ITRT_SegmentToTrackTool.h

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/


 
#ifndef ITRT_SegmentToTrackTool_H
#define ITRT_SegmentToTrackTool_H
 
#include "GaudiKernel/IAlgTool.h"
 
#include "TrkTrack/Track.h"
#include "TrkSegment/TrackSegment.h"
#include "TrkTrack/TrackCollection.h"
#include "TrkEventPrimitives/TrackScore.h"
#include "GaudiKernel/EventContext.h"
#include <utility>
 
class MsgStream;
 
namespace Trk {
  class PRDtoTrackMap;
}
 
namespace InDet {
 
  static const InterfaceID IID_ITRT_SegmentToTrackTool("InDet::ITRT_SegmentToTrackTool", 1, 0);
 
  class ITRT_SegmentToTrackTool : virtual public IAlgTool {
 
  public:
 
    static const InterfaceID& interfaceID();
 
    virtual StatusCode initialize () = 0;
    virtual StatusCode finalize   () = 0;
 
    struct EventData {
       std::vector< std::pair<Trk::TrackScore, Trk::Track*> > m_trackScores;
       enum ECounter {knTrkScoreZero, 
                      knTrkSegUsed,   
                      knTRTTrk,       
                      kNCounter};
       std::array<int,kNCounter>  m_counter {};
    };
 
    virtual Trk::Track* segToTrack(const EventContext&, const Trk::TrackSegment&) const = 0;

    virtual bool segIsUsed(const Trk::TrackSegment&,
                           const Trk::PRDtoTrackMap *) const = 0;
 
    virtual bool toLower(const Trk::TrackSegment&) const = 0;

    virtual void addNewTrack(const EventContext&,
                             Trk::Track*,
                             ITRT_SegmentToTrackTool::EventData &event_data) const = 0;

    virtual TrackCollection* resolveTracks(const Trk::PRDtoTrackMap *,
                                           ITRT_SegmentToTrackTool::EventData &event_data) const = 0;

    // Print internal tool parameters and status
 
    virtual MsgStream&    dump(MsgStream&    out) const = 0;
    virtual std::ostream& dump(std::ostream& out) const = 0;
 
  };

  // Inline methods
 
  inline const InterfaceID& InDet::ITRT_SegmentToTrackTool::interfaceID(){
    return IID_ITRT_SegmentToTrackTool;
  }

  // Overload of << operator MsgStream
 
}
 
#endif //ITRT_SegmentToTrackTool_H