//---------------------------------------------------------------------------
#ifndef ImageMatrixH
#define ImageMatrixH
//---------------------------------------------------------------------------
#include "global.h"
#include "cgi-draw.h"

#ifdef FITS
  #define COLOR_TYPE unsigned short
#else
  #define COLOR_TYPE byte
#endif

typedef struct PIXEL_ITEM
{  short x;
   short y;
   struct PIXEL_ITEM *p_next;
}pixel_item;

class ImageMatrix
{
  private:
  public:
   COLOR_TYPE **data;                                 /* data of the colors                    */
   COLOR_TYPE **starspix;                             /* pixels identified as stars            */
   long width,height;                                 /* width and height of the picture       */
   char name[256];                                    /* the file name of the image            */
   double exposure_time;                              /* the exposure time of the picture      */
   double JulianDate;                                 /* the julian date when the picture was taken */
   COLOR_TYPE AvgColor;                               /* average color of the image background */
   star_point *baseline_peaks;                        /* a data structure that hold the baseline peaks points from an external file */
   int LoadImage(BITMAP bitmap,short inverted);       /* load a bitmap into the ImageMatrix data structure */
   int LoadFits(char *fits_file_name);                /* load a fits file                      */
   int SaveFits(char *fits_file_name);                /* save the data to a fits file          */
   int GetPicture(BITMAP h_bitmap);                   /* load a fits image into a bitmap image */
   long GetStarsPoints(star_point *star_points,stripe_point *stripes,double max_dist);
   long FindArea(short x,short y,short value,short *min_x,short *max_x,short *min_y,short *max_y);
   pixel_item *AddMarkPix(pixel_item *p_tail,short x,short y,long *counter);
   unsigned short IsStar(short x,short y);
   long GetStarsBackground(long x,long y);
   void GetStarSurface(long x,long y,long base_x,long base_y,unsigned short background,unsigned short sqrt_background,unsigned short *pixel_count,unsigned short *edge_count,unsigned short *sum_edge,unsigned short *maximum_edge,COLOR_TYPE *pixel_counts);
   long GetStarsColor(long x,long y,short top_pix_count,unsigned short background);
   double ClosestStar(long x,long y);
   void FreeImage();
   int IsCloudArea(int x, int y);
   void DrawLabels(BITMAP bitmap,short resize,short right, short below, FONT font);
   int LoadBaselinePeaks(char *filename);
   void FindClouds(BITMAP bitmap);
   void FindClouds2(BITMAP bitmap,star_point *star_point,star_point *baseline_peaks); /* paint the clouded areas in the image */
   int FindClouds3(site_info *location,star_point* StarPoints,char *baseline_image_name,BITMAP bitmap,short find_changes);
   long AverageMatrix(ImageMatrix *matrix, double weight);
   long IsClear(star_point *star_points, double clear_threshold);
   void ClearBackground(char *input_image,BITMAP bitmap,double max_dist);
   unsigned short DarkestPixel(double dist_from_center);
   void CompareBackground(BITMAP bitmap,char *baseline_image_name,double max_dist);
   long MarkUnknownStars(star_point *star_points,stripe_point *stripes,char *filename,BITMAP bitmap);
   int unwrap(BITMAP bitmap,double scale);
};

#endif