ossimBandSeparateHandler.h

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//**************************************************************************************************
//
// License:  MIT
// 
// See LICENSE.txt file in the top level directory for more details.
//
// Author: Oscar Kramer
// 
// Description:
//
// Image handler used when the multi-band image has each band represented by a different disk file.
// This is the case for some Ikonos imagery. 
//
//**************************************************************************************************
// $Id: ossimBandSeparateHandler.h 2644 2011-05-26 15:20:11Z oscar.kramer $
#ifndef ossimBandSeparateHandler_HEADER
#define ossimBandSeparateHandler_HEADER

#include <ossim/imaging/ossimImageHandler.h>
#include <ossim/base/ossimRefPtr.h>
#include <ossim/imaging/ossimBandMergeSource.h>

class OSSIMDLLEXPORT ossimBandSeparateHandler : public ossimImageHandler
{
public:
   ossimBandSeparateHandler();
   
   virtual ~ossimBandSeparateHandler();
   
   virtual bool open();

   virtual void close();

   virtual bool isOpen()const;

   virtual ossim_uint32 getNumberOfInputBands() const;
   
   virtual ossim_uint32 getNumberOfLines(ossim_uint32 resLevel = 0) const;

   virtual ossim_uint32 getNumberOfSamples(ossim_uint32 resLevel = 0) const;
   
   virtual bool saveState(ossimKeywordlist& kwl, const char* prefix=0)const;

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

   virtual ossimRefPtr<ossimImageData> getTile(const ossimIrect& rect, ossim_uint32 resLevel);

   virtual ossimScalarType getOutputScalarType() const;

   virtual bool canConnectMyOutputTo(ossim_int32 index, const ossimConnectableObject* obj);

   virtual ossimRefPtr<ossimImageGeometry> getImageGeometry();

   virtual ossim_uint32 getImageTileWidth()  const { return 0; }
   virtual ossim_uint32 getImageTileHeight() const { return 0; }

protected:
   virtual void getBandFileNames(vector<ossimFilename>& file_names);

  vector<ossimRefPtr<ossimImageHandler> > m_bandFiles;
  ossimRefPtr<ossimBandMergeSource>       m_mergeSource;

TYPE_DATA
};

#endif /* #ifndef ossimBandSeparateHandler_HEADER */