diff options
Diffstat (limited to 'source/blender/blenfont/intern/blf_glyph.c')
| -rw-r--r-- | source/blender/blenfont/intern/blf_glyph.c | 403 |
1 files changed, 387 insertions, 16 deletions
diff --git a/source/blender/blenfont/intern/blf_glyph.c b/source/blender/blenfont/intern/blf_glyph.c index 2694b179a11..ed30cca4da2 100644 --- a/source/blender/blenfont/intern/blf_glyph.c +++ b/source/blender/blenfont/intern/blf_glyph.c @@ -39,6 +39,7 @@ #include "BLI_math_vector.h" #include "BLI_strict_flags.h" +#include "BLI_string_utf8.h" /* -------------------------------------------------------------------- */ /** \name Internal Utilities @@ -222,6 +223,335 @@ static GlyphBLF *blf_glyph_cache_add_glyph( return g; } +/* This table can be used to find a coverage bit based on a charcode. later we can get default + * language and script from codepoint. */ + +typedef struct eUnicodeBlock { + unsigned int first; + unsigned int last; + int coverage_bit; /* 0-122. -1 is N/A. */ + /* Later we add primary script and language for Harfbuzz, data from + * https://en.wikipedia.org/wiki/Unicode_block */ +} eUnicodeBlock; + +static eUnicodeBlock unicode_blocks[] = { + /* Must be in ascending order by start of range. */ + {0x0, 0x7F, 0}, /* Basic Latin. */ + {0x80, 0xFF, 1}, /* Latin-1 Supplement. */ + {0x100, 0x17F, 2}, /* Latin Extended-A. */ + {0x180, 0x24F, 3}, /* Latin Extended-B. */ + {0x250, 0x2AF, 4}, /* IPA Extensions. */ + {0x2B0, 0x2FF, 5}, /* Spacing Modifier Letters. */ + {0x300, 0x36F, 6}, /* Combining Diacritical Marks. */ + {0x370, 0x3FF, 7}, /* Greek. */ + {0x400, 0x52F, 9}, /* Cyrillic. */ + {0x530, 0x58F, 10}, /* Armenian. */ + {0x590, 0x5FF, 11}, /* Hebrew. */ + {0x600, 0x6FF, 13}, /* Arabic. */ + {0x700, 0x74F, 71}, /* Syriac. */ + {0x750, 0x77F, 13}, /* Arabic Supplement. */ + {0x780, 0x7BF, 72}, /* Thaana. */ + {0x7C0, 0x7FF, 14}, /* NKo. */ + {0x800, 0x83F, -1}, /* Samaritan. */ + {0x840, 0x85F, -1}, /* Mandaic. */ + {0x900, 0x97F, 15}, /* Devanagari. */ + {0x980, 0x9FF, 16}, /* Bengali. */ + {0xA00, 0xA7F, 17}, /* Gurmukhi. */ + {0xA80, 0xAFF, 18}, /* Gujarati. */ + {0xB00, 0xB7F, 19}, /* Oriya. */ + {0xB80, 0xBFF, 20}, /* Tamil. */ + {0xC00, 0xC7F, 21}, /* Telugu. */ + {0xC80, 0xCFF, 22}, /* Kannada. */ + {0xD00, 0xD7F, 23}, /* Malayalam. */ + {0xD80, 0xDFF, 73}, /* Sinhala. */ + {0xE00, 0xE7F, 24}, /* Thai. */ + {0xE80, 0xEFF, 25}, /* Lao. */ + {0xF00, 0xFFF, 70}, /* Tibetan. */ + {0x1000, 0x109F, 74}, /* Myanmar. */ + {0x10A0, 0x10FF, 26}, /* Georgian. */ + {0x1100, 0x11FF, 28}, /* Hangul Jamo. */ + {0x1200, 0x139F, 75}, /* Ethiopic. */ + {0x13A0, 0x13FF, 