Geant4VolumeManager.h

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//==========================================================================
//  AIDA Detector description implementation 
//--------------------------------------------------------------------------
// Copyright (C) Organisation europeenne pour la Recherche nucleaire (CERN)
// All rights reserved.
//
// For the licensing terms see $DD4hepINSTALL/LICENSE.
// For the list of contributors see $DD4hepINSTALL/doc/CREDITS.
//
// Author     : M.Frank
//
//==========================================================================
#ifndef DDG4_GEANT4VOLUMEMANAGER_H
#define DDG4_GEANT4VOLUMEMANAGER_H
 
// Framework include files
#include <DD4hep/Detector.h>
#include <DD4hep/IDDescriptor.h>
#include <DDG4/Geant4Primitives.h>
 
// Geant4 include files
#include <G4VTouchable.hh>
 
#include <utility>
#include <vector>
 
// Geant4 forward declarations
class G4VPhysicalVolume;
 
 
namespace dd4hep {
 
  namespace sim {
 
    // Forward declarations
    class Geant4VolumeManager;
    class Geant4GeometryInfo;
 
 
    class Geant4VolumeManager : public Handle<Geant4GeometryInfo>   {
    protected:
      bool checkValidity() const;
    protected:
      friend class Geant4Mapping;
      
      Geant4VolumeManager() = default;
      Geant4VolumeManager(const Handle<Geant4GeometryInfo>& e)
        : Handle<Geant4GeometryInfo>(e) {  }
      Geant4VolumeManager(const Geant4VolumeManager& e) = default;
      template <typename Q> Geant4VolumeManager(const Handle<Q>& e)
        : Handle<Geant4GeometryInfo>(e) {
      }
      Geant4VolumeManager& operator=(const Geant4VolumeManager& c) = default;
      
    public:
      constexpr static const VolumeID InvalidPath = VolumeID(-1LL);
      constexpr static const VolumeID Insensitive = VolumeID(-2LL);
      constexpr static const VolumeID NonExisting = 0ULL;
      enum debug_flags  {
        PRINT_LEVEL   = 1<<0,
        PRINT_ACTION  = 1<<1,
        PRINT_CHAIN   = 1<<2,
        PRINT_RESULT  = 1<<3,
        PRINT_NODES   = 1<<4,
        PRINT_VOLIDS  = 1<<5,
        PRINT_ENTRIES = 1<<6,
      };
      
    public:
      Geant4VolumeManager(const Detector& description, Geant4GeometryInfo* info, long debug);
 
      std::vector<const G4VPhysicalVolume*>
      placementPath(const G4VTouchable* touchable, bool exception = true) const;
      VolumeID volumeID(const G4VTouchable* touchable) const;
      void volumeDescriptor(const std::vector<const G4VPhysicalVolume*>& path,
                            std::pair<VolumeID,std::vector<std::pair<const BitFieldElement*, VolumeID> > >& volume_desc) const;
      void volumeDescriptor(const G4VTouchable* touchable,
                            std::pair<VolumeID,std::vector<std::pair<const BitFieldElement*, VolumeID> > >& volume_desc) const;
    };
  }    // End namespace sim
}      // End namespace dd4hep
#endif // DDG4_GEANT4VOLUMEMANAGER_H