diff options
Diffstat (limited to 'src/gui/text/qfontengine_ft.cpp')
| -rw-r--r-- | src/gui/text/qfontengine_ft.cpp | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/gui/text/qfontengine_ft.cpp b/src/gui/text/qfontengine_ft.cpp index 140bf16394..b50c8fd95a 100644 --- a/src/gui/text/qfontengine_ft.cpp +++ b/src/gui/text/qfontengine_ft.cpp @@ -1525,6 +1525,36 @@ void QFontEngineFT::addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, int unlockFace(); } +glyph_t QFontEngineFT::glyphIndex(uint ucs4) const +{ + glyph_t glyph = ucs4 < QFreetypeFace::cmapCacheSize ? freetype->cmapCache[ucs4] : 0; + if (glyph == 0) { + FT_Face face = freetype->face; + glyph = FT_Get_Char_Index(face, ucs4); + if (glyph == 0) { + // Certain fonts don't have no-break space and tab, + // while we usually want to render them as space + if (ucs4 == QChar::Nbsp || ucs4 == QChar::Tabulation) { + glyph = FT_Get_Char_Index(face, QChar::Space); + } else if (freetype->symbol_map) { + // Symbol fonts can have more than one CMAPs, FreeType should take the + // correct one for us by default, so we always try FT_Get_Char_Index + // first. If it didn't work (returns 0), we will explicitly set the + // CMAP to symbol font one and try again. symbol_map is not always the + // correct one because in certain fonts like Wingdings symbol_map only + // contains PUA codepoints instead of the common ones. + FT_Set_Charmap(face, freetype->symbol_map); + glyph = FT_Get_Char_Index(face, ucs4); + FT_Set_Charmap(face, freetype->unicode_map); + } + } + if (ucs4 < QFreetypeFace::cmapCacheSize) + freetype->cmapCache[ucs4] = glyph; + } + + return glyph; +} + bool QFontEngineFT::stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, QFontEngine::ShaperFlags flags) const { |