#include <cpPlugins/Plugins/ImageWriter.h>
#include <cpPlugins/Interface/Image.h>

#include <itkImageFileWriter.h>

// -------------------------------------------------------------------------
cpPlugins::Plugins::ImageWriter::
ImageWriter( )
  : Superclass( )
{
  this->m_ClassName = "cpPlugins::ImageWriter";
  this->m_ClassCategory = "ImageWriter";
  this->SetNumberOfInputs( 1 );

  using namespace cpPlugins::Interface;
  this->m_DefaultParameters.Configure( Parameters::String, "FileName" );
  this->m_Parameters = this->m_DefaultParameters;
}

// -------------------------------------------------------------------------
cpPlugins::Plugins::ImageWriter::
~ImageWriter( )
{
}

// -------------------------------------------------------------------------
std::string cpPlugins::Plugins::ImageWriter::
_GenerateData( )
{
  cpPlugins::Interface::Image* image =
    this->_Input< cpPlugins::Interface::Image >( 0 );
  if( image == NULL )
    return( "ImageWriter: No input image." );

  itk::DataObject* itk_image = NULL;
  std::string r = "";
  cpPlugins_Image_Input_Demangle_Dimension_AllTypes(
    2, image, itk_image, r, _RealGD
    );
  else cpPlugins_Image_Input_Demangle_Dimension_AllTypes(
    3, image, itk_image, r, _RealGD
    );
  else cpPlugins_Image_Input_Demangle_Dimension_AllTypes(
    4, image, itk_image, r, _RealGD
    );
  else cpPlugins_Image_Input_Demangle(
    itk::DiffusionTensor3D< float >, 3, image, itk_image, r, _RealGD
    );
  else cpPlugins_Image_Input_Demangle(
    itk::DiffusionTensor3D< double >, 3, image, itk_image, r, _RealGD
    );
  else r = "ImageWriter: Input image type not supported.";

  return( r );
}

// -------------------------------------------------------------------------
template< class I >
std::string cpPlugins::Plugins::ImageWriter::
_RealGD( itk::DataObject* image )
{
  typedef itk::ImageFileWriter< I > _W;
  
  // Get filename
  std::string fname = this->m_Parameters.GetValueAsString( "FileName" );
  _W* writer = dynamic_cast< _W* >( this->m_RealProcessObject.GetPointer( ) );
  if( writer == NULL )
  {
    this->m_RealProcessObject = _W::New( );
    writer = dynamic_cast< _W* >( this->m_RealProcessObject.GetPointer( ) );

  } // fi
  writer->SetFileName( fname );
  writer->SetInput( dynamic_cast< I* >( image ) );
  try
  {
    writer->Update( );
  }
  catch( itk::ExceptionObject& err )
  {
    return( "ImageWriter: " + std::string( err.GetDescription( ) ) );

  } // yrt
  return( "" );
}

// eof - $RCSfile$