#ifndef drg_h
#define drg_h

/*  $Id: drg.h,v 1.21 2014/03/12 22:14:50 dkl Exp $  */

#include <X11/Xlib.h>
#include <X11/Xmd.h>
#include <X11/XWDFile.h>
#include <stdio.h>

#include "carto.h"

#define MAXLN 512			// longest line of input text we allow
#define DEF_PAD 0
#define GRAINS 15		// this results in 30 second chunks
#define STRAY_PIXEL_THRESHHOLD 5

// TODO:  purge this
#define FUDGE 128

#define TOPOROOT "/topo"
#define GRAIN_IN_DEGREES (1.0/(8.0*(double)GRAINS))		// one grain in degrees
#define DEFAULT_BORDER "/topo/images/border"		
#define CREDIT_FONT "/topo/etc/fonts/100dpi/timB08.bdf"
#define USER_FONT "/topo/etc/fonts/100dpi/helvR12.bdf"
#define INFO_FONT "/topo/etc/fonts/100dpi/helvR08.bdf"

#define ERROR_CANT_MALLOC_IMAGE_STRING "Can't malloc image buffer"


#define min(x,y) (((x) < (y)) ? (x) : (y))
#define max(x,y) (((x) > (y)) ? (x) : (y))

typedef struct { int ulx, uly, llx, lly, urx, ury, lrx, lry,
		 xmin, xmax, ymin, ymax; 
} poly;

typedef struct { int x1, x2, y1, y2; } rect;

typedef 	unsigned long 	Pixel;
typedef 	char *	 	charp;

class drg { 
   public:
 	   //drg ();	
 	   drg (const char *, int dpi, char *args);	
 	   //drg (const char *, int dpi, int proj, int datum);	
	   drg (const char *nm=NULL, int dp=250, int p=0, int da=0, int e=0);	
	   drg (drg *, drg *);	// does not duplicate image 
	   drg (const char *, int );	// main constructor
	   drg (drg *);			// does not duplicate image 
	   drg (const char *);		// for use with images which have no DPI
	   ~drg ();

	   drg 	*BustOut (char *newName);	// busts out a child
	   void 		Log(char *);		// write message to the logfile
	   int 		Use4();			// make 4-bit data
	   int 		Use8();			// make 8-bit data
	   int 		ClipTo (int, int, int, int);
	   int 		Trim ();
	   int 		WriteCorners ();
	   int 		ReadCorners ();
	   int 		ReadTFW ();
	   int 		WriteTFW ();
	   int 		ReadXWD (int);
	   int 		WriteXWD ();
	   int 		ReadDRG (char *);
	   int 		WriteDRG ();
	   int 		ScanCmap();
	   int 		TrimCmap();
	   int 		ShiftCmap();
	   int 		SquishCmap();
	   int 		AddColor(XColor *);
	   int 		HasColor(XColor *);
	   void 		AddColormap(drg *ofMe);
	   void 		MergeColormap(drg *intoMe);
	   void 		MapTo(drg *toMe);
	   int 		Shrink (int thresh, int pad);
	   int 		Bbox (int stray_threshhold, int padbbox);
	   void 		DrawBorder (const char *borderName);
	   int 		DrawLines (char *);
	   void 		DrawLine (int, int, int, int, unsigned long);
	   int 		AddImage (int, int, const char *);
	   int 		PatchAt (int, int, const char *);
	   int 		PatchCenteredAt (int, int, const char *);
	   int 		PatchAtLatLong (double, double, const char *);
	   int 		PatchCenteredAtLatLong (double, double, const char *);
	   void 		BreakDown();
	   void 		SquareUp();
	   void 		MakeBigger(int);
	   void 		MakeThumbnail();   // make me a thumbnail of myself
	   void 		AddThumbnail(int, int);
	   void 		AddCorners();
	   void 		AddLegend();
	   void 		AddDecorations(char *);
	   void 		AddComment(char *);
	   void 		AddLabel(char *, int x, int y);
	   void 		AddCollar(char *);
	   void 		AddCredit();
	   void 		AddSerial();
	   void 		AddSeries();
	   void 		AddNotice();
	   void 		AddInfo1();
	   void 		AddInfo2();
	   void 		AddTitle();
	   void 		AddTickMarks();
	   void 		AddMapNames();
	   void 		AddTicksToTrimmed();
	   unsigned 	ImageSize ();
	   void 		DrawString(char *text, int x, int y, int alignment);
	   void 		DrawString(char *text, int x, int y, int alignment, char *font);
	   //inline Pixel 	GetPixel (register int x, register int y);
	   //inline void 	PutPixel (register int x, register int y, Pixel pix);
	   Pixel 	GetPixel (register int x, register int y);
	   void 		PutPixel (register int x, register int y, Pixel pix);
   
