TruthTrackSeederTool.h

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
#ifndef MUONTRACKFINDINGTOOLS_TRUTHTRACKSEEDERTOOL_H
#define MUONTRACKFINDINGTOOLS_TRUTHTRACKSEEDERTOOL_H
 
 
#include "GeoPrimitives/GeoPrimitives.h"
#include "MuonRecToolInterfacesR4/ITrackSeedingTool.h"
 
#include "AthenaBaseComps/AthAlgTool.h"
 
#include "xAODMuon/MuonSegmentContainer.h"
#include "StoreGate/ReadDecorHandleKey.h"
#include "StoreGate/ReadHandleKey.h"
#include "MuonReadoutGeometryR4/MuonDetectorManager.h"
#include  "ActsEvent/ContextUtility.h"
 
 
namespace MuonR4 {
class TruthTrackSeederTool: public extends<AthAlgTool, ITrackSeedingTool> {
        public:
            using base_class::base_class;
            virtual StatusCode initialize() override final;
            virtual StatusCode findTrackSeeds(const EventContext& ctx,
                                              std::vector<MsTrackSeed>& outSeeds) const override final;
            virtual Acts::Result<Acts::BoundTrackParameters> 
                                estimateStartParameters(const EventContext& ctx,
                                                        const MsTrackSeed& seed) const override final;
        private:
            SG::ReadHandleKey<xAOD::MuonSegmentContainer> m_segmentKey{this, "SegmentContainer", "MuonSegmentsFromR4" };
            SG::ReadDecorHandleKey<xAOD::MuonSegmentContainer> m_truthLinkKey{this, "TruthLinkKey", m_segmentKey, "truthParticleLink"};
            MuonGMR4::MuonDetectorManager* m_detMgr{nullptr};
            ActsTrk::ContextUtility m_ctxProvider{this};
    };
}
#endif