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Initial font rework.
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#ifndef FONT_RENDERER_H
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#define FONT_RENDERER_H
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// -----------------------------------------------------------------------------
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// font framework
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// font framework originally from FWK
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// - rlyeh, public domain
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#include "object/object.h"
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// font size tags
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#define FONT_H1 "\1" // largest
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#define FONT_H2 "\2"
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@ -11,90 +16,102 @@
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#define FONT_H6 "\6" // smallest
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// font color tags
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#define FONT_COLOR1 "\x1a"
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#define FONT_COLOR2 "\x1b"
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#define FONT_COLOR3 "\x1c"
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#define FONT_COLOR4 "\x1d"
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#define FONT_COLOR5 "\x1e"
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#define FONT_COLOR6 "\x1f"
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#define FONT_COLOR1 "\x1a"
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#define FONT_COLOR2 "\x1b"
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#define FONT_COLOR3 "\x1c"
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#define FONT_COLOR4 "\x1d"
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#define FONT_COLOR5 "\x1e"
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#define FONT_COLOR6 "\x1f"
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// font face tags
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#define FONT_FACE1 "\x10"
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#define FONT_FACE2 "\x11"
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#define FONT_FACE3 "\x12"
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#define FONT_FACE4 "\x13"
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#define FONT_FACE5 "\x14"
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#define FONT_FACE6 "\x15"
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#define FONT_FACE7 "\x16"
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#define FONT_FACE8 "\x17" // editor may override this one
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#define FONT_FACE9 "\x18" // editor may override this one
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#define FONT_FACE10 "\x19" // editor may override this one
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#define FONT_FACE1 "\x10"
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#define FONT_FACE2 "\x11"
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#define FONT_FACE3 "\x12"
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#define FONT_FACE4 "\x13"
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#define FONT_FACE5 "\x14"
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#define FONT_FACE6 "\x15"
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#define FONT_FACE7 "\x16"
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#define FONT_FACE8 "\x17" // editor may override this one
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#define FONT_FACE9 "\x18" // editor may override this one
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#define FONT_FACE10 "\x19" // editor may override this one
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// font align tags
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#define FONT_LEFT "\\<"
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#define FONT_CENTER "\\|"
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#define FONT_RIGHT "\\>"
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#define FONT_TOP "\\^"
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#define FONT_MIDDLE "\\-"
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#define FONT_LEFT "\\<"
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#define FONT_CENTER "\\|"
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#define FONT_RIGHT "\\>"
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#define FONT_TOP "\\^"
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#define FONT_MIDDLE "\\-"
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#define FONT_BASELINE "\\_"
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#define FONT_BOTTOM "\\v"
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#define FONT_BOTTOM "\\v"
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// font flags
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enum FONT_FLAGS {
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// font atlas size
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FONT_512 = 0x0,
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FONT_1024 = 0x1,
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FONT_2048 = 0x2,
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FONT_4096 = 0x4,
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class TextRenderer : public Object {
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SFW_OBJECT(TextRenderer, Object);
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// font oversampling
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FONT_NO_OVERSAMPLE = 0x0,
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FONT_OVERSAMPLE_X = 0x08,
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FONT_OVERSAMPLE_Y = 0x10,
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public:
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// font flags
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enum FONT_FLAGS {
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// font atlas size
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FONT_512 = 0x0,
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FONT_1024 = 0x1,
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FONT_2048 = 0x2,
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FONT_4096 = 0x4,
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// unicode ranges
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FONT_ASCII = 0x800, // Compatible charset
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FONT_AR = 0x001000, // Arabic and Arabic-Indic digits
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FONT_ZH = 0x002000, // Chinese Simplified (@todo: add ZH_FULL)
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FONT_EL = 0x004000, // Greek, Coptic, modern Georgian, Svan, Mingrelian, Ancient Greek
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FONT_EM = 0x008000, // Emoji
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FONT_EU = 0x010000, // Eastern/western Europe, IPA, Latin ext A/B
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FONT_HE = 0x020000, // Hebrew, Yiddish, Ladino, and other diaspora languages
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FONT_JP = 0x040000, // Hiragana, Katakana, Punctuations, Half-width chars
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FONT_KR = 0x080000, // Korean, Hangul
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FONT_RU = 0x100000, // Cyrillic + ext A/B
