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// $Id: DetectorConstruction.hh,v 1.3 2010/06/04 19:03:36 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-04-beta-01 $
//
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#ifndef DetectorConstruction_h
#define DetectorConstruction_h 1

#include "G4VUserDetectorConstruction.hh"
#include "globals.hh"
#include "G4ThreeVector.hh"

class G4LogicalVolume;
class G4Material;
class G4UniformMagField;
class DetectorMessenger;
class G4MonopoleFieldSetup;

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

  void SetSizeX    (G4double);
  void SetSizeYZ   (G4double);              
  void SetMaterial (G4String);            
  void SetMagField (G4double);
     
  void SetMaxStepSize   (G4double);
     
  G4VPhysicalVolume* Construct();
  void               UpdateGeometry();
     
  G4double     GetWorldSizeX()    {return worldSizeX;};
  G4double     GetWorldSizeYZ()   {return worldSizeYZ;};
  G4Material*  GetWorldMaterial() {return worldMaterial;};     
  G4double     GetAbsorSizeX()    {return absorSizeX;};
  G4double     GetAbsorSizeYZ()   {return absorSizeYZ;};
  G4double     GetMaxStepSize()   {return maxStepSize;};
  G4Material*  GetAbsorMaterial() {return absorMaterial;};
  
  void         PrintParameters();
                       
private:

  void               DefineMaterials();
  G4VPhysicalVolume* ConstructVolumes();     
  
  G4double            worldSizeX;
  G4double            worldSizeYZ;
  G4Material*         worldMaterial;           
  G4double            absorSizeX;
  G4double            absorSizeYZ;
  G4double	      maxStepSize;
  G4Material*         absorMaterial;

  G4UniformMagField*  magField;
  G4MonopoleFieldSetup* fMFieldSetup;

  G4LogicalVolume*    lAbsor;
               
  DetectorMessenger* detectorMessenger;

};

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#endif