// 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.

class BRepLib_CheckCurveOnSurface 
{
public:

  DEFINE_STANDARD_ALLOC

  //! Default contructor
  BRepLib_CheckCurveOnSurface() {}
  
  //! Contructor
  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 isTheMultyTheadDisabled == TRUE then computation will be made
  //! without any parallelization.
  Standard_EXPORT void Perform (const Standard_Boolean isTheMultyTheradDisabled = Standard_False);
  
  //! Returns source 3D-Curve
  const Handle(Geom_Curve)& Curve() const
  {
    return myCOnSurfGeom.Curve();
  }  

  //! Returns mine 2D-Curve
  const Handle(Geom2d_Curve)& PCurve() const
  {
    return myPCurve;
  }
  
  //! Returns 2nd 2D-Curve (if it exists, e.g. for seam-edge)
  const Handle(Geom2d_Curve)& PCurve2() const
  {
    return myPCurve2;
  }
  
  //! Returns source surface
  const Handle(Geom_Surface)& Surface() const
  {
    return myCOnSurfGeom.Surface();
  }
  
  //! Returns first and last parameter of the curves
  //! (2D- and 3D-curves are considered to have same range)
  void Range (Standard_Real& theFirst, Standard_Real& theLast)
  {
    myCOnSurfGeom.Range(theFirst, theLast);
  }
  
  //! Returns true if the max distance has been found
  Standard_Boolean IsDone() const
  {
    return myCOnSurfGeom.ErrorStatus() == 0;
  }
  
  //! 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.
  Standard_Integer ErrorStatus() const
  {
    return myCOnSurfGeom.ErrorStatus();
  }
  
  //! Returns max distance
  Standard_Real MaxDistance() const
  {
    return myCOnSurfGeom.MaxDistance();
  }
  
  //! Returns parameter in which the distance is maximal
  Standard_Real MaxParameter() const
  {
    return myCOnSurfGeom.MaxParameter();
  }

protected:

  //! Computes the max distance for the 3d curve of <myCOnSurfGeom>
  //! and 2d curve <thePCurve>
  //! If isTheMultyTheadDisabled == TRUE then computation will be made
  //! without any parallelization.
  Standard_EXPORT void Compute (const Handle(Geom2d_Curve)& thePCurve, 
                                const Standard_Boolean isTheMultyTheradDisabled);

private:

  GeomLib_CheckCurveOnSurface myCOnSurfGeom;
  Handle(Geom2d_Curve) myPCurve;
  Handle(Geom2d_Curve) myPCurve2;
};

#endif // _BRepLib_CheckCurveOnSurface_HeaderFile