// Created on: 1993-11-18
// Created by: Isabelle GRIGNON
// 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.

#include <TopoDS.hxx>

//=======================================================================
//function : SetFirstStatus
//purpose  : 
//=======================================================================

inline void  ChFiDS_Spine::SetFirstStatus(const ChFiDS_State S)
{
  firstState = S;
}


//=======================================================================
//function : SetLastStatus
//purpose  : 
//=======================================================================

inline void  ChFiDS_Spine::SetLastStatus(const ChFiDS_State S)
{
  lastState = S;
}
//=======================================================================
//function : FirstStatus
//purpose  : 
//=======================================================================

inline ChFiDS_State  ChFiDS_Spine::FirstStatus()const 
{
  return firstState;
}


//=======================================================================
//function : LastStatus
//purpose  : 
//=======================================================================

inline ChFiDS_State  ChFiDS_Spine::LastStatus()const 
{
  return lastState;
}


//=======================================================================
//function : SetStatus
//purpose  : 
//=======================================================================

inline void  ChFiDS_Spine::SetStatus(const ChFiDS_State S,
				     const Standard_Boolean IsFirst)
{
  if(IsFirst) firstState = S;
  else lastState = S;
}
//=======================================================================
//function : Status
//purpose  : 
//=======================================================================

inline ChFiDS_State  ChFiDS_Spine::Status(const Standard_Boolean IsFirst)const 
{
  if (IsFirst) return firstState;
  else return lastState;
}

//=======================================================================
//function : SetTangencyExtremity
//purpose  : 
//=======================================================================

inline void  ChFiDS_Spine::SetTangencyExtremity(const Standard_Boolean IsTangency,
						const Standard_Boolean IsFirst)
{
  if(IsFirst)  firstistgt = IsTangency ;
  else         lastistgt = IsTangency;
}
//=======================================================================
//function : IsTangencyExtremity
//purpose  : 
//=======================================================================

inline Standard_Boolean 
ChFiDS_Spine::IsTangencyExtremity(const Standard_Boolean IsFirst)const 
{
  if (IsFirst) return firstistgt;
  else return lastistgt;
}

//=======================================================================
//function : NbEdges
//purpose  : 
//=======================================================================

inline Standard_Integer  ChFiDS_Spine::NbEdges() const 
{
  return spine.Length();
}


//=======================================================================
//function : Edges
//purpose  : 
//=======================================================================

inline const TopoDS_Edge&  ChFiDS_Spine::Edges(const Standard_Integer I) const 
{
  return TopoDS::Edge(spine.Value(I));
}

//=======================================================================
//function : SetEdges
//purpose  : 
//=======================================================================

inline void  ChFiDS_Spine::SetEdges(const TopoDS_Edge& E)
{
  spine.Append(E);
}

//=======================================================================
//function : PutInFirst
//purpose  : 
//=======================================================================

inline void  ChFiDS_Spine::PutInFirst(const TopoDS_Edge& E)
{
  spine.InsertBefore(1,E);
}

//=======================================================================
//function : CurrentIndexOfElementarySpine
//purpose  : 
//=======================================================================
inline Standard_Integer ChFiDS_Spine::CurrentIndexOfElementarySpine() const 
{
  return indexofcurve;
}