// =========================================================================
// @author Leonardo Florez Valencia
// @email florez-l@javeriana.edu.co
// =========================================================================
#ifndef __fpa__Filters__Image__Algorithm__h__
#define __fpa__Filters__Image__Algorithm__h__

#include <itkImage.h>

namespace fpa
{
  namespace Filters
  {
    namespace Image
    {
      /**
       */
      template< class _TBaseAlgorithm >
      class Algorithm
        : public _TBaseAlgorithm
      {
      public:
        typedef _TBaseAlgorithm TBaseAlgorithm;
        typedef typename TBaseAlgorithm::TTraits TTraits;
        fpaTraitsMacro( typename, TTraits );

        typedef TBaseAlgorithm                  Superclass;
        typedef Algorithm                       Self;
        typedef itk::SmartPointer< Self >       Pointer;
        typedef itk::SmartPointer< const Self > ConstPointer;

        typedef typename TTraits::TInputImage  TInputImage;
        typedef typename TTraits::TOutputImage TOutputImage;
        typedef itk::Image< TMark, Self::Dimension > TMarksImage;

      public:
        itkTypeMacro( fpa::Filters::Image::Algorithm, TBaseAlgorithm );

        itkGetConstMacro( NeighborhoodOrder, unsigned int );
        itkSetMacro( NeighborhoodOrder, unsigned int );

        fpaFilterOutputMacro( Marks, TMarksImage );

      protected:
        Algorithm( );
        virtual ~Algorithm( );

        virtual void _ConfigureOutputs( ) override;
        virtual TInputValue _GetInputValue( const TVertex& v ) const override;
        virtual TOutputValue _GetOutputValue( const TVertex& v ) const override;
        virtual TNeighborhood _GetNeighbors( const TVertex& v ) const override;
        virtual void _UpdateOutputValue( TNode& n ) override;
        virtual unsigned long _GetMark( const TVertex& v ) const override;
        virtual bool _IsMarked( const TVertex& v ) const override;
        virtual void _Mark( const TVertex& v, unsigned long m ) override;

      private:
        // Purposely not implemented.
        Algorithm( const Self& other );
        Self& operator=( const Self& other );

      protected:
        unsigned int m_MarksIdx;
        unsigned int m_NeighborhoodOrder;
      };

    } // ecapseman

  } // ecapseman

} // ecapseman

#ifndef ITK_MANUAL_INSTANTIATION
#  include <fpa/Filters/Image/Algorithm.hxx>
#endif // ITK_MANUAL_INSTANTIATION
#endif // __fpa__Filters__Image__Algorithm__h__
// eof - $RCSfile$