// Created on: 1993-10-29
// Created by: Christophe MARION
// Copyright (c) 1993-1999 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 _HLRAlgo_PolyData_HeaderFile
#define _HLRAlgo_PolyData_HeaderFile

#include "Bnd_Box.hxx"
#include "HLRAlgo_BiPoint.hxx"
#include "HLRAlgo_PolyHidingData.hxx"
#include "NCollection_Array1.hxx"
#include "NCollection_HArray1.hxx"
#include "HLRAlgo_TriangleData.hxx"
#include "Standard.hxx"
#include "Standard_Boolean.hxx"
#include "Standard_Integer.hxx"
#include "Standard_Transient.hxx"
#include "Standard_Type.hxx"
#include "gp_XYZ.hxx"

class HLRAlgo_EdgeStatus;

//! Data structure of a set of Triangles.
class HLRAlgo_PolyData : public Standard_Transient
{

public:
  struct FaceIndices
  {
    //! The default constructor.
    FaceIndices()
        : Index(0),
          Min(0),
          Max(0)
    {
    }

    int Index, Min, Max;
  };

  struct Triangle
  {
    gp_XY  V1, V2, V3;
    double Param, TolParam, TolAng, Tolerance;
  };

  Standard_EXPORT HLRAlgo_PolyData();

  Standard_EXPORT void HNodes(const occ::handle<NCollection_HArray1<gp_XYZ>>& HNodes);

  Standard_EXPORT void HTData(const occ::handle<NCollection_HArray1<HLRAlgo_TriangleData>>& HTData);

  Standard_EXPORT void HPHDat(
    const occ::handle<NCollection_HArray1<HLRAlgo_PolyHidingData>>& HPHDat);

  void FaceIndex(const int I);

  int FaceIndex() const;

  NCollection_Array1<gp_XYZ>& Nodes() const;

  NCollection_Array1<HLRAlgo_TriangleData>& TData() const;

  NCollection_Array1<HLRAlgo_PolyHidingData>& PHDat() const;

  Standard_EXPORT void UpdateGlobalMinMax(Bnd_Box& theBox);

  bool Hiding() const;

  //! process hiding between <Pt1> and <Pt2>.
  Standard_EXPORT void HideByPolyData(const HLRAlgo_BiPoint::PointsT& thePoints,
                                      Triangle&                       theTriangle,
                                      HLRAlgo_BiPoint::IndicesT&      theIndices,
                                      const bool                      HidingShell,
                                      HLRAlgo_EdgeStatus&             status);

  FaceIndices& Indices() { return myFaceIndices; }

  DEFINE_STANDARD_RTTIEXT(HLRAlgo_PolyData, Standard_Transient)

private:
  //! evident.
  void hideByOneTriangle(const HLRAlgo_BiPoint::PointsT& thePoints,
                         Triangle&                       theTriangle,
                         const bool                      Crossing,
                         const bool                      HideBefore,
                         const int                       TrFlags,
                         HLRAlgo_EdgeStatus&             status);

  FaceIndices                                              myFaceIndices;
  occ::handle<NCollection_HArray1<gp_XYZ>>                 myHNodes;
  occ::handle<NCollection_HArray1<HLRAlgo_TriangleData>>   myHTData;
  occ::handle<NCollection_HArray1<HLRAlgo_PolyHidingData>> myHPHDat;
};

#include "HLRAlgo_PolyData.lxx"

#endif // _HLRAlgo_PolyData_HeaderFile