Replace most use of QVariant::type and occurrences of QVariant::Type

I made a clazy automated check that replaced the use of QVariant::Type
by the equivalent in QMetaType.
This has been deprecated since Qt 5.0, but many uses were not yet removed.

In addition, there was some manual changes to fix the compilation errors.

Adapted the Private API of QDateTimeParser and QMimeDataPrivate
and adjust QDateTimeEdit and QSpinBox.

QVariant(QVariant::Invalid) in qstylesheet made no sense.

But note that in QVariant::save, we actually wanted to use the non-user type.

In the SQL module, many changes were actually reverted because the API
still expects QVarient::Type.

Change-Id: I98c368490e4ee465ed3a3b63bda8b8eaa50ea67e
Reviewed-by: Lars Knoll <[email protected]>

109 files changed, 947 insertions, 936 deletions

diff --git a/examples/corelib/serialization/convert/cborconverter.cpp b/examples/corelib/serialization/convert/cborconverter.cpp
index 60410ed26a5..77df367e50c 100644
--- a/examples/corelib/serialization/convert/cborconverter.cpp
+++ b/examples/corelib/serialization/convert/cborconverter.cpp
@@ -134,7 +134,7 @@ static QVariant convertCborValue(const QCborValue &value)
 enum TrimFloatingPoint { Double, Float, Float16 };
 static QCborValue convertFromVariant(const QVariant &v, TrimFloatingPoint fpTrimming)
 {
-    if (v.userType() == QVariant::List) {
+    if (v.userType() == QMetaType::QVariantList) {
         const QVariantList list = v.toList();
         QCborArray array;
         for (const QVariant &v : list)
@@ -152,7 +152,7 @@ static QCborValue convertFromVariant(const QVariant &v, TrimFloatingPoint fpTrim
         return map;
     }
 
-    if (v.userType() == QVariant::Double && fpTrimming != Double) {
+    if (v.userType() == QMetaType::Double && fpTrimming != Double) {
         float f = float(v.toDouble());
         if (fpTrimming == Float16)
             return float(qfloat16(f));
diff --git a/examples/corelib/serialization/convert/datastreamconverter.cpp b/examples/corelib/serialization/convert/datastreamconverter.cpp
index 7e9f5e1bdcb..6f0ca41ff57 100644
--- a/examples/corelib/serialization/convert/datastreamconverter.cpp
+++ b/examples/corelib/serialization/convert/datastreamconverter.cpp
@@ -96,8 +96,8 @@ static QString dumpVariant(const QVariant &v, const QString &indent = QLatin1Str
     QString indented = indent + QLatin1String("  ");
 
     int type = v.userType();
-    if (type == qMetaTypeId<VariantOrderedMap>() || type == QVariant::Map) {
-        const auto map = (type == QVariant::Map) ?
+    if (type == qMetaTypeId<VariantOrderedMap>() || type == QMetaType::QVariantMap) {
+        const auto map = (type == QMetaType::QVariantMap) ?
                     VariantOrderedMap(v.toMap()) : qvariant_cast<VariantOrderedMap>(v);
 
         result = QLatin1String("Map {");
@@ -109,7 +109,7 @@ static QString dumpVariant(const QVariant &v, const QString &indent = QLatin1Str
         }
         result.chop(1);             // remove comma
         result += indent + QLatin1String("},");
-    } else if (type == QVariant::List) {
+    } else if (type == QMetaType::QVariantList) {
         const QVariantList list = v.toList();
 
         result = QLatin1String("List [");
diff --git a/examples/corelib/serialization/convert/textconverter.cpp b/examples/corelib/serialization/convert/textconverter.cpp
index 7aed08f96c3..ae03b9a334b 100644
--- a/examples/corelib/serialization/convert/textconverter.cpp
+++ b/examples/corelib/serialization/convert/textconverter.cpp
@@ -56,21 +56,21 @@
 static void dumpVariant(QTextStream &out, const QVariant &v)
 {
     switch (v.userType()) {
-    case QVariant::List: {
+    case QMetaType::QVariantList: {
         const QVariantList list = v.toList();
         for (const QVariant &item : list)
             dumpVariant(out, item);
         break;
     }
 
-    case QVariant::String: {
+    case QMetaType::QString: {
         const QStringList list = v.toStringList();
         for (const QString &s : list)
             out << s << Qt::endl;
         break;
     }
 
-    case QVariant::Map: {
+    case QMetaType::QVariantMap: {
         const QVariantMap map = v.toMap();
         for (auto it = map.begin(); it != map.end(); ++it) {
             out << it.key() << " => ";
diff --git a/examples/corelib/serialization/convert/xmlconverter.cpp b/examples/corelib/serialization/convert/xmlconverter.cpp
index d9e724dfe13..42cb10100ad 100644
--- a/examples/corelib/serialization/convert/xmlconverter.cpp
+++ b/examples/corelib/serialization/convert/xmlconverter.cpp
@@ -284,18 +284,18 @@ static QVariant variantFromXml(QXmlStreamReader &xml, Converter::Options options
         ba.resize(n);
         result = ba;
     } else {
-        int id = QVariant::Invalid;
+        int id = QMetaType::UnknownType;
         if (type == QLatin1String("datetime"))
-            id = QVariant::DateTime;
+            id = QMetaType::QDateTime;
         else if (type == QLatin1String("url"))
-            id = QVariant::Url;
+            id = QMetaType::QUrl;
         else if (type == QLatin1String("uuid"))
-            id = QVariant::Uuid;
+            id = QMetaType::QUuid;
         else if (type == QLatin1String("regex"))
-            id = QVariant::RegularExpression;
+            id = QMetaType::QRegularExpression;
         else
             id = QMetaType::type(type.toLatin1());
-        if (id == QVariant::Invalid) {
+        if (id == QMetaType::UnknownType) {
             fprintf(stderr, "%lld:%lld: Invalid XML: unknown type '%s'.\n",
                     xml.lineNumber(), xml.columnNumber(), qPrintable(type.toString()));
             exit(EXIT_FAILURE);
@@ -327,14 +327,14 @@ static QVariant variantFromXml(QXmlStreamReader &xml, Converter::Options options
 static void variantToXml(QXmlStreamWriter &xml, const QVariant &v)
 {
     int type = v.userType();
-    if (type == QVariant::List) {
+    if (type == QMetaType::QVariantList) {
         QVariantList list = v.toList();
         xml.writeStartElement("list");
         for (const QVariant &v : list)
             variantToXml(xml, v);
         xml.writeEndElement();
-    } else if (type == QVariant::Map || type == qMetaTypeId<VariantOrderedMap>()) {
-        const VariantOrderedMap map = (type == QVariant::Map) ?
+    } else if (type == QMetaType::QVariantMap || type == qMetaTypeId<VariantOrderedMap>()) {
+        const VariantOrderedMap map = (type == QMetaType::QVariantMap) ?
                     VariantOrderedMap(v.toMap()) :
                     qvariant_cast<VariantOrderedMap>(v);
 
@@ -433,7 +433,7 @@ static void variantToXml(QXmlStreamWriter &xml, const QVariant &v)
                 // does this convert to string?
                 const char *typeName = v.typeName();
                 QVariant copy = v;
-                if (copy.convert(QVariant::String)) {
+                if (copy.convert(QMetaType::QString)) {
                     xml.writeAttribute(typeString, QString::fromLatin1(typeName));
                     xml.writeCharacters(copy.toString());
                 } else {
diff --git a/examples/network/torrent/trackerclient.cpp b/examples/network/torrent/trackerclient.cpp
index 540ab315577..a50a49fd64d 100644
--- a/examples/network/torrent/trackerclient.cpp
+++ b/examples/network/torrent/trackerclient.cpp
@@ -209,7 +209,7 @@ void TrackerClient::httpRequestDone(QNetworkReply *reply)
         // store it
         peers.clear();
         QVariant peerEntry = dict.value("peers");
-        if (peerEntry.type() == QVariant::List) {
+        if (peerEntry.userType() == QMetaType::QVariantList) {
             QList<QVariant> peerTmp = peerEntry.toList();
             for (int i = 0; i < peerTmp.size(); ++i) {
                 TorrentPeer tmp;
diff --git a/examples/widgets/itemviews/coloreditorfactory/window.cpp b/examples/widgets/itemviews/coloreditorfactory/window.cpp
index e4a9379d8fe..25e196a80c8 100644
--- a/examples/widgets/itemviews/coloreditorfactory/window.cpp
+++ b/examples/widgets/itemviews/coloreditorfactory/window.cpp
@@ -61,7 +61,7 @@ Window::Window()
     QItemEditorCreatorBase *colorListCreator =
         new QStandardItemEditorCreator<ColorListEditor>();
 
-    factory->registerEditor(QVariant::Color, colorListCreator);
+    factory->registerEditor(QMetaType::QColor, colorListCreator);
 
     QItemEditorFactory::setDefaultFactory(factory);
 
diff --git a/examples/widgets/itemviews/customsortfiltermodel/mysortfilterproxymodel.cpp b/examples/widgets/itemviews/customsortfiltermodel/mysortfilterproxymodel.cpp
index 4753d04d9b4..b0b4017e62a 100644
--- a/examples/widgets/itemviews/customsortfiltermodel/mysortfilterproxymodel.cpp
+++ b/examples/widgets/itemviews/customsortfiltermodel/mysortfilterproxymodel.cpp
@@ -98,7 +98,7 @@ bool MySortFilterProxyModel::lessThan(const QModelIndex &left,
 //! [4]
 
