G4AtlasDetectorConstructionTool.h

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/*
  Copyright (C) 2002-2021 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef G4AtlasDetectorConstructionTool_H
#define G4AtlasDetectorConstructionTool_H
 
// Include files
// Gaudi headers
#include "GaudiKernel/ToolHandle.h" // For tool handle array
// Athena headers
#include "AthenaBaseComps/AthAlgTool.h"
#include "AthenaBaseComps/AthMessaging.h"
#include "G4AtlasInterfaces/IDetectorConstructionTool.h"
#include "G4AtlasInterfaces/IDetectorGeometryTool.h"
#include "G4AtlasInterfaces/IRegionCreator.h"
#include "G4AtlasInterfaces/IParallelWorldTool.h"
#include "G4AtlasInterfaces/IFastSimulationMasterTool.h"
#include "G4AtlasInterfaces/IFieldManagerTool.h"
#include "G4AtlasInterfaces/IG4GeometryConfigurationTool.h"
#include "G4AtlasInterfaces/ISensitiveDetectorMasterTool.h"
#include "G4AtlasInterfaces/IG4CaloTransportTool.h"
 
// Geant4 headers
#include "G4VUserDetectorConstruction.hh"
#include "G4VPhysicalVolume.hh"

class G4AtlasDetectorConstructionTool final : public extends<AthAlgTool, IDetectorConstructionTool> {
 
 public:
  class G4AtlasDetectorConstruction : public G4VUserDetectorConstruction,
                                      public AthMessaging {
   public:
    G4AtlasDetectorConstruction(
        G4AtlasDetectorConstructionTool* detConstructionTool)
        : AthMessaging("G4AtlasDetectorConstruction"),
          m_detConstructionTool(detConstructionTool) {}
 
    virtual G4VPhysicalVolume* Construct() override final;
    virtual void ConstructSDandField() override final;
 
   private:
    G4AtlasDetectorConstructionTool* m_detConstructionTool{
        nullptr};  // Pointer to the G4 Atlas detector construction tool
  };

  G4AtlasDetectorConstructionTool( const std::string& type , const std::string& name,
                                   const IInterface* parent ) ;

  ~G4AtlasDetectorConstructionTool( ) = default;

  virtual StatusCode initialize( ) override final;

  virtual UPDetectorConstruction GetDetectorConstruction() override final;
  virtual std::vector<std::string>& GetParallelWorldNames() override final; // Called by DetectorGeometrySvc
 
 private:
  ToolHandle<IDetectorGeometryTool> m_detTool{this, "World", "", "Tool handle of the top-of-the-tree detector geometry tool"};
  ToolHandleArray<IRegionCreator> m_regionCreators{this, "RegionCreators", {}, "Tools to define G4 physics regions"};
  ToolHandleArray<IParallelWorldTool> m_parallelWorlds{this, "ParallelWorlds", {} , "Tools to define G4 parallel worlds"};
  ToolHandleArray<IG4GeometryConfigurationTool> m_configurationTools{this, "GeometryConfigurationTools", {}, "Tools for geometry configuration"};
  PublicToolHandle<ISensitiveDetectorMasterTool> m_senDetTool{this, "SenDetMasterTool", "SensitiveDetectorMasterTool", ""};
  PublicToolHandle<IFastSimulationMasterTool> m_fastSimTool{this, "FastSimMasterTool", "FastSimulationMasterTool", ""};
  ToolHandleArray<IFieldManagerTool> m_fieldManagers{this, "FieldManagers", {}, "field managers used"};
  PublicToolHandle<IG4CaloTransportTool> m_G4CaloTransportTool{this, "G4CaloTransportTool", "", "Tool handle of the Geant4 transport tool for the FastCaloSim in Geant4 implementation"};
  Gaudi::Property<bool> m_activateParallelWorlds{this, "ActivateParallelWorlds", false, "Toggle on/off the G4 parallel geometry system"};
  std::vector<std::string> m_parallelWorldNames{};
 
};
 
#endif