// Created by: Eugeny MALTCHIKOV
// Copyright (c) 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 _BRepLib_CheckCurveOnSurface_HeaderFile
#define _BRepLib_CheckCurveOnSurface_HeaderFile

#include "GeomLib_CheckCurveOnSurface.hxx"

//! Computes the max distance between edge and its 2d representation on the face.
//! This class is not intended to process non-sameparameter edges.

class BRepLib_CheckCurveOnSurface
{
public:
  DEFINE_STANDARD_ALLOC

  //! Default constructor
  BRepLib_CheckCurveOnSurface()
      : myIsParallel(false)
  {
  }

  //! Constructor
  Standard_EXPORT BRepLib_CheckCurveOnSurface(const TopoDS_Edge& theEdge,
                                              const TopoDS_Face& theFace);

  //! Sets the data for the algorithm
  Standard_EXPORT void Init(const TopoDS_Edge& theEdge, const TopoDS_Face& theFace);

  //! Performs the calculation
  //! If myIsParallel == true then computation will be performed in parallel.
  Standard_EXPORT void Perform();

  //! Returns true if the max distance has been found
  bool IsDone() const { return myCOnSurfGeom.ErrorStatus() == 0; }

  //! Sets parallel flag
  void SetParallel(const bool theIsParallel) { myIsParallel = theIsParallel; }

  //! Returns true if parallel flag is set
  bool IsParallel() { return myIsParallel; }

  //! Returns error status
  //! The possible values are:
  //! 0 - OK;
  //! 1 - null curve or surface or 2d curve;
  //! 2 - invalid parametric range;
  //! 3 - error in calculations.
  int ErrorStatus() const { return myCOnSurfGeom.ErrorStatus(); }

  //! Returns max distance
  double MaxDistance() const { return myCOnSurfGeom.MaxDistance(); }

  //! Returns parameter in which the distance is maximal
  double MaxParameter() const { return myCOnSurfGeom.MaxParameter(); }

protected:
  //! Computes the max distance for the 3d curve of <myCOnSurfGeom>
  //! and 2d curve <theCurveOnSurface>
  //! If isMultiThread == true then computation will be performed in parallel.
  Standard_EXPORT void Compute(const occ::handle<Adaptor3d_CurveOnSurface>& theCurveOnSurface);

private:
  GeomLib_CheckCurveOnSurface           myCOnSurfGeom;
  occ::handle<Adaptor3d_CurveOnSurface> myAdaptorCurveOnSurface;
  occ::handle<Adaptor3d_CurveOnSurface> myAdaptorCurveOnSurface2;
  bool                                  myIsParallel;
};

#endif // _BRepLib_CheckCurveOnSurface_HeaderFile