	   void 		SetName (char *);
inline  void 		SetCredit (char *cr) {credit = cr;};
inline  void 		SetComment (char *co) {comment = co;};
inline  void 		SetNotice (char *no) {notice = no;};
inline  void 		SetInfo1 (char *i1) {info1 = i1;};
inline  void 		SetInfo2 (char *i2) {info2 = i2;};
inline  void 		SetSeries (char *se) {series = se;};
inline  void 		SetSerial (char *sl) {serial = sl;};
inline  void 		SetLegend (char *le) {legend = le;};
inline  void 		SetTitle (char *ti) {title = ti;};
inline  void 		SetState (char *st) {state = st;};
inline  void 		SetDate (char *da) {date = da;};
	void 		SetGzip (Bool setting) {writeGzipped = setting;};
	void 		SetDPI (int setting) {dpi = setting;};
	int 		GetDPI () {return dpi;};
	void 		SetHiLat (double lat) { hiLat = lat;} ;
	void 		SetLowLat (double lat) { lowLat = lat;} ;
	void 		SetHiLong (double lon) { hiLong = lon;} ;
	void 		SetLowLong (double lon) { lowLong = lon;} ;
	int 		GetX (double, double);
	int 		GetY (double, double);
	double 		GetLatOf (int, int);
	double 		GetLongOf (int, int);
	double 		GetLowLat () { return lowLat; } ;
	double 		GetLowLong () { return lowLong; } ;
	double 		GetHiLat () { return hiLat; } ;
	double 		GetHiLong () { return hiLong; } ;
inline 	int 		GetCollar () { return collar; } ;
inline 	int 		GetULX () { return ulx; };
inline 	int 		GetULY () { return uly; };
	int 		GetURX () { return urx; };
	int 		GetURY () { return ury; };
	int 		GetLRX () { return lrx; };
	int 		GetLRY () { return lry; };
	int 		GetLLX () { return llx; };
	int 		GetLLY () { return lly; };
	double 		GetXoffset () { return xoffset; } ;
	void 		SetXoffset (double xo) { xoffset = xo;} ;
	double 		GetYoffset () { return yoffset; } ;
	void 		SetYoffset (double yo) { yoffset = yo;} ;
	void 		SetXscale (double xs) { xscale = xs;} ;
	void 		SetYscale (double ys) { yscale = ys;} ;
	int 		GetClosestColor (int r, int g, int b);
	int 		GetFarthestColor (int r, int g, int b);
	int 		GetProjection () { return proj; };
	int 		GetDatum () { return datum; };

	int 		IsOnThisMap (double, double);
	int 		IsOnThisImage (double, double);
	void 		Error (const char *);

	// from xwd.c
	static void 	_swapshort (char *, unsigned);
	static void 	_swaplong (char *, unsigned);

	char 		*name, *path, *indx, *toporoot;
	XImage 		*image;
	XWDFileHeader 	*header;
	XColor 		*colors;
	int 		ncolors;
	poly 		*neat;		//  the corners of the map
	Bool 		debug, verbose, writeGzipped, logging;
	carto  		*cart;			//  the projection information 
	unsigned long	whitePixel, blackPixel;

	//  the coordinates of the map corners
 	int 		ulx, uly, llx, lly, urx, ury, lrx, lry;	
	int 		collar;
	int 		dpi, orig_dpi;

 	//  decorations
	char 		*title, *state, *credit, *notice, *series;
	char 		*info1, *legend, *comment, *serial, *date, *info2;

    private:
	void 		dataInit ();			// common to constructors
	void 		rootInit ();			// common to constructors
	void 		nameInit (const char *);			// common to constructors
	void 		mapInit ();	// common to constructors
	int 		proj;						// the projection AEA or UTM
	int 		datum;					// the datum   NAD27, NAD83
	int 		ellips;					// the ellipsoid   clrk66, WGS84
	rect 		*nonwhite;				//  holds minimum nonwhite rect 
	Bool 		Read (char *ptr, int size, int nitems, FILE *stream);
	double	xscale, yscale, xoffset, yoffset;
	double	lowLat, hiLat, lowLong, hiLong;
	double 	dpi_scale;				//  scale of dpi to original

	void 		DrawSteepLine (int, int, int, int, unsigned long);
	void 		DrawShallowLine (int, int, int, int, unsigned long);
};

#define drgError(foo) { fprintf (stderr,foo); exit(1) }

#define sameColor(c1, c2) ((c1.red == c2.red) && \
			    (c1.green == c2.green) && \
			    (c1.blue == c2.blue))

#endif