/**
 * \file CbmLitTrackFitterImp.h
 * \author Andrey Lebedev <andrey.lebedev@gsi.de>
 * \date 2007
 * \brief Implementation of Kalman Filter track fit.
 **/

#ifndef CBMLITTRACKFITTERIMP_H_
#define CBMLITTRACKFITTERIMP_H_

#include "interface/CbmLitTrackFitter.h"
#include "base/CbmLitPtrTypes.h"

/**
 * \class CbmLitTrackFitterImp
 * \author Andrey Lebedev <andrey.lebedev@gsi.de>
 * \date 2007
 * \brief Implementation of Kalman Filter track fit.
 **/
class CbmLitTrackFitterImp : public CbmLitTrackFitter
{
public:
   /**
    * \brief Constructor.
    * \param[in] propagator Track propagation tool.
    * \param[in] update Track update tool.
    */
   CbmLitTrackFitterImp(
      TrackPropagatorPtr propagator,
      TrackUpdatePtr update);

   /**
    * \brief Destructor.
    */
   virtual ~CbmLitTrackFitterImp();

   /**
    * \brief Inherited from CbmLitTrackFitter.
    */
   virtual LitStatus Fit(
      CbmLitTrack* track,
      bool downstream = true);

private:
   TrackPropagatorPtr fPropagator; // Track propagation tool
   TrackUpdatePtr fUpdate; // Track update tool
};

#endif /*CBMLITTRACKFITTERIMP_H_*/