Attachment 1952248 Details for Bug 2179854 – Draft patch to fix the bold style issue

[patch] Draft patch to fix the bold style issue

qtbase-fix-bold-style-font.patch (text/plain), 1.22 KB, created by Peng Wu on 2023-03-21 04:21:13 UTC

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Creator: Peng Wu

Created: 2023-03-21 04:21:13 UTC

Size: 1.22 KB

patch

obsolete

>The named instance comes from a GX or OpenType variation font, assume that the font contains the bold style.
>
>
>Index: qtbase-everywhere-src-5.15.8/src/platformsupport/fontdatabases/freetype/qfontengine_ft.cpp
>===================================================================
>--- qtbase-everywhere-src-5.15.8.orig/src/platformsupport/fontdatabases/freetype/qfontengine_ft.cpp
>+++ qtbase-everywhere-src-5.15.8/src/platformsupport/fontdatabases/freetype/qfontengine_ft.cpp
>@@ -748,7 +748,7 @@ bool QFontEngineFT::init(FaceId faceId,
>         FT_Set_Transform(face, &matrix, nullptr);
>         freetype->matrix = matrix;
>         // fake bold
>-        if ((fontDef.weight >= QFont::Bold) && !(face->style_flags & FT_STYLE_FLAG_BOLD) && !FT_IS_FIXED_WIDTH(face) && !qEnvironmentVariableIsSet("QT_NO_SYNTHESIZED_BOLD")) {
>+        if ((fontDef.weight >= QFont::Bold) && !(face->style_flags & FT_STYLE_FLAG_BOLD) && !FT_IS_FIXED_WIDTH(face) && !FT_IS_NAMED_INSTANCE(face) && !qEnvironmentVariableIsSet("QT_NO_SYNTHESIZED_BOLD")) {
>             if (const TT_OS2 *os2 = reinterpret_cast<const TT_OS2 *>(FT_Get_Sfnt_Table(face, ft_sfnt_os2))) {
>                 if (os2->usWeightClass < 700 && fontDef.pixelSize < 64)
>                     embolden = true;

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Attachments on bug 2179854: 1952248 | 1952660 | 1953537 | 1953864 | 1954106 | 1954381 | 1954384