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//
// $Id$
//
//
// class G4VPVDivisionFactory
//
// Class description:
//
// Abstract factory that defines interfaces for creating 
// volumes divisions. 

// Author: Ivana Hrivnacova, 4.5.2004  (Ivana.Hrivnacova@cern.ch)
// ------------------------------------------------------------------------
#ifndef G4VPVDIVISION_FACTORY_HH
#define G4VPVDIVISION_FACTORY_HH

#include "geomdefs.hh"

class G4LogicalVolume;
class G4VPhysicalVolume;
class G4VPVParameterisation;

class G4VPVDivisionFactory
{
  public:  // with description

    virtual ~G4VPVDivisionFactory();
    
    static  G4VPVDivisionFactory* Instance();
    
    virtual G4VPhysicalVolume* CreatePVDivision(
                             const G4String& pName,
                                   G4LogicalVolume* pLogical,
                                   G4LogicalVolume* pMother,
                             const EAxis pAxis,
                             const G4int nReplicas,
                             const G4double width,
                             const G4double offset ) = 0;
      // Create division - with number of divisions and width.

    virtual G4VPhysicalVolume* CreatePVDivision(
                             const G4String& pName,
                                   G4LogicalVolume* pLogical,
                                   G4LogicalVolume* pMotherLogical,
                             const EAxis pAxis,
                             const G4int nReplicas,
                             const G4double offset ) = 0;
      // Create division - with number of divisions.

    virtual G4VPhysicalVolume* CreatePVDivision(
                             const G4String& pName,
                                   G4LogicalVolume* pLogical,
                                   G4LogicalVolume* pMotherLogical,
                             const EAxis pAxis,
                             const G4double width,
                             const G4double offset ) = 0;
      // Create division - with width.

    virtual G4VPhysicalVolume* CreatePVDivision(
                             const G4String& pName,
                                   G4LogicalVolume* pLogical,
                                   G4LogicalVolume* pMotherLogical,
                             const G4VPVParameterisation* param) = 0;
      // Create division - with parameterisation.

    virtual G4bool IsPVDivision(const G4VPhysicalVolume* pv) const = 0;
      // Returns true if pv is division.

  protected:

   G4VPVDivisionFactory();

  protected:

   static G4VPVDivisionFactory* fgInstance;
     
};

#endif