 //! [6]
-    if (leftData.type() == QVariant::DateTime) {
+    if (leftData.userType() == QMetaType::QDateTime) {
         return leftData.toDateTime() < rightData.toDateTime();
     } else {
         static const QRegularExpression emailPattern("[\\w\\.]*@[\\w\\.]*");
diff --git a/examples/widgets/tools/settingseditor/settingstree.cpp b/examples/widgets/tools/settingseditor/settingstree.cpp
index 49d299bf72d..9132368e4a5 100644
--- a/examples/widgets/tools/settingseditor/settingstree.cpp
+++ b/examples/widgets/tools/settingseditor/settingstree.cpp
@@ -208,7 +208,7 @@ void SettingsTree::updateChildItems(QTreeWidgetItem *parent)
         }
 
         QVariant value = settings->value(key);
-        if (value.type() == QVariant::Invalid) {
+        if (value.userType() == QMetaType::UnknownType) {
             child->setText(1, "Invalid");
         } else {
             child->setText(1, value.typeName());
diff --git a/examples/widgets/tools/settingseditor/variantdelegate.cpp b/examples/widgets/tools/settingseditor/variantdelegate.cpp
index 9772fe8a41d..eb822f0dc26 100644
--- a/examples/widgets/tools/settingseditor/variantdelegate.cpp
+++ b/examples/widgets/tools/settingseditor/variantdelegate.cpp
@@ -81,7 +81,7 @@ void VariantDelegate::paint(QPainter *painter,
 {
     if (index.column() == 2) {
         QVariant value = index.model()->data(index, Qt::UserRole);
-        if (!isSupportedType(value.type())) {
+        if (!isSupportedType(value.userType())) {
             QStyleOptionViewItem myOption = option;
             myOption.state &= ~QStyle::State_Enabled;
             QStyledItemDelegate::paint(painter, myOption, index);
@@ -100,7 +100,7 @@ QWidget *VariantDelegate::createEditor(QWidget *parent,
         return nullptr;
 
     QVariant originalValue = index.model()->data(index, Qt::UserRole);
-    if (!isSupportedType(originalValue.type()))
+    if (!isSupportedType(originalValue.userType()))
         return nullptr;
 
     QLineEdit *lineEdit = new QLineEdit(parent);
@@ -108,46 +108,46 @@ QWidget *VariantDelegate::createEditor(QWidget *parent,
 
     QRegularExpression regExp;
 
-    switch (originalValue.type()) {
-    case QVariant::Bool:
+    switch (originalValue.userType()) {
+    case QMetaType::Bool:
         regExp = boolExp;
         break;
-    case QVariant::ByteArray:
+    case QMetaType::QByteArray:
         regExp = byteArrayExp;
         break;
-    case QVariant::Char:
+    case QMetaType::QChar:
         regExp = charExp;
         break;
-    case QVariant::Color:
+    case QMetaType::QColor:
         regExp = colorExp;
         break;
-    case QVariant::Date:
+    case QMetaType::QDate:
         regExp = dateExp;
         break;
-    case QVariant::DateTime:
+    case QMetaType::QDateTime:
         regExp = dateTimeExp;
         break;
-    case QVariant::Double:
+    case QMetaType::Double:
         regExp = doubleExp;
         break;
-    case QVariant::Int:
-    case QVariant::LongLong:
+    case QMetaType::Int:
+    case QMetaType::LongLong:
         regExp = signedIntegerExp;
         break;
-    case QVariant::Point:
+    case QMetaType::QPoint:
         regExp = pointExp;
         break;
-    case QVariant::Rect:
+    case QMetaType::QRect:
         regExp = rectExp;
         break;
-    case QVariant::Size:
+    case QMetaType::QSize:
         regExp = sizeExp;
         break;
-    case QVariant::Time:
+    case QMetaType::QTime:
         regExp = timeExp;
         break;
-    case QVariant::UInt:
-    case QVariant::ULongLong:
+    case QMetaType::UInt:
+    case QMetaType::ULongLong:
         regExp = unsignedIntegerExp;
         break;
     default:
@@ -189,18 +189,18 @@ void VariantDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
     QVariant value;
     QRegularExpressionMatch match;
 
-    switch (originalValue.type()) {
-    case QVariant::Char:
+    switch (originalValue.userType()) {
+    case QMetaType::QChar:
         value = text.at(0);
         break;
-    case QVariant::Color:
+    case QMetaType::QColor:
         match = colorExp.match(text);
         value = QColor(qMin(match.captured(1).toInt(), 255),
                        qMin(match.captured(2).toInt(), 255),
                        qMin(match.captured(3).toInt(), 255),
                        qMin(match.captured(4).toInt(), 255));
         break;
-    case QVariant::Date:
+    case QMetaType::QDate:
         {
             QDate date = QDate::fromString(text, Qt::ISODate);
             if (!date.isValid())
@@ -208,7 +208,7 @@ void VariantDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
             value = date;
         }
         break;
-    case QVariant::DateTime:
+    case QMetaType::QDateTime:
         {
             QDateTime dateTime = QDateTime::fromString(text, Qt::ISODate);
             if (!dateTime.isValid())
@@ -216,23 +216,23 @@ void VariantDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
             value = dateTime;
         }
         break;
-    case QVariant::Point:
+    case QMetaType::QPoint:
         match = pointExp.match(text);
         value = QPoint(match.captured(1).toInt(), match.captured(2).toInt());
         break;
-    case QVariant::Rect:
+    case QMetaType::QRect:
         match = rectExp.match(text);
         value = QRect(match.captured(1).toInt(), match.captured(2).toInt(),
                       match.captured(3).toInt(), match.captured(4).toInt());
         break;
-    case QVariant::Size:
+    case QMetaType::QSize:
         match = sizeExp.match(text);
         value = QSize(match.captured(1).toInt(), match.captured(2).toInt());
         break;
-    case QVariant::StringList:
+    case QMetaType::QStringList:
         value = text.split(',');
         break;
-    case QVariant::Time:
+    case QMetaType::QTime:
         {
             QTime time = QTime::fromString(text, Qt::ISODate);
             if (!time.isValid())
@@ -242,33 +242,33 @@ void VariantDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
         break;
     default:
         value = text;
-        value.convert(originalValue.type());
+        value.convert(originalValue.userType());
     }
 
     model->setData(index, displayText(value), Qt::DisplayRole);
     model->setData(index, value, Qt::UserRole);
 }
 
-bool VariantDelegate::isSupportedType(QVariant::Type type)
+bool VariantDelegate::isSupportedType(int type)
 {
     switch (type) {
-    case QVariant::Bool:
-    case QVariant::ByteArray:
-    case QVariant::Char:
-    case QVariant::Color:
-    case QVariant::Date:
-    case QVariant::DateTime:
-    case QVariant::Double:
-    case QVariant::Int:
-    case QVariant::LongLong:
-    case QVariant::Point:
-    case QVariant::Rect:
-    case QVariant::Size:
-    case QVariant::String:
-    case QVariant::StringList:
-    case QVariant::Time:
-    case QVariant::UInt:
-    case QVariant::ULongLong:
+    case QMetaType::Bool:
+    case QMetaType::QByteArray:
+    case QMetaType::QChar:
+    case QMetaType::QColor:
+    case QMetaType::QDate:
+    case QMetaType::QDateTime:
+    case QMetaType::Double:
+    case QMetaType::Int:
+    case QMetaType::LongLong:
+    case QMetaType::QPoint:
+    case QMetaType::QRect:
+    case QMetaType::QSize:
+    case QMetaType::QString:
+    case QMetaType::QStringList:
+    case QMetaType::QTime:
+    case QMetaType::UInt:
+    case QMetaType::ULongLong:
         return true;
     default:
         return false;
@@ -277,50 +277,50 @@ bool VariantDelegate::isSupportedType(QVariant::Type type)
 
 QString VariantDelegate::displayText(const QVariant &value)
 {
-    switch (value.type()) {
-    case QVariant::Bool:
-    case QVariant::ByteArray:
-    case QVariant::Char:
-    case QVariant::Double:
-    case QVariant::Int:
-    case QVariant::LongLong:
-    case QVariant::String:
-    case QVariant::UInt:
-    case QVariant::ULongLong:
+    switch (value.userType()) {
+    case QMetaType::Bool:
+    case QMetaType::QByteArray:
+    case QMetaType::QChar:
+    case QMetaType::Double:
+    case QMetaType::Int:
+    case QMetaType::LongLong:
+    case QMetaType::QString:
+    case QMetaType::UInt:
+    case QMetaType::ULongLong:
         return value.toString();
-    case QVariant::Color:
+    case QMetaType::QColor:
         {
             QColor color = qvariant_cast<QColor>(value);
             return QString("(%1,%2,%3,%4)")
                    .arg(color.red()).arg(color.green())
                    .arg(color.blue()).arg(color.alpha());
         }
-    case QVariant::Date:
+    case QMetaType::QDate:
         return value.toDate().toString(Qt::ISODate);
-    case QVariant::DateTime:
+    case QMetaType::QDateTime:
         return value.toDateTime().toString(Qt::ISODate);
-    case QVariant::Invalid:
+    case QMetaType::UnknownType:
         return "<Invalid>";
-    case QVariant::Point:
+    case QMetaType::QPoint:
         {
             QPoint point = value.toPoint();
             return QString("(%1,%2)").arg(point.x()).arg(point.y());
         }
-    case QVariant::Rect:
+    case QMetaType::QRect:
         {
             QRect rect = value.toRect();
             return QString("(%1,%2,%3,%4)")
                    .arg(rect.x()).arg(rect.y())
                    .arg(rect.width()).arg(rect.height());
         }
-    case QVariant::Size:
+    case QMetaType::QSize:
         {
             QSize size = value.toSize();
             return QString("(%1,%2)").arg(size.width()).arg(size.height());
         }
-    case QVariant::StringList:
+    case QMetaType::QStringList:
         return value.toStringList().join(',');
-    case QVariant::Time:
+    case QMetaType::QTime:
         return value.toTime().toString(Qt::ISODate);
     default:
         break;
diff --git a/examples/widgets/tools/settingseditor/variantdelegate.h b/examples/widgets/tools/settingseditor/variantdelegate.h
index 68f21fa3f6c..96e44fd181d 100644
--- a/examples/widgets/tools/settingseditor/variantdelegate.h
+++ b/examples/widgets/tools/settingseditor/variantdelegate.h
@@ -69,7 +69,7 @@ public:
     void setModelData(QWidget *editor, QAbstractItemModel *model,
                       const QModelIndex &index) const override;
 
