spatmod/imagefiltertile.h

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#ifndef  INC_SPATMOD_IMAGEFILTERTILE_H
#define  INC_SPATMOD_IMAGEFILTERTILE_H

#ifndef  INC_SPATMOD_IMAGEFILTER_H
#include <spatmod/imagefilter.h>
#endif

#ifndef  INC_SPATMOD_IMAGESECTION_H
#include <spatmod/imagesection.h>
#endif

namespace SPATMOD {
namespace IMAGE {

//=====================================================================================================================

class FILTER_TILE : public FILTER {
   public:

      explicit FILTER_TILE (
         const DIMENSIONS& Dimensions,          
         const GEOREFERENCE *pGeoreference = 0  
         );

      // Destructor.
      virtual ~FILTER_TILE ();

      ERRVALUE SetTile (
         UINT16 TileColumn,                  
         UINT16 TileRow,                     
         STAGE *pInputStage,                 
         bool TakeOwnership                  
         );

   private:
      #ifndef GENERATING_DOXYGEN_OUTPUT

      class INPUTLIST;

      INPUTLIST *m_pTileListLRU;
      DIMENSIONS *m_ZoomDimensions;
      SIMPLE_ARRAY<DOUBLE> m_ZoomsAllowed;
      SECTION_ITERATOR m_TgtIterator;
      int m_ZoomIndex;
      INT32 m_MaxListSizeLRU;

      ERRVALUE BeginIteratorTileStage (INT32 TileColumn, INT32 TileRow, SECTION_ITERATOR& itTileStage) const;
      void ComputeMaxTilesPull (const SECTION_ITERATOR& TgtIterator, INT32& MaxTileColumnsPull, INT32& MaxTileRowsPull) const;
      ERRVALUE ComputeZoomDimensions ();
      ERRVALUE RemoveLastFromLRU ();

      // BASE/STAGE/FILTER overrides.
      virtual ERRVALUE v_ComputeSampleStats (STAT_UNIVARIATE *SampleStatsArray, STATSVALIDITY StatsValidity);
      virtual ERRVALUE v_GetDimensions (DIMENSIONS& dimensions, double zoom) const;
      virtual ERRVALUE v_GetGeoreference (GEOREFERENCE& georeference, double zoom) const;
      virtual ZOOMABILITY v_GetZoomAbility (SIMPLE_ARRAY<double>& ZoomsAllowed) const;
      virtual ERRVALUE v_Initialize ();
      virtual ERRVALUE v_PullBegin (const SECTION_ITERATOR& iterator);
      virtual ERRVALUE v_PullEnd ();
      virtual ERRVALUE v_PullSubSection (const SECTION& SubSection, BUFFER& buffer);
      virtual float v_QueryIterator (const SECTION_ITERATOR& iterator) const;

      // Unimplemented
      FILTER_TILE (const FILTER_TILE&);
      FILTER_TILE& operator= (const FILTER_TILE&);
      #endif // GENERATING_DOXYGEN_OUTPUT

   };

//=====================================================================================================================

}  // End namespace IMAGE
}  // End namespace SPATMOD

#endif   // INC_SPATMOD_IMAGEFILTERTILE_H

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