Events_Loop.h

// Copyright (C) 2014-2023  CEA, EDF
//
// This library 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 library 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 library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
 
#ifndef Events_Loop_H_
#define Events_Loop_H_
 
#include <Events_Message.h>
#include <Events_Listener.h>
 
#include <map>
#include <set>
#include <list>
 
class Events_MessageGroup;
 
class Events_Loop
{
  std::map<char*, std::map<void*, std::list<Events_Listener*> > > myListeners;
 
  std::map<char*, Events_Listener*> myImmediateListeners;
 
  std::map<char*, std::shared_ptr<Events_Message> > myGroups;
 
  std::set<char*> myFlushed;
 
  bool myFlushActive;
 
  Events_Loop() : myFlushActive(true) {}
 
 public:
  EVENTS_EXPORT static Events_Loop* loop();
  EVENTS_EXPORT static Events_ID eventByName(const char* theName);
 
  EVENTS_EXPORT void send(const std::shared_ptr<Events_Message>& theMessage, bool isGroup = true);
 
  EVENTS_EXPORT void registerListener(Events_Listener* theListener, const Events_ID theID,
    void* theSender = 0, bool theImmediate = false);
 
  EVENTS_EXPORT void removeListener(Events_Listener* theListener);
 
  EVENTS_EXPORT void flush(const Events_ID& theID);
 
  EVENTS_EXPORT void eraseMessages(const Events_ID& theID);
 
  EVENTS_EXPORT bool activateFlushes(const bool theActivate);
 
  EVENTS_EXPORT void clear(const Events_ID& theID);
 
  EVENTS_EXPORT bool isFlushed(const Events_ID& theID);
  EVENTS_EXPORT void setFlushed(const Events_ID& theID, const bool theValue);
 
  EVENTS_EXPORT bool hasGrouppedEvent(const Events_ID& theID);
 
private:
  void sendProcessEvent(const std::shared_ptr<Events_Message>& theMessage,
    std::list<Events_Listener*>& theListeners, const bool theFlushedNow);
 
};
 
#endif