ExtManager.h

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
 
// It is the main interface for the user to define the setup and
// start the propagation. Initializes GEANT4 for the propagation.
 
#pragma once
 
#include <globals.hh>
#include <G4ApplicationState.hh>
#include <G4ErrorPropagator.hh>
 
class G4ErrorTarget;
class G4ErrorTrajState;
class G4RunManager;
class G4VUserDetectorConstruction;
class G4VPhysicalVolume;
class G4VUserPhysicsList;
class G4UserRunAction;
class G4UserEventAction;
class G4UserStackingAction;
class G4UserTrackingAction;
class G4UserSteppingAction;
class G4MagneticField;
class G4MagIntegratorStepper;
class G4EquationOfMotion;
class G4ChordFinder;
class G4Mag_UsualEqRhs;
class G4VisManager;
class G4Track;
class G4VExceptionHandler;
 
namespace Belle2 {
 
  namespace Simulation {

    class ExtManager {
 
    public:

      ~ExtManager();

      static ExtManager* GetManager();

      void EventTermination(G4ErrorMode);

      void RunTermination();

      void Initialize(const char [], const std::string&, double, double, bool, int, const std::vector<std::string>&);

      void InitTrackPropagation(G4ErrorMode);

      G4int PropagateOneStep(G4ErrorTrajState* currentTS, G4ErrorMode mode = G4ErrorMode_PropForwards);

      inline G4ErrorPropagator* GetPropagator() const { return m_Propagator; }
 
    private:

      ExtManager();

      ExtManager(ExtManager&) = delete;

      ExtManager& operator=(ExtManager&) = delete;
 
    private:

      static ExtManager* m_Manager;

      G4ApplicationState m_G4State;

      G4ErrorPropagator* m_Propagator;

      G4RunManager* m_G4RunMgr;

      G4UserTrackingAction* m_TrackingAction;

      G4UserSteppingAction* m_SteppingAction;

      G4VExceptionHandler* m_StepExceptionHandler;

      G4MagneticField* m_MagneticField;

      G4MagneticField* m_UncachedField;

      G4Mag_UsualEqRhs* m_MagFldEquation;

      G4MagIntegratorStepper* m_Stepper;

      G4ChordFinder* m_ChordFinder;

      G4MagIntegratorStepper* m_StdStepper;

      G4EquationOfMotion* m_ForwardEquationOfMotion;

      G4EquationOfMotion* m_BackwardEquationOfMotion;

      G4VisManager* m_VisManager;
 
    };
 
  } // end of namespace Simulation

} // end of namespace Belle2