// 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.

#include <IFSelect_IntParam.hxx>
#include <IFSelect_SelectEntityNumber.hxx>
#include <Interface_EntityIterator.hxx>
#include <Interface_Graph.hxx>
#include <Interface_InterfaceModel.hxx>
#include <Standard_Type.hxx>
#include <TCollection_AsciiString.hxx>

IMPLEMENT_STANDARD_RTTIEXT(IFSelect_SelectEntityNumber, IFSelect_SelectBase)

IFSelect_SelectEntityNumber::IFSelect_SelectEntityNumber() = default;

void IFSelect_SelectEntityNumber::SetNumber(const occ::handle<IFSelect_IntParam>& num)
{
  thenum = num;
}

occ::handle<IFSelect_IntParam> IFSelect_SelectEntityNumber::Number() const
{
  return thenum;
}

Interface_EntityIterator IFSelect_SelectEntityNumber::RootResult(const Interface_Graph& G) const
{
  Interface_EntityIterator iter;
  int                      num = 0;
  if (!thenum.IsNull())
    num = thenum->Value();
  if (num < 1)
    return iter; // empty if num < 1 or num > NbEntities
  if (num <= G.Size())
    iter.GetOneItem(G.Entity(num));
  return iter;
}

TCollection_AsciiString IFSelect_SelectEntityNumber::Label() const
{
  int num = 0;
  if (!thenum.IsNull())
    num = thenum->Value();
  TCollection_AsciiString labl(num);
  labl.InsertBefore(1, "Entity Number ");
  return labl;
}