-    static bool isSupportedType(QVariant::Type type);
+    static bool isSupportedType(int type);
     static QString displayText(const QVariant &value);
 
 private:
diff --git a/src/corelib/animation/qpropertyanimation.cpp b/src/corelib/animation/qpropertyanimation.cpp
index c71a77e0732..d014b5c4413 100644
--- a/src/corelib/animation/qpropertyanimation.cpp
+++ b/src/corelib/animation/qpropertyanimation.cpp
@@ -92,7 +92,7 @@ QT_BEGIN_NAMESPACE
 void QPropertyAnimationPrivate::updateMetaProperty()
 {
     if (!target || propertyName.isEmpty()) {
-        propertyType = QVariant::Invalid;
+        propertyType = QMetaType::UnknownType;
         propertyIndex = -1;
         return;
     }
@@ -102,11 +102,11 @@ void QPropertyAnimationPrivate::updateMetaProperty()
     propertyType = targetValue->property(propertyName).userType();
     propertyIndex = targetValue->metaObject()->indexOfProperty(propertyName);
 
-    if (propertyType != QVariant::Invalid)
+    if (propertyType != QMetaType::UnknownType)
         convertValues(propertyType);
     if (propertyIndex == -1) {
         //there is no Q_PROPERTY on the object
-        propertyType = QVariant::Invalid;
+        propertyType = QMetaType::UnknownType;
         if (!targetValue->dynamicPropertyNames().contains(propertyName))
             qWarning("QPropertyAnimation: you're trying to animate a non-existing property %s of your QObject", propertyName.constData());
     } else if (!targetValue->metaObject()->property(propertyIndex).isWritable()) {
diff --git a/src/corelib/io/qsettings.cpp b/src/corelib/io/qsettings.cpp
index 9fc45e307db..b191397e7ee 100644
--- a/src/corelib/io/qsettings.cpp
+++ b/src/corelib/io/qsettings.cpp
@@ -396,12 +396,12 @@ QString QSettingsPrivate::variantToString(const QVariant &v)
 {
     QString result;
 
-    switch (v.type()) {
-        case QVariant::Invalid:
+    switch (v.userType()) {
+        case QMetaType::UnknownType:
             result = QLatin1String("@Invalid()");
             break;
 
-        case QVariant::ByteArray: {
+        case QMetaType::QByteArray: {
             QByteArray a = v.toByteArray();
             result = QLatin1String("@ByteArray(")
                      + QLatin1String(a.constData(), a.size())
@@ -409,14 +409,14 @@ QString QSettingsPrivate::variantToString(const QVariant &v)
             break;
         }
 
-        case QVariant::String:
-        case QVariant::LongLong:
-        case QVariant::ULongLong:
-        case QVariant::Int:
-        case QVariant::UInt:
-        case QVariant::Bool:
-        case QVariant::Double:
-        case QVariant::KeySequence: {
+        case QMetaType::QString:
+        case QMetaType::LongLong:
+        case QMetaType::ULongLong:
+        case QMetaType::Int:
+        case QMetaType::UInt:
+        case QMetaType::Bool:
+        case QMetaType::Double:
+        case QMetaType::QKeySequence: {
             result = v.toString();
             if (result.contains(QChar::Null))
                 result = QLatin1String("@String(") + result + QLatin1Char(')');
@@ -425,17 +425,17 @@ QString QSettingsPrivate::variantToString(const QVariant &v)
             break;
         }
 #ifndef QT_NO_GEOM_VARIANT
-        case QVariant::Rect: {
+        case QMetaType::QRect: {
             QRect r = qvariant_cast<QRect>(v);
             result = QString::asprintf("@Rect(%d %d %d %d)", r.x(), r.y(), r.width(), r.height());
             break;
         }
-        case QVariant::Size: {
+        case QMetaType::QSize: {
             QSize s = qvariant_cast<QSize>(v);
             result = QString::asprintf("@Size(%d %d)", s.width(), s.height());
             break;
         }
-        case QVariant::Point: {
+        case QMetaType::QPoint: {
             QPoint p = qvariant_cast<QPoint>(v);
             result = QString::asprintf("@Point(%d %d)", p.x(), p.y());
             break;
@@ -446,7 +446,7 @@ QString QSettingsPrivate::variantToString(const QVariant &v)
 #ifndef QT_NO_DATASTREAM
             QDataStream::Version version;
             const char *typeSpec;
-            if (v.type() == QVariant::DateTime) {
+            if (v.userType() == QMetaType::QDateTime) {
                 version = QDataStream::Qt_5_6;
                 typeSpec = "@DateTime(";
             } else {
@@ -1888,8 +1888,8 @@ bool QConfFileSettingsPrivate::writeIniFile(QIODevice &device, const ParsedSetti
                 QVariant(QString("foo")).toList() returns an empty
                 list, not a list containing "foo".
             */
-            if (value.type() == QVariant::StringList
-                    || (value.type() == QVariant::List && value.toList().size() != 1)) {
+            if (value.userType() == QMetaType::QStringList
+                    || (value.userType() == QMetaType::QVariantList && value.toList().size() != 1)) {
                 iniEscapedStringList(variantListToStringList(value.toList()), block, iniCodec);
             } else {
                 iniEscapedString(variantToString(value), block, iniCodec);
diff --git a/src/corelib/itemmodels/qabstractitemmodel.cpp b/src/corelib/itemmodels/qabstractitemmodel.cpp
index 46ac7036156..608407c1367 100644
--- a/src/corelib/itemmodels/qabstractitemmodel.cpp
+++ b/src/corelib/itemmodels/qabstractitemmodel.cpp
@@ -552,32 +552,32 @@ const QHash<int,QByteArray> &QAbstractItemModelPrivate::defaultRoleNames()
 bool QAbstractItemModelPrivate::isVariantLessThan(const QVariant &left, const QVariant &right,
                                                   Qt::CaseSensitivity cs, bool isLocaleAware)
 {
-    if (left.userType() == QVariant::Invalid)
+    if (left.userType() == QMetaType::UnknownType)
         return false;
-    if (right.userType() == QVariant::Invalid)
+    if (right.userType() == QMetaType::UnknownType)
         return true;
     switch (left.userType()) {
-    case QVariant::Int:
+    case QMetaType::Int:
         return left.toInt() < right.toInt();
-    case QVariant::UInt:
+    case QMetaType::UInt:
         return left.toUInt() < right.toUInt();
-    case QVariant::LongLong:
+    case QMetaType::LongLong:
         return left.toLongLong() < right.toLongLong();
-    case QVariant::ULongLong:
+    case QMetaType::ULongLong:
         return left.toULongLong() < right.toULongLong();
     case QMetaType::Float:
         return left.toFloat() < right.toFloat();
-    case QVariant::Double:
+    case QMetaType::Double:
         return left.toDouble() < right.toDouble();
-    case QVariant::Char:
+    case QMetaType::QChar:
         return left.toChar() < right.toChar();
-    case QVariant::Date:
+    case QMetaType::QDate:
         return left.toDate() < right.toDate();
-    case QVariant::Time:
+    case QMetaType::QTime:
         return left.toTime() < right.toTime();
-    case QVariant::DateTime:
+    case QMetaType::QDateTime:
         return left.toDateTime() < right.toDateTime();
-    case QVariant::String:
+    case QMetaType::QString:
     default:
         if (isLocaleAware)
             return left.toString().localeAwareCompare(right.toString()) < 0;
@@ -591,19 +591,19 @@ static uint typeOfVariant(const QVariant &value)
 {
     //return 0 for integer, 1 for floating point and 2 for other
     switch (value.userType()) {
-        case QVariant::Bool:
-        case QVariant::Int:
-        case QVariant::UInt:
-        case QVariant::LongLong:
-        case QVariant::ULongLong:
-        case QVariant::Char:
+        case QMetaType::Bool:
+        case QMetaType::Int:
+        case QMetaType::UInt:
+        case QMetaType::LongLong:
+        case QMetaType::ULongLong:
+        case QMetaType::QChar:
         case QMetaType::Short:
         case QMetaType::UShort:
         case QMetaType::UChar:
         case QMetaType::ULong:
         case QMetaType::Long:
             return 0;
-        case QVariant::Double:
+        case QMetaType::Double:
         case QMetaType::Float:
             return 1;
         default:
@@ -2379,7 +2379,7 @@ QModelIndexList QAbstractItemModel::match(const QModelIndex &start, int role,
             } else { // QString or regular expression based matching
                 if (matchType == Qt::MatchRegularExpression) {
                     if (rx.pattern().isEmpty()) {
-                        if (value.type() == QVariant::RegularExpression) {
+                        if (value.userType() == QMetaType::QRegularExpression) {
                             rx = value.toRegularExpression();
                         } else {
                             rx.setPattern(value.toString());
diff --git a/src/corelib/kernel/qmetaobject.cpp b/src/corelib/kernel/qmetaobject.cpp
index fad47eee134..347fb1eb877 100644
--- a/src/corelib/kernel/qmetaobject.cpp
+++ b/src/corelib/kernel/qmetaobject.cpp
@@ -2982,7 +2982,7 @@ int QMetaProperty::userType() const
         if (type == QMetaType::UnknownType) {
             type = registerPropertyType();
             if (type == QMetaType::UnknownType)
-                return QVariant::Int; // Match behavior of QMetaType::type()
+                return QMetaType::Int; // Match behavior of QMetaType::type()
         }
         return type;
     }
@@ -3100,7 +3100,7 @@ QVariant QMetaProperty::read(const QObject *object) const
     if (!object || !mobj)
         return QVariant();
 
