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// Copyright: Matra-Datavision 1991
// File: PCollection_Edge.gxx
// Created: Thu May 30 10:40:42 1991
// Author: Denis PASCAL
// <dp>
// Revised by: Mireille MERCIEN
// Sep,7 1992
#include <Standard_NoMoreObject.hxx>
#include <Standard_NoSuchObject.hxx>
//---------------------------------------------------------------------------
// Constructor
//---------------------------------------------------------------------------
PCollection_Edge::
PCollection_Edge(const Handle(PCollection_Vertex)& Source,
const Handle(PCollection_Vertex)& Destination,
const Attribute& Value)
{
MyAttribute = Value;
MySource = Source;
MyDestination = Destination;
}
//---------------------------------------------------------------------------
// GetAttribute
//---------------------------------------------------------------------------
Attribute PCollection_Edge::GetAttribute () const
{
return MyAttribute;
}
//---------------------------------------------------------------------------
// SetAttribute
//---------------------------------------------------------------------------
void PCollection_Edge::SetAttribute (const Attribute& Value)
{
MyAttribute = Value;
}
//---------------------------------------------------------------------------
// Source
//---------------------------------------------------------------------------
Handle(PCollection_Vertex) PCollection_Edge::Source () const
{
return MySource;
}
//---------------------------------------------------------------------------
// Destination
//---------------------------------------------------------------------------
Handle(PCollection_Vertex) PCollection_Edge::Destination () const
{
return MyDestination;
}
//---------------------------------------------------------------------------
// SetSource
//---------------------------------------------------------------------------
void PCollection_Edge::SetSource (const Handle(PCollection_Vertex)& V)
{
MySource = V;
}
//---------------------------------------------------------------------------
// SetDestination
//---------------------------------------------------------------------------
void PCollection_Edge::SetDestination (const Handle(PCollection_Vertex)& V)
{
MyDestination = V;
}
//---------------------------------------------------------------------------
// Reverse
//---------------------------------------------------------------------------
void PCollection_Edge::Reverse ()
{
Handle(PCollection_Edge) me = this;
MyDestination->RemoveBackEdge(me);
MySource->RemoveFrontEdge(me);
MyDestination->AddFrontEdge(me);
MySource->AddBackEdge(me);
Handle (PCollection_Vertex) temp = MyDestination;
MyDestination = MySource;
MySource = temp;
}
//---------------------------------------------------------------------------
// IsLoop
//---------------------------------------------------------------------------
Boolean PCollection_Edge::IsLoop () const
{
return (MyDestination == MySource);
}
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