// -------------------------------------------------------------------------
// @author Leonardo Florez-Valencia (florez-l@javeriana.edu.co)
// -------------------------------------------------------------------------

#ifndef __CPEXTENSIONS__ALGORITHMS__REGIONOFINTERESTIMAGECALCULATOR__H__
#define __CPEXTENSIONS__ALGORITHMS__REGIONOFINTERESTIMAGECALCULATOR__H__

#include <itkObject.h>
#include <itkObjectFactory.h>

namespace cpExtensions
{
  namespace Algorithms
  {
    /**
     */
    template< class _TImage >
    class RegionOfInterestImageCalculator
      : public itk::Object
    {
    public:
      // Basic types
      typedef RegionOfInterestImageCalculator Self;
      typedef itk::Object                     Superclass;
      typedef itk::SmartPointer< Self >       Pointer;
      typedef itk::SmartPointer< const Self > ConstPointer;

      typedef _TImage TImage;
      typedef typename _TImage::IndexType TIndex;
      typedef typename _TImage::PixelType TPixel;

    public:
      itkNewMacro( Self );
      itkTypeMacro( RegionOfInterestImageCalculator, itkObject );

      itkGetConstObjectMacro( Image, _TImage );
      itkGetConstMacro( BackgroundValue, TPixel );
      itkGetConstMacro( Minimum, TIndex );
      itkGetConstMacro( Maximum, TIndex );

      itkSetConstObjectMacro( Image, _TImage );
      itkSetMacro( BackgroundValue, TPixel );

    public:
      void Compute( );
      
    protected:
      RegionOfInterestImageCalculator( );
      virtual ~RegionOfInterestImageCalculator( );

    private:
      // Purposely not implemented
      RegionOfInterestImageCalculator( const Self& );
      void operator=( const Self& );

    protected:
      typename _TImage::ConstPointer m_Image;
      TPixel m_BackgroundValue;
      TIndex m_Minimum;
      TIndex m_Maximum;
    };

  } // ecapseman

} // ecapseman

#ifndef ITK_MANUAL_INSTANTIATION
#  include <cpExtensions/Algorithms/RegionOfInterestImageCalculator.hxx>
#endif // ITK_MANUAL_INSTANTIATION

#endif // __CPEXTENSIONS__ALGORITHMS__REGIONOFINTERESTIMAGECALCULATOR__H__

// eof - $RCSfile$