spatmod/imagesourceregion.h

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#ifndef  INC_SPATMOD_IMAGESOURCEREGION_H
#define  INC_SPATMOD_IMAGESOURCEREGION_H

#ifndef  INC_SPATMOD_IMAGESOURCE_H
#include <spatmod/imagesource.h>
#endif

#ifndef  INC_MI32_REGION2D_H
#include <mi32/region2d.h>
#endif


#ifndef GENERATING_DOXYGEN_OUTPUT
class TRANS2D_MAPGEN;
namespace RVC {
   class OBJITEM;
   }
#endif


namespace SPATMOD {
namespace IMAGE {

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

class SOURCE_REGION : public SOURCE {
   public:

      SOURCE_REGION (
         const REGION2D& Region,             
         const BASE &RefImage,               
         double MemoryMaxUsage = 4.0         
         );
         
      SOURCE_REGION (
         const REGION2D& Region,             
         const TRANS2D_MAPGEN& TransToCRS,   


         UINT32 TotalColumns,                
         UINT32 TotalRows,                   
         double MemoryMaxUsage = 4.0         
         );

      virtual ~SOURCE_REGION ();
      
      const LRECT2D& GetRegionExtents (
         ) const { return (m_RegionImageExtents); }

   private:
      #ifndef GENERATING_DOXYGEN_OUTPUT
      SOURCE *m_pCache;
      double m_MemoryMaxUsage;
      bool m_UseMemory;
      REGION2D m_Region;
      LRECT2D m_RegionImageExtents;
      RVC::OBJITEM *m_pObjItemTempRaster;

      // BASE overrides.
      virtual float v_QueryIterator (const SECTION_ITERATOR& iterator) const;

      // STAGE overrides.
      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);

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

   };

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

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

#endif   // INC_SPATMOD_IMAGESOURCEREGION_H

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