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112 lines
2.8 KiB
C++
112 lines
2.8 KiB
C++
/*
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Minetest
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Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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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 Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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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 Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#pragma once
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#include "event.h"
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#include <list>
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#include <map>
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class EventManager: public MtEventManager
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{
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static void receiverReceive(MtEvent *e, void *data)
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{
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MtEventReceiver *r = (MtEventReceiver*)data;
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r->onEvent(e);
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}
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struct FuncSpec{
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event_receive_func f;
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void *d;
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FuncSpec(event_receive_func f, void *d):
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f(f), d(d)
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{}
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};
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struct Dest{
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std::list<FuncSpec> funcs;
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};
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std::map<std::string, Dest> m_dest;
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public:
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~EventManager()
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{
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}
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void put(MtEvent *e)
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{
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std::map<std::string, Dest>::iterator i = m_dest.find(e->getType());
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if(i != m_dest.end()){
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std::list<FuncSpec> &funcs = i->second.funcs;
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for(std::list<FuncSpec>::iterator i = funcs.begin();
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i != funcs.end(); ++i){
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(*(i->f))(e, i->d);
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}
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}
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delete e;
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}
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void reg(const char *type, event_receive_func f, void *data)
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{
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std::map<std::string, Dest>::iterator i = m_dest.find(type);
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if(i != m_dest.end()){
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i->second.funcs.push_back(FuncSpec(f, data));
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} else{
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std::list<FuncSpec> funcs;
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Dest dest;
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dest.funcs.push_back(FuncSpec(f, data));
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m_dest[type] = dest;
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}
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}
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void dereg(const char *type, event_receive_func f, void *data)
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{
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if(type != NULL){
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std::map<std::string, Dest>::iterator i = m_dest.find(type);
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if(i != m_dest.end()){
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std::list<FuncSpec> &funcs = i->second.funcs;
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std::list<FuncSpec>::iterator j = funcs.begin();
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while(j != funcs.end()){
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bool remove = (j->f == f && (!data || j->d == data));
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if(remove)
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funcs.erase(j++);
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else
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++j;
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}
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}
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} else{
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for(std::map<std::string, Dest>::iterator
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i = m_dest.begin(); i != m_dest.end(); ++i){
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std::list<FuncSpec> &funcs = i->second.funcs;
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std::list<FuncSpec>::iterator j = funcs.begin();
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while(j != funcs.end()){
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bool remove = (j->f == f && (!data || j->d == data));
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if(remove)
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funcs.erase(j++);
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else
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++j;
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}
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}
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}
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}
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void reg(MtEventReceiver *r, const char *type)
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{
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reg(type, EventManager::receiverReceive, r);
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}
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void dereg(MtEventReceiver *r, const char *type)
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{
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dereg(type, EventManager::receiverReceive, r);
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}
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};
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