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/*=========================================================================
Program: Visualization Toolkit
Module: vtkGraphLayoutStrategy.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/*-------------------------------------------------------------------------
Copyright 2008 Sandia Corporation.
Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
#include "vtkGraphLayoutStrategy.h"
#include "vtkGraph.h"
void vtkGraphLayoutStrategy::SetGraph(vtkGraph *graph)
{
// This method is a cut and paste of vtkCxxSetObjectMacro
// except for the call to Initialize in the middle :)
if (graph != this->Graph)
{
vtkGraph *tmp = this->Graph;
this->Graph = graph;
if (this->Graph != NULL)
{
this->Graph->Register(this);
this->Initialize();
}
if (tmp != NULL)
{
tmp->UnRegister(this);
}
this->Modified();
}
}
vtkGraphLayoutStrategy::vtkGraphLayoutStrategy()
{
this->Graph = NULL;
this->EdgeWeightField = NULL;
this->WeightEdges = false;
}
vtkGraphLayoutStrategy::~vtkGraphLayoutStrategy()
{
// Unregister vtk objects that were passed in
this->SetGraph(NULL);
this->SetEdgeWeightField(NULL);
}
void vtkGraphLayoutStrategy::SetWeightEdges(bool state)
{
// This method is a cut and paste of vtkSetMacro
// except for the call to Initialize at the end :)
if (this->WeightEdges != state)
{
this->WeightEdges = state;
this->Modified();
if(this->Graph)
{
this->Initialize();
}
}
}
void vtkGraphLayoutStrategy::SetEdgeWeightField(const char* weights)
{
// This method is a cut and paste of vtkSetStringMacro
// except for the call to Initialize at the end :)
if ( this->EdgeWeightField == NULL && weights == NULL) { return;}
if ( this->EdgeWeightField && weights && (!strcmp(this->EdgeWeightField,weights))) { return;}
delete [] this->EdgeWeightField;
if (weights)
{
size_t n = strlen(weights) + 1;
char *cp1 = new char[n];
const char *cp2 = (weights);
this->EdgeWeightField = cp1;
do { *cp1++ = *cp2++; } while ( --n );
}
else
{
this->EdgeWeightField = NULL;
}
this->Modified();
if(this->Graph)
{
this->Initialize();
}
}
void vtkGraphLayoutStrategy::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
os << indent << "Graph: " << (this->Graph ? "" : "(none)") << endl;
if (this->Graph)
{
this->Graph->PrintSelf(os, indent.GetNextIndent());
}
os << indent << "WeightEdges: " << (this->WeightEdges ? "True" : "False") << endl;
os << indent << "EdgeWeightField: " << (this->EdgeWeightField ? this->EdgeWeightField : "(none)") << endl;
}
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