Windows: Freetype: Load fonts from the user locations

Since Windows 10 update 1809 it is possible to install fonts as a user
so they are only available for use by the user and not on the system.
So this location in the registry needs to be checked as well when
looking for available fonts.

Fixes: QTBUG-73241
Change-Id: I5d808e38b80dde8189fe8c549a6524bd559e30c7
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>

1 files changed, 24 insertions, 21 deletions

diff --git a/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase_ft.cpp b/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase_ft.cpp
index f68ea54dcf..db2186644b 100644
--- a/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase_ft.cpp
+++ b/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase_ft.cpp
@@ -115,30 +115,33 @@ static FontKeys &fontKeys()
 {
     static FontKeys result;
     if (result.isEmpty()) {
-        const QSettings fontRegistry(QStringLiteral("HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Fonts"),
-                                     QSettings::NativeFormat);
-        const QStringList allKeys = fontRegistry.allKeys();
-        const QString trueType = QStringLiteral("(TrueType)");
+        const QStringList keys = { QStringLiteral("HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Fonts"),
+                                   QStringLiteral("HKEY_CURRENT_USER\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Fonts") };
+        for (const auto key : keys) {
+            const QSettings fontRegistry(key, QSettings::NativeFormat);
+            const QStringList allKeys = fontRegistry.allKeys();
+            const QString trueType = QStringLiteral("(TrueType)");
 #if QT_CONFIG(regularexpression)
-        const QRegularExpression sizeListMatch(QStringLiteral("\\s(\\d+,)+\\d+"));
+            const QRegularExpression sizeListMatch(QStringLiteral("\\s(\\d+,)+\\d+"));
 #else
-        const QRegExp sizeListMatch(QLatin1String("\\s(\\d+,)+\\d+"));
+            const QRegExp sizeListMatch(QLatin1String("\\s(\\d+,)+\\d+"));
 #endif
-        Q_ASSERT(sizeListMatch.isValid());
-        const int size = allKeys.size();
-        result.reserve(size);
-        for (int i = 0; i < size; ++i) {
-            FontKey fontKey;
-            const QString &registryFontKey = allKeys.at(i);
-            fontKey.fileName = fontRegistry.value(registryFontKey).toString();
-            QString realKey = registryFontKey;
-            realKey.remove(trueType);
-            realKey.remove(sizeListMatch);
-            const auto fontNames = QStringRef(&realKey).trimmed().split(QLatin1Char('&'));
-            fontKey.fontNames.reserve(fontNames.size());
-            for (const QStringRef &fontName : fontNames)
-                fontKey.fontNames.append(fontName.trimmed().toString());
-            result.append(fontKey);
+            Q_ASSERT(sizeListMatch.isValid());
+            const int size = allKeys.size();
+            result.reserve(result.size() + size);
+            for (int i = 0; i < size; ++i) {
+                FontKey fontKey;
+                const QString &registryFontKey = allKeys.at(i);
+                fontKey.fileName = fontRegistry.value(registryFontKey).toString();
+                QString realKey = registryFontKey;
+                realKey.remove(trueType);
+                realKey.remove(sizeListMatch);
+                const auto fontNames = QStringRef(&realKey).trimmed().split(QLatin1Char('&'));
+                fontKey.fontNames.reserve(fontNames.size());
+                for (const QStringRef &fontName : fontNames)
+                    fontKey.fontNames.append(fontName.trimmed().toString());
+                result.append(fontKey);
+            }
         }
     }
     return result;