// Created on: 1995-06-14
// Created by: Jean Yves LEBEY
// Copyright (c) 1995-1999 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 _TopOpeBRep_FaceEdgeFiller_HeaderFile
#define _TopOpeBRep_FaceEdgeFiller_HeaderFile

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

#include <Standard_Integer.hxx>
#include <TopOpeBRepDS_ListOfInterference.hxx>
class TopoDS_Shape;
class TopOpeBRep_FaceEdgeIntersector;
class TopOpeBRepDS_HDataStructure;
class TopOpeBRepDS_Point;
class TopOpeBRepDS_DataStructure;
class TopOpeBRepDS_Interference;

class TopOpeBRep_FaceEdgeFiller
{
public:
  DEFINE_STANDARD_ALLOC

  Standard_EXPORT TopOpeBRep_FaceEdgeFiller();

  Standard_EXPORT void Insert(const TopoDS_Shape&                        F,
                              const TopoDS_Shape&                        E,
                              TopOpeBRep_FaceEdgeIntersector&            FEINT,
                              const Handle(TopOpeBRepDS_HDataStructure)& HDS);

protected:
private:
  //! Search, among a list of interferences accessed by the iterator
  //! <IT>, a geometry <G> whose 3D point is identical to the 3D point
  //! of the TheDSPoint <DSP>.
  //! returns True if such an interference has been found, False else.
  //! if True, iterator It points (by the Value() method) on the first
  //! interference accessing an identical 3D point.
  Standard_EXPORT Standard_Boolean ScanInterfList(TopOpeBRepDS_ListIteratorOfListOfInterference& IT,
                                                  const TopOpeBRepDS_Point&         DSP,
                                                  const TopOpeBRepDS_DataStructure& BDS) const;

  //! Search for an interference in list <IT> which 3D geometry
  //! equals 3D geometry of the current intersection of <EI>.
  //! The search is performed by ScanInterfList.
  //! if found, set <G> to the geometry of the interference found.
  //! returns found.
  Standard_EXPORT Standard_Boolean GetGeometry(TopOpeBRepDS_ListIteratorOfListOfInterference& IT,
                                               const TopOpeBRep_FaceEdgeIntersector&          EI,
                                               Standard_Integer&                              G,
                                               const TopOpeBRepDS_DataStructure& DS) const;

  Standard_EXPORT Standard_Integer MakeGeometry(TopOpeBRep_FaceEdgeIntersector& EI,
                                                TopOpeBRepDS_DataStructure&     DS) const;

  //! Get the geometry of a DS point <DSP>.
  //! First, search it with ScanInterfList (previous method).
  //! if found, set <G> to the geometry of the interference found.
  //! else, add the point <DSP> in the <DS> and set <G> to the
  //! value of the new geometry such created.
  //!
  //! returns the value of ScanInterfList().
  Standard_EXPORT Standard_Boolean GetGeometry(const TopOpeBRepDS_ListOfInterference& L,
                                               const TopOpeBRepDS_Point&              DSP,
                                               Standard_Integer&                      G,
                                               TopOpeBRepDS_DataStructure&            DS) const;

  //! Add interference <I> to list <LI>.
  //! Add <I> to the interference list of <I> geometry (via <BDS>).
  Standard_EXPORT void StoreInterference(const Handle(TopOpeBRepDS_Interference)& I,
                                         TopOpeBRepDS_ListOfInterference&         LI,
                                         TopOpeBRepDS_DataStructure&              BDS) const;
};

#endif // _TopOpeBRep_FaceEdgeFiller_HeaderFile
