// Created on: 1993-01-09
// Created by: CKY / Contract Toubro-Larsen ( Anand NATRAJAN )
// 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 _IGESBasic_ExternalRefFileIndex_HeaderFile
#define _IGESBasic_ExternalRefFileIndex_HeaderFile

#include "Standard.hxx"

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

//! defines ExternalRefFileIndex, Type <402> Form <12>
//! in package IGESBasic
//! Contains a list of the symbolic names used by the
//! referencing files and the DE pointers to the
//! corresponding definitions within the referenced file
class IGESBasic_ExternalRefFileIndex : public IGESData_IGESEntity
{

public:
  Standard_EXPORT IGESBasic_ExternalRefFileIndex();

  //! This method is used to set the fields of the class
  //! ExternalRefFileIndex
  //! - aNameArray  : External Reference Entity symbolic names
  //! - allEntities : External Reference Entities
  //! raises exception if array lengths are not equal
  //! if size of aNameArray is not equal to size of allEntities
  Standard_EXPORT void Init(
    const occ::handle<NCollection_HArray1<occ::handle<TCollection_HAsciiString>>>& aNameArray,
    const occ::handle<NCollection_HArray1<occ::handle<IGESData_IGESEntity>>>&      allEntities);

  //! returns number of index entries
  Standard_EXPORT int NbEntries() const;

  //! returns the External Reference Entity symbolic name
  //! raises exception if Index <= 0 or Index > NbEntries()
  Standard_EXPORT occ::handle<TCollection_HAsciiString> Name(const int Index) const;

  //! returns the internal entity
  //! raises exception if Index <= 0 or Index > NbEntries()
  Standard_EXPORT occ::handle<IGESData_IGESEntity> Entity(const int Index) const;

  DEFINE_STANDARD_RTTIEXT(IGESBasic_ExternalRefFileIndex, IGESData_IGESEntity)

private:
  occ::handle<NCollection_HArray1<occ::handle<TCollection_HAsciiString>>> theNames;
  occ::handle<NCollection_HArray1<occ::handle<IGESData_IGESEntity>>>      theEntities;
};

#endif // _IGESBasic_ExternalRefFileIndex_HeaderFile