// Created on: 1993-01-09
// Created by: CKY / Contract Toubro-Larsen ( Kiran )
// 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 _IGESGeom_TrimmedSurface_HeaderFile
#define _IGESGeom_TrimmedSurface_HeaderFile

#include "Standard.hxx"

#include "Standard_Integer.hxx"
#include "IGESGeom_CurveOnSurface.hxx"
#include "NCollection_Array1.hxx"
#include "NCollection_HArray1.hxx"
#include "IGESData_IGESEntity.hxx"
class IGESGeom_CurveOnSurface;

//! defines IGESTrimmedSurface, Type <144> Form <0>
//! in package IGESGeom
//! A simple closed curve in Euclidean plane divides the
//! plane in to two disjoint, open connected components; one
//! bounded, one unbounded. The bounded one is called the
//! interior region to the curve. Unbounded component is called
//! exterior region to the curve. The domain of the trimmed
//! surface is defined as the interior of the outer boundaries
//! and exterior of the inner boundaries and includes the
//! boundary curves.
class IGESGeom_TrimmedSurface : public IGESData_IGESEntity
{

public:
  Standard_EXPORT IGESGeom_TrimmedSurface();

  //! This method is used to set the fields of the class
  //! TrimmedSurface
  //! - aSurface  : Surface to be trimmed
  //! - aFlag     : Outer boundary type
  //! False = The outer boundary is the boundary of
  //! rectangle D which is the domain of the
  //! surface to be trimmed
  //! True  = otherwise
  //! - anOuter   : Closed curve which constitutes outer boundary
  //! - allInners : Array of closed curves which constitute the
  //! inner boundary
  Standard_EXPORT void Init(
    const occ::handle<IGESData_IGESEntity>&                                       aSurface,
    const int                                                                     aFlag,
    const occ::handle<IGESGeom_CurveOnSurface>&                                   anOuter,
    const occ::handle<NCollection_HArray1<occ::handle<IGESGeom_CurveOnSurface>>>& allInners);

  //! returns the surface to be trimmed
  Standard_EXPORT occ::handle<IGESData_IGESEntity> Surface() const;

  //! returns True if outer contour exists
  Standard_EXPORT bool HasOuterContour() const;

  //! returns the outer contour of the trimmed surface
  Standard_EXPORT occ::handle<IGESGeom_CurveOnSurface> OuterContour() const;

  //! returns the outer contour type of the trimmed surface
  //! 0  : The outer boundary is the boundary of D
  //! 1  : otherwise
  Standard_EXPORT int OuterBoundaryType() const;

  //! returns the number of inner boundaries
  Standard_EXPORT int NbInnerContours() const;

  //! returns the Index'th inner contour
  //! raises exception if Index <= 0 or Index > NbInnerContours()
  Standard_EXPORT occ::handle<IGESGeom_CurveOnSurface> InnerContour(const int Index) const;

  DEFINE_STANDARD_RTTIEXT(IGESGeom_TrimmedSurface, IGESData_IGESEntity)

private:
  occ::handle<IGESData_IGESEntity>                                       theSurface;
  int                                                                    theFlag;
  occ::handle<IGESGeom_CurveOnSurface>                                   theOuterCurve;
  occ::handle<NCollection_HArray1<occ::handle<IGESGeom_CurveOnSurface>>> theInnerCurves;
};

#endif // _IGESGeom_TrimmedSurface_HeaderFile