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FONT_TH = 0x200000, // Thai
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FONT_VI = 0x400000, // Vietnamese
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FONT_CJK = FONT_ZH|FONT_JP|FONT_KR,
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// font oversampling
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FONT_NO_OVERSAMPLE = 0x0,
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FONT_OVERSAMPLE_X = 0x08,
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FONT_OVERSAMPLE_Y = 0x10,
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// FONT_DEFAULTS = FONT_512 | FONT_NO_OVERSAMPLE | FONT_ASCII,
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// unicode ranges
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FONT_ASCII = 0x800, // Compatible charset
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FONT_AR = 0x001000, // Arabic and Arabic-Indic digits
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FONT_ZH = 0x002000, // Chinese Simplified (@todo: add ZH_FULL)
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FONT_EL = 0x004000, // Greek, Coptic, modern Georgian, Svan, Mingrelian, Ancient Greek
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FONT_EM = 0x008000, // Emoji
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FONT_EU = 0x010000, // Eastern/western Europe, IPA, Latin ext A/B
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FONT_HE = 0x020000, // Hebrew, Yiddish, Ladino, and other diaspora languages
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FONT_JP = 0x040000, // Hiragana, Katakana, Punctuations, Half-width chars
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FONT_KR = 0x080000, // Korean, Hangul
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FONT_RU = 0x100000, // Cyrillic + ext A/B
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FONT_TH = 0x200000, // Thai
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FONT_VI = 0x400000, // Vietnamese
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FONT_CJK = FONT_ZH | FONT_JP | FONT_KR,
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// FONT_DEFAULTS = FONT_512 | FONT_NO_OVERSAMPLE | FONT_ASCII,
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};
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typedef struct font_metrics_t {
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float ascent; // max distance above baseline for all glyphs
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float descent; // max distance below baseline for all glyphs
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float linegap; // distance betwen ascent of next line and descent of current line
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float linedist; // distance between the baseline of two lines (ascent - descent + linegap)
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} font_metrics_t;
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// configures
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void font_face(const char *face_tag, const char *filename_ttf, float font_size, unsigned flags);
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void font_face_from_mem(const char *tag, const void *ttf_buffer, unsigned ttf_len, float font_size, unsigned flags);
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void font_scales(const char *face_tag, float h1, float h2, float h3, float h4, float h5, float h6);
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void font_color(const char *color_tag, uint32_t color);
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// commands
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vec2 font_xy();
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void font_goto(float x, float y);
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vec2 font_print(const char *text);
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vec2 font_rect(const char *text);
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font_metrics_t font_metrics(const char *text);
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// void font_clip(vec2 topleft, vec2 bottomright);
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// void font_wrap(vec2 topleft, vec2 bottomright);
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// syntax highlighting
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void *font_colorize(const char *text, const char *comma_types, const char *comma_keywords); // comma separated tokens. expensive, please cache result.
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vec2 font_highlight(const char *text, const void *colors);
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// ui
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void ui_font();
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static TextRenderer *get_singleton();
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protected:
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static TextRenderer *_singleton;
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};
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typedef struct font_metrics_t {
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float ascent; // max distance above baseline for all glyphs
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float descent; // max distance below baseline for all glyphs
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float linegap; // distance betwen ascent of next line and descent of current line
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float linedist; // distance between the baseline of two lines (ascent - descent + linegap)
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} font_metrics_t;
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// configures
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API void font_face(const char *face_tag, const char *filename_ttf, float font_size, unsigned flags);
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API void font_face_from_mem(const char *tag, const void *ttf_buffer, unsigned ttf_len, float font_size, unsigned flags);
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API void font_scales(const char *face_tag, float h1, float h2, float h3, float h4, float h5, float h6);
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API void font_color(const char *color_tag, uint32_t color);
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// commands
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API vec2 font_xy();
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API void font_goto(float x, float y);
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API vec2 font_print(const char *text);
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API vec2 font_rect(const char *text);
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API font_metrics_t font_metrics(const char *text);
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// void font_clip(vec2 topleft, vec2 bottomright);
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// void font_wrap(vec2 topleft, vec2 bottomright);
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// syntax highlighting
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API void* font_colorize(const char *text, const char *comma_types, const char *comma_keywords); // comma separated tokens. expensive, please cache result.
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API vec2 font_highlight(const char *text, const void *colors);
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// ui
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API void ui_font();
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#endif
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