post.h

   1 /* predefined array limits */
   2 #define PATHLEN         1024    /* path length */
   3 #define NFONTS          32      /* number of fonts */
   4 #define NGLYPHS         1024    /* glyphs in fonts */
   5 #define NLIGS           32      /* number of font ligatures */
   6 #define NKERNS          512     /* number of font pairwise kerning pairs */
   7 #define FNLEN           64      /* font name length */
   8 #define GNLEN           32      /* glyph name length */
   9 #define ILNLEN          1000    /* line limit of input files */
  10 #define LNLEN           4000    /* line buffer length (ren.c/out.c) */
  11 #define LIGLEN          4       /* length of ligatures */
  12
  13 #define MIN(a, b)       ((a) < (b) ? (a) : (b))
  14 #define MAX(a, b)       ((a) < (b) ? (b) : (a))
  15 #define LEN(a)          (sizeof(a) / sizeof((a)[0]))
  16
  17 /* device related variables */
  18 extern int dev_res;
  19 extern int dev_uwid;
  20 extern int dev_hor;
  21 extern int dev_ver;
  22
  23 struct glyph {
  24         char name[GNLEN];       /* name of the glyph */
  25         char id[GNLEN];         /* device-dependent glyph identifier */
  26         struct font *font;      /* glyph font */
  27         int wid;                /* character width */
  28         int type;               /* character type; ascender/descender */
  29 };
  30
  31 struct font {
  32         char name[FNLEN];
  33         char fontname[FNLEN];
  34         struct glyph glyphs[NGLYPHS];
  35         int nglyphs;
  36         int spacewid;
  37         int special;
  38         char c[NGLYPHS][FNLEN];         /* character names in charset */
  39         struct glyph *g[NGLYPHS];       /* character glyphs in charset */
  40         int n;                          /* number of characters in charset */
  41         /* font ligatures */
  42         char lig[NLIGS][LIGLEN * GNLEN];
  43         int nlig;
  44         /* glyph list based on the first character of glyph names */
  45         int head[256];                  /* glyph list head */
  46         int next[NGLYPHS];              /* next item in glyph list */
  47         /* kerning pair list per glyph */
  48         int knhead[NGLYPHS];            /* kerning pairs of glyphs[] */
  49         int knnext[NKERNS];             /* next item in knhead[] list */
  50         int knpair[NKERNS];             /* kerning pair 2nd glyphs */
  51         int knval[NKERNS];              /* font pairwise kerning value */
  52         int knn;                        /* number of kerning pairs */
  53 };
  54
  55 /* output device functions */
  56 int dev_open(char *path);
  57 void dev_close(void);
  58 int dev_mnt(int pos, char *id, char *name);
  59 struct font *dev_font(int fn);
  60 int dev_fontid(struct font *fn);
  61 int charwid(int wid, int sz);
  62 struct glyph *dev_glyph(char *c, int fn);
  63 struct glyph *dev_glyph_byid(char *id, int fn);
  64
  65 /* font-related functions */
  66 struct font *font_open(char *path);
  67 void font_close(struct font *fn);
  68 struct glyph *font_glyph(struct font *fn, char *id);
  69 struct glyph *font_find(struct font *fn, char *name);
  70 int font_lig(struct font *fn, char **c, int n);
  71 int font_kern(struct font *fn, char *c1, char *c2);
  72
  73 /* output functions */
  74 void out(char *s, ...);
  75 void outc(char *s);
  76 void outh(int h);
  77 void outv(int v);
  78 void outrel(int h, int v);
  79 void outfont(int f);
  80 void outsize(int s);
  81 void outcolor(int c);
  82 void outpage(void);
  83 void outmnt(int f);
  84 extern char o_fonts[];
  85
  86 void drawbeg(char *s);
  87 void drawend(char *s);
  88 void drawl(int h, int v);
  89 void drawc(int c);
  90 void drawe(int h, int v);
  91 void drawa(int h1, int v1, int h2, int v2);
  92 void draws(int h1, int v1, int h2, int v2);
  93
  94 /* postscript functions */
  95 void ps_header(void);
  96 void ps_trailer(int pages, char *fonts);
  97 void ps_pagebeg(int n);
  98 void ps_pageend(int n);
  99
 100 /* colors */
 101 #define CLR_R(c)                (((c) >> 16) & 0xff)
 102 #define CLR_G(c)                (((c) >> 8) & 0xff)
 103 #define CLR_B(c)                ((c) & 0xff)
 104 #define CLR_RGB(r, g, b)        (((r) << 16) | ((g) << 8) | (b))
 105
 106 char *clr_str(int c);
 107 int clr_get(char *s);