#include <ImageThresholdFilters/ImageToBoundingBoxFromThreshold.h>
#include <cpPlugins/DataObjects/Image.h>
#include <cpPlugins/DataObjects/Image_Demanglers.h>
#include <cpPlugins/DataObjects/BoundingBox.h>

#include <itkImage.h>
#include <cpExtensions/Algorithms/ImageToBoundingBoxFromThreshold.h>

// -------------------------------------------------------------------------
cpPluginsImageThresholdFilters::ImageToBoundingBoxFromThreshold::
ImageToBoundingBoxFromThreshold( )
  : Superclass( )
{
  typedef cpPlugins::DataObjects::Image _TImage;
  typedef cpPlugins::DataObjects::BoundingBox _TBBox;

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

  this->m_Parameters.ConfigureAsReal( "LowerThreshold", 0 );
  this->m_Parameters.ConfigureAsReal( "UpperThreshold", 0 );
}

// -------------------------------------------------------------------------
cpPluginsImageThresholdFilters::ImageToBoundingBoxFromThreshold::
~ImageToBoundingBoxFromThreshold( )
{
}

// -------------------------------------------------------------------------
void cpPluginsImageThresholdFilters::ImageToBoundingBoxFromThreshold::
_GenerateData( )
{
  auto o = this->GetInputData( "Input" );
  cpPlugins_Demangle_Image_ScalarPixels_AllDims_1( o, _GD0 )
    this->_Error( "Invalid input image." );
}

// -------------------------------------------------------------------------
template< class _TImage >
void cpPluginsImageThresholdFilters::ImageToBoundingBoxFromThreshold::
_GD0( _TImage* image )
{
  typedef
    cpExtensions::Algorithms::ImageToBoundingBoxFromThreshold< _TImage >
    _TFilter;

  // Configure filter
  _TFilter* filter = this->_CreateITK< _TFilter >( );
  filter->SetImage( image );
  filter->SetLowerThreshold( this->m_Parameters.GetReal( "LowerThreshold" ) );
  filter->SetUpperThreshold( this->m_Parameters.GetReal( "UpperThreshold" ) );
  filter->Compute( );

  // Create output
  auto reg = filter->GetRegion( );
  auto bb = this->GetOutput< cpPlugins::DataObjects::BoundingBox >( "Output" );
  typename _TImage::PointType p0, p1;
  image->TransformIndexToPhysicalPoint( reg.GetIndex( ), p0 );
  image->TransformIndexToPhysicalPoint( reg.GetIndex( ) + reg.GetSize( ), p1 );
  bb->SetMinimum( p0 );
  bb->SetMaximum( p1 );
}

// eof - $RCSfile$