G4ElectronOccupancy.hh

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//
// G4ElectronOccupancy
//
// Class description:
//
// This class has information of occupation of electrons in atomic orbits.
// GetOccupancy(N) gives the number of electron in N-th orbit
//    For example : Carbon atom should be 
//          GetOccupancy(0)      --> 2
//          GetOccupancy(1)      --> 4
//          GetOccupancy(2..7)   --> 0
//
// GetTotalOccupancy() gives the total number of electrons
 
// Author: Hisaya Kurashige, 17 Aug 1999
// --------------------------------------------------------------------
#ifndef G4ElectronOccupancy_hh
#define G4ElectronOccupancy_hh 1
 
#include "globals.hh"
#include "G4Allocator.hh"
#include "G4ios.hh"
 
#include "pwdefs.hh"
 
class G4ElectronOccupancy 
{
  public:
 
    enum { MaxSizeOfOrbit = 20};
 
    G4ElectronOccupancy( G4int sizeOrbit = MaxSizeOfOrbit );
    G4ElectronOccupancy( const G4ElectronOccupancy& right );
 
    virtual ~G4ElectronOccupancy();
 
    inline void *operator new(size_t);
    inline void operator delete(void *aElectronOccupancy);
      // new/delete operators are overloaded to use G4Allocator
 
    G4ElectronOccupancy& operator=(const G4ElectronOccupancy& right);
    G4bool operator==(const G4ElectronOccupancy& right) const;
    G4bool operator!=(const G4ElectronOccupancy& right) const;
      // operators
   
    inline G4int GetTotalOccupancy() const;
    inline G4int GetOccupancy(G4int orbit) const;
      // The following methods returns
      //     0:  if the orbit(atom) is vacant 
      //    >0:  number of electrons in orbit
 
    G4int AddElectron(G4int orbit, G4int number = 1);
    G4int RemoveElectron(G4int orbit, G4int number = 1);
   
    inline G4int  GetSizeOfOrbit() const;
    void   DumpInfo() const;
 
  private:
 
    G4int  theSizeOfOrbit = 0;
    G4int  theTotalOccupancy = 0;
    G4int* theOccupancies = nullptr;
};
 
extern G4PART_DLL
       G4Allocator<G4ElectronOccupancy>*& aElectronOccupancyAllocator();
 
// ------------------------
// Inline methods
// ------------------------
 
inline
void * G4ElectronOccupancy::operator new(size_t)
{
  if (aElectronOccupancyAllocator() == nullptr)
  {
    aElectronOccupancyAllocator() = new G4Allocator<G4ElectronOccupancy>;
  }
  return (void*) aElectronOccupancyAllocator()->MallocSingle();
}
 
inline
void G4ElectronOccupancy::operator delete(void* aElectronOccupancy)
{
  aElectronOccupancyAllocator()
    ->FreeSingle((G4ElectronOccupancy *) aElectronOccupancy);
}
 
inline
G4int G4ElectronOccupancy::GetSizeOfOrbit() const
{
  return  theSizeOfOrbit;
}
 
inline
G4int G4ElectronOccupancy::GetTotalOccupancy() const
{
  return  theTotalOccupancy;
}
 
inline
G4int G4ElectronOccupancy::GetOccupancy(G4int orbit) const
{
  G4int value = 0;
  if ((orbit >=0)&&(orbit<theSizeOfOrbit))
  {
    value = theOccupancies[orbit];
  }
  return value;  
}
 
#endif