-    uint t = QVariant::Int;
+    uint t = QMetaType::Int;
     if (isEnumType()) {
         /*
           try to create a QVariant that can be converted to this enum
@@ -3177,9 +3177,9 @@ bool QMetaProperty::write(QObject *object, const QVariant &value) const
         return false;
 
     QVariant v = value;
-    uint t = QVariant::Invalid;
+    uint t = QMetaType::UnknownType;
     if (isEnumType()) {
-        if (v.type() == QVariant::String) {
+        if (v.userType() == QMetaType::QString) {
             bool ok;
             if (isFlagType())
                 v = QVariant(menum.keysToValue(value.toByteArray(), &ok));
@@ -3187,13 +3187,13 @@ bool QMetaProperty::write(QObject *object, const QVariant &value) const
                 v = QVariant(menum.keyToValue(value.toByteArray(), &ok));
             if (!ok)
                 return false;
-        } else if (v.type() != QVariant::Int && v.type() != QVariant::UInt) {
+        } else if (v.userType() != QMetaType::Int && v.userType() != QMetaType::UInt) {
             int enumMetaTypeId = QMetaType::type(qualifiedName(menum));
             if ((enumMetaTypeId == QMetaType::UnknownType) || (v.userType() != enumMetaTypeId) || !v.constData())
                 return false;
             v = QVariant(*reinterpret_cast<const int *>(v.constData()));
         }
-        v.convert(QVariant::Int);
+        v.convert(QMetaType::Int);
     } else {
         int handle = priv(mobj->d.data)->propertyData + 3*idx;
         const char *typeName = nullptr;
diff --git a/src/corelib/kernel/qmimedata.cpp b/src/corelib/kernel/qmimedata.cpp
index 00e5183eb16..fca258c9e3d 100644
--- a/src/corelib/kernel/qmimedata.cpp
+++ b/src/corelib/kernel/qmimedata.cpp
@@ -70,7 +70,7 @@ public:
     void setData(const QString &format, const QVariant &data);
     QVariant getData(const QString &format) const;
 
-    QVariant retrieveTypedData(const QString &format, QVariant::Type type) const;
+    QVariant retrieveTypedData(const QString &format, QMetaType::Type type) const;
 
     QVector<QMimeDataStruct> dataList;
 };
@@ -108,23 +108,23 @@ QVariant QMimeDataPrivate::getData(const QString &format) const
     return data;
 }
 
-QVariant QMimeDataPrivate::retrieveTypedData(const QString &format, QVariant::Type type) const
+QVariant QMimeDataPrivate::retrieveTypedData(const QString &format, QMetaType::Type type) const
 {
     Q_Q(const QMimeData);
 
-    QVariant data = q->retrieveData(format, type);
+    QVariant data = q->retrieveData(format, QVariant::Type(type));
 
     // Text data requested: fallback to URL data if available
     if (format == QLatin1String("text/plain") && !data.isValid()) {
-        data = retrieveTypedData(textUriListLiteral(), QVariant::List);
-        if (data.type() == QVariant::Url) {
+        data = retrieveTypedData(textUriListLiteral(), QMetaType::QVariantList);
+        if (data.userType() == QMetaType::QUrl) {
             data = QVariant(data.toUrl().toDisplayString());
-        } else if (data.type() == QVariant::List) {
+        } else if (data.userType() == QMetaType::QVariantList) {
             QString text;
             int numUrls = 0;
             const QList<QVariant> list = data.toList();
             for (int i = 0; i < list.size(); ++i) {
-                if (list.at(i).type() == QVariant::Url) {
+                if (list.at(i).userType() == QMetaType::QUrl) {
                     text += list.at(i).toUrl().toDisplayString() + QLatin1Char('\n');
                     ++numUrls;
                 }
@@ -135,26 +135,26 @@ QVariant QMimeDataPrivate::retrieveTypedData(const QString &format, QVariant::Ty
         }
     }
 
-    if (data.type() == type || !data.isValid())
+    if (data.userType() == type || !data.isValid())
         return data;
 
     // provide more conversion possiblities than just what QVariant provides
 
     // URLs can be lists as well...
-    if ((type == QVariant::Url && data.type() == QVariant::List)
-        || (type == QVariant::List && data.type() == QVariant::Url))
+    if ((type == QMetaType::QUrl && data.userType() == QMetaType::QVariantList)
+        || (type == QMetaType::QVariantList && data.userType() == QMetaType::QUrl))
         return data;
 
     // images and pixmaps are interchangeable
-    if ((type == QVariant::Pixmap && data.type() == QVariant::Image)
-        || (type == QVariant::Image && data.type() == QVariant::Pixmap))
+    if ((type == QMetaType::QPixmap && data.userType() == QMetaType::QImage)
+        || (type == QMetaType::QImage && data.userType() == QMetaType::QPixmap))
         return data;
 
-    if (data.type() == QVariant::ByteArray) {
+    if (data.userType() == QMetaType::QByteArray) {
         // see if we can convert to the requested type
         switch(type) {
 #if QT_CONFIG(textcodec)
-        case QVariant::String: {
+        case QMetaType::QString: {
             const QByteArray ba = data.toByteArray();
             QTextCodec *codec = QTextCodec::codecForName("utf-8");
             if (format == QLatin1String("text/html"))
@@ -162,17 +162,17 @@ QVariant QMimeDataPrivate::retrieveTypedData(const QString &format, QVariant::Ty
             return codec->toUnicode(ba);
         }
 #endif // textcodec
-        case QVariant::Color: {
+        case QMetaType::QColor: {
             QVariant newData = data;
-            newData.convert(QVariant::Color);
+            newData.convert(QMetaType::QColor);
             return newData;
         }
-        case QVariant::List: {
+        case QMetaType::QVariantList: {
             if (format != QLatin1String("text/uri-list"))
                 break;
             Q_FALLTHROUGH();
         }
-        case QVariant::Url: {
+        case QMetaType::QUrl: {
             QByteArray ba = data.toByteArray();
             // Qt 3.x will send text/uri-list with a trailing
             // null-terminator (that is *not* sent for any other
@@ -193,23 +193,23 @@ QVariant QMimeDataPrivate::retrieveTypedData(const QString &format, QVariant::Ty
             break;
         }
 
-    } else if (type == QVariant::ByteArray) {
+    } else if (type == QMetaType::QByteArray) {
 
         // try to convert to bytearray
-        switch(data.type()) {
-        case QVariant::ByteArray:
-        case QVariant::Color:
+        switch (data.userType()) {
+        case QMetaType::QByteArray:
+        case QMetaType::QColor:
             return data.toByteArray();
-        case QVariant::String:
+        case QMetaType::QString:
             return data.toString().toUtf8();
-        case QVariant::Url:
+        case QMetaType::QUrl:
             return data.toUrl().toEncoded();
-        case QVariant::List: {
+        case QMetaType::QVariantList: {
             // has to be list of URLs
             QByteArray result;
             QList<QVariant> list = data.toList();
             for (int i = 0; i < list.size(); ++i) {
-                if (list.at(i).type() == QVariant::Url) {
+                if (list.at(i).userType() == QMetaType::QUrl) {
                     result += list.at(i).toUrl().toEncoded();
                     result += "\r\n";
                 }
@@ -340,14 +340,14 @@ QMimeData::~QMimeData()
 QList<QUrl> QMimeData::urls() const
 {
     Q_D(const QMimeData);
-    QVariant data = d->retrieveTypedData(textUriListLiteral(), QVariant::List);
+    QVariant data = d->retrieveTypedData(textUriListLiteral(), QMetaType::QVariantList);
     QList<QUrl> urls;
-    if (data.type() == QVariant::Url)
+    if (data.userType() == QMetaType::QUrl)
         urls.append(data.toUrl());
-    else if (data.type() == QVariant::List) {
+    else if (data.userType() == QMetaType::QVariantList) {
         QList<QVariant> list = data.toList();
         for (int i = 0; i < list.size(); ++i) {
-            if (list.at(i).type() == QVariant::Url)
+            if (list.at(i).userType() == QMetaType::QUrl)
                 urls.append(list.at(i).toUrl());
         }
     }
@@ -400,11 +400,11 @@ bool QMimeData::hasUrls() const
 QString QMimeData::text() const
 {
     Q_D(const QMimeData);
-    QVariant utf8Text = d->retrieveTypedData(textPlainUtf8Literal(), QVariant::String);
+    QVariant utf8Text = d->retrieveTypedData(textPlainUtf8Literal(), QMetaType::QString);
     if (!utf8Text.isNull())
         return utf8Text.toString();
 
-    QVariant data = d->retrieveTypedData(textPlainLiteral(), QVariant::String);
+    QVariant data = d->retrieveTypedData(textPlainLiteral(), QMetaType::QString);
     return data.toString();
 }
 
@@ -440,7 +440,7 @@ bool QMimeData::hasText() const
 QString QMimeData::html() const
 {
     Q_D(const QMimeData);
-    QVariant data = d->retrieveTypedData(textHtmlLiteral(), QVariant::String);
+    QVariant data = d->retrieveTypedData(textHtmlLiteral(), QMetaType::QString);
     return data.toString();
 }
 
@@ -482,7 +482,7 @@ bool QMimeData::hasHtml() const
 QVariant QMimeData::imageData() const
 {
     Q_D(const QMimeData);
-    return d->retrieveTypedData(applicationXQtImageLiteral(), QVariant::Image);
+    return d->retrieveTypedData(applicationXQtImageLiteral(), QMetaType::QImage);
 }
 
 /*!
@@ -529,7 +529,7 @@ bool QMimeData::hasImage() const
 QVariant QMimeData::colorData() const
 {
     Q_D(const QMimeData);
-    return d->retrieveTypedData(applicationXColorLiteral(), QVariant::Color);
+    return d->retrieveTypedData(applicationXColorLiteral(), QMetaType::QColor);
 }
 
