// This code implementation is the intellectual property of
// the GEANT4 collaboration.
//
// By copying, distributing or modifying the Program (or any work
// based on the Program) you indicate your acceptance of this statement,
// and all its terms.
//
// $Id: G4VModularPhysicsList.hh,v 1.1 2000/11/14 23:53:13 kurasige Exp $
// GEANT4 tag $Name: geant4-03-01 $
//
// 
// ------------------------------------------------------------
//	GEANT 4 class header file 
// Class Description:
//      This class is an derived class of G4VUserPhysicsList.     
//       User should regsiter his/her physics constructors 
//      by using 
//         G4VModularPhysicsList::RegsiterPhysics() 
//      to construt particles and processes.
//       In addition User must implement following four virtual methods
//      in his own concrete class derived from this class. 
//        G4VModularPhysicsList::SetCuts()
//           set cut values in range to all particles
//           (and rebuilding physics table will be invoked )
//
// ------------------------------------------- 
//	History
//        first version                   12 Nov. 2000 by H.Kurashige 
// ------------------------------------------------------------
#ifndef G4VModularPhysicsList_h
#define G4VModularPhysicsList_h 1

#include "globals.hh"
#include "G4ios.hh"
#include "g4std/vector"

#include "G4VUserPhysicsList.hh"
#include "G4VPhysicsConstructor.hh"

class G4VModularPhysicsList: public G4VUserPhysicsList
{
  public: 
    G4VModularPhysicsList();
    virtual ~G4VModularPhysicsList();

  public:  // with description
    //  "SetCuts" method sets a cut value for all particle types 
    //   in the particle table
    virtual void SetCuts() = 0; 

  protected: // with description
    // This method will be invoked in the Construct() method. 
    // each particle type will be instantiated
    virtual void ConstructParticle();
 
    // This method will be invoked in the Construct() method.
    // each physics process will be instantiated and
    // registered to the process manager of each particle type 
    virtual void ConstructProcess();
  
  public: // with description
    void RegisterPhysics(G4VPhysicsConstructor* );

    const G4VPhysicsConstructor* GetPhysics(G4int index) const;
    const G4VPhysicsConstructor* GetPhysics(const G4String& name) const;

    
  /////////////////////////////////////
  protected: // with description
   // vector of pointers to G4VPhysicsConstructor
   typedef G4std::vector<G4VPhysicsConstructor*> G4PhysConstVector;
   G4PhysConstVector* physicsVector;
};
   
inline 
 G4VModularPhysicsList::G4VModularPhysicsList()
                  : G4VUserPhysicsList()
{
   physicsVector = new G4PhysConstVector();
}

inline 
 G4VModularPhysicsList::~G4VModularPhysicsList()
{
  G4PhysConstVector::iterator itr;
  for (itr = physicsVector->begin(); itr!= physicsVector->end(); ++itr) {
    delete (*itr);
  }
  physicsVector->clear();
}

inline 
 void G4VModularPhysicsList::ConstructParticle()
{
  // create particles
  G4PhysConstVector::iterator itr;
  for (itr = physicsVector->begin(); itr!= physicsVector->end(); ++itr) {
    (*itr)->ConstructParticle();;
  }
}

inline 
 void G4VModularPhysicsList::ConstructProcess()
{
  AddTransportation();

  G4PhysConstVector::iterator itr;
  for (itr = physicsVector->begin(); itr!= physicsVector->end(); ++itr) {
    (*itr)->ConstructProcess();
  }
}

inline 
 void G4VModularPhysicsList::RegisterPhysics(G4VPhysicsConstructor* fPhysics)
{
  physicsVector->push_back(fPhysics);
}    

inline  
 const G4VPhysicsConstructor* G4VModularPhysicsList::GetPhysics(G4int idx) const
{
  G4int i;
  G4PhysConstVector::iterator itr= physicsVector->begin();
  for (i=0; i<idx && itr!= physicsVector->end() ; ++i) ++itr;
  if (itr!= physicsVector->end()) return (*itr);
  else return 0;
}

inline  
 const G4VPhysicsConstructor* G4VModularPhysicsList::GetPhysics(const G4String& name) const
{
  G4PhysConstVector::iterator itr;
  for (itr = physicsVector->begin(); itr!= physicsVector->end(); ++itr) {
    if ( name == (*itr)->GetPhysicsName()) break;
  }
  if (itr!= physicsVector->end()) return (*itr);
  else return 0;
}

   
    

#endif