include/vrvCore/DtDataBankSignaler.h

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/******************************************************************************
** Copyright (c) 2009 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/
/******************************************************************************
** $RCSfile: DtSimEntryUpdaterSignaler.h,v $ $Revision: 1.9 $ $State: Exp $
******************************************************************************/


#pragma once
#include <vrvCore/vrvCore.h>
#include <vrvUtil/DtVirtualBaseClass.h>
#include <vrvCore/DtSimEntryUpdater.h>
#include <vrvCore/DtElementAttribute.h>
#include <vrvUtil/event_signal.h>

#include <vlutil/vlSmartPointers.h>

namespace makVrv
{
   class DtSharedSettingsManager;
   class DtEventQueueInterface;

   class DT_DLL_VRVCORE DtDataBankSignaler : public DtVirtualBaseClass
   {
   public:
      static DtDataBankSignaler& instance(const DtSharedSettingsManager&);

      static DtDataBankSignaler& instance(DtEventQueueInterface&);

      static DtDataBankSignaler* findInstance(DtEventQueueInterface*);

      virtual ~DtDataBankSignaler();

      //Signal emitted when changing an element attribute has been requested.
      event_signal< void(DtUniqueID, DtUniqueID, 
         DtBoost::shared_ptr<const DtElementAttribute>)>
         signal_elementAttributeChangeRequested;

      //Signal to emit when a sim entry update rate has changed.
      event_signal< void(DtUniqueID, DtSimEntryUpdater::UpdateRate)> 
         signal_simEntryUpdateRateChanged;

      //Signal to emit when a force sim entry update has been requested.
      event_signal< void(DtUniqueID)> signal_forceSimEntryUpdate;

   protected:
      DtDataBankSignaler(DtEventQueueInterface& eqi);

   private:
      DtDataBankSignaler(const DtDataBankSignaler&);
      DtDataBankSignaler& operator=(const DtDataBankSignaler&);

   };
}