ossimTiledImagePatch.h

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//---
// License: MIT
//
// Author: David Burken
// 
// Description: See class declaration below.
// 
//---
// $Id$

#ifndef ossimTiledImagePatch_HEADER
#define ossimTiledImagePatch_HEADER 1

#include <ossim/imaging/ossimImageSourceFilter.h>
#include <ossim/base/ossimConstants.h>
#include <ossim/base/ossimIpt.h>
#include <ossim/imaging/ossimImageData.h>
#include <vector>

class ossimIrect;

class OSSIMDLLEXPORT ossimTiledImagePatch : public ossimImageSourceFilter
{
public:

   ossimTiledImagePatch();

   virtual void initialize();

   virtual ossimRefPtr<ossimImageData> getTile(const ossimIrect& tileRect,
                                               ossim_uint32 resLevel=0);

   virtual bool getTile(ossimImageData* result, ossim_uint32 resLevel=0);
   
   virtual ossimString getClassName() const;

   virtual ossimString getLongName()  const;

   virtual ossimString getShortName() const; 
   
   const ossimIpt& getInputTileSize() const;

   bool setInputTileSize( const ossimIpt& tileSize );

   virtual bool loadState(const ossimKeywordlist& kwl,
                          const char* prefix=0);
   virtual bool saveState(ossimKeywordlist& kwl,
                          const char* prefix=0)const;

protected:

   virtual ~ossimTiledImagePatch();

private:

   void allocateTile();

   bool isValidRLevel(ossim_uint32 resLevel) const;
   
   ossimTiledImagePatch(const ossimTiledImagePatch&);

   ossimTiledImagePatch& operator=(const ossimTiledImagePatch&);
   
   ossimRefPtr<ossimImageData> m_tile;
   ossimIpt                    m_inputTileSize;

TYPE_DATA
};

#endif /* #ifndef ossimTiledImagePatch_HEADER */