ITRT_TrackExtensionTool.h

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/*
  Copyright (C) 2002-2021 CERN for the benefit of the ATLAS collaboration
*/

//  Header file for class ITRT_TrackExtensionTool
// (c) ATLAS Detector software
//  Base class for track extension to TRT
// Version 1.0 22/08/2005 I.Gavrilenko
 
#ifndef ITRT_TrackExtensionTool_H
#define ITRT_TrackExtensionTool_H
 
#include "TrkParameters/TrackParameters.h" //typedef, cannot fwd declare
#include "GaudiKernel/IAlgTool.h"
#include "TRT_ReadoutGeometry/TRT_DetElementLink_xk.h"
#include <vector>
#include <memory> //for unique_ptr
 
class MsgStream;
class EventContext;
namespace Trk{
  class Track;
  class TrackSegment;
  class MeasurementBase; //only the ptr is template parameter
}
 
namespace InDet {
  static const InterfaceID IID_ITRT_TrackExtensionTool
    ("InDet::ITRT_TrackExtensionTool",1,0);
 
  class ITRT_TrackExtensionTool : virtual public IAlgTool 
    {
      // Public methods:
      
    public:
      class IEventData {
      public:
         virtual ~IEventData() {}
      };

      // Standard tool methods
 
      static const InterfaceID& interfaceID();

      // Main methods for track extension to TRT

      // Pixels and sct track extension to TRT
 
      virtual std::vector<const Trk::MeasurementBase*>& extendTrack
        (const EventContext& ctx,
         const Trk::Track&,
         InDet::ITRT_TrackExtensionTool::IEventData &virt_event_data,
         InDet::TRT_DetElementLink_xk::TRT_DetElemUsedMap& used) const = 0;
 
      virtual std::vector<const Trk::MeasurementBase*>& extendTrack
        (const EventContext& ctx,
         const Trk::TrackParameters * pTrackParams,
         InDet::ITRT_TrackExtensionTool::IEventData &virt_event_data,
         InDet::TRT_DetElementLink_xk::TRT_DetElemUsedMap& used) const = 0;
 
      virtual Trk::Track* newTrack
        (const EventContext& ctx,
         const Trk::Track&,
         InDet::ITRT_TrackExtensionTool::IEventData &virt_event_data,
         InDet::TRT_DetElementLink_xk::TRT_DetElemUsedMap& used) const = 0;

      // TRT seed extension to TRT
 
      virtual Trk::TrackSegment* findSegment
        (const EventContext& ctx,
         const Trk::TrackParameters *,
         InDet::ITRT_TrackExtensionTool::IEventData &virt_event_data,
         InDet::TRT_DetElementLink_xk::TRT_DetElemUsedMap& used) const = 0;

      //  Tool initialisation  for new event
 
      virtual std::unique_ptr<InDet::ITRT_TrackExtensionTool::IEventData> newEvent(const EventContext& ctx) const = 0;

      // Print internal tool parameters and status
     
      virtual MsgStream&    dump(MsgStream&    out) const=0;
      virtual std::ostream& dump(std::ostream& out) const=0;
     
    };
  
  // Overload of << operator for MsgStream and  std::ostream
  
  MsgStream&    operator << (MsgStream&   ,const ITRT_TrackExtensionTool&);
  std::ostream& operator << (std::ostream&,const ITRT_TrackExtensionTool&);
  
  // Inline methods
 
  inline const InterfaceID& ITRT_TrackExtensionTool::interfaceID()
    {
      return IID_ITRT_TrackExtensionTool;
    }

  // Overload of << operator MsgStream
   
  inline MsgStream& operator    << 
    (MsgStream& sl,const ITRT_TrackExtensionTool& se)
    { 
      return se.dump(sl); 
    }

  // Overload of << operator std::ostream
  
  inline std::ostream& operator << 
    (std::ostream& sl,const ITRT_TrackExtensionTool& se)
    { 
      return se.dump(sl); 
    }   
 
} // end of name space
 
 
#endif // ITRT_TrackExtensionTool_H