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//
// This example is provided by the Geant4-DNA collaboration
// Any report or published results obtained using the Geant4-DNA software
// shall cite the following Geant4-DNA collaboration publication:
// Med. Phys. 37 (2010) 4692-4708
// Delage et al. PDB4DNA: implementation of DNA geometry from the Protein Data
//                  Bank (PDB) description for Geant4-DNA Monte-Carlo
//                  simulations (submitted to Comput. Phys. Commun.)
// The Geant4-DNA web site is available at http://geant4-dna.org
// 
// --------------------------------------------------------------
// Authors: E. Delage
// november 2013
// --------------------------------------------------------------
//
// $Id$
//
/// \file DetectorConstruction.hh
/// \brief Definition of the DetectorConstruction class

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#ifndef DetectorConstruction_h
#define DetectorConstruction_h 1

#include "G4Material.hh"
#include "G4VUserDetectorConstruction.hh"
#include "globals.hh"

class DetectorMessenger;
class G4LogicalVolume;
class G4VPhysicalVolume;

#include "PDBlib.hh"

/// Detector construction class to define materials and geometry.

class DetectorConstruction : public G4VUserDetectorConstruction
{
public:
  DetectorConstruction();
  virtual ~DetectorConstruction();

  virtual G4VPhysicalVolume* Construct();

private:
  //! PDB filename
  G4String fPdbFileName;

  //! Option for the visualisation
  unsigned short int fChosenOption;

  //! Check if PDB file loaded
  unsigned short int fPdbFileStatus;

  PDBlib fPDBlib;
  Molecule *fpMoleculeList;
  Barycenter *fpBarycenterList;
  G4Material *fpDefaultMaterial;
  G4Material *fpWaterMaterial;

  void   ConstructMaterials();
  void   CheckMaterials();
  G4VPhysicalVolume* ConstructWorld();
  G4VPhysicalVolume* DefineVolumes(G4String filename,unsigned short int option);

  void AtomisticView(G4LogicalVolume*,Molecule *,double atomSizeFactor);
  void BarycenterView(G4LogicalVolume* ,Barycenter *);
  void ResiduesView(G4LogicalVolume* ,Barycenter *);
  void DrawBoundingVolume(G4LogicalVolume* ,Molecule *);

  DetectorMessenger* fpMessenger; // messenger

  G4bool  fCheckOverlaps; // option to activate checking of volumes overlaps

public:
  //accessed by steppingAction.cc :
  Barycenter *GetBarycenterList();
  PDBlib GetPDBlib();
  Molecule *GetMoleculeList();

  //accessed by DetectorConstruction.cc :
  void LoadPDBfile(G4String fileName);
  void DrawAtoms_();
  void DrawNucleotides_();
  void DrawResidues_();
  void BuildBoundingVolume();
  void DrawAtomsWithBounding_();
  void DrawNucleotidesWithBounding_();
  void DrawResiduesWithBounding_();
};

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#endif

