MuonSensitiveDetector.h

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/*
  Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
*/
#ifndef MUONSENSITIVEDETECTORSR4_MUONSENSITIVEDETECTOR_H
#define MUONSENSITIVEDETECTORSR4_MUONSENSITIVEDETECTOR_H
 
#include <GeoPrimitives/GeoPrimitives.h>
 
#include <StoreGate/WriteHandle.h>
#include <MuonReadoutGeometryR4/MuonDetectorManager.h>
#include <xAODMuonSimHit/MuonSimHitContainer.h>
#include <AthenaBaseComps/AthMessaging.h>
 
#include <G4VSensitiveDetector.hh>
 
namespace MuonG4R4 {
    class MuonSensitiveDetector : public G4VSensitiveDetector, public AthMessaging {
        public:
            MuonSensitiveDetector(const std::string& name, 
                                  const std::string& output_key,
                                  const std::string& trf_storeKey,
                                  const MuonGMR4::MuonDetectorManager* detMgr);
         
            ~MuonSensitiveDetector() = default;
 
            virtual void Initialize(G4HCofThisEvent* HCE) override final;
 
        private:
            /* For the moment use write handles because the sensitive detectors are 
             *  managed by a service which must not have a data dependency */
            SG::WriteHandle<xAOD::MuonSimHitContainer> m_writeHandle;
            SG::ReadHandleKey<ActsTrk::DetectorAlignStore> m_trfCacheKey;
        protected:
            bool processStep(const G4Step* step) const;
            ActsTrk::GeometryContext getGeoContext() const;
            
            
            xAOD::MuonSimHit* lastSnapShot(const Identifier& gasGapId,
                                           const G4Step* hitStep);
 
 
            xAOD::MuonSimHit* propagateAndSaveStrip(const Identifier& hitId,
                                                    const Amg::Transform3D& toGasGap,
                                                    const G4Step* hitStep);
            xAOD::MuonSimHit* saveHit(const Identifier& hitId,
                                      const Amg::Vector3D& hitPos,
                                      const Amg::Vector3D& hitDir,
                                      const double globTime,
                                      const G4Step* hitStep);
 
            const MuonGMR4::MuonDetectorManager* m_detMgr{nullptr};
 
            
    };
}
 
#endif