// Created by: DAUTRY Philippe
// Copyright (c) 1997-1999 Matra Datavision
// Copyright (c) 1999-2012 OPEN CASCADE SAS
//
// The content of this file is subject to the Open CASCADE Technology Public
// License Version 6.5 (the "License"). You may not use the content of this file
// except in compliance with the License. Please obtain a copy of the License
// at http://www.opencascade.org and read it completely before using this file.
//
// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
//
// The Original Code and all software distributed under the License is
// distributed on an "AS IS" basis, without warranty of any kind, and the
// Initial Developer hereby disclaims all such warranties, including without
// limitation, any warranties of merchantability, fitness for a particular
// purpose or non-infringement. Please see the License for the specific terms
// and conditions governing the rights and limitations under the License.

//      	----------------------------------

// Version:	0.0
//Version	Date		Purpose
//		0.0	Oct 10 1997	Creation



#include <TDF_DefaultDeltaOnModification.ixx>

#include <TDF_Label.hxx>
#include <Standard_GUID.hxx>


//=======================================================================
//function : TDF_DefaultDeltaOnModification
//purpose  : 
//=======================================================================

TDF_DefaultDeltaOnModification::TDF_DefaultDeltaOnModification
(const Handle(TDF_Attribute)& anAttribute)
: TDF_DeltaOnModification(anAttribute)
{}


//=======================================================================
//function : Apply
//purpose  : 
//=======================================================================

void TDF_DefaultDeltaOnModification::Apply() 
{
  const Handle(TDF_Attribute)& savAtt = Attribute();
  Handle(TDF_Attribute) refAtt;
  if (Label().FindAttribute(savAtt->ID(),refAtt))
    refAtt->DeltaOnModification(this);
}