ImageImporter.h

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#ifndef ImageImporter_h
#define ImageImporter_h

namespace Isis {
  class Buffer;
  class Cube;
  class CubeAttributeOutput;
  class FileName;
  class ImageImporter;
  class PvlGroup;

  class ImageImporter {
    public:
      ImageImporter(FileName inputName);
      virtual ~ImageImporter();

      void operator()(Buffer &out) const;

      Cube * import(FileName outputName);
      Cube * import(FileName outputName, CubeAttributeOutput &att);

      void setNullRange(double min, double max);
      void setLrsRange(double min, double max);
      void setHrsRange(double min, double max);

      void setSamples(int s);
      void setLines(int l);
      void setBands(int b);

      int samples() const;
      int lines() const;
      int bands() const;

      FileName filename() const;


      virtual PvlGroup convertProjection() const;

      virtual bool isGrayscale() const = 0;

      virtual bool isRgb() const = 0;

      virtual bool isArgb() const = 0;

      static ImageImporter * fromFileName(FileName inputName);

    protected:
      typedef int (ImageImporter::*GetChannelMethod)(int pixel) const;

      Cube * createOutput(FileName outputName, CubeAttributeOutput &att);

      void setDefaultBands();
      double testSpecial(double pixel) const;

      virtual GetChannelMethod getBandChannel(int band) const;
      virtual int convertRgbToGray(int pixel) const;

      virtual void updateRawBuffer(int line, int band) const = 0;

      virtual int getPixel(int s, int l) const = 0;

      virtual int getGray(int pixel) const = 0;

      virtual int getRed(int pixel) const = 0;

      virtual int getGreen(int pixel) const = 0;

      virtual int getBlue(int pixel) const = 0;

      virtual int getAlpha(int pixel) const = 0;

    private:
      FileName *m_inputName;

      Cube *m_outCube;

      int m_samples;

      int m_lines;

      int m_bands;

      double m_nullMin;

      double m_nullMax;

      double m_lrsMin;

      double m_lrsMax;

      double m_hrsMin;

      double m_hrsMax;
  };
};


#endif