76}, /* Cherokee. */ + {0x1400, 0x167F, 77}, /* Canadian Aboriginal. */ + {0x1680, 0x169F, 78}, /* Ogham. */ + {0x16A0, 0x16FF, 79}, /* unic. */ + {0x1700, 0x171F, 84}, /* Tagalog. */ + {0x1720, 0x173F, 84}, /* Hanunoo. */ + {0x1740, 0x175F, 84}, /* Buhid. */ + {0x1760, 0x177F, 84}, /* Tagbanwa. */ + {0x1780, 0x17FF, 80}, /* Khmer. */ + {0x1800, 0x18AF, 81}, /* Mongolian. */ + {0x1900, 0x194F, 93}, /* Limbu. */ + {0x1950, 0x197F, 94}, /* Tai Le. */ + {0x1980, 0x19DF, 95}, /* New Tai Lue". */ + {0x19E0, 0x19FF, 80}, /* Khmer. */ + {0x1A00, 0x1A1F, 96}, /* Buginese. */ + {0x1A20, 0x1AAF, -1}, /* Tai Tham. */ + {0x1B00, 0x1B7F, 27}, /* Balinese. */ + {0x1B80, 0x1BBF, 112}, /* Sundanese. */ + {0x1BC0, 0x1BFF, -1}, /* Batak. */ + {0x1C00, 0x1C4F, 113}, /* Lepcha. */ + {0x1C50, 0x1C7F, 114}, /* Ol Chiki. */ + {0x1D00, 0x1DBF, 4}, /* IPA Extensions. */ + {0x1DC0, 0x1DFF, 6}, /* Combining Diacritical Marks. */ + {0x1E00, 0x1EFF, 29}, /* Latin Extended Additional. */ + {0x1F00, 0x1FFF, 30}, /* Greek Extended. */ + {0x2000, 0x206F, 31}, /* General Punctuation. */ + {0x2070, 0x209F, 32}, /* Superscripts And Subscripts. */ + {0x20A0, 0x20CF, 33}, /* Currency Symbols. */ + {0x20D0, 0x20FF, 34}, /* Combining Diacritical Marks For Symbols. */ + {0x2100, 0x214F, 35}, /* Letterlike Symbols. */ + {0x2150, 0x218F, 36}, /* Number Forms. */ + {0x2190, 0x21FF, 37}, /* Arrows. */ + {0x2200, 0x22FF, 38}, /* Mathematical Operators. */ + {0x2300, 0x23FF, 39}, /* Miscellaneous Technical. */ + {0x2400, 0x243F, 40}, /* Control Pictures. */ + {0x2440, 0x245F, 41}, /* Optical Character Recognition. */ + {0x2460, 0x24FF, 42}, /* Enclosed Alphanumerics. */ + {0x2500, 0x257F, 43}, /* Box Drawing. */ + {0x2580, 0x259F, 44}, /* Block Elements. */ + {0x25A0, 0x25FF, 45}, /* Geometric Shapes. */ + {0x2600, 0x26FF, 46}, /* Miscellaneous Symbols. */ + {0x2700, 0x27BF, 47}, /* Dingbats. */ + {0x27C0, 0x27EF, 38}, /* Mathematical Operators. */ + {0x27F0, 0x27FF, 37}, /* Arrows. */ + {0x2800, 0x28FF, 82}, /* Braille. */ + {0x2900, 0x297F, 37}, /* Arrows. */ + {0x2980, 0x2AFF, 38}, /* Mathematical Operators. */ + {0x2B00, 0x2BFF, 37}, /* Arrows. */ + {0x2C00, 0x2C5F, 97}, /* Glagolitic. */ + {0x2C60, 0x2C7F, 29}, /* Latin Extended Additional. */ + {0x2C80, 0x2CFF, 8}, /* Coptic. */ + {0x2D00, 0x2D2F, 26}, /* Georgian. */ + {0x2D30, 0x2D7F, 98}, /* Tifinagh. */ + {0x2D80, 0x2DDF, 75}, /* Ethiopic. */ + {0x2DE0, 0x2DFF, 9}, /* Cyrillic. */ + {0x2E00, 0x2E7F, 31}, /* General Punctuation. */ + {0x2E80, 0x2FFF, 59}, /* CJK Unified Ideographs. */ + {0x3000, 0x303F, 48}, /* CJK Symbols And Punctuation. */ + {0x3040, 