vpdf/fontcache.h

   1 #ifndef VPDF_FONTCACHE_H
   2 #define VPDF_FONTCACHE_H
   3
   4 /* custom fontconfig types */
   5
   6 #ifdef __cplusplus
   7 extern "C" {
   8 #endif
   9
  10 enum {
  11         FC_ETYPE_STRING = 1,
  12         FC_ETYPE_INTEGER,
  13         FC_ETYPE_POINTER
  14 };
  15
  16
  17 #define FC_WEIGHT_THIN              0
  18 #define FC_WEIGHT_EXTRALIGHT        40
  19 #define FC_WEIGHT_ULTRALIGHT        FC_WEIGHT_EXTRALIGHT
  20 #define FC_WEIGHT_LIGHT             50
  21 #define FC_WEIGHT_BOOK              75
  22 #define FC_WEIGHT_REGULAR           80
  23 #define FC_WEIGHT_NORMAL            FC_WEIGHT_REGULAR
  24 #define FC_WEIGHT_MEDIUM            100
  25 #define FC_WEIGHT_DEMIBOLD          180
  26 #define FC_WEIGHT_SEMIBOLD          FC_WEIGHT_DEMIBOLD
  27 #define FC_WEIGHT_BOLD              200
  28 #define FC_WEIGHT_EXTRABOLD         205
  29 #define FC_WEIGHT_ULTRABOLD         FC_WEIGHT_EXTRABOLD
  30 #define FC_WEIGHT_BLACK             210
  31 #define FC_WEIGHT_HEAVY             FC_WEIGHT_BLACK
  32 #define FC_WEIGHT_EXTRABLACK        215
  33 #define FC_WEIGHT_ULTRABLACK        FC_WEIGHT_EXTRABLACK
  34
  35 #define FC_SLANT_ROMAN              0
  36 #define FC_SLANT_ITALIC             100
  37 #define FC_SLANT_OBLIQUE            110
  38
  39 #define FC_WIDTH_ULTRACONDENSED     50
  40 #define FC_WIDTH_EXTRACONDENSED     63
  41 #define FC_WIDTH_CONDENSED          75
  42 #define FC_WIDTH_SEMICONDENSED      87
  43 #define FC_WIDTH_NORMAL             100
  44 #define FC_WIDTH_SEMIEXPANDED       113
  45 #define FC_WIDTH_EXPANDED           125
  46 #define FC_WIDTH_EXTRAEXPANDED      150
  47 #define FC_WIDTH_ULTRAEXPANDED      200
  48
  49 #define FC_PROPORTIONAL             0
  50 #define FC_DUAL                     90
  51 #define FC_MONO                     100
  52 #define FC_CHARCELL                 110
  53
  54 enum {
  55         FC_FAMILY = 0,
  56         //FC_FAMILYLANG,
  57         FC_FULLNAME,
  58         //FC_FULLNAMELANG,
  59         FC_STYLE,
  60         //FC_STYLELANG,
  61         FC_FILE,
  62         FC_INDEX, /* index of a face in font file */
  63         FC_WEIGHT,
  64         FC_WIDTH,
  65         FC_SLANT,
  66         //FC_DECORATIVE,
  67         //FC_CHARSET,
  68         FC_LANG,
  69         //FC_PROPORTIONAL,
  70         FC_SPACING,
  71         FC_SERIF,
  72         FC_LAST_CRITERIA,
  73 };
  74
  75 static int fcelementpriority[] = {
  76         99,
  77         //{FC_FAMILYLANG,       9},
  78         98,
  79         //{FC_FULLNAMELANG,     8},
  80         97,
  81         //{FC_STYLELANG,        7},
  82         100,
  83         0,
  84         96,
  85         95,
  86         94,
  87         //{FC_DECORATIVE,       93},
  88         //{FC_CHARSET,          6},
  89         92,
  90         //{FC_PROPORTIONAL,     91},
  91         90,
  92         89,
  93         0,
  94 };
  95
  96
  97 struct fontpattern
  98 {
  99         struct MinNode n;
 100         struct List entries;
 101 };
 102
 103 union patternvalue
 104 {
 105         int i;
 106         char *s;
 107         void *p;
 108 };
 109
 110 struct patternentry
 111 {
 112         struct MinNode n;
 113         int element;
 114         int type;
 115         int id;                                 /* multiple elements can be on the list */
 116         int excluding;                  /* for patterns used as match criteria */
 117         union patternvalue value;
 118 };
 119
 120 int fcPatternAddString(struct fontpattern *pat, int element, char *value);
 121 int fcPatternAddInteger(struct fontpattern *pat, int element, int value);
 122 int fcPatternAddExcludingInteger(struct fontpattern *pat, int element, int value);
 123 char *fcPatternGetString(struct fontpattern *pat, int element, int id);
 124 int fcPatternGetInteger(struct fontpattern *pat, int element, int id);
 125 struct patternentry *fcPatternGetEntry(struct fontpattern *pat, int element, int id);
 126 struct fontpattern *fcPatternAlloc(void);
 127 void fcPatternDestroy(struct fontpattern *fd);
 128 struct fontcache *fcCreate(char *directories[]);
 129 void fcDestroy(struct fontcache *cache);
 130 struct fontpattern *fcMatch(struct fontcache *cache, struct fontpattern *pat, int *matchingcriteria);
 131
 132 struct fontcache *fcLoad(char *fname);
 133 int fcSave(struct fontcache *fontcache, char *fname);
 134 int fcAddPattern(struct fontcache *fontcache, struct fontpattern *pat);
 135
 136 #ifdef __cplusplus
 137 }
 138 #endif
 139
 140 #endif