From 47462ffd68023efd5497d50e02c56ed571b838c5 Mon Sep 17 00:00:00 2001 From: Jiang Jiang Date: Wed, 30 May 2012 16:27:09 +0200 Subject: [PATCH] Make fontconfig default font locale aware Application default font should be locale aware in fontconfig db as in other font databases. We use a hack to obtain the system default language parsed by fontconfig and use that to find out the preferred font for a given language (such font list is edited by fontconfig from fonts.conf in FcConfigSubstitute() process). Change-Id: I99bb8dd29d2dde2c8019ed8e77f5bfc09ddf3ca5 Reviewed-by: Eskil Abrahamsen Blomfeldt --- .../fontconfig/qfontconfigdatabase.cpp | 25 ++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp b/src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp index 86a01d8f3b0..f980a40de4f 100644 --- a/src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp +++ b/src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp @@ -751,7 +751,30 @@ QString QFontconfigDatabase::resolveFontFamilyAlias(const QString &family) const QFont QFontconfigDatabase::defaultFont() const { - return QFont(resolveFontFamilyAlias(QString())); + // Hack to get system default language until FcGetDefaultLangs() + // is exported (https://bugs.freedesktop.org/show_bug.cgi?id=32853) + // or https://bugs.freedesktop.org/show_bug.cgi?id=35482 is fixed + FcPattern *dummy = FcPatternCreate(); + FcDefaultSubstitute(dummy); + FcChar8 *lang = 0; + FcResult res = FcPatternGetString(dummy, FC_LANG, 0, &lang); + + FcPattern *pattern = FcPatternCreate(); + if (res == FcResultMatch) { + // Make defaultFont pattern matching locale language aware, because + // certain FC_LANG based custom rules may happen in FcConfigSubstitute() + FcPatternAddString(pattern, FC_LANG, lang); + } + FcConfigSubstitute(0, pattern, FcMatchPattern); + FcDefaultSubstitute(pattern); + + FcChar8 *familyAfterSubstitution = 0; + FcPatternGetString(pattern, FC_FAMILY, 0, &familyAfterSubstitution); + QString resolved = QString::fromUtf8((const char *) familyAfterSubstitution); + FcPatternDestroy(pattern); + FcPatternDestroy(dummy); + + return QFont(resolved); } QT_END_NAMESPACE