0x309F, 49}, /* Hiragana. */ + {0x30A0, 0x30FF, 50}, /* Katakana. */ + {0x3100, 0x312F, 51}, /* Bopomofo. */ + {0x3130, 0x318F, 52}, /* Hangul Compatibility Jamo. */ + {0x3190, 0x319F, 59}, /* CJK Unified Ideographs. */ + {0x31A0, 0x31BF, 51}, /* Bopomofo. */ + {0x31C0, 0x31EF, 59}, /* CJK Unified Ideographs. */ + {0x31F0, 0x31FF, 50}, /* Katakana. */ + {0x3200, 0x32FF, 54}, /* Enclosed CJK Letters And Months. */ + {0x3300, 0x33FF, 55}, /* CJK Compatibility. */ + {0x3400, 0x4DBF, 59}, /* CJK Unified Ideographs. */ + {0x4DC0, 0x4DFF, 99}, /* Yijing. */ + {0x4E00, 0x9FFF, 59}, /* CJK Unified Ideographs. */ + {0xA000, 0xA4CF, 83}, /* Yi. */ + {0xA4D0, 0xA4FF, -1}, /* Lisu. */ + {0xA500, 0xA63F, 12}, /* Vai. */ + {0xA640, 0xA69F, 9}, /* Cyrillic. */ + {0xA6A0, 0xA6FF, -1}, /* Bamum. */ + {0xA700, 0xA71F, 5}, /* Spacing Modifier Letters. */ + {0xA720, 0xA7FF, 29}, /* Latin Extended Additional. */ + {0xA800, 0xA82F, 100}, /* Syloti Nagri. */ + {0xA840, 0xA87F, 53}, /* Phags-pa. */ + {0xA880, 0xA8DF, 115}, /* Saurashtra. */ + {0xA900, 0xA92F, 116}, /* Kayah Li. */ + {0xA930, 0xA95F, 117}, /* Rejang. */ + {0xA960, 0xA97F, 56}, /* Hangul Syllables. */ + {0xA980, 0xA9DF, -1}, /* Javanese. */ + {0xA9E0, 0xA9FF, 74}, /* Myanmar. */ + {0xAA00, 0xAA5F, 118}, /* Cham. */ + {0xAA60, 0xAA7F, 74}, /* Myanmar. */ + {0xAA80, 0xAADF, -1}, /* Tai Viet. */ + {0xAAE0, 0xAAFF, -1}, /* Meetei Mayek. */ + {0xAB00, 0xAB2F, 75}, /* Ethiopic. */ + {0xAB70, 0xABBF, 76}, /* Cherokee. */ + {0xABC0, 0xABFF, -1}, /* Meetei Mayek. */ + {0xAC00, 0xD7AF, 56}, /* Hangul Syllables. */ + {0xD800, 0xDFFF, 57}, /* Non-Plane 0. */ + {0xE000, 0xF6FF, 60}, /* Private Use Area. */ + {0xE700, 0xEFFF, -1}, /* MS Wingdings. */ + {0xF000, 0xF8FF, -1}, /* MS Symbols. */ + {0xF900, 0xFAFF, 61}, /* CJK Compatibility Ideographs. */ + {0xFB00, 0xFB4F, 62}, /* Alphabetic Presentation Forms. */ + {0xFB50, 0xFDFF, 63}, /* Arabic Presentation Forms-A. */ + {0xFE00, 0xFE0F, 91}, /* Variation Selectors. */ + {0xFE10, 0xFE1F, 65}, /* CJK Compatibility Forms. */ + {0xFE20, 0xFE2F, 64}, /* Combining Half Marks. */ + {0xFE30, 0xFE4F, 65}, /* CJK Compatibility Forms. */ + {0xFE50, 0xFE6F, 66}, /* Small Form Variants. */ + {0xFE70, 0xFEFF, 67}, /* Arabic Presentation Forms-B. */ + {0xFF00, 0xFFEF, 68}, /* Halfwidth And Fullwidth Forms. */ + {0xFFF0, 0xFFFF, 69}, /* Specials. */ + {0x10000, 0x1013F, 101}, /* Linear B. */ + {0x10140, 0x1018F, 102}, /* Ancient Greek Numbers. */ + {0x10190, 0x101CF, 119}, /* Ancient Symbols. */ + {0x101D0, 0x101FF, 120}, /* Phaistos Disc. */ + {0x10280, 0x1029F, 121}, /* Lycian. */ + {0x102A0, 