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// -------------------------------------------------------------------
//
// GEANT4 Class file
//
//
// File name:  G4VhShellCrossSection
//
// Author:      S. Dussoni and A. Mantero (Alfonso.Mantero@ge.infn.it)
// 
// History:
// -----------
// 23 Oct 2001 A. Mantero   1st implementation
// 24 Oct 2001 MGP          Cleaned up
// 29 Oct 2001 VI           Add delta energy
// 15 Mar 2011 ALF          Introduced the usage of G4AtomicShellEnumerator
// 09 Mar 2012 LP           Added const G4Material* to the signature of virtual 
//                          methods.
//
// -------------------------------------------------------------------

// Class Description: 
//
// Abstract class for models of shell cross sections in proton ionisation
// -------------------------------------------------------------------
//

#ifndef G4VHSHELLCROSSSECTION_HH
#define G4VHSHELLCROSSSECTION_HH 1

#include "globals.hh"
#include <vector>
#include "G4AtomicShellEnumerator.hh"
#include "G4Material.hh"


class G4VhShellCrossSection 
{

public:

  G4VhShellCrossSection(const G4String& xname = "");

  virtual ~G4VhShellCrossSection();

  G4int SelectRandomShell(G4int Z, 
                          G4double incidentEnergy,
			  G4double mass, 
			  G4double deltaEnergy,
			  const G4Material* mat);

  virtual std::vector<G4double> GetCrossSection(G4int Z,
						G4double incidentEnergy,
						G4double mass,
						G4double deltaEnergy,
						const G4Material* mat) = 0;


  virtual G4double CrossSection(G4int Z,
                                G4AtomicShellEnumerator shell,
				G4double incidentEnergy,
				G4double mass,
				const G4Material* mat) =0;

  //protected:

  virtual std::vector<G4double> Probabilities(G4int Z,
					      G4double incidentEnergy,
					      G4double mass,
					      G4double deltaEnergy,
					      const G4Material* mat) = 0;


  virtual void SetTotalCS(G4double);

  inline const G4String& GetName() const; 

private:

  // Hide copy constructor and assignment operator 
  G4VhShellCrossSection(const  G4VhShellCrossSection&);
  G4VhShellCrossSection & operator=(const  G4VhShellCrossSection &right);

  G4String name;

};

inline const G4String& G4VhShellCrossSection::GetName() const
{
  return name;
} 

#endif

