// Created on: 1997-04-17
// Created by: Christophe MARION
// Copyright (c) 1997-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

#ifndef _HLRBRep_FaceIterator_HeaderFile
#define _HLRBRep_FaceIterator_HeaderFile

#include <Standard.hxx>
#include <Standard_DefineAlloc.hxx>
#include <Standard_Handle.hxx>

#include <Standard_Integer.hxx>
#include <Standard_Boolean.hxx>
#include <TopAbs_Orientation.hxx>
class HLRAlgo_WiresBlock;
class HLRAlgo_EdgesBlock;
class HLRBRep_FaceData;



class HLRBRep_FaceIterator 
{
public:

  DEFINE_STANDARD_ALLOC

  
  Standard_EXPORT HLRBRep_FaceIterator();
  
  //! Begin an exploration of the edges of the face <fd>
  Standard_EXPORT void InitEdge (HLRBRep_FaceData& fd);
  
    Standard_Boolean MoreEdge() const;
  
  Standard_EXPORT void NextEdge();
  
  //! Returns True if the current edge is the first of a
  //! wire.
    Standard_Boolean BeginningOfWire() const;
  
  //! Returns True if the current edge is the  last of a
  //! wire.
    Standard_Boolean EndOfWire() const;
  
  //! Skip the current wire in the exploration.
    void SkipWire();
  
  //! Returns the edges of the current wire.
    Handle(HLRAlgo_EdgesBlock) Wire() const;
  
    Standard_Integer Edge() const;
  
    TopAbs_Orientation Orientation() const;
  
    Standard_Boolean OutLine() const;
  
    Standard_Boolean Internal() const;
  
    Standard_Boolean Double() const;
  
    Standard_Boolean IsoLine() const;




protected:





private:



  Standard_Integer iWire;
  Standard_Integer nbWires;
  Standard_Integer iEdge;
  Standard_Integer nbEdges;
  Handle(HLRAlgo_WiresBlock) myWires;
  Handle(HLRAlgo_EdgesBlock) myEdges;


};


#include <HLRBRep_FaceIterator.lxx>





#endif // _HLRBRep_FaceIterator_HeaderFile