// Created on: 1998-03-16
// Created by: Pierre BARRAS
// Copyright (c) 1998-1999 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 _ShapeUpgrade_SplitSurface_HeaderFile
#define _ShapeUpgrade_SplitSurface_HeaderFile

#include "Standard.hxx"
#include "Standard_Type.hxx"

#include "NCollection_Sequence.hxx"
#include "NCollection_HSequence.hxx"
#include "Standard_Integer.hxx"
#include "Standard_Transient.hxx"
#include "ShapeExtend_Status.hxx"
class Geom_Surface;
class ShapeExtend_CompositeSurface;

// resolve name collisions with X11 headers
#ifdef Status
  #undef Status
#endif

//! Splits a Surface with a criterion.
class ShapeUpgrade_SplitSurface : public Standard_Transient
{

public:
  //! Empty constructor.
  Standard_EXPORT ShapeUpgrade_SplitSurface();

  //! Initializes with single supporting surface.
  Standard_EXPORT void Init(const occ::handle<Geom_Surface>& S);

  //! Initializes with single supporting surface with bounding parameters.
  Standard_EXPORT void Init(const occ::handle<Geom_Surface>& S,
                            const double                     UFirst,
                            const double                     ULast,
                            const double                     VFirst,
                            const double                     VLast,
                            const double                     theArea = 0.);

  //! Sets U parameters where splitting has to be done
  Standard_EXPORT void SetUSplitValues(const occ::handle<NCollection_HSequence<double>>& UValues);

  //! Sets V parameters where splitting has to be done
  Standard_EXPORT void SetVSplitValues(const occ::handle<NCollection_HSequence<double>>& VValues);

  //! Performs splitting of the supporting surface.
  //! If resulting surface is B-Spline and Segment is True,
  //! the result is composed with segments of the surface bounded
  //! by the U and V SplitValues (method Geom_BSplineSurface::Segment
  //! is used).
  //! If Segment is False, the result is composed with
  //! Geom_RectangularTrimmedSurface all based on the same complete
  //! surface.
  //! Fields myNbResultingRow and myNbResultingCol must be set to
  //! specify the size of resulting grid of surfaces.
  Standard_EXPORT virtual void Build(const bool Segment);

  //! Calculates points for correction/splitting of the surface.
  Standard_EXPORT virtual void Compute(const bool Segment = true);

  //! Performs correction/splitting of the surface.
  //! First defines splitting values by method Compute(), then calls method Build().
  Standard_EXPORT void Perform(const bool Segment = true);

  //! returns all the U splitting values including the
  //! First and Last parameters of the input surface
  Standard_EXPORT const occ::handle<NCollection_HSequence<double>>& USplitValues() const;

  //! returns all the splitting V values including the
  //! First and Last parameters of the input surface
  Standard_EXPORT const occ::handle<NCollection_HSequence<double>>& VSplitValues() const;

  //! Returns the status
  //! OK    - no splitting is needed
  //! DONE1 - splitting required and gives more than one patch
  //! DONE2 - splitting is required, but gives only single patch (initial)
  //! DONE3 - geometric form of the surface or parametrisation is modified
  Standard_EXPORT bool Status(const ShapeExtend_Status status) const;

  //! Returns obtained surfaces after splitting as CompositeSurface
  Standard_EXPORT const occ::handle<ShapeExtend_CompositeSurface>& ResSurfaces() const;

  DEFINE_STANDARD_RTTIEXT(ShapeUpgrade_SplitSurface, Standard_Transient)

protected:
  occ::handle<NCollection_HSequence<double>> myUSplitValues;
  occ::handle<NCollection_HSequence<double>> myVSplitValues;
  int                                        myNbResultingRow;
  int                                        myNbResultingCol;
  occ::handle<Geom_Surface>                  mySurface;
  int                                        myStatus;
  occ::handle<ShapeExtend_CompositeSurface>  myResSurfaces;
  double                                     myArea;
  double                                     myUsize;
  double                                     myVsize;
};

#endif // _ShapeUpgrade_SplitSurface_HeaderFile