a predicate to find an emitter in a list
+00034 struct EmitterEqualPred
+00035 {
+00036         EmitterEqualPred(IEventEmitter *e) : E(e) {}
+00037         IEventEmitter *E;
+00038         bool operator()(const std::pair<IEventEmitter *, bool> &el)
+00039         {
+00040                 return el.first == E;
+00041         }
+00042 };
+00043 
+00045 CEventEmitterMulti::~CEventEmitterMulti()
+00046 {
+00047         for (TEmitterCont::iterator it = _Emitters.begin(); it != _Emitters.end(); ++it)
+00048         {
+00049                 if (it->second) // asked "must Delete' ?
+00050                 {
+00051                         delete it->first;
+00052                 }
+00053         }
+00054 }
+00055 
+00057 void    CEventEmitterMulti::addEmitter(IEventEmitter *e, bool mustDelete)
+00058 {
+00059         nlassert(e != this); // avoid infinite recursion
+00060         nlassert(!isEmitter(e));
+00061         _Emitters.push_back(std::make_pair(e, mustDelete));
+00062 }
+00063 
+00065 void    CEventEmitterMulti::removeEmitter(IEventEmitter *e)
+00066 {
+00067         TEmitterCont::iterator it = std::find_if(_Emitters.begin(), _Emitters.end(), EmitterEqualPred(e));
+00068         nlassert(it!= _Emitters.end());
+00069         if (it->second)
+00070         {
+00071                 delete it->first;
+00072         }
+00073         _Emitters.erase(it);
+00074 }
+00075 
+00077 bool    CEventEmitterMulti::isEmitter(IEventEmitter *e) const
+00078 {
+00079         TEmitterCont::const_iterator it = std::find_if(_Emitters.begin(), _Emitters.end(), EmitterEqualPred(e));
+00080         return it != _Emitters.end();
+00081 }
+00082 
+00084 void CEventEmitterMulti::submitEvents(CEventServer &server)
+00085 {
+00086         for (TEmitterCont::iterator it = _Emitters.begin(); it != _Emitters.end(); ++it)
+00087         {
+00088                 it->first->submitEvents(server);
+00089         }
+00090 }
+00092 IEventEmitter *CEventEmitterMulti::getEmitter(uint index)
+00093 {
+00094         nlassert(index < _Emitters.size());
+00095         return _Emitters[index].first;
+00096 }
+00097 
+00098 
+00099         
+00100 
+00101 
+00102 } // NLMISC
+
event_emitter_multi.cpp