 /*!
@@ -564,7 +564,7 @@ bool QMimeData::hasColor() const
 QByteArray QMimeData::data(const QString &mimeType) const
 {
     Q_D(const QMimeData);
-    QVariant data = d->retrieveTypedData(mimeType, QVariant::ByteArray);
+    QVariant data = d->retrieveTypedData(mimeType, QMetaType::QByteArray);
     return data.toByteArray();
 }
 
diff --git a/src/corelib/kernel/qvariant.cpp b/src/corelib/kernel/qvariant.cpp
index f3ac3fcdbac..b417683d2a2 100644
--- a/src/corelib/kernel/qvariant.cpp
+++ b/src/corelib/kernel/qvariant.cpp
@@ -168,7 +168,7 @@ static qlonglong qMetaTypeNumber(const QVariant::Private *d)
         return qlonglong(d->data.l);
     case QMetaType::Float:
         return qRound64(d->data.f);
-    case QVariant::Double:
+    case QMetaType::Double:
         return qRound64(d->data.d);
 #ifndef QT_BOOTSTRAPPED
     case QMetaType::QJsonValue:
@@ -184,9 +184,9 @@ static qlonglong qMetaTypeNumber(const QVariant::Private *d)
 static qulonglong qMetaTypeUNumber(const QVariant::Private *d)
 {
     switch (d->type) {
-    case QVariant::UInt:
+    case QMetaType::UInt:
         return d->data.u;
-    case QVariant::ULongLong:
+    case QMetaType::ULongLong:
         return d->data.ull;
     case QMetaType::UChar:
         return d->data.uc;
@@ -204,13 +204,13 @@ static qlonglong qConvertToNumber(const QVariant::Private *d, bool *ok)
     *ok = true;
 
     switch (uint(d->type)) {
-    case QVariant::String:
+    case QMetaType::QString:
         return v_cast<QString>(d)->toLongLong(ok);
-    case QVariant::Char:
+    case QMetaType::QChar:
         return v_cast<QChar>(d)->unicode();
-    case QVariant::ByteArray:
+    case QMetaType::QByteArray:
         return v_cast<QByteArray>(d)->toLongLong(ok);
-    case QVariant::Bool:
+    case QMetaType::Bool:
         return qlonglong(d->data.b);
 #ifndef QT_BOOTSTRAPPED
     case QMetaType::QCborValue:
@@ -222,8 +222,8 @@ static qlonglong qConvertToNumber(const QVariant::Private *d, bool *ok)
             break;
         Q_FALLTHROUGH();
 #endif
-    case QVariant::Double:
-    case QVariant::Int:
+    case QMetaType::Double:
+    case QMetaType::Int:
     case QMetaType::Char:
     case QMetaType::SChar:
     case QMetaType::Short:
@@ -231,8 +231,8 @@ static qlonglong qConvertToNumber(const QVariant::Private *d, bool *ok)
     case QMetaType::Float:
     case QMetaType::LongLong:
         return qMetaTypeNumber(d);
-    case QVariant::ULongLong:
-    case QVariant::UInt:
+    case QMetaType::ULongLong:
+    case QMetaType::UInt:
     case QMetaType::UChar:
     case QMetaType::UShort:
     case QMetaType::ULong:
@@ -262,12 +262,12 @@ static qreal qConvertToRealNumber(const QVariant::Private *d, bool *ok)
 {
     *ok = true;
     switch (uint(d->type)) {
-    case QVariant::Double:
+    case QMetaType::Double:
         return qreal(d->data.d);
     case QMetaType::Float:
         return qreal(d->data.f);
-    case QVariant::ULongLong:
-    case QVariant::UInt:
+    case QMetaType::ULongLong:
+    case QMetaType::UInt:
     case QMetaType::UChar:
     case QMetaType::UShort:
     case QMetaType::ULong:
@@ -289,13 +289,13 @@ static qulonglong qConvertToUnsignedNumber(const QVariant::Private *d, bool *ok)
     *ok = true;
 
     switch (uint(d->type)) {
-    case QVariant::String:
+    case QMetaType::QString:
         return v_cast<QString>(d)->toULongLong(ok);
-    case QVariant::Char:
+    case QMetaType::QChar:
         return v_cast<QChar>(d)->unicode();
-    case QVariant::ByteArray:
+    case QMetaType::QByteArray:
         return v_cast<QByteArray>(d)->toULongLong(ok);
-    case QVariant::Bool:
+    case QMetaType::Bool:
         return qulonglong(d->data.b);
 #ifndef QT_BOOTSTRAPPED
     case QMetaType::QCborValue:
@@ -309,8 +309,8 @@ static qulonglong qConvertToUnsignedNumber(const QVariant::Private *d, bool *ok)
             break;
         Q_FALLTHROUGH();
 #endif
-    case QVariant::Double:
-    case QVariant::Int:
+    case QMetaType::Double:
+    case QMetaType::Int:
     case QMetaType::Char:
     case QMetaType::SChar:
     case QMetaType::Short:
@@ -318,8 +318,8 @@ static qulonglong qConvertToUnsignedNumber(const QVariant::Private *d, bool *ok)
     case QMetaType::Float:
     case QMetaType::LongLong:
         return qulonglong(qMetaTypeNumber(d));
-    case QVariant::ULongLong:
-    case QVariant::UInt:
+    case QMetaType::ULongLong:
+    case QMetaType::UInt:
     case QMetaType::UChar:
     case QMetaType::UShort:
     case QMetaType::ULong:
@@ -406,9 +406,9 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
 
     switch (uint(t)) {
 #ifndef QT_BOOTSTRAPPED
-    case QVariant::Url:
+    case QMetaType::QUrl:
         switch (d->type) {
-        case QVariant::String:
+        case QMetaType::QString:
             *static_cast<QUrl *>(result) = QUrl(*v_cast<QString>(d));
             break;
         case QMetaType::QCborValue:
@@ -423,18 +423,18 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         break;
 #endif // QT_BOOTSTRAPPED
 #if QT_CONFIG(itemmodel)
-    case QVariant::ModelIndex:
+    case QMetaType::QModelIndex:
         switch (d->type) {
-        case QVariant::PersistentModelIndex:
+        case QMetaType::QPersistentModelIndex:
             *static_cast<QModelIndex *>(result) = QModelIndex(*v_cast<QPersistentModelIndex>(d));
             break;
         default:
             return false;
         }
         break;
-    case QVariant::PersistentModelIndex:
+    case QMetaType::QPersistentModelIndex:
         switch (d->type) {
-        case QVariant::ModelIndex:
+        case QMetaType::QModelIndex:
             *static_cast<QPersistentModelIndex *>(result) = QPersistentModelIndex(*v_cast<QModelIndex>(d));
             break;
         default:
@@ -442,10 +442,10 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         }
         break;
 #endif // QT_CONFIG(itemmodel)
-    case QVariant::String: {
+    case QMetaType::QString: {
         QString *str = static_cast<QString *>(result);
         switch (d->type) {
-        case QVariant::Char:
+        case QMetaType::QChar:
             *str = *v_cast<QChar>(d);
             break;
         case QMetaType::Char:
@@ -455,12 +455,12 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
             break;
         case QMetaType::Short:
         case QMetaType::Long:
-        case QVariant::Int:
-        case QVariant::LongLong:
+        case QMetaType::Int:
+        case QMetaType::LongLong:
             *str = QString::number(qMetaTypeNumber(d));
             break;
-        case QVariant::UInt:
-        case QVariant::ULongLong:
+        case QMetaType::UInt:
+        case QMetaType::ULongLong:
         case QMetaType::UShort:
         case QMetaType::ULong:
             *str = QString::number(qMetaTypeUNumber(d));
@@ -468,32 +468,32 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         case QMetaType::Float:
             *str = QString::number(d->data.f, 'g', QLocale::FloatingPointShortest);
             break;
-        case QVariant::Double:
+        case QMetaType::Double:
             *str = QString::number(d->data.d, 'g', QLocale::FloatingPointShortest);
             break;
 #if QT_CONFIG(datestring)
-        case QVariant::Date:
+        case QMetaType::QDate:
             *str = v_cast<QDate>(d)->toString(Qt::ISODate);
             break;
-        case QVariant::Time:
+        case QMetaType::QTime:
             *str = v_cast<QTime>(d)->toString(Qt::ISODateWithMs);
             break;
-        case QVariant::DateTime:
+        case QMetaType::QDateTime:
             *str = v_cast<QDateTime>(d)->toString(Qt::ISODateWithMs);
             break;
 #endif
-        case QVariant::Bool:
+        case QMetaType::Bool:
             *str = d->data.b ? QStringLiteral("true") : QStringLiteral("false");
             break;
-        case QVariant::ByteArray:
+        case QMetaType::QByteArray:
             *str = QString::fromUtf8(v_cast<QByteArray>(d)->constData());
             break;
-        case QVariant::StringList:
+        case QMetaType::QStringList:
             if (v_cast<QStringList>(d)->count() == 1)
                 *str = v_cast<QStringList>(d)->at(0);
             break;
 #ifndef QT_BOOTSTRAPPED
-        case QVariant::Url:
+        case QMetaType::QUrl:
             *str = v_cast<QUrl>(d)->toString();
             break;
         case QMetaType::QJsonValue:
@@ -508,7 +508,7 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
             *str = v_cast<QCborValue>(d)->toVariant().toString();
             break;
 #endif
-        case QVariant::Uuid:
+        case QMetaType::QUuid:
             *str = v_cast<QUuid>(d)->toString();
             break;
         case QMetaType::Nullptr:
@@ -528,11 +528,11 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         }
         break;
     }
-    case QVariant::Char: {
+    case QMetaType::QChar: {
         QChar *c = static_cast<QChar *>(result);
         switch (d->type) {
-        case QVariant::Int:
-        case QVariant::LongLong:
+        case QMetaType::Int:
+        case QMetaType::LongLong:
         case QMetaType::Char:
         case QMetaType::SChar:
         case QMetaType::Short:
@@ -540,8 +540,8 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         case QMetaType::Float:
             *c = QChar(ushort(qMetaTypeNumber(d)));
             break;
-        case QVariant::UInt:
-        case QVariant::ULongLong:
+        case QMetaType::UInt:
+        case QMetaType::ULongLong:
         case QMetaType::UChar:
         case QMetaType::UShort:
         case QMetaType::ULong:
@@ -553,10 +553,10 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         break;
     }
 #ifndef QT_NO_GEOM_VARIANT
-    case QVariant::Size: {
+    case QMetaType::QSize: {
         QSize *s = static_cast<QSize *>(result);
         switch (d->type) {
-        case QVariant::SizeF:
+        case QMetaType::QSizeF:
             *s = v_cast<QSizeF>(d)->toSize();
             break;
         default:
@@ -565,10 +565,10 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         break;
     }
 
