mitkIGTTimeStamp.h

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/*============================================================================

The Medical Imaging Interaction Toolkit (MITK)

Copyright (c) German Cancer Research Center (DKFZ)
All rights reserved.

Use of this source code is governed by a 3-clause BSD license that can be
found in the LICENSE file.

============================================================================*/


#ifndef MITKTIMESTAMP_H_HEADER_INCLUDED_
#define MITKTIMESTAMP_H_HEADER_INCLUDED_

#include <itkObject.h>
#include <itkObjectFactory.h>
#include <MitkIGTExports.h>

#include "mitkRealTimeClock.h"


namespace mitk {

  class MITKIGT_EXPORT IGTTimeStamp : public itk::Object
  {
  public:

    mitkClassMacroItkParent(IGTTimeStamp, itk::Object);

    static IGTTimeStamp* CreateInstance();

    static IGTTimeStamp* GetInstance();

    void Start( itk::Object::Pointer device );

    void Stop( itk::Object::Pointer device );

    double GetElapsed();

    double GetElapsed(itk::Object::Pointer device);


    double GetOffset(itk::Object::Pointer Device);

    void SetRealTimeClock(mitk::RealTimeClock::Pointer Clock);

    void Initialize();

  protected:

    IGTTimeStamp();

    ~IGTTimeStamp() override;

    double GetCurrentStamp();

    /* the current timestamp when GetCurrentStamp() is called. */
    double m_Time;

    /* the timestamp in ms acquired when Start() was called. */
    double m_ReferenceTime;

    /* pointer to the RealTimeClock used internally */
    mitk::RealTimeClock::Pointer m_RealTimeClock;

    /* pointer to the current instance */
    static mitk::IGTTimeStamp::Pointer s_Instance;

    /* map, in which pointer to all devices calling Start(), are saved */
    std::map<itk::Object::Pointer, double> m_DeviceMap;

    std::map<itk::Object::Pointer, double>::iterator m_MapIterator;
  };
} // namespace mitk

#endif /* MITKTIMESTAMP_H_HEADER_INCLUDED_ */