0x102DF, 121}, /* Carian. */ + {0x10300, 0x1032F, 85}, /* Old Italic. */ + {0x10330, 0x1034F, 86}, /* Gothic. */ + {0x10350, 0x1037F, -1}, /* Old Permic. */ + {0x10380, 0x1039F, 103}, /* Ugaritic. */ + {0x103A0, 0x103DF, 104}, /* Old Persian. */ + {0x10400, 0x1044F, 87}, /* Deseret. */ + {0x10450, 0x1047F, 105}, /* Shavian. */ + {0x10480, 0x104AF, 106}, /* Osmanya. */ + {0x104B0, 0x104FF, -1}, /* Osage. */ + {0x10500, 0x1052F, -1}, /* Elbasan. */ + {0x10530, 0x1056F, -1}, /* Caucasian Albanian. */ + {0x10570, 0x105BF, -1}, /* Vithkuqi. */ + {0x10600, 0x1077F, -1}, /* Linear A. */ + {0x10780, 0x107BF, 3}, /* Latin Extended-B. */ + {0x10800, 0x1083F, 107}, /* Cypriot Syllabary. */ + {0x10840, 0x1085F, -1}, /* Imperial Aramaic. */ + {0x10860, 0x1087F, -1}, /* Palmyrene. */ + {0x10880, 0x108AF, -1}, /* Nabataean. */ + {0x108E0, 0x108FF, -1}, /* Hatran. */ + {0x10900, 0x1091F, 58}, /* Phoenician. */ + {0x10920, 0x1093F, 121}, /* Lydian. */ + {0x10980, 0x1099F, -1}, /* Meroitic Hieroglyphs. */ + {0x109A0, 0x109FF, -1}, /* Meroitic Cursive. */ + {0x10A00, 0x10A5F, 108}, /* Kharoshthi. */ + {0x10A60, 0x10A7F, -1}, /* Old South Arabian. */ + {0x10A80, 0x10A9F, -1}, /* Old North Arabian. */ + {0x10AC0, 0x10AFF, -1}, /* Manichaean. */ + {0x10B00, 0x10B3F, -1}, /* Avestan. */ + {0x10B40, 0x10B5F, -1}, /* Inscriptional Parthian. */ + {0x10B60, 0x10B7F, -1}, /* Inscriptional Pahlavi. */ + {0x10B80, 0x10BAF, -1}, /* Psalter Pahlavi. */ + {0x10C00, 0x10C4F, -1}, /* Old Turkic. */ + {0x10C80, 0x10CFF, -1}, /* Old Hungarian. */ + {0x10D00, 0x10D3F, -1}, /* Hanifi Rohingya. */ + {0x108E0, 0x10E7F, -1}, /* Rumi Numeral Symbols. */ + {0x10E80, 0x10EBF, -1}, /* Yezidi. */ + {0x10F00, 0x10F2F, -1}, /* Old Sogdian. */ + {0x10F30, 0x10F6F, -1}, /* Sogdian. */ + {0x10F70, 0x10FAF, -1}, /* Old Uyghur. */ + {0x10FB0, 0x10FDF, -1}, /* Chorasmian. */ + {0x10FE0, 0x10FFF, -1}, /* Elymaic. */ + {0x11000, 0x1107F, -1}, /* Brahmi. */ + {0x11080, 0x110CF, -1}, /* Kaithi. */ + {0x110D0, 0x110FF, -1}, /* Sora Sompeng. */ + {0x11100, 0x1114F, -1}, /* Chakma. */ + {0x11150, 0x1117F, -1}, /* Mahajani. */ + {0x11180, 0x111DF, -1}, /* Sharada. */ + {0x111E0, 0x111FF, -1}, /* Sinhala Archaic Numbers. */ + {0x11200, 0x1124F, -1}, /* Khojki. */ + {0x11280, 0x112AF, -1}, /* Multani. */ + {0x112B0, 0x112FF, -1}, /* Khudawadi. */ + {0x11300, 0x1137F, -1}, /* Grantha. */ + {0x11400, 0x1147F, -1}, /* Newa. */ + {0x11480, 0x114DF, -1}, /* Tirhuta. */ + {0x11580, 0x115FF, -1}, /* Siddham. */ + {0x11600, 0x1165F, -1}, /* Modi. */ + {0x11660, 0x1167F, 81}, /* Mongolian. */ + {0x11680, 0x116CF, -1}, /* Takri. */ + {0x11700, 