TrkExtrapolator.h

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/*
  Copyright (C) 2002-2022 CERN for the benefit of the ATLAS collaboration
*/

// TrkExtrapolator.h, (c) ATLAS Detector software
 
#ifndef ISF_TRACKINGTOOLS_TRKEXTRAPOLATOR_H
#define ISF_TRACKINGTOOLS_TRKEXTRAPOLATOR_H 1
 
// class header
#include "ISF_TrackingInterfaces/ITrkExtrapolator.h"
 
// STL includes
#include <string>
 
// FrameWork includes
#include "GaudiKernel/ToolHandle.h"
#include "AthenaBaseComps/AthAlgTool.h"
#include "CxxUtils/CachedPointer.h"
#include "CxxUtils/checker_macros.h"
 
// ISF includes
#include "ISF_Event/ISFParticle.h"
#include "TrkGeometry/TrackingGeometry.h"
 
namespace Trk {
  class IExtrapolator;
  class TrackingGeometry;
  class TrackingVolume;
  class PdgToParticleHypothesis;
}
 
namespace ISF {
 
   class ISFParticle;
 

  class TrkExtrapolator : public extends<AthAlgTool, ISF::ITrkExtrapolator> {
 
    public:
      TrkExtrapolator( const std::string& t, const std::string& n, const IInterface* p );

      ~TrkExtrapolator();

      virtual StatusCode  initialize() override;
      virtual StatusCode  finalize() override;

      virtual ISF::ISFParticle* extrapolate( const ISF::ISFParticle &particle ) const override;
 
    private:

      SG::ReadCondHandleKey<Trk::TrackingGeometry>      m_trackingGeometryReadKey{this, "TrackingGeometryReadKey", "AtlasTrackingGeometry", "Key of input TrackingGeometry"};  

      ToolHandle<Trk::IExtrapolator>       m_extrapolator;              
 
      std::string                               m_trackingVolumeName;   
      mutable CxxUtils::CachedPointer<const Trk::TrackingVolume> m_trackingVolume ATLAS_THREAD_SAFE;       
 
      Trk::PdgToParticleHypothesis*             m_pdgToParticleHypothesis; 
 
 
  };
 
}
 
 
#endif //> !ISF_TRACKINGTOOLS_TRKEXTRAPOLATOR_H