MCTruthUserAction.h

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/*
  Copyright (C) 2002-2018 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef ISF_Geant4Tools_MCTruthUserAction_H
#define ISF_Geant4Tools_MCTruthUserAction_H
 
 
 
#include <string>
 
#include "GaudiKernel/ServiceHandle.h"
#include "GaudiKernel/ToolHandle.h"
#include "AthenaBaseComps/AthAlgTool.h"
 
#include "ISF_Interfaces/ITruthSvc.h"
 
 
/*
  Comments:
  Existing implementation Simulation/G4Sim/MCTruth/MCTruth/MCTruthSteppingAction.h is a
  G4UserSteppingAction and registers itself to FADS::SteppingAction::SetMCTSteppingAction
 
  Notes:
 
  employs ISFTruthService
  needs to know the current geoID, may be obtained from iGeant4::TransportTool, or from current particle in IParticleBroker
  m_particleBroker->current()->passport().nextGeo()
  Thus it is defined as a AlgTool, to get these assigned easily via python.
*/
 
#include "G4UserTrackingAction.hh"
 
namespace G4UA{
  namespace iGeant4 {
    class MCTruthUserAction: public G4UserTrackingAction
    {
 
    public:
 
      struct Config
      {
        ServiceHandle<ISF::ITruthSvc> truthRecordSvc =
          ServiceHandle<ISF::ITruthSvc>("ISF_TruthRecordSvc", "MCTruthUserAction");
 
        int ilevel=2;
        unsigned int verboseLevel=0;
      };
 
      MCTruthUserAction(const Config& config);
      virtual void PreUserTrackingAction(const G4Track*) override;
      virtual void PostUserTrackingAction(const G4Track*) override;
    private:
      Config m_config;
      ISF::ITruthSvc* m_truthRecordSvcQuick; 
    }; // class MCTruthUserAction
 
  } // namespace iGeant4
 
} // namespace G4UA
 
 
#endif // ISF_Geant4Tools_MCTruthUserAction_H