-    case QVariant::SizeF: {
+    case QMetaType::QSizeF: {
         QSizeF *s = static_cast<QSizeF *>(result);
         switch (d->type) {
-        case QVariant::Size:
+        case QMetaType::QSize:
             *s = QSizeF(*(v_cast<QSize>(d)));
             break;
         default:
@@ -577,10 +577,10 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         break;
     }
 
-    case QVariant::Line: {
+    case QMetaType::QLine: {
         QLine *s = static_cast<QLine *>(result);
         switch (d->type) {
-        case QVariant::LineF:
+        case QMetaType::QLineF:
             *s = v_cast<QLineF>(d)->toLine();
             break;
         default:
@@ -589,10 +589,10 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         break;
     }
 
-    case QVariant::LineF: {
+    case QMetaType::QLineF: {
         QLineF *s = static_cast<QLineF *>(result);
         switch (d->type) {
-        case QVariant::Line:
+        case QMetaType::QLine:
             *s = QLineF(*(v_cast<QLine>(d)));
             break;
         default:
@@ -601,27 +601,27 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         break;
     }
 #endif
-    case QVariant::StringList:
-        if (d->type == QVariant::List) {
+    case QMetaType::QStringList:
+        if (d->type == QMetaType::QVariantList) {
             QStringList *slst = static_cast<QStringList *>(result);
             const QVariantList *list = v_cast<QVariantList >(d);
             const int size = list->size();
             slst->reserve(size);
             for (int i = 0; i < size; ++i)
                 slst->append(list->at(i).toString());
-        } else if (d->type == QVariant::String) {
+        } else if (d->type == QMetaType::QString) {
             QStringList *slst = static_cast<QStringList *>(result);
             *slst = QStringList(*v_cast<QString>(d));
         } else {
             return false;
         }
         break;
-    case QVariant::Date: {
+    case QMetaType::QDate: {
         QDate *dt = static_cast<QDate *>(result);
-        if (d->type == QVariant::DateTime)
+        if (d->type == QMetaType::QDateTime)
             *dt = v_cast<QDateTime>(d)->date();
 #if QT_CONFIG(datestring)
-        else if (d->type == QVariant::String)
+        else if (d->type == QMetaType::QString)
             *dt = QDate::fromString(*v_cast<QString>(d), Qt::ISODate);
 #endif
         else
@@ -629,14 +629,14 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
 
