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Gnuplot.h  view on Meta::CPAN

  gradient_struct *gradient;

  /* the used color model: RGB, HSV, XYZ, etc. */
  int cmodel;  
  
  /* Three mapping function for gray->RGB/HSV/XYZ/etc. mapping
   * used if colorMode == SMPAL_COLOR_MODE_FUNCTIONS */
  struct udft_entry Afunc;  /* R for RGB, H for HSV, C for CMY, ... */
  struct udft_entry Bfunc;  /* G for RGB, S for HSV, M for CMY, ... */
  struct udft_entry Cfunc;  /* B for RGB, V for HSV, Y for CMY, ... */

  /* gamma for gray scale palettes only */
  double gamma;
} t_sm_palette;

/* a point (with integer coordinates) for use in polygon drawing */
typedef struct {
    unsigned int x, y;
#ifdef EXTENDED_COLOR_SPECS
    double z;
    colorspec_t spec;
#endif
} gpiPoint;

typedef struct TERMENTRY {
    const char *name;
#ifdef WIN16
    const char GPFAR description[80];  /* to make text go in FAR segment */
#else
    const char *description;
#endif
    unsigned int xmax,ymax,v_char,h_char,v_tic,h_tic;

    void (*options) __PROTO((void));
    void (*init) __PROTO((void));
    void (*reset) __PROTO((void));
    void (*text) __PROTO((void));
    int (*scale) __PROTO((double, double));
    void (*graphics) __PROTO((void));
    void (*move) __PROTO((unsigned int, unsigned int));
    void (*vector) __PROTO((unsigned int, unsigned int));
    void (*linetype) __PROTO((int));
    void (*put_text) __PROTO((unsigned int, unsigned int, const char*));
    /* the following are optional. set term ensures they are not NULL */
    int (*text_angle) __PROTO((int));
    int (*justify_text) __PROTO((enum JUSTIFY));
    void (*point) __PROTO((unsigned int, unsigned int,int));
    void (*arrow) __PROTO((unsigned int, unsigned int, unsigned int, unsigned int, TBOOLEAN));
    int (*set_font) __PROTO((const char *font));
    void (*pointsize) __PROTO((double)); /* change pointsize */
    int flags;
    void (*suspend) __PROTO((void)); /* called after one plot of multiplot */
    void (*resume)  __PROTO((void)); /* called before plots of multiplot */
    void (*fillbox) __PROTO((int, unsigned int, unsigned int, unsigned int, unsigned int)); /* clear in multiplot mode */
    void (*linewidth) __PROTO((double linewidth));
#ifdef USE_MOUSE
    int (*waitforinput) __PROTO((void));     /* used for mouse input */
    void (*put_tmptext) __PROTO((int, const char []));   /* draws temporary text; int determines where: 0=statusline, 1,2: at corners of zoom box, with \r separating text above and below the point */
    void (*set_ruler) __PROTO((int, int));    /* set ruler location; x<0 switches ruler off */
    void (*set_cursor) __PROTO((int, int, int));   /* set cursor style and corner of rubber band */
    void (*set_clipboard) __PROTO((const char[]));  /* write text into cut&paste buffer (clipboard) */
#endif
#ifdef PM3D
    int (*make_palette) __PROTO((t_sm_palette *palette));
    /* 1. if palette==NULL, then return nice/suitable
       maximal number of colours supported by this terminal.
       Returns 0 if it can make colours without palette (like 
       postscript).
       2. if palette!=NULL, then allocate its own palette
       return value is undefined
       3. available: some negative values of max_colors for whatever 
       can be useful
     */
    void (*previous_palette) __PROTO((void));  
    /* release the palette that the above routine allocated and get 
       back the palette that was active before.
       Some terminals, like displays, may draw parts of the figure
       using their own palette. Those terminals that possess only 
       one palette for the whole plot don't need this routine.
     */

    void (*set_color) __PROTO((double gray));
    /* gray is from [0;1], terminal uses its palette or another way
       to transform in into gray or r,g,b
       This routine (for each terminal separately) remembers or not
       this colour so that it can apply it for the subsequent drawings
     */
    void (*filled_polygon) __PROTO((int points, gpiPoint *corners));
#endif
} TERMENTRY;
#else
struct TERMENTRY {
        char *name;
#if defined(_Windows) && !defined(WIN32)
        char GPFAR description[80];     /* to make text go in FAR segment */
#else
        char *description;
#endif
        unsigned int xmax,ymax,v_char,h_char,v_tic,h_tic;
        FUNC_PTR options,init,reset,text,scale,graphics,move,vector,linetype,
                put_text,text_angle,justify_text,point,arrow,set_font,
		pointsize;
	int flags;
        FUNC_PTR suspend,resume,fillbox,linewidth;
};
#endif

#ifdef _Windows
#  define termentry TERMENTRY far
#else
#  define termentry TERMENTRY
#endif

extern struct termentry *term;

#ifndef GNUPLOT_NO_CODE_EMIT
struct termentry *term;
#endif /* !GNUPLOT_NO_CODE_EMIT */

#define RETVOID
#define RETINT , 1