lgrTimeInterface.h

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/******************************************************************************
** Copyright (c) 1992-2010 VT MAK
** All rights reserved.
******************************************************************************/


#ifndef lgrTimeInterface_H_
#define lgrTimeInterface_H_

#include "lgrSystemInterface.h"

namespace MAKLogger
{
   class DtLgrTimeCommandFactory;

   class DT_DLL_LGRCORE DtLgrTimeInterface : public virtual DtLgrSystemInterface
   {
   public:
      typedef std::pair<DtAbsoluteTime,DtAbsoluteTime> TimePair;

      //Used to shorten code.
      typedef DtLgrTimeCommandFactory Factory;

      //Used to shorten code.
      typedef DtLgrTimeInterface ThisClass;

   protected:

      DtLgrTimeInterface(DtLogger& logger);

   public:
      virtual ~DtLgrTimeInterface();

      virtual const DtAbsoluteTime& currentTime() const;

      virtual const DtAbsoluteTime& startTime() const;

      virtual const DtAbsoluteTime& stopTime() const;

      virtual const DtAbsoluteTime& firstTime() const;

      virtual const DtAbsoluteTime& lastTime() const;

      virtual bool atStartTime() const;

      virtual bool atStopTime() const;

      void currentTimeChanged(DtResponse);
      void startStopTimesChanged(DtResponse);
      void firstLastTimesChanged(DtResponse);

      DtValueSignal<DtAbsoluteTime> currentTimeChangedSignal;
      DtValueSignal<TimePair> startStopTimesChangedSignal;
      DtValueSignal<DtAbsoluteTime> firstTimeChangedSignal;
      DtValueSignal<DtAbsoluteTime> lastTimeChangedSignal;

   protected:
      void connectResponse(DtLgrCommandId,
         void (DtLgrTimeInterface::*)(DtResponse));

   protected:
      DtAbsoluteTime myCurrentTime;
      DtAbsoluteTime myFirstTime;
      DtAbsoluteTime myLastTime;
      TimePair myStartStopTimes;
   };
}

#endif