/*=========================================================================

  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 "vtkRenderer.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.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);
  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);

  int retVal = vtkRegressionTestImage(win);
  if (retVal == vtkRegressionTester::DO_INTERACTOR)
    {
    iren->Initialize();
    iren->Start();
    
    retVal = vtkRegressionTester::PASSED;
    }

  return !retVal;
}
