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

  Program:   Visualization Toolkit
  Module:    vtkGenericOutlineFilter.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.

=========================================================================*/
#include "vtkGenericOutlineFilter.h"

#include "vtkGenericDataSet.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkOutlineSource.h"
#include "vtkPolyData.h"

vtkStandardNewMacro(vtkGenericOutlineFilter);

//-----------------------------------------------------------------------------
vtkGenericOutlineFilter::vtkGenericOutlineFilter ()
{
  this->OutlineSource = vtkOutlineSource::New();
}

//-----------------------------------------------------------------------------
vtkGenericOutlineFilter::~vtkGenericOutlineFilter ()
{
  this->OutlineSource->Delete ();
}

//-----------------------------------------------------------------------------
int vtkGenericOutlineFilter::RequestData(
  vtkInformation *vtkNotUsed(request),
  vtkInformationVector **inputVector,
  vtkInformationVector *outputVector)
{
  // get the info objects
  vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
  vtkInformation *outInfo = outputVector->GetInformationObject(0);

  // get the input and output
  vtkGenericDataSet *input = vtkGenericDataSet::SafeDownCast(
    inInfo->Get(vtkDataObject::DATA_OBJECT()));
  vtkPolyData *output = vtkPolyData::SafeDownCast(
    outInfo->Get(vtkDataObject::DATA_OBJECT()));

//  vtkPolyData *output = this->GetOutput();
  
  vtkDebugMacro(<< "Creating dataset outline");

  //
  // Let OutlineSource do all the work
  //

  this->OutlineSource->SetBounds(input->GetBounds());
  this->OutlineSource->Update();

  output->CopyStructure(this->OutlineSource->GetOutput());
  return 1;
}


//-----------------------------------------------------------------------------
int vtkGenericOutlineFilter::RequestInformation(
  vtkInformation *request,
  vtkInformationVector **inputVector,
  vtkInformationVector *outputVector)
{
  // get the info objects
//  vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
//  vtkInformation *outInfo = outputVector->GetInformationObject(0);

  
  vtkDebugMacro(<< "Creating dataset outline");

  //
  // Let OutlineSource do all the work
  //
  
  int result = this->Superclass::RequestInformation(request,inputVector,
                                                    outputVector);

  this->OutlineSource->UpdateInformation();
  
  return result;
}

//----------------------------------------------------------------------------
int vtkGenericOutlineFilter::FillInputPortInformation(int port,
                                                      vtkInformation* info)
{
  if(!this->Superclass::FillInputPortInformation(port, info))
    {
    return 0;
    }
  info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkGenericDataSet");
  return 1;
}
