86 lines
2.8 KiB
Diff
86 lines
2.8 KiB
Diff
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diff --git a/src/gui/text/unix/qfontconfigdatabase.cpp b/src/gui/text/unix/qfontconfigdatabase.cpp
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index 474644b8..f61e6e83 100644
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--- a/src/gui/text/unix/qfontconfigdatabase.cpp
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+++ b/src/gui/text/unix/qfontconfigdatabase.cpp
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@@ -592,6 +592,7 @@ void QFontconfigDatabase::populateFontDatabase()
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++f;
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}
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+ cacheEmojiFontFamily();
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//QPA has very lazy population of the font db. We want it to be initialized when
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//QApplication is constructed, so that the population procedure can do something like this to
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//set the default font
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@@ -735,6 +736,9 @@ QStringList QFontconfigDatabase::fallbacksForFamily(const QString &family, QFont
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if (!pattern)
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return fallbackFamilies;
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+ if (!m_cacheEmojiFontFamily.isEmpty())
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+ fallbackFamilies << m_cacheEmojiFontFamily;
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+
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FcValue value;
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value.type = FcTypeString;
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const QByteArray cs = family.toUtf8();
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@@ -1016,4 +1020,47 @@ void QFontconfigDatabase::setupFontEngine(QFontEngineFT *engine, const QFontDef
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engine->glyphFormat = format;
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}
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+void QFontconfigDatabase::cacheEmojiFontFamily()
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+{
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+ FcPattern *pattern;
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+ pattern = FcPatternCreate();
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+
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+ FcValue value;
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+ value.type = FcTypeString;
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+ value.u.s = (const FcChar8 *)"emoji";
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+ FcPatternAdd(pattern,FC_FAMILY,value,true);
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+
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+ FcLangSet *ls = FcLangSetCreate();
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+ FcLangSetAdd(ls, (const FcChar8*)"und-zsye");
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+ FcPatternAddLangSet(pattern, FC_LANG, ls);
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+
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+ FcConfigSubstitute(nullptr, pattern, FcMatchPattern);
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+ FcDefaultSubstitute(pattern);
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+
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+ FcResult result = FcResultMatch;
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+ FcFontSet *fontSet = FcFontSort(nullptr,pattern,FcTrue,nullptr,&result);
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+ FcPatternDestroy(pattern);
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+
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+ if (fontSet) {
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+ for (int i = 0; i < fontSet->nfont; i++) {
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+ FcChar8 *value = nullptr;
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+ if (FcPatternGetString(fontSet->fonts[i], FC_FAMILY, 0, &value) != FcResultMatch)
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+ continue;
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+
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+ FcLangSet *rls = nullptr;
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+ if (FcPatternGetLangSet(fontSet->fonts[i], FC_LANG, 0, &rls) != FcResultMatch)
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+ continue;
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+
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+ if (!FcLangSetContains(rls, ls))
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+ continue;
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+
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+ m_cacheEmojiFontFamily = QString::fromUtf8((const char *)value);
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+ break;
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+ }
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+ FcFontSetDestroy(fontSet);
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+ }
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+
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+ FcLangSetDestroy(ls);
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+}
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+
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QT_END_NAMESPACE
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diff --git a/src/gui/text/unix/qfontconfigdatabase_p.h b/src/gui/text/unix/qfontconfigdatabase_p.h
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index cf15306e..90b94087 100644
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--- a/src/gui/text/unix/qfontconfigdatabase_p.h
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+++ b/src/gui/text/unix/qfontconfigdatabase_p.h
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@@ -37,7 +37,10 @@ public:
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QFont defaultFont() const override;
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private:
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+ void cacheEmojiFontFamily();
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void setupFontEngine(QFontEngineFT *engine, const QFontDef &fontDef) const;
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+
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+ QString m_cacheEmojiFontFamily;
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};
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QT_END_NAMESPACE
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