// Created by: DAUTRY Philippe
// Copyright (c) 1997-1999 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.

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

// Version:     0.0
//Version Date            Purpose
//              0.0     Feb  7 1997     Creation

#include <TDF_LabelNode.hxx>
#include <TDF_TagSource.hxx>
#include <TDF_Data.hxx>

inline TDF_Label::TDF_Label()
:myLabelNode(NULL)
{}

inline TDF_Label::TDF_Label(const TDF_LabelNodePtr& aNode)
:myLabelNode(aNode)
{}

inline void TDF_Label::Nullify()
{ myLabelNode = NULL; }

inline Standard_Boolean TDF_Label::IsRoot() const
{ return myLabelNode->IsRoot(); }

inline Standard_Boolean TDF_Label::IsNull() const
{ return (myLabelNode == NULL); }

inline Standard_Boolean TDF_Label::IsImported() const
{ return myLabelNode->IsImported(); }

inline Standard_Boolean TDF_Label::IsEqual(const TDF_Label& aLabel) const
{ return (myLabelNode == aLabel.myLabelNode); }

inline Standard_Boolean TDF_Label::IsDifferent(const TDF_Label& aLabel) const
{ return (myLabelNode != aLabel.myLabelNode); }

inline Standard_Integer TDF_Label::Tag() const
{ return myLabelNode->Tag(); }

inline const TDF_Label TDF_Label::Father() const
{ return TDF_Label(myLabelNode->Father()); }

inline Standard_Boolean TDF_Label::HasChild() const
{ return (myLabelNode->FirstChild() != NULL); }

inline Standard_Boolean TDF_Label::AttributesModified() const
{ return myLabelNode->AttributesModified(); }

inline Standard_Boolean TDF_Label::MayBeModified() const
{ return myLabelNode->MayBeModified(); }

inline Handle(TDF_Data) TDF_Label::Data() const
{ return myLabelNode->Data(); }

inline Standard_OStream& operator << (Standard_OStream& anOS,
                                      const TDF_Label& aLab)
{ aLab.Dump(anOS); return anOS; }

inline TDF_Label TDF_Label::NewChild () const
{ return TDF_TagSource::NewChild(*this); }