// ----------------------------------------------------------------------------- // font framework // - rlyeh, public domain // font size tags #define FONT_H1 "\1" // largest #define FONT_H2 "\2" #define FONT_H3 "\3" #define FONT_H4 "\4" #define FONT_H5 "\5" #define FONT_H6 "\6" // smallest // font color tags #define FONT_COLOR1 "\x1a" #define FONT_COLOR2 "\x1b" #define FONT_COLOR3 "\x1c" #define FONT_COLOR4 "\x1d" #define FONT_COLOR5 "\x1e" #define FONT_COLOR6 "\x1f" // font face tags #define FONT_FACE1 "\x10" #define FONT_FACE2 "\x11" #define FONT_FACE3 "\x12" #define FONT_FACE4 "\x13" #define FONT_FACE5 "\x14" #define FONT_FACE6 "\x15" #define FONT_FACE7 "\x16" #define FONT_FACE8 "\x17" // editor may override this one #define FONT_FACE9 "\x18" // editor may override this one #define FONT_FACE10 "\x19" // editor may override this one // font align tags #define FONT_LEFT "\\<" #define FONT_CENTER "\\|" #define FONT_JUSTIFY "\\$" #define FONT_RIGHT "\\>" #define FONT_TOP "\\^" #define FONT_MIDDLE "\\-" #define FONT_BASELINE "\\_" #define FONT_BOTTOM "\\v" // font flags enum FONT_FLAGS { // font atlas size FONT_512 = 0x0, FONT_1024 = 0x1, FONT_2048 = 0x2, FONT_4096 = 0x4, // font oversampling FONT_NO_OVERSAMPLE = 0x0, FONT_OVERSAMPLE_X = 0x08, FONT_OVERSAMPLE_Y = 0x10, // unicode ranges FONT_ASCII = 0x800, // Compatible charset FONT_AR = 0x001000, // Arabic and Arabic-Indic digits FONT_ZH = 0x002000, // Chinese Simplified (@todo: add ZH_FULL) FONT_EL = 0x004000, // Greek, Coptic, modern Georgian, Svan, Mingrelian, Ancient Greek FONT_EM = 0x008000, // Emoji FONT_EU = 0x010000, // Eastern/western Europe, IPA, Latin ext A/B FONT_HE = 0x020000, // Hebrew, Yiddish, Ladino, and other diaspora languages FONT_JP = 0x040000, // Hiragana, Katakana, Punctuations, Half-width chars FONT_KR = 0x080000, // Korean, Hangul FONT_RU = 0x100000, // Cyrillic + ext A/B FONT_TH = 0x200000, // Thai FONT_VI = 0x400000, // Vietnamese FONT_CJK = FONT_ZH|FONT_JP|FONT_KR, // FONT_DEFAULTS = FONT_512 | FONT_NO_OVERSAMPLE | FONT_ASCII, }; typedef struct font_metrics_t { float ascent; // max distance above baseline for all glyphs float descent; // max distance below baseline for all glyphs float linegap; // distance between ascent of next line and descent of current line float linedist; // distance between the baseline of two lines (ascent - descent + linegap) } font_metrics_t; // configures API void font_face(const char *face_tag, const char *filename_ttf, float font_size, unsigned flags); API void font_face_from_mem(const char *tag, const void *ttf_buffer, unsigned ttf_len, float font_size, unsigned flags); API void font_scale(const char *face_tag, int scale_index, float value); API void font_scales(const char *face_tag, float h1, float h2, float h3, float h4, float h5, float h6); API void font_color(const char *color_tag, uint32_t color); // commands API vec2 font_xy(); API void font_goto(float x, float y); API vec2 font_print(const char *text); API vec2 font_clip(const char *text, vec4 rect); API vec2 font_rect(const char *text); API font_metrics_t font_metrics(const char *text); // void font_wrap(vec2 topleft, vec2 bottomright); // syntax highlighting API void* font_colorize(const char *text, const char *comma_types, const char *comma_keywords); // comma separated tokens. expensive, please cache result. API vec2 font_highlight(const char *text, const void *colors); // ui API void ui_font();