0x1174F, -1}, /* Ahom. */ + {0x11800, 0x1184F, -1}, /* Dogra. */ + {0x118A0, 0x118FF, -1}, /* Warang Citi. */ + {0x11900, 0x1195F, -1}, /* Dives Akuru. */ + {0x119A0, 0x119FF, -1}, /* Nandinagari. */ + {0x11A00, 0x11A4F, -1}, /* Zanabazar Square. */ + {0x11A50, 0x11AAF, -1}, /* Soyombo. */ + {0x11AB0, 0x11ABF, 77}, /* Canadian Aboriginal Syllabics. */ + {0x11AC0, 0x11AFF, -1}, /* Pau Cin Hau. */ + {0x11C00, 0x11C6F, -1}, /* Bhaiksuki. */ + {0x11C70, 0x11CBF, -1}, /* Marchen. */ + {0x11D00, 0x11D5F, -1}, /* Masaram Gondi. */ + {0x11D60, 0x11DAF, -1}, /* Gunjala Gondi. */ + {0x11EE0, 0x11EFF, -1}, /* Makasar. */ + {0x11FB0, 0x11FBF, -1}, /* Lisu. */ + {0x11FC0, 0x11FFF, 20}, /* Tamil. */ + {0x12000, 0x1254F, 110}, /* Cuneiform. */ + {0x12F90, 0x12FFF, -1}, /* Cypro-Minoan. */ + {0x13000, 0x1343F, -1}, /* Egyptian Hieroglyphs. */ + {0x14400, 0x1467F, -1}, /* Anatolian Hieroglyphs. */ + {0x16800, 0x16A3F, -1}, /* Bamum. */ + {0x16A40, 0x16A6F, -1}, /* Mro. */ + {0x16A70, 0x16ACF, -1}, /* Tangsa. */ + {0x16AD0, 0x16AFF, -1}, /* Bassa Vah. */ + {0x16B00, 0x16B8F, -1}, /* Pahawh Hmong. */ + {0x16E40, 0x16E9F, -1}, /* Medefaidrin. */ + {0x16F00, 0x16F9F, -1}, /* Miao. */ + {0x16FE0, 0x16FFF, -1}, /* Ideographic Symbols. */ + {0x17000, 0x18AFF, -1}, /* Tangut. */ + {0x1B170, 0x1B2FF, -1}, /* Nushu. */ + {0x1BC00, 0x1BC9F, -1}, /* Duployan. */ + {0x1D000, 0x1D24F, 88}, /* Musical Symbols. */ + {0x1D2E0, 0x1D2FF, -1}, /* Mayan Numerals. */ + {0x1D300, 0x1D35F, 109}, /* Tai Xuan Jing. */ + {0x1D360, 0x1D37F, 111}, /* Counting Rod Numerals. */ + {0x1D400, 0x1D7FF, 89}, /* Mathematical Alphanumeric Symbols. */ + {0x1E2C0, 0x1E2FF, -1}, /* Wancho. */ + {0x1E800, 0x1E8DF, -1}, /* Mende Kikakui. */ + {0x1E900, 0x1E95F, -1}, /* Adlam. */ + {0x1EC70, 0x1ECBF, -1}, /* Indic Siyaq Numbers. */ + {0x1F000, 0x1F02F, 122}, /* Mahjong Tiles. */ + {0x1F030, 0x1F09F, 122}, /* Domino Tiles. */ + {0x1F600, 0x1F64F, -1}, /* Emoticons. */ + {0x20000, 0x2A6DF, 59}, /* CJK Unified Ideographs. */ + {0x2F800, 0x2FA1F, 61}, /* CJK Compatibility Ideographs. */ + {0xE0000, 0xE007F, 92}, /* Tags. */ + {0xE0100, 0xE01EF, 91}, /* Variation Selectors. */ + {0xF0000, 0x10FFFD, 90}}; /* Private Use Supplementary. */ + +/* Find a unicode block that a charcode belongs to. */ +static eUnicodeBlock *blf_charcode_to_unicode_block(uint charcode) +{ + if (charcode < 0x80) { + /* Shortcut to Basic Latin. */ + return &unicode_blocks[0]; + } + + /* Binary search for other blocks. */ + + int min = 0; + int max = ARRAY_SIZE(unicode_blocks) - 1; + int mid; + + if (charcode < unicode_blocks[0].first || charcode > unicode_blocks[max].last) { + return NULL; + } + + while (max >= min) { + mid = (min + max) / 2; + if (charcode > unicode_blocks[mid].last) { + min = mid + 1; + } + else if (charcode < unicode_blocks[mid].first) { + max = mid - 1; + } + else { + return &unicode_blocks[mid]; + } + } + + return NULL; +} + +static int blf_charcode_to_coverage_bit(uint charcode) +{ + int coverage_bit = -1; + eUnicodeBlock *block = blf_charcode_to_unicode_block(charcode); + if (block) { + coverage_bit = block->coverage_bit; + } + + if (coverage_bit < 0 && charcode > 0xFFFF) { + /* No coverage bit, but OpenType specs v.1.3+ says bit 57 implies that there + * are codepoints supported beyond the BMP, so only check fonts with this set. */ + coverage_bit = 57; + } + + return coverage_bit; +} + +static bool blf_font_has_coverage_bit(FontBLF *font, int coverage_bit) +{ + if (coverage_bit < 0) { + return false; + } + return (font->UnicodeRanges[(uint)coverage_bit >> 5] & (1u << ((uint)coverage_bit % 32))); +} + /** * Return a glyph index from `charcode`. Not found returns zero, which is a valid * printable character (`.notdef` or `tofu`). Font is allowed to change here. @@ -229,8 +559,42 @@ static GlyphBLF *blf_glyph_cache_add_glyph( static FT_UInt blf_glyph_index_from_charcode(FontBLF **font, const uint charcode) { FT_UInt glyph_index = FT_Get_Char_Index((*font)->face, charcode); - /* TODO: If not found in this font, check others, update font pointer. */ - return glyph_index; + if (glyph_index) { + return glyph_index; + } + + /* Not found in main font, so look in the others. */ + FontBLF *last_resort = NULL; + int coverage_bit = blf_charcode_to_coverage_bit(charcode); + for (int i = 0; i < BLF_MAX_FONT; i++) { + FontBLF *f = global_font[i]; + if (!f || f == *font || !(f->flags & BLF_DEFAULT)) { + continue; + } + + if (f->flags & BLF_LAST_RESORT) { + last_resort = f; + continue; + } + if (coverage_bit < 0 || blf_font_has_coverage_bit(f, coverage_bit)) { + glyph_index = FT_Get_Char_Index(f->face, charcode); + if (glyph_index) { + *font = f; + return glyph_index; + } + } + } + + /* Not found in the stack, return from Last Resort if there is one. */ + if (last_resort) { + glyph_index = FT_Get_Char_Index(last_resort->face, charcode); + if (glyph_index) { + *font = last_resort; + return glyph_index; + } + } + + return 0; } /** @@ -377,24 +741,24 @@ static bool UNUSED_FUNCTION(blf_glyph_transform_width)(FT_GlyphSlot glyph, float /** * Transform glyph to fit nicely within a fixed column width. */ -static bool UNUSED_FUNCTION(blf_glyph_transform_monospace)(FT_GlyphSlot glyph, int width) +static bool