On 17 September 2011 14:34, Behdad Esfahbod <behdad@xxxxxxxxxx> wrote: > On 09/17/11 08:00, Dave Pawson wrote: >> W3c css has >> http://www.w3.org/TR/css3-fonts/#font-weight-prop >> >> 100 - Thin >> 200 - Extra Light (Ultra Light) >> 300 - Light >> 400 - Normal >> 500 - Medium >> 600 - Semi Bold (Demi Bold) >> 700 - Bold >> 800 - Extra Bold (Ultra Bold) >> 900 - Black (Heavy) >> >> fontconfig has >> >> #define FC_WEIGHT_THIN 0 >> #define FC_WEIGHT_EXTRALIGHT 40 >> #define FC_WEIGHT_ULTRALIGHT FC_WEIGHT_EXTRALIGHT >> #define FC_WEIGHT_LIGHT 50 >> #define FC_WEIGHT_BOOK 75 >> #define FC_WEIGHT_REGULAR 80 >> #define FC_WEIGHT_NORMAL FC_WEIGHT_REGULAR >> #define FC_WEIGHT_MEDIUM 100 >> #define FC_WEIGHT_DEMIBOLD 180 >> #define FC_WEIGHT_SEMIBOLD FC_WEIGHT_DEMIBOLD >> #define FC_WEIGHT_BOLD 200 >> #define FC_WEIGHT_EXTRABOLD 205 >> #define FC_WEIGHT_ULTRABOLD FC_WEIGHT_EXTRABOLD >> #define FC_WEIGHT_BLACK 210 >> #define FC_WEIGHT_HEAVY FC_WEIGHT_BLACK >> #define FC_WEIGHT_EXTRABLACK 215 >> #define FC_WEIGHT_ULTRABLACK FC_WEIGHT_EXTRABLACK >> >> Is there any clear relationship between them please? So from the figures below, mapping backwards <40 : 75 <50 : 245 <75 : 365 <80 : 420 <100: 500 <180: 600 <200: 700 <205: 800 else 900 Thanks for that. Shame there are no standards in this area. DaveP > > This is how Pango maps them: > > > static int > pango_fc_convert_weight_to_fc (PangoWeight pango_weight) > { > if (pango_weight <= (PANGO_WEIGHT_THIN + PANGO_WEIGHT_ULTRALIGHT) / 2) > return FC_WEIGHT_THIN; > else if (pango_weight <= (PANGO_WEIGHT_ULTRALIGHT + PANGO_WEIGHT_LIGHT) / 2) > return FC_WEIGHT_ULTRALIGHT; > else if (pango_weight <= (PANGO_WEIGHT_LIGHT + PANGO_WEIGHT_BOOK) / 2) > return FC_WEIGHT_LIGHT; > else if (pango_weight <= (PANGO_WEIGHT_BOOK + PANGO_WEIGHT_NORMAL) / 2) > return FC_WEIGHT_BOOK; > else if (pango_weight <= (PANGO_WEIGHT_NORMAL + PANGO_WEIGHT_MEDIUM) / 2) > return FC_WEIGHT_NORMAL; > else if (pango_weight <= (PANGO_WEIGHT_MEDIUM + PANGO_WEIGHT_SEMIBOLD) / 2) > return FC_WEIGHT_MEDIUM; > else if (pango_weight <= (PANGO_WEIGHT_SEMIBOLD + PANGO_WEIGHT_BOLD) / 2) > return FC_WEIGHT_DEMIBOLD; > else if (pango_weight <= (PANGO_WEIGHT_BOLD + PANGO_WEIGHT_ULTRABOLD) / 2) > return FC_WEIGHT_BOLD; > else if (pango_weight <= (PANGO_WEIGHT_ULTRABOLD + PANGO_WEIGHT_HEAVY) / 2) > return FC_WEIGHT_ULTRABOLD; > else if (pango_weight <= (PANGO_WEIGHT_HEAVY + PANGO_WEIGHT_ULTRAHEAVY) / 2) > return FC_WEIGHT_BLACK; > else > return FC_WEIGHT_EXTRABLACK; > } > > where: > > typedef enum { > PANGO_WEIGHT_THIN = 100, > PANGO_WEIGHT_ULTRALIGHT = 200, > PANGO_WEIGHT_LIGHT = 300, > PANGO_WEIGHT_BOOK = 380, > PANGO_WEIGHT_NORMAL = 400, > PANGO_WEIGHT_MEDIUM = 500, > PANGO_WEIGHT_SEMIBOLD = 600, > PANGO_WEIGHT_BOLD = 700, > PANGO_WEIGHT_ULTRABOLD = 800, > PANGO_WEIGHT_HEAVY = 900, > PANGO_WEIGHT_ULTRAHEAVY = 1000 > } PangoWeight; > > > behdad > >> TIA > -- Dave Pawson XSLT XSL-FO FAQ. Docbook FAQ. http://www.dpawson.co.uk _______________________________________________ Fontconfig mailing list Fontconfig@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/fontconfig
