DtDisplayEngineConnectionSignaler.h

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/******************************************************************************
** Copyright (c) 2021 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vrvCore/vrvCore.h>
#include <vrvCore/DtSharedModelSetSettings.h>

#include <vrvUtil/DtVirtualBaseClass.h>
#include <vrvUtil/event_signal.h>


namespace makVrv
{
   class DtEventQueueInterface;
   class DtSharedSettingsManager;

   class DT_DLL_VRVCORE DtDisplayEngineConnectionSignaler : 
      public DtVirtualBaseClass
   {

   public:
      virtual ~DtDisplayEngineConnectionSignaler();

      DtDisplayEngineConnectionSignaler() = delete;

      DtDisplayEngineConnectionSignaler(const DtDisplayEngineConnectionSignaler&) = delete;

      DtDisplayEngineConnectionSignaler& operator=(const DtDisplayEngineConnectionSignaler&) = delete;

   protected:
      DtDisplayEngineConnectionSignaler(DtEventQueueInterface& eqi);

   public:

      static DtDisplayEngineConnectionSignaler& instance(const DtSharedSettingsManager&);

      static DtDisplayEngineConnectionSignaler& instance(DtEventQueueInterface&);

      static DtDisplayEngineConnectionSignaler* findInstance(
         DtEventQueueInterface*);

   public:
      event_signal< void() > signal_frameStart;
   
   };
}