text: /*=========================================================================
  
    Program:   Visualization Toolkit
    Module:    TestChacoGraphReader.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 "vtkActor.h"
  #include "vtkChacoGraphReader.h"
  #include "vtkCircularLayoutStrategy.h"
  #include "vtkFast2DLayoutStrategy.h"
  #include "vtkGraphLayout.h"
  #include "vtkGraphMapper.h"
  #include "vtkRegressionTestImage.h"
  #include "vtkRenderWindow.h"
  #include "vtkRenderWindowInteractor.h"
  #include "vtkRenderer.h"
  #include "vtkSmartPointer.h"
  #include "vtkTestUtilities.h"
  
  #define VTK_CREATE(type, name) vtkSmartPointer<type> name = vtkSmartPointer<type>::New()
  
  int TestChacoGraphReader(int argc, char* argv[])
  {
    char* file = vtkTestUtilities::ExpandDataFileName(argc, argv, "Data/Infovis/small.graph");
    VTK_CREATE(vtkChacoGraphReader, reader);
    reader->SetFileName(file);
    delete[] file;
    reader->Update();
  
    VTK_CREATE(vtkCircularLayoutStrategy, strategy);
    VTK_CREATE(vtkGraphLayout, layout);
    layout->SetInputConnection(reader->GetOutputPort());
    layout->SetLayoutStrategy(strategy);
  
    VTK_CREATE(vtkGraphMapper, mapper);
    mapper->SetInputConnection(layout->GetOutputPort());
    VTK_CREATE(vtkActor, actor);
    actor->SetMapper(mapper);
    VTK_CREATE(vtkRenderer, ren);
    ren->AddActor(actor);
    VTK_CREATE(vtkRenderWindowInteractor, iren);
    VTK_CREATE(vtkRenderWindow, win);
    win->AddRenderer(ren);
    win->SetInteractor(iren);
    win->SetMultiSamples(0);
  
    int retVal = vtkRegressionTestImage(win);
    if (retVal == vtkRegressionTester::DO_INTERACTOR)
    {
      iren->Initialize();
      iren->Start();
  
      retVal = vtkRegressionTester::PASSED;
    }
  
    return !retVal;
  }
  