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- /*
- Minetest
- Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
- #ifndef EVENT_MANAGER_HEADER
- #define EVENT_MANAGER_HEADER
- #include "event.h"
- #include <list>
- #include <map>
- class EventManager: public MtEventManager
- {
- static void receiverReceive(MtEvent *e, void *data)
- {
- MtEventReceiver *r = (MtEventReceiver*)data;
- r->onEvent(e);
- }
- struct FuncSpec{
- event_receive_func f;
- void *d;
- FuncSpec(event_receive_func f, void *d):
- f(f), d(d)
- {}
- };
- struct Dest{
- std::list<FuncSpec> funcs;
- };
- std::map<std::string, Dest> m_dest;
- public:
- ~EventManager()
- {
- }
- void put(MtEvent *e)
- {
- std::map<std::string, Dest>::iterator i = m_dest.find(e->getType());
- if(i != m_dest.end()){
- std::list<FuncSpec> &funcs = i->second.funcs;
- for(std::list<FuncSpec>::iterator i = funcs.begin();
- i != funcs.end(); i++){
- (*(i->f))(e, i->d);
- }
- }
- delete e;
- }
- void reg(const char *type, event_receive_func f, void *data)
- {
- std::map<std::string, Dest>::iterator i = m_dest.find(type);
- if(i != m_dest.end()){
- i->second.funcs.push_back(FuncSpec(f, data));
- } else{
- std::list<FuncSpec> funcs;
- Dest dest;
- dest.funcs.push_back(FuncSpec(f, data));
- m_dest[type] = dest;
- }
- }
- void dereg(const char *type, event_receive_func f, void *data)
- {
- if(type != NULL){
- std::map<std::string, Dest>::iterator i = m_dest.find(type);
- if(i != m_dest.end()){
- std::list<FuncSpec> &funcs = i->second.funcs;
- std::list<FuncSpec>::iterator j = funcs.begin();
- while(j != funcs.end()){
- bool remove = (j->f == f && (!data || j->d == data));
- if(remove)
- funcs.erase(j++);
- else
- j++;
- }
- }
- } else{
- for(std::map<std::string, Dest>::iterator
- i = m_dest.begin(); i != m_dest.end(); i++){
- std::list<FuncSpec> &funcs = i->second.funcs;
- std::list<FuncSpec>::iterator j = funcs.begin();
- while(j != funcs.end()){
- bool remove = (j->f == f && (!data || j->d == data));
- if(remove)
- funcs.erase(j++);
- else
- j++;
- }
- }
- }
- }
- void reg(MtEventReceiver *r, const char *type)
- {
- reg(type, EventManager::receiverReceive, r);
- }
- void dereg(MtEventReceiver *r, const char *type)
- {
- dereg(type, EventManager::receiverReceive, r);
- }
- };
- #endif
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