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// $Id: G4EMDataSet.hh,v 1.4 2003/05/20 20:03:34 pia Exp $
// GEANT4 tag $Name: geant4-05-02-patch-01 $
//
// Author: Maria Grazia Pia (Maria.Grazia.Pia@cern.ch)
//
// History:
// -----------
// 31 Jul 2001   MGP        Created
//
// -------------------------------------------------------------------

// Class description:
// Low Energy Electromagnetic Physics
// Data set for an electromagnetic physics process
// A strategy pattern is used to encapsulate algorithms for data interpolation
// Further documentation available from http://www.ge.infn.it/geant4/lowE

// -------------------------------------------------------------------

#ifndef G4EMDATASET_HH
#define G4EMDATASET_HH 1

#include "globals.hh"
#include "G4DataVector.hh"
#include "G4VEMDataSet.hh"

class G4VDataSetAlgorithm;

class G4EMDataSet : public G4VEMDataSet {
 
public:

  G4EMDataSet(G4int Z, 
	      G4DataVector* points, 
	      G4DataVector* values,
	      const G4VDataSetAlgorithm* interpolation,
	      G4double unitE = MeV, G4double unitData = barn);

  G4EMDataSet(G4int Z, 
	      const G4String& dataFile,
	      const G4VDataSetAlgorithm* interpolation,
	      G4double unitE = MeV, G4double unitData = barn);

  ~G4EMDataSet();
 
  G4double FindValue(G4double e, G4int id = 0) const;
  
  virtual const G4VEMDataSet* GetComponent(G4int i) const;

  virtual void AddComponent(G4VEMDataSet* dataSet);

  virtual size_t NumberOfComponents() const;

  void PrintData() const;

  const G4DataVector& GetEnergies(G4int) const { return *energies; }
  const G4DataVector& GetData(G4int) const { return *data; }

private:

  // Hide copy constructor and assignment operator 
  G4EMDataSet& operator=(const G4EMDataSet& right);
  G4EMDataSet(const G4EMDataSet&);

  void LoadData(const G4String& dataFile);
  
  G4int FindBinLocation(G4double energy) const;

  G4int z;

  G4DataVector* energies; // Owned pointer
  G4DataVector* data;     // Owned pointer

  const G4VDataSetAlgorithm* algorithm; // Owned pointer 
  
  G4double unit1;
  G4double unit2;

  size_t numberOfBins;

};
 
#endif