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

  Copyright Brigham and Women's Hospital (BWH) All Rights Reserved.

  See COPYRIGHT.txt
  or http://www.slicer.org/copyright/copyright.txt for details.

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

#ifndef vtkITKImageToImageFilterUSF_h
#define vtkITKImageToImageFilterUSF_h

#include "vtkITKImageToImageFilter.h"
#include "vtkImageAlgorithm.h"
#include "itkImageToImageFilter.h"
#include "itkVTKImageExport.h"
#include "itkVTKImageImport.h"
#include "vtkITKUtility.h"

class VTK_ITK_EXPORT vtkITKImageToImageFilterUSF : public vtkITKImageToImageFilter
{
public:
  vtkTypeMacro(vtkITKImageToImageFilterUSF, vtkITKImageToImageFilter);
  static vtkITKImageToImageFilterUSF* New() { return 0; };
  void PrintSelf(ostream& os, vtkIndent indent)
  {
    Superclass::PrintSelf(os, indent);
    os << m_Filter;
  };

protected:
  /// To/from ITK
  typedef unsigned short InputImagePixelType;
  typedef float OutputImagePixelType;
  typedef itk::Image<InputImagePixelType, 3> InputImageType;
  typedef itk::Image<OutputImagePixelType, 3> OutputImageType;

  typedef itk::VTKImageImport<InputImageType> ImageImportType;
  typedef itk::VTKImageExport<OutputImageType> ImageExportType;
  ImageImportType::Pointer itkImporter;
  ImageExportType::Pointer itkExporter;

  typedef itk::ImageToImageFilter<InputImageType, OutputImageType> GenericFilterType;
  GenericFilterType::Pointer m_Filter;

  vtkITKImageToImageFilterUSF(GenericFilterType* filter)
  {
    /// Need an import, export, and a ITK pipeline
    m_Filter = filter;
    this->itkImporter = ImageImportType::New();
    this->itkExporter = ImageExportType::New();
    ConnectPipelines(this->vtkExporter, this->itkImporter);
    ConnectPipelines(this->itkExporter, this->vtkImporter);
    this->LinkITKProgressToVTKProgress(m_Filter);

    /// Set up the filter pipeline
    m_Filter->SetInput(this->itkImporter->GetOutput());
    this->itkExporter->SetInput(m_Filter->GetOutput());
    this->vtkCast->SetOutputScalarTypeToUnsignedShort();
  };

  ~vtkITKImageToImageFilterUSF() {};

private:
  vtkITKImageToImageFilterUSF(const vtkITKImageToImageFilterUSF&); /// Not implemented.
  void operator=(const vtkITKImageToImageFilterUSF&);              /// Not implemented.
};

#endif
