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170 lines
4.3 KiB
C++
170 lines
4.3 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include "stdmisc.h"
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#include "nel/misc/event_server.h"
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#include "nel/misc/event_listener.h"
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#include "nel/misc/event_emitter.h"
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#include "nel/misc/events.h"
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#ifdef DEBUG_NEW
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#define new DEBUG_NEW
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#endif
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namespace NLMISC {
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/*------------------------------------------------------------------*\
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CEventServer()
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\*------------------------------------------------------------------*/
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CEventServer::CEventServer()
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{
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_Pumping= false;
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}
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CEventServer::~CEventServer()
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{
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std::list<CEvent*>::iterator itev = _Events.begin();
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while(itev!=_Events.end())
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{
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delete *itev;
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itev=_Events.erase (itev);
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}
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}
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/*------------------------------------------------------------------*\
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postEvent()
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\*------------------------------------------------------------------*/
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void CEventServer::postEvent(CEvent * event)
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{
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_Events.push_back(event);
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}
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/*------------------------------------------------------------------*\
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pump()
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\*------------------------------------------------------------------*/
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void CEventServer::pump(bool allWindows)
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{
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// Avoid recurse (can arise if the process of an event decide to pump the server again....)
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nlassert(!_Pumping);
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_Pumping= true;
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// **** submit emitters events
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std::list<IEventEmitter*>::iterator item = _Emitters.begin();
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// getting events from emitters
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while(item!=_Emitters.end())
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{
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// ask emitters to submit their events to server
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(*item)->submitEvents(*this, allWindows);
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item++;
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}
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// **** process to listeners
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std::list<CEvent*>::iterator itev = _Events.begin();
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while(itev!=_Events.end())
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{
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// pump event
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bool bDelete=pumpEvent(*itev);
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if (bDelete)
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delete *itev;
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itev=_Events.erase (itev);
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}
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// end of pumping
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_Pumping= false;
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}
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/*------------------------------------------------------------------*\
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pumpEvent()
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\*------------------------------------------------------------------*/
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bool CEventServer::pumpEvent(CEvent* event)
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{
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// taking id
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uint64 id = (uint64) *event;
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// looking for the first occurence of id
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mapListener::iterator it = _Listeners.find(id);
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// calling every callbacks
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while(it!=_Listeners.end() && (uint64)(*it).first == id)
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{
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IEventListener *a = (IEventListener *)((*it).second);
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a->process(*event);
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it++;
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}
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// delete the pointer
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return true;
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}
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/*------------------------------------------------------------------*\
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addListener()
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\*------------------------------------------------------------------*/
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void CEventServer::addListener(CClassId id, IEventListener* listener )
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{
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_Listeners.insert( mapListener::value_type(id, listener));
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}
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/*------------------------------------------------------------------*\
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removeListener()
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\*------------------------------------------------------------------*/
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void CEventServer::removeListener(CClassId id, IEventListener* listener )
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{
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// looking for the first occurence of id
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mapListener::iterator it = _Listeners.find(id);
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// looking for occurence with the right callback
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while(it!=_Listeners.end() && (*it).first == id)
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{
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if((*it).second==listener)
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{
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// erasing pair
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_Listeners.erase(it);
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return;
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}
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it++;
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}
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}
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/*------------------------------------------------------------------*\
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addEmitter()
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\*------------------------------------------------------------------*/
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void CEventServer::addEmitter(IEventEmitter * emitter)
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{
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_Emitters.push_back(emitter);
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}
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/*------------------------------------------------------------------*\
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removeEmitter()
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\*------------------------------------------------------------------*/
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void CEventServer::removeEmitter(IEventEmitter * emitter)
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{
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_Emitters.remove(emitter);
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}
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} // NLMISC
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