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authorFriedemann Kleint <Friedemann.Kleint@theqtcompany.com>2015-10-26 15:41:26 +0100
committerFriedemann Kleint <Friedemann.Kleint@theqtcompany.com>2015-12-03 15:03:33 +0000
commitd508c6697b3fa319cc117048d0969806d2a42175 (patch)
treec19f79b35ad7f0cbc31555e77b042d66d9d1b256
parentde7d2eb2adcdee82e48b04945aca87d455e65f9f (diff)
Freetype font engine: Restrict bold depending on OS2 weight class.
Limit setting bold to weights <=750. Task-number: QTBUG-48922 Change-Id: Id38b636698e58b0686dda9711ee1b3426a3b45b9 Reviewed-by: Gunnar Roth <gunnar.roth@gmx.net> Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>
-rw-r--r--src/gui/text/qfontengine_ft.cpp8
1 files changed, 6 insertions, 2 deletions
diff --git a/src/gui/text/qfontengine_ft.cpp b/src/gui/text/qfontengine_ft.cpp
index 8dfabd48ad..89bc72ae4f 100644
--- a/src/gui/text/qfontengine_ft.cpp
+++ b/src/gui/text/qfontengine_ft.cpp
@@ -717,8 +717,12 @@ bool QFontEngineFT::init(FaceId faceId, bool antialias, GlyphFormat format,
FT_Set_Transform(face, &matrix, 0);
freetype->matrix = matrix;
// fake bold
- if ((fontDef.weight >= QFont::Bold) && !(face->style_flags & FT_STYLE_FLAG_BOLD) && !FT_IS_FIXED_WIDTH(face))
- embolden = true;
+ if ((fontDef.weight >= QFont::Bold) && !(face->style_flags & FT_STYLE_FLAG_BOLD) && !FT_IS_FIXED_WIDTH(face)) {
+ if (const TT_OS2 *os2 = reinterpret_cast<const TT_OS2 *>(FT_Get_Sfnt_Table(face, ft_sfnt_os2))) {
+ if (os2->usWeightClass < 750)
+ embolden = true;
+ }
+ }
// underline metrics
line_thickness = QFixed::fromFixed(FT_MulFix(face->underline_thickness, face->size->metrics.y_scale));
underline_position = QFixed::fromFixed(-FT_MulFix(face->underline_position, face->size->metrics.y_scale));