// 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.

//  Transfer_Iterator.gxx
#include <Standard_NoSuchObject.hxx>


//  TheStart est suppose Handle(Standard_Transient) ou (Transfer_Finder)
//  Il a servi a instancier TheList qui est une HSequence


Transfer_Iterator::Transfer_Iterator (const Standard_Boolean withstarts)
    : Transfer_TransferIterator ()
{  if (withstarts) thestarts = new TheList();  }


    void  Transfer_Iterator::Add
  (const Handle(Transfer_Binder)& binder)
{
  if (!thestarts.IsNull()) throw Standard_NoSuchObject("Transfer_Iterator : Add, Starting Object required not provided");
  AddItem(binder);
}

    void  Transfer_Iterator::Add
  (const Handle(Transfer_Binder)& binder, const TheStart& start)
{
  AddItem(binder);
  if (!thestarts.IsNull()) thestarts->Append(start);
}

    void  Transfer_Iterator::Filter
  (const Handle(TheList)& list, const Standard_Boolean keep)
{
  if (list.IsNull() || thestarts.IsNull()) return;
  Standard_Integer i, j, nb = thestarts->Length();
  if (nb == 0) return;
  Handle(Transfer_Binder) factice;
  Transfer_TransferMap amap (nb);
  for (i = 1; i <= nb; i ++) {
    j = amap.Add (thestarts->Value(i),factice);
    SelectItem (j,!keep);
  }

//  Comparaison
  nb = list->Length();
  for (i = 1; i <= nb; i ++) {
    j = amap.FindIndex (list->Value(i));
    if (j > 0) SelectItem (j,keep);
  }
}

    Standard_Boolean  Transfer_Iterator::HasStarting () const
      {  return (!thestarts.IsNull());  }

    const TheStart&  Transfer_Iterator::Starting () const
{
//  if (thecurr == 0 || thecurr > themaxi) throw Standard_NoSuchObject
//    ("TransferIterator : Starting");
//  if (theselect->Value(thecurr) == 0)    throw Standard_NoSuchObject
//    ("TransferIterator : Starting");
  if (thestarts.IsNull()) throw Standard_NoSuchObject("TransferIterator : No Starting defined at all");
  return thestarts->Value(thecurr);
}