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/// \file electromagnetic/TestEm3/include/DetectorConstruction.hh
/// \brief Definition of the DetectorConstruction class
//
// $Id$
//
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#ifndef DetectorConstruction_h
#define DetectorConstruction_h 1

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

class G4Box;
class G4LogicalVolume;
class G4VPhysicalVolume;
class G4Material;
class G4UniformMagField;
class DetectorMessenger;

     const G4int MaxAbsor = 10;                        // 0 + 9  
     
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class DetectorConstruction : public G4VUserDetectorConstruction
{
public:
  
   DetectorConstruction();
  ~DetectorConstruction();

public:
  
  void SetNbOfAbsor     (G4int);      
  void SetAbsorMaterial (G4int,const G4String&);     
  void SetAbsorThickness(G4int,G4double);
          
  void SetWorldMaterial (const G4String&);
  void SetCalorSizeYZ   (G4double);          
  void SetNbOfLayers    (G4int);   

  void SetMagField   (G4double);
  
  virtual   
  G4VPhysicalVolume* Construct();

  void UpdateGeometry();
     
public:
  
  void PrintCalorParameters(); 
                    
  G4double GetWorldSizeX()           {return fWorldSizeX;}; 
  G4double GetWorldSizeYZ()          {return fWorldSizeYZ;};
     
  G4double GetCalorThickness()       {return fCalorThickness;}; 
  G4double GetCalorSizeYZ()          {return fCalorSizeYZ;};
      
  G4int GetNbOfLayers()              {return fNbOfLayers;}; 
     
  G4int       GetNbOfAbsor()             {return fNbOfAbsor;}; 
  G4Material* GetAbsorMaterial(G4int i)  {return fAbsorMaterial[i];};
  G4double    GetAbsorThickness(G4int i) {return fAbsorThickness[i];};      

  const G4VPhysicalVolume* GetphysiWorld()        {return fPhysiWorld;};
  const G4Material*        GetWorldMaterial()     {return fDefaultMaterial;};
  const G4VPhysicalVolume* GetAbsorber(G4int i)   {return fPhysiAbsor[i];};

private:

  G4int              fNbOfAbsor;
  G4Material*        fAbsorMaterial [MaxAbsor];
  G4double           fAbsorThickness[MaxAbsor];

  G4int              fNbOfLayers;
  G4double           fLayerThickness;

  G4double           fCalorSizeYZ;
  G4double           fCalorThickness;

  G4Material*        fDefaultMaterial;
  G4double           fWorldSizeYZ;
  G4double           fWorldSizeX;

  G4Box*             fSolidWorld;
  G4LogicalVolume*   fLogicWorld;
  G4VPhysicalVolume* fPhysiWorld;

  G4Box*             fSolidCalor;
  G4LogicalVolume*   fLogicCalor;
  G4VPhysicalVolume* fPhysiCalor;

  G4Box*             fSolidLayer;
  G4LogicalVolume*   fLogicLayer;
  G4VPhysicalVolume* fPhysiLayer;

  G4Box*             fSolidAbsor[MaxAbsor];
  G4LogicalVolume*   fLogicAbsor[MaxAbsor];
  G4VPhysicalVolume* fPhysiAbsor[MaxAbsor];

  G4UniformMagField* fMagField;

  DetectorMessenger* fDetectorMessenger;

private:

  void DefineMaterials();
  void ComputeCalorParameters();
  G4VPhysicalVolume* ConstructCalorimeter();
};

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#endif