blf_glyph_transform_monospace(FT_GlyphSlot glyph, int width) { if (glyph->format == FT_GLYPH_FORMAT_OUTLINE) { - int gwidth = (int)(glyph->linearHoriAdvance >> 16); - if (gwidth > width) { - float scale = (float)width / (float)gwidth; + FT_Fixed current = glyph->linearHoriAdvance; + FT_Fixed target = width << 16; /* Do math in 16.16 values. */ + if (target < current) { + const FT_Pos embolden = (FT_Pos)((current - target) >> 13); + /* Horizontally widen strokes to counteract narrowing. */ + FT_Outline_EmboldenXY(&glyph->outline, embolden, 0); + const float scale = (float)(target - (embolden << 9)) / (float)current; FT_Matrix matrix = {to_16dot16(scale), 0, 0, to_16dot16(1)}; - /* Narrowing all points also thins vertical strokes. */ FT_Outline_Transform(&glyph->outline, &matrix); - const FT_Pos extra_x = (int)((float)(gwidth - width) * 5.65f); - /* Horizontally widen strokes to counteract narrowing. */ - FT_Outline_EmboldenXY(&glyph->outline, extra_x, 0); } - else if (gwidth < width) { - /* Narrow glyphs only need to be centered. */ - int nudge = (width - gwidth) / 2; - FT_Outline_Translate(&glyph->outline, (FT_Pos)nudge * 64, 0); + else if (target > current) { + /* Center narrow glyphs. */ + FT_Outline_Translate(&glyph->outline, (FT_Pos)((target - current) >> 11), 0); } + glyph->advance.x = width << 6; return true; } return false; @@ -411,7 +775,9 @@ static bool UNUSED_FUNCTION(blf_glyph_transform_monospace)(FT_GlyphSlot glyph, i */ static FT_GlyphSlot blf_glyph_render(FontBLF *settings_font, FontBLF *glyph_font, - FT_UInt glyph_index) + FT_UInt glyph_index, + uint charcode, + int fixed_width) { if (glyph_font != settings_font) { FT_Set_Char_Size(glyph_font->face, @@ -428,6 +794,10 @@ static FT_GlyphSlot blf_glyph_render(FontBLF *settings_font, return NULL; } + if ((settings_font->flags & BLF_MONOSPACED) && (settings_font != glyph_font)) { + blf_glyph_transform_monospace(glyph, BLI_wcwidth((char32_t)charcode) * fixed_width); + } + if ((settings_font->flags & BLF_ITALIC) != 0) { /* 37.5% of maximum rightward slant results in 6 degree slope, matching italic * version (`DejaVuSans-Oblique.ttf`) of our current font. But a nice median when @@ -466,7 +836,8 @@ GlyphBLF *blf_glyph_ensure(FontBLF *font, GlyphCacheBLF *gc, uint charcode) * renderer uses a shared buffer internally. */ BLI_spin_lock(font_with_glyph->ft_lib_mutex); - FT_GlyphSlot glyph = blf_glyph_render(font, font_with_glyph, glyph_index); + FT_GlyphSlot glyph = blf_glyph_render( + font, font_with_glyph, glyph_index, charcode, gc->fixed_width); if (glyph) { /* Save this glyph in the initial font's cache. */ |