         return dt->isValid();
     }
-    case QVariant::Time: {
+    case QMetaType::QTime: {
         QTime *t = static_cast<QTime *>(result);
         switch (d->type) {
-        case QVariant::DateTime:
+        case QMetaType::QDateTime:
             *t = v_cast<QDateTime>(d)->time();
             break;
 #if QT_CONFIG(datestring)
-        case QVariant::String:
+        case QMetaType::QString:
             *t = QTime::fromString(*v_cast<QString>(d), Qt::ISODate);
             break;
 #endif
@@ -645,11 +645,11 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         }
         return t->isValid();
     }
-    case QVariant::DateTime: {
+    case QMetaType::QDateTime: {
         QDateTime *dt = static_cast<QDateTime *>(result);
         switch (d->type) {
 #if QT_CONFIG(datestring)
-        case QVariant::String:
+        case QMetaType::QString:
             *dt = QDateTime::fromString(*v_cast<QString>(d), Qt::ISODate);
             break;
 #  ifndef QT_BOOTSTRAPPED
@@ -661,7 +661,7 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
             break;
 #  endif
 #endif
-        case QVariant::Date:
+        case QMetaType::QDate:
             *dt = QDateTime(*v_cast<QDate>(d));
             break;
         default:
@@ -669,13 +669,13 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         }
         return dt->isValid();
     }
-    case QVariant::ByteArray: {
+    case QMetaType::QByteArray: {
         QByteArray *ba = static_cast<QByteArray *>(result);
         switch (d->type) {
-        case QVariant::String:
+        case QMetaType::QString:
             *ba = v_cast<QString>(d)->toUtf8();
             break;
-        case QVariant::Double:
+        case QMetaType::Double:
             *ba = QByteArray::number(d->data.d, 'g', QLocale::FloatingPointShortest);
             break;
         case QMetaType::Float:
@@ -686,22 +686,22 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         case QMetaType::UChar:
             *ba = QByteArray(1, d->data.c);
             break;
-        case QVariant::Int:
-        case QVariant::LongLong:
+        case QMetaType::Int:
+        case QMetaType::LongLong:
         case QMetaType::Short:
         case QMetaType::Long:
             *ba = QByteArray::number(qMetaTypeNumber(d));
             break;
-        case QVariant::UInt:
-        case QVariant::ULongLong:
+        case QMetaType::UInt:
+        case QMetaType::ULongLong:
         case QMetaType::UShort:
         case QMetaType::ULong:
             *ba = QByteArray::number(qMetaTypeUNumber(d));
             break;
-        case QVariant::Bool:
+        case QMetaType::Bool:
             *ba = QByteArray(d->data.b ? "true" : "false");
             break;
-        case QVariant::Uuid:
+        case QMetaType::QUuid:
             *ba = v_cast<QUuid>(d)->toByteArray();
             break;
         case QMetaType::Nullptr:
@@ -741,16 +741,16 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
     case QMetaType::ULong:
         *static_cast<ulong *>(result) = ulong(qConvertToUnsignedNumber(d, ok));
         return *ok;
-    case QVariant::Int:
+    case QMetaType::Int:
         *static_cast<int *>(result) = int(qConvertToNumber(d, ok));
         return *ok;
-    case QVariant::UInt:
+    case QMetaType::UInt:
         *static_cast<uint *>(result) = uint(qConvertToUnsignedNumber(d, ok));
         return *ok;
-    case QVariant::LongLong:
+    case QMetaType::LongLong:
         *static_cast<qlonglong *>(result) = qConvertToNumber(d, ok);
         return *ok;
-    case QVariant::ULongLong: {
+    case QMetaType::ULongLong: {
         *static_cast<qulonglong *>(result) = qConvertToUnsignedNumber(d, ok);
         return *ok;
     }
@@ -763,21 +763,21 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         *static_cast<uchar *>(result) = qConvertToUnsignedNumber(d, ok);
         return *ok;
     }
-    case QVariant::Bool: {
+    case QMetaType::Bool: {
         bool *b = static_cast<bool *>(result);
         switch(d->type) {
-        case QVariant::ByteArray:
+        case QMetaType::QByteArray:
             *b = qt_convertToBool<QByteArray, const char*>(d);
             break;
-        case QVariant::String:
+        case QMetaType::QString:
             *b = qt_convertToBool<QString, QLatin1String>(d);
             break;
-        case QVariant::Char:
+        case QMetaType::QChar:
             *b = !v_cast<QChar>(d)->isNull();
             break;
-        case QVariant::Double:
-        case QVariant::Int:
-        case QVariant::LongLong:
+        case QMetaType::Double:
+        case QMetaType::Int:
+        case QMetaType::LongLong:
         case QMetaType::Char:
         case QMetaType::SChar:
         case QMetaType::Short:
@@ -785,8 +785,8 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         case QMetaType::Float:
             *b = qMetaTypeNumber(d) != Q_INT64_C(0);
             break;
-        case QVariant::UInt:
-        case QVariant::ULongLong:
+        case QMetaType::UInt:
+        case QMetaType::ULongLong:
         case QMetaType::UChar:
         case QMetaType::UShort:
         case QMetaType::ULong:
@@ -810,31 +810,31 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         }
         break;
     }
-    case QVariant::Double: {
+    case QMetaType::Double: {
         double *f = static_cast<double *>(result);
         switch (d->type) {
-        case QVariant::String:
+        case QMetaType::QString:
             *f = v_cast<QString>(d)->toDouble(ok);
             break;
-        case QVariant::ByteArray:
+        case QMetaType::QByteArray:
             *f = v_cast<QByteArray>(d)->toDouble(ok);
             break;
-        case QVariant::Bool:
+        case QMetaType::Bool:
             *f = double(d->data.b);
             break;
         case QMetaType::Float:
             *f = double(d->data.f);
             break;
-        case QVariant::LongLong:
-        case QVariant::Int:
+        case QMetaType::LongLong:
+        case QMetaType::Int:
         case QMetaType::Char:
         case QMetaType::SChar:
         case QMetaType::Short:
         case QMetaType::Long:
             *f = double(qMetaTypeNumber(d));
             break;
-        case QVariant::UInt:
-        case QVariant::ULongLong:
+        case QMetaType::UInt:
+        case QMetaType::ULongLong:
         case QMetaType::UChar:
         case QMetaType::UShort:
         case QMetaType::ULong:
@@ -861,28 +861,28 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
     case QMetaType::Float: {
         float *f = static_cast<float *>(result);
         switch (d->type) {
-        case QVariant::String:
+        case QMetaType::QString:
             *f = v_cast<QString>(d)->toFloat(ok);
             break;
-        case QVariant::ByteArray:
+        case QMetaType::QByteArray:
             *f = v_cast<QByteArray>(d)->toFloat(ok);
             break;
-        case QVariant::Bool:
+        case QMetaType::Bool:
             *f = float(d->data.b);
             break;
-        case QVariant::Double:
+        case QMetaType::Double:
             *f = float(d->data.d);
             break;
-        case QVariant::LongLong:
-        case QVariant::Int:
+        case QMetaType::LongLong:
+        case QMetaType::Int:
         case QMetaType::Char:
         case QMetaType::SChar:
         case QMetaType::Short:
         case QMetaType::Long:
             *f = float(qMetaTypeNumber(d));
             break;
-        case QVariant::UInt:
-        case QVariant::ULongLong:
+        case QMetaType::UInt:
+        case QMetaType::ULongLong:
         case QMetaType::UChar:
         case QMetaType::UShort:
         case QMetaType::ULong:
@@ -906,8 +906,8 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         }
         break;
     }
-    case QVariant::List:
-        if (d->type == QVariant::StringList) {
+    case QMetaType::QVariantList:
+        if (d->type == QMetaType::QStringList) {
             QVariantList *lst = static_cast<QVariantList *>(result);
             const QStringList *slist = v_cast<QStringList>(d);
             const int size = slist->size();
@@ -935,11 +935,11 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
             return false;
         }
         break;
-    case QVariant::Map:
+    case QMetaType::QVariantMap:
         if (qstrcmp(QMetaType::typeName(d->type), "QMap<QString, QVariant>") == 0) {
             *static_cast<QVariantMap *>(result) =
                 *static_cast<QMap<QString, QVariant> *>(d->data.shared->ptr);
-        } else if (d->type == QVariant::Hash) {
+        } else if (d->type == QMetaType::QVariantHash) {
             QVariantMap *map = static_cast<QVariantMap *>(result);
             const QVariantHash *hash = v_cast<QVariantHash>(d);
             const auto end = hash->end();
@@ -963,11 +963,11 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
             return false;
         }
         break;
-    case QVariant::Hash:
+    case QMetaType::QVariantHash:
         if (qstrcmp(QMetaType::typeName(d->type), "QHash<QString, QVariant>") == 0) {
             *static_cast<QVariantHash *>(result) =
                 *static_cast<QHash<QString, QVariant> *>(d->data.shared->ptr);
-        } else if (d->type == QVariant::Map) {
+        } else if (d->type == QMetaType::QVariantMap) {
             QVariantHash *hash = static_cast<QVariantHash *>(result);
             const QVariantMap *map = v_cast<QVariantMap>(d);
             const auto end = map->end();
@@ -992,26 +992,26 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         }
         break;
 #ifndef QT_NO_GEOM_VARIANT
-    case QVariant::Rect:
-        if (d->type == QVariant::RectF)
+    case QMetaType::QRect:
+        if (d->type == QMetaType::QRectF)
             *static_cast<QRect *>(result) = (v_cast<QRectF>(d))->toRect();
         else
             return false;
         break;
-    case QVariant::RectF:
-        if (d->type == QVariant::Rect)
+    case QMetaType::QRectF:
+        if (d->type == QMetaType::QRect)
             *static_cast<QRectF *>(result) = *v_cast<QRect>(d);
         else
             return false;
         break;
-    case QVariant::PointF:
-        if (d->type == QVariant::Point)
+    case QMetaType::QPointF:
+        if (d->type == QMetaType::QPoint)
             *static_cast<QPointF *>(result) = *v_cast<QPoint>(d);
         else
             return false;
         break;
-    case QVariant::Point:
-        if (d->type == QVariant::PointF)
+    case QMetaType::QPoint:
+        if (d->type == QMetaType::QPointF)
             *static_cast<QPoint *>(result) = (v_cast<QPointF>(d))->toPoint();
         else
             return false;
@@ -1022,12 +1022,12 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         return *ok;
     }
 #endif
-    case QVariant::Uuid:
+    case QMetaType::QUuid:
         switch (d->type) {
-        case QVariant::String:
+        case QMetaType::QString:
             *static_cast<QUuid *>(result) = QUuid(*v_cast<QString>(d));
             break;
-        case QVariant::ByteArray:
+        case QMetaType::QByteArray:
             *static_cast<QUuid *>(result) = QUuid(*v_cast<QByteArray>(d));
             break;
 #ifndef QT_BOOTSTRAPPED
@@ -1067,7 +1067,7 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         case QMetaType::Nullptr:
             *static_cast<QJsonValue *>(result) = QJsonValue(QJsonValue::Null);
             break;
-        case QVariant::Bool:
+        case QMetaType::Bool:
             *static_cast<QJsonValue *>(result) = QJsonValue(d->data.b);
             break;
         case QMetaType::Int:
@@ -1086,19 +1086,19 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
             *static_cast<QJsonValue *>(result) = QJsonValue(qConvertToRealNumber(d, ok));
             Q_ASSERT(ok);
             break;
-        case QVariant::String:
+        case QMetaType::QString:
             *static_cast<QJsonValue *>(result) = QJsonValue(*v_cast<QString>(d));
             break;
-        case QVariant::StringList:
+        case QMetaType::QStringList:
             *static_cast<QJsonValue *>(result) = QJsonValue(QJsonArray::fromStringList(*v_cast<QStringList>(d)));
             break;
-        case QVariant::List:
+        case QMetaType::QVariantList:
             *static_cast<QJsonValue *>(result) = QJsonValue(QJsonArray::fromVariantList(*v_cast<QVariantList>(d)));
             break;
-        case QVariant::Map:
+        case QMetaType::QVariantMap:
             *static_cast<QJsonValue *>(result) = QJsonValue(QJsonObject::fromVariantMap(*v_cast<QVariantMap>(d)));
             break;
-        case QVariant::Hash:
+        case QMetaType::QVariantHash:
             *static_cast<QJsonValue *>(result) = QJsonValue(QJsonObject::fromVariantHash(*v_cast<QVariantHash>(d)));
             break;
         case QMetaType::QJsonObject:
@@ -1128,10 +1128,10 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         break;
     case QMetaType::QJsonArray:
         switch (d->type) {
-        case QVariant::StringList:
+        case QMetaType::QStringList:
             *static_cast<QJsonArray *>(result) = QJsonArray::fromStringList(*v_cast<QStringList>(d));
             break;
-        case QVariant::List:
+        case QMetaType::QVariantList:
             *static_cast<QJsonArray *>(result) = QJsonArray::fromVariantList(*v_cast<QVariantList>(d));
             break;
         case QMetaType::QJsonValue:
@@ -1158,10 +1158,10 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         break;
     case QMetaType::QJsonObject:
         switch (d->type) {
-        case QVariant::Map:
+        case QMetaType::QVariantMap:
             *static_cast<QJsonObject *>(result) = QJsonObject::fromVariantMap(*v_cast<QVariantMap>(d));
             break;
-        case QVariant::Hash:
+        case QMetaType::QVariantHash:
             *static_cast<QJsonObject *>(result) = QJsonObject::fromVariantHash(*v_cast<QVariantHash>(d));
             break;
         case QMetaType::QJsonValue:
@@ -1197,7 +1197,7 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         case QMetaType::Nullptr:
             *static_cast<QCborValue *>(result) = QCborValue(QCborValue::Null);
             break;
-        case QVariant::Bool:
+        case QMetaType::Bool:
             *static_cast<QCborValue *>(result) = QCborValue(d->data.b);
             break;
         case QMetaType::Int:
@@ -1219,39 +1219,39 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
             *static_cast<QCborValue *>(result) = QCborValue(qConvertToRealNumber(d, ok));
             Q_ASSERT(ok);
             break;
-        case QVariant::String:
+        case QMetaType::QString:
             *static_cast<QCborValue *>(result) = *v_cast<QString>(d);
             break;
-        case QVariant::StringList:
+        case QMetaType::QStringList:
             *static_cast<QCborValue *>(result) = QCborArray::fromStringList(*v_cast<QStringList>(d));
             break;
-        case QVariant::ByteArray:
+        case QMetaType::QByteArray:
             *static_cast<QCborValue *>(result) = *v_cast<QByteArray>(d);
             break;
-        case QVariant::Date:
+        case QMetaType::QDate:
             *static_cast<QCborValue *>(result) = QCborValue(QDateTime(*v_cast<QDate>(d)));
             break;
-        case QVariant::DateTime:
+        case QMetaType::QDateTime:
             *static_cast<QCborValue *>(result) = QCborValue(*v_cast<QDateTime>(d));
             break;
-        case QVariant::Url:
+        case QMetaType::QUrl:
             *static_cast<QCborValue *>(result) = QCborValue(*v_cast<QUrl>(d));
             break;
 #if QT_CONFIG(regularexpression)
-        case QVariant::RegularExpression:
+        case QMetaType::QRegularExpression:
             *static_cast<QCborValue *>(result) = QCborValue(*v_cast<QRegularExpression>(d));
             break;
 #endif
-        case QVariant::Uuid:
+        case QMetaType::QUuid:
             *static_cast<QCborValue *>(result) = QCborValue(*v_cast<QUuid>(d));
             break;
-        case QVariant::List:
+        case QMetaType::QVariantList:
             *static_cast<QCborValue *>(result) = QCborArray::fromVariantList(*v_cast<QVariantList>(d));
             break;
-        case QVariant::Map:
+        case QMetaType::QVariantMap:
             *static_cast<QCborValue *>(result) = QCborMap::fromVariantMap(*v_cast<QVariantMap>(d));
             break;
-        case QVariant::Hash:
+        case QMetaType::QVariantHash:
             *static_cast<QCborValue *>(result) = QCborMap::fromVariantHash(*v_cast<QVariantHash>(d));
             break;
         case QMetaType::QJsonValue:
@@ -1287,10 +1287,10 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         break;
     case QMetaType::QCborArray:
         switch (d->type) {
-        case QVariant::StringList:
+        case QMetaType::QStringList:
             *static_cast<QCborArray *>(result) = QCborArray::fromStringList(*v_cast<QStringList>(d));
             break;
-        case QVariant::List:
+        case QMetaType::QVariantList:
             *static_cast<QCborArray *>(result) = QCborArray::fromVariantList(*v_cast<QVariantList>(d));
             break;
         case QMetaType::QCborValue:
@@ -1317,10 +1317,10 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
         break;
     case QMetaType::QCborMap:
         switch (d->type) {
-        case QVariant::Map:
+        case QMetaType::QVariantMap:
             *static_cast<QCborMap *>(result) = QCborMap::fromVariantMap(*v_cast<QVariantMap>(d));
             break;
-        case QVariant::Hash:
+        case QMetaType::QVariantHash:
             *static_cast<QCborMap *>(result) = QCborMap::fromVariantHash(*v_cast<QVariantHash>(d));
             break;
         case QMetaType::QCborValue:
@@ -1349,10 +1349,10 @@ static bool convert(const QVariant::Private *d, int t, void *result, bool *ok)
 
