ITrackParticleCreatorTool.h

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

// ITrackParticleCreatorTool.h, (c) ATLAS Detector software
#ifndef ITRKTRACKPARTICLECREATORTOOL_H
#define ITRKTRACKPARTICLECREATORTOOL_H
 
#include "AthLinks/ElementLink.h"
#include "GaudiKernel/EventContext.h"
#include "GaudiKernel/IAlgTool.h"
#include "TrkParticleBase/TrackParticleBase.h" // to know TrackParticleOrigin enum
#include "TrkTrack/TrackCollection.h"
 
#include "xAODTracking/TrackParticle.h"
#include "xAODTracking/TrackParticleContainer.h"
#include "xAODTracking/TrackingPrimitives.h"
#include "xAODTracking/VertexFwd.h"
namespace Rec {
class TrackParticle;
}
 
namespace InDet {
class BeamSpotData;
}
 
namespace Trk {
class Track;
class VxCandidate;

class ITrackParticleCreatorTool : virtual public IAlgTool
{
 
public:
  DeclareInterfaceID(ITrackParticleCreatorTool, 1, 0);
 

  virtual xAOD::TrackParticle* createParticle(
    const EventContext& ctx,
    const Rec::TrackParticle& trackParticle,
    xAOD::TrackParticleContainer* container = nullptr) const = 0;

  virtual xAOD::TrackParticle* createParticle(
    const EventContext& ctx,
    const Trk::Track& track,
    xAOD::TrackParticleContainer* container = nullptr,
    const xAOD::Vertex* vxCandidate = nullptr,
    xAOD::ParticleHypothesis prtOrigin = xAOD::noHypothesis) const = 0;

  virtual xAOD::TrackParticle* createParticle(
    const EventContext& ctx,
    const ElementLink<TrackCollection>& trackLink,
    xAOD::TrackParticleContainer* container = nullptr,
    const xAOD::Vertex* vxCandidate = nullptr,
    xAOD::ParticleHypothesis prtOrigin = xAOD::noHypothesis) const = 0;

  virtual xAOD::TrackParticle* createParticle(
    const EventContext& ctx,
    const Perigee* perigee,
    const FitQuality* fq,
    const TrackInfo* trackInfo,
    const TrackSummary* summary,
    const std::vector<const Trk::TrackParameters*>& parameters,
    const std::vector<xAOD::ParameterPosition>& positions,
    xAOD::ParticleHypothesis prtOrigin = xAOD::noHypothesis,
    xAOD::TrackParticleContainer* container = nullptr) const = 0;

  virtual const InDet::BeamSpotData* CacheBeamSpotData(
    const EventContext& ctx) const = 0;
};
 
} // end of namespace
 
#endif