#include <ImageGradientFilters/GulsunTekImageFilter.h>
#include <cpPlugins/DataObjects/Image.h>
#include <cpPlugins/DataObjects/Image_Demanglers.h>

#include <cpExtensions/Algorithms/ImageFunctionFilter.h>
#include <cpExtensions/Algorithms/GulsunTekMedialness.h>

// -------------------------------------------------------------------------
cpPluginsImageGradientFilters::GulsunTekImageFilter::
GulsunTekImageFilter( )
  : Superclass( )
{
  typedef cpPlugins::DataObjects::Image _TImage;

  this->_ConfigureInput< _TImage >( "Input", true, false );
  this->_ConfigureInput< _TImage >( "Mask", false, false );
  this->_ConfigureOutput< _TImage >( "Output" );

  this->m_Parameters.ConfigureAsReal( "MinRadius", 0 );
  this->m_Parameters.ConfigureAsReal( "MaxRadius", 1 );
  this->m_Parameters.ConfigureAsUint( "ProfileSampling", 4 );
  this->m_Parameters.ConfigureAsUint( "RadialSampling", 10 );
}

// -------------------------------------------------------------------------
cpPluginsImageGradientFilters::GulsunTekImageFilter::
~GulsunTekImageFilter( )
{
}

// -------------------------------------------------------------------------
void cpPluginsImageGradientFilters::GulsunTekImageFilter::
_GenerateData( )
{
  auto o = this->GetInputData( "Input" );
  cpPlugins_Demangle_Image_CovariantVectorPixels_AllDims_1( o, _GD0 )
    this->_Error( "Invalid input image." );
}

// -------------------------------------------------------------------------
template< class _TImage >
void cpPluginsImageGradientFilters::GulsunTekImageFilter::
_GD0( _TImage* image )
{
  typedef itk::Image< bool, _TImage::ImageDimension > _TDummy;

  auto o = this->GetInputData( "Mask" );
  cpPlugins_Demangle_Image_ScalarPixels_2( o, _GD1, _TImage::ImageDimension, image )
    this->_GD1< _TDummy, _TImage >( NULL, image );
}

// -------------------------------------------------------------------------
template< class _TMask, class _TImage >
void cpPluginsImageGradientFilters::GulsunTekImageFilter::
_GD1( _TMask* mask, _TImage* image )
{
  typedef typename _TImage::PixelType _TGradient;
  typedef cpExtensions::Algorithms::GulsunTekMedialness< _TImage, _TMask > _TFunction;
  typedef typename _TFunction::TOutput _TScalar;
  typedef itk::Image< _TScalar, _TImage::ImageDimension > _TOutputImage;
  typedef cpExtensions::Algorithms::ImageFunctionFilter< _TImage, _TOutputImage, _TFunction > _TFilter;

  auto filter = this->_CreateITK< _TFilter >( );
  auto function = filter->GetFunction( );
  if( function == NULL )
  {
    filter->SetFunction( _TFunction::New( ) );
    function = filter->GetFunction( );

  } // fi
  function->SetMinRadius( this->m_Parameters.GetReal( "MinRadius" ) );
  function->SetMaxRadius( this->m_Parameters.GetReal( "MaxRadius" ) );
  function->SetProfileSampling( this->m_Parameters.GetUint( "ProfileSampling" ) );
  function->SetRadialSampling( this->m_Parameters.GetUint( "RadialSampling" ) );
  filter->SetInput( image );
  if( mask != NULL )
    function->SetMask( mask );
  filter->Update( );
  this->GetOutput( "Output" )->SetITK( filter->GetOutput( ) );
}

// eof - $RCSfile$