ITRT_ToT_dEdx.h

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/*
  Copyright (C) 2002-2020 CERN for the benefit of the ATLAS collaboration
*/
 
 
#ifndef ITRT_TOT_DEDX_H
#define ITRT_TOT_DEDX_H
 
// Gaudi
#include "GaudiKernel/IAlgTool.h"
#include "GaudiKernel/EventContext.h"
#include "TrkParameters/TrackParameters.h"
#include <optional>
 
namespace Trk { class Track ; } 
namespace Trk { class TrackStateOnSurface ; } 
namespace InDet { class TRT_DriftCircleOnTrack ; }
 
static const InterfaceID IID_ITRT_ToT_dEdx("ITRT_ToT_dEdx", 1, 0);
  
class ITRT_ToT_dEdx : virtual public IAlgTool {
 
  
public:
  
  virtual ~ITRT_ToT_dEdx(){};
  
  static const InterfaceID& interfaceID() { return IID_ITRT_ToT_dEdx; };

  virtual double dEdx(
    const EventContext& ctx,
    const Trk::Track* track,
    bool useHitsHT,
    std::optional<float> localOccupancy = std::nullopt) const = 0;
 
  virtual double dEdx(const Trk::Track* track,
                      bool useHitsHT,
                      std::optional<float> localOccupancy = std::nullopt) const;

  virtual double usedHits(const EventContext& ctx,
                          const Trk::Track* track,
                          bool useHitsHT = true) const = 0;
 
  virtual double usedHits(const Trk::Track* track,
                          bool useHitsHT = true) const;
 

  virtual double getTest(const EventContext& ctx,
                         const double dEdx_obs,
                         const double pTrk,
                         Trk::ParticleHypothesis hypothesis,
                         Trk::ParticleHypothesis antihypothesis,
                         int nUsedHits) const = 0;
 
  virtual double getTest(const double dEdx_obs,
                         const double pTrk,
                         Trk::ParticleHypothesis hypothesis,
                         Trk::ParticleHypothesis antihypothesis,
                         int nUsedHits) const;
};
 
// implement the non ctx aware methods in terms of the ctx
// aware ones
inline double
ITRT_ToT_dEdx::dEdx(const Trk::Track* track,
                    bool useHitsHT,
                    std::optional<float> localOccupancy) const
{
  return dEdx(Gaudi::Hive::currentContext(), track, useHitsHT, localOccupancy);
}
 
inline double
ITRT_ToT_dEdx::usedHits(const Trk::Track* track, bool useHitsHT) const
{
  return usedHits(Gaudi::Hive::currentContext(), track, useHitsHT);
}
 
inline double
ITRT_ToT_dEdx::getTest(const double dEdx_obs,
                       const double pTrk,
                       Trk::ParticleHypothesis hypothesis,
                       Trk::ParticleHypothesis antihypothesis,
                       int nUsedHits) const
{
  return getTest(Gaudi::Hive::currentContext(),
                 dEdx_obs,
                 pTrk,
                 hypothesis,
                 antihypothesis,
                 nUsedHits);
}
 
#endif // ITRT_TOT_DEDX_H