1 files changed, 119 insertions, 0 deletions
diff --git a/src/platformsupport/fontdatabases/windows/qwindowsfontdatabasebase.cpp b/src/platformsupport/fontdatabases/windows/qwindowsfontdatabasebase.cpp
index 5b8707cdec..e6dee54d84 100644
--- a/src/platformsupport/fontdatabases/windows/qwindowsfontdatabasebase.cpp
+++ b/src/platformsupport/fontdatabases/windows/qwindowsfontdatabasebase.cpp
@@ -866,4 +866,123 @@ QFontEngine *QWindowsFontDatabaseBase::fontEngine(const QByteArray &fontData, qr
     return fontEngine;
 }
 
+QString QWindowsFontDatabaseBase::familyForStyleHint(QFont::StyleHint styleHint)
+{
+    switch (styleHint) {
+    case QFont::Times:
+        return QStringLiteral("Times New Roman");
+    case QFont::Courier:
+        return QStringLiteral("Courier New");
+    case QFont::Monospace:
+        return QStringLiteral("Courier New");
+    case QFont::Cursive:
+        return QStringLiteral("Comic Sans MS");
+    case QFont::Fantasy:
+        return QStringLiteral("Impact");
+    case QFont::Decorative:
+        return QStringLiteral("Old English");
+    case QFont::Helvetica:
+        return QStringLiteral("Arial");
+    case QFont::System:
+    default:
+        break;
+    }
+    return QStringLiteral("MS Shell Dlg 2");
+}
+
+// Creation functions
+
+static const char *other_tryFonts[] = {
+    "Arial",
+    "MS UI Gothic",
+    "Gulim",
+    "SimSun",
+    "PMingLiU",
+    "Arial Unicode MS",
+    0
+};
+
+static const char *jp_tryFonts [] = {
+    "MS UI Gothic",
+    "Arial",
+    "Gulim",
+    "SimSun",
+    "PMingLiU",
+    "Arial Unicode MS",
+    0
+};
+
+static const char *ch_CN_tryFonts [] = {
+    "SimSun",
+    "Arial",
+    "PMingLiU",
+    "Gulim",
+    "MS UI Gothic",
+    "Arial Unicode MS",
+    0
+};
+
+static const char *ch_TW_tryFonts [] = {
+    "PMingLiU",
+    "Arial",
+    "SimSun",
+    "Gulim",
+    "MS UI Gothic",
+    "Arial Unicode MS",
+    0
+};
+
+static const char *kr_tryFonts[] = {
+    "Gulim",
+    "Arial",
+    "PMingLiU",
+    "SimSun",
+    "MS UI Gothic",
+    "Arial Unicode MS",
+    0
+};
+
+static const char **tryFonts = nullptr;
+
+QStringList QWindowsFontDatabaseBase::extraTryFontsForFamily(const QString &family)
+{
+    QStringList result;
+    QFontDatabase db;
+    if (!db.writingSystems(family).contains(QFontDatabase::Symbol)) {
+        if (!tryFonts) {
+            LANGID lid = GetUserDefaultLangID();
+            switch (lid&0xff) {
+            case LANG_CHINESE: // Chinese
+                if ( lid == 0x0804 || lid == 0x1004) // China mainland and Singapore
+                    tryFonts = ch_CN_tryFonts;
+                else
+                    tryFonts = ch_TW_tryFonts; // Taiwan, Hong Kong and Macau
+                break;
+            case LANG_JAPANESE:
+                tryFonts = jp_tryFonts;
+                break;
+            case LANG_KOREAN:
+                tryFonts = kr_tryFonts;
+                break;
+            default:
+                tryFonts = other_tryFonts;
+                break;
+            }
+        }
+        QFontDatabase db;
+        const QStringList families = db.families();
+        const char **tf = tryFonts;
+        while (tf && *tf) {
+            // QTBUG-31689, family might be an English alias for a localized font name.
+            const QString family = QString::fromLatin1(*tf);
+            if (families.contains(family) || db.hasFamily(family))
+                result << family;
+            ++tf;
+        }
+    }
+    result.append(QStringLiteral("Segoe UI Emoji"));
+    result.append(QStringLiteral("Segoe UI Symbol"));
+    return result;
+}
+
 QT_END_NAMESPACE