G4ExtendedMaterial.hh

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// $Id: G4ExtendedMaterial.hh 96776 2016-05-06 14:11:00Z vnivanch $
//

//---------------------------------------------------------------------------
//
// ClassName:   G4ExtendedMaterial
//
// Description: Contains extended material properties
//
// Class description:
//
// Is used to define the additional material information. This class
// contains a map of G4VMaterialExtension associated with an integer
// key of G4PhysicsModelCatalog index.
//

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#ifndef G4EXTENDEDMATERIAL_HH
#define G4EXTENDEDMATERIAL_HH 1

#include "G4Material.hh"
#include <unordered_map>
#include <memory>
#include "G4VMaterialExtension.hh"//Needed for hash defintion


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// A map for material extensions based on the hash of the name.
// Extensions are owned by the map
using G4MaterialExtensionMap=std::unordered_map<G4String, //KEY
            std::unique_ptr<G4VMaterialExtension>,//VALUE
            G4MaterialExtensionHash>;//HASHING FUNCTOR

class G4ExtendedMaterial : public G4Material
{
public:  // with description
  //
  // Constructor to create an extended material from the base-class G4Material
  //
  G4ExtendedMaterial(const G4String& name,                              //its name
                     const G4Material* baseMaterial);     //base material

  //
  // Constructor to create an extended material from single element
  //
  G4ExtendedMaterial(const G4String& name,        //its name
                   G4double  z,         //atomic number
                   G4double  a,         //mass of mole
                   G4double  density,         //density
                   G4State   state    = kStateUndefined,  //solid,gas
                   G4double  temp     = NTP_Temperature,  //temperature
                   G4double  pressure = CLHEP::STP_Pressure); //pressure

  //
  // Constructor to create an extended material from a combination of elements
  // and/or materials subsequently added via AddElement and/or AddMaterial
  //
  G4ExtendedMaterial(const G4String& name,        //its name
                   G4double  density,         //density
                   G4int     nComponents,     //nbOfComponents
                   G4State   state    = kStateUndefined,  //solid,gas
                   G4double  temp     = NTP_Temperature,  //temperature
                   G4double  pressure = CLHEP::STP_Pressure); //pressure

  //
  // Constructor to create an extended material from the base extended material
  //
  G4ExtendedMaterial(const G4String& name,        //its name
                   G4double  density,         //density
             const G4ExtendedMaterial* baseMaterial,      //base material
                   G4State   state    = kStateUndefined,  //solid,gas
                   G4double  temp     = NTP_Temperature,  //temperature
                   G4double  pressure = CLHEP::STP_Pressure); //pressure

public:  
  virtual ~G4ExtendedMaterial() {};
  
private:
  G4MaterialExtensionMap fExtensionMap;
public:  // with description
  //
  // register G4VMaterialExtension
  // This class owns extensions. Register with:
  // RegisterExtension(std::unique_ptr<MyExtension>(new MyExtension("name")));
  // or:
  // RegisteerExtension(std::make_unique<MyExtension>("name"));
  void RegisterExtension(std::unique_ptr<G4VMaterialExtension> extension);
  //
  // retrieve G4VMaterialExtension, null pointer is returned if model is not available
  G4VMaterialExtension* RetrieveExtension(const G4String& name);

  inline G4int GetNumberOfExtensions() const
  { return fExtensionMap.size(); } 

  // Retrieve iterators, proxyes to c++ methods. These are const for read-only
  // access. Use Register/RetreiveExtension to modify map
  G4MaterialExtensionMap::const_iterator begin() const { return fExtensionMap.begin(); }
  G4MaterialExtensionMap::const_iterator cbegin() const { return fExtensionMap.cbegin(); }
  G4MaterialExtensionMap::const_iterator end() const { return fExtensionMap.end(); }
  G4MaterialExtensionMap::const_iterator cend() const { return fExtensionMap.cend(); }

public:
  virtual G4bool IsExtended() const;
  void Print(std::ostream& flux) const;
};

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#endif