     default:
 #ifndef QT_NO_QOBJECT
-        if (d->type == QVariant::String || d->type == QVariant::ByteArray) {
+        if (d->type == QMetaType::QString || d->type == QMetaType::QByteArray) {
             QMetaEnum en = metaEnumFromType(t);
             if (en.isValid()) {
-                QByteArray keys = (d->type == QVariant::String) ? v_cast<QString>(d)->toUtf8() : *v_cast<QByteArray>(d);
+                QByteArray keys = (d->type == QMetaType::QString) ? v_cast<QString>(d)->toUtf8() : *v_cast<QByteArray>(d);
                 int value = en.keysToValue(keys.constData(), ok);
                 if (*ok) {
                     switch (QMetaType::sizeOf(t)) {
@@ -1457,7 +1457,7 @@ static void customConstruct(QVariant::Private *d, const void *copy)
     const uint size = type.sizeOf();
     if (!size) {
         qWarning("Trying to construct an instance of an invalid type, type id: %i", d->type);
-        d->type = QVariant::Invalid;
+        d->type = QMetaType::UnknownType;
         return;
     }
 
@@ -2438,43 +2438,43 @@ QVariant::Type QVariant::nameToType(const char *name)
 enum { MapFromThreeCount = 36 };
 static const ushort mapIdFromQt3ToCurrent[MapFromThreeCount] =
 {
-    QVariant::Invalid,
-    QVariant::Map,
-    QVariant::List,
-    QVariant::String,
-    QVariant::StringList,
-    QVariant::Font,
-    QVariant::Pixmap,
-    QVariant::Brush,
-    QVariant::Rect,
-    QVariant::Size,
-    QVariant::Color,
-    QVariant::Palette,
+    QMetaType::UnknownType,
+    QMetaType::QVariantMap,
+    QMetaType::QVariantList,
+    QMetaType::QString,
+    QMetaType::QStringList,
+    QMetaType::QFont,
+    QMetaType::QPixmap,
+    QMetaType::QBrush,
+    QMetaType::QRect,
+    QMetaType::QSize,
+    QMetaType::QColor,
+    QMetaType::QPalette,
     0, // ColorGroup
-    QVariant::Icon,
-    QVariant::Point,
-    QVariant::Image,
-    QVariant::Int,
-    QVariant::UInt,
-    QVariant::Bool,
-    QVariant::Double,
+    QMetaType::QIcon,
+    QMetaType::QPoint,
+    QMetaType::QImage,
+    QMetaType::Int,
+    QMetaType::UInt,
+    QMetaType::Bool,
+    QMetaType::Double,
     0, // Buggy ByteArray, QByteArray never had id == 20
-    QVariant::Polygon,
-    QVariant::Region,
-    QVariant::Bitmap,
-    QVariant::Cursor,
-    QVariant::SizePolicy,
-    QVariant::Date,
-    QVariant::Time,
-    QVariant::DateTime,
-    QVariant::ByteArray,
-    QVariant::BitArray,
-    QVariant::KeySequence,
-    QVariant::Pen,
-    QVariant::LongLong,
-    QVariant::ULongLong,
+    QMetaType::QPolygon,
+    QMetaType::QRegion,
+    QMetaType::QBitmap,
+    QMetaType::QCursor,
+    QMetaType::QSizePolicy,
+    QMetaType::QDate,
+    QMetaType::QTime,
+    QMetaType::QDateTime,
+    QMetaType::QByteArray,
+    QMetaType::QBitArray,
+    QMetaType::QKeySequence,
+    QMetaType::QPen,
+    QMetaType::LongLong,
+    QMetaType::ULongLong,
 #if QT_CONFIG(easingcurve)
-    QVariant::EasingCurve
+    QMetaType::QEasingCurve
 #endif
 };
 
@@ -2551,7 +2551,7 @@ void QVariant::load(QDataStream &s)
 */
 void QVariant::save(QDataStream &s) const
 {
-    quint32 typeId = type();
+    quint32 typeId = d.type >= QMetaType::User ? QMetaType::User : userType();
     bool fakeUserType = false;
     if (s.version() < QDataStream::Qt_4_0) {
         int i;
@@ -3294,80 +3294,80 @@ QVariantList QVariant::toList() const
 }
 
 
-static const quint32 qCanConvertMatrix[QVariant::LastCoreType + 1] =
+static const quint32 qCanConvertMatrix[QMetaType::LastCoreType + 1] =
 {
 /*Invalid*/     0,
 
-/*Bool*/          1 << QVariant::Double     | 1 << QVariant::Int        | 1 << QVariant::UInt
-                | 1 << QVariant::LongLong   | 1 << QVariant::ULongLong  | 1 << QVariant::ByteArray
-                | 1 << QVariant::String     | 1 << QVariant::Char,
+/*Bool*/          1 << QMetaType::Double     | 1 << QMetaType::Int        | 1 << QMetaType::UInt
+                | 1 << QMetaType::LongLong   | 1 << QMetaType::ULongLong  | 1 << QMetaType::QByteArray
+                | 1 << QMetaType::QString     | 1 << QMetaType::QChar,
 
-/*Int*/           1 << QVariant::UInt       | 1 << QVariant::String     | 1 << QVariant::Double
-                | 1 << QVariant::Bool       | 1 << QVariant::LongLong   | 1 << QVariant::ULongLong
-                | 1 << QVariant::Char       | 1 << QVariant::ByteArray  | 1 << QVariant::Int,
+/*Int*/           1 << QMetaType::UInt       | 1 << QMetaType::QString     | 1 << QMetaType::Double
+                | 1 << QMetaType::Bool       | 1 << QMetaType::LongLong   | 1 << QMetaType::ULongLong
+                | 1 << QMetaType::QChar       | 1 << QMetaType::QByteArray  | 1 << QMetaType::Int,
 
-/*UInt*/          1 << QVariant::Int        | 1 << QVariant::String     | 1 << QVariant::Double
-                | 1 << QVariant::Bool       | 1 << QVariant::LongLong   | 1 << QVariant::ULongLong
-                | 1 << QVariant::Char       | 1 << QVariant::ByteArray,
+/*UInt*/          1 << QMetaType::Int        | 1 << QMetaType::QString     | 1 << QMetaType::Double
+                | 1 << QMetaType::Bool       | 1 << QMetaType::LongLong   | 1 << QMetaType::ULongLong
+                | 1 << QMetaType::QChar       | 1 << QMetaType::QByteArray,
 
-/*LLong*/         1 << QVariant::Int        | 1 << QVariant::String     | 1 << QVariant::Double
-                | 1 << QVariant::Bool       | 1 << QVariant::UInt       | 1 << QVariant::ULongLong
-                | 1 << QVariant::Char       | 1 << QVariant::ByteArray,
+/*LLong*/         1 << QMetaType::Int        | 1 << QMetaType::QString     | 1 << QMetaType::Double
+                | 1 << QMetaType::Bool       | 1 << QMetaType::UInt       | 1 << QMetaType::ULongLong
+                | 1 << QMetaType::QChar       | 1 << QMetaType::QByteArray,
 
-/*ULlong*/        1 << QVariant::Int        | 1 << QVariant::String     | 1 << QVariant::Double
-                | 1 << QVariant::Bool       | 1 << QVariant::UInt       | 1 << QVariant::LongLong
-                | 1 << QVariant::Char       | 1 << QVariant::ByteArray,
+/*ULlong*/        1 << QMetaType::Int        | 1 << QMetaType::QString     | 1 << QMetaType::Double
+                | 1 << QMetaType::Bool       | 1 << QMetaType::UInt       | 1 << QMetaType::LongLong
+                | 1 << QMetaType::QChar       | 1 << QMetaType::QByteArray,
 
-/*double*/        1 << QVariant::Int        | 1 << QVariant::String     | 1 << QVariant::ULongLong
-                | 1 << QVariant::Bool       | 1 << QVariant::UInt       | 1 << QVariant::LongLong
-                | 1 << QVariant::ByteArray,
+/*double*/        1 << QMetaType::Int        | 1 << QMetaType::QString     | 1 << QMetaType::ULongLong
+                | 1 << QMetaType::Bool       | 1 << QMetaType::UInt       | 1 << QMetaType::LongLong
+                | 1 << QMetaType::QByteArray,
 
-/*QChar*/         1 << QVariant::Int        | 1 << QVariant::UInt       | 1 << QVariant::LongLong
-                | 1 << QVariant::ULongLong,
+/*QChar*/         1 << QMetaType::Int        | 1 << QMetaType::UInt       | 1 << QMetaType::LongLong
+