triskele/include/IImage.hpp

#ifndef _OTB_TRISKELE_I_IMAGE_HPP
#define _OTB_TRISKELE_I_IMAGE_HPP

#include <string>
#include <iostream>

#include <gdal/gdal_priv.h>

#include "triskeleBase.hpp"
#include "triskeleGdalGetType.hpp"

namespace otb {
  namespace triskele {

    /** Interface Image */
    template<typename PixelT>
    class IImage {
    public:
      IImage (const std::string &imageFilename) : filename (imageFilename), read (false) {}
      ~IImage () { close(); if (pixels) delete[] pixels; pixels = nullptr; }

      PixelT *getPixels () { return pixels; }

      PixelT getValue (const DimImg &id) const { return pixels[id]; }
      PixelT getValue (const Point &point) const { return pixels[pointToId (size, point)]; }

      const std::string &getFilename () const { return filename; }
      DimImg getPixelsCount () const { return (DimImg)size.width * (DimImg)size.height; }
      const Size &getSize () const { return size; }
      GDALDataType getDataType () const { return dataType; }

      void readImage (const Point &cropOrig, const Size &cropSize); 
      void readImage () { readImage (Point(), size); }

      void close ();

      const bool &isRead () const { return read; }
      bool isEmpty () const { return getPixelsCount () == 0; }

    private:
      IImage (const IImage &o) = delete;
      IImage &operator= (const IImage&) = delete;
    
    private:
      static uint32_t gdalCount;

      std::string filename;
      Size size;
      GDALDataType dataType;
      GDALDataset *gdalInputDataset;
      PixelT *pixels;
      bool read;
    };
    
#include "IImage.tpp"

  } // triskele
} // otb

#endif // _OTB_TRISKELE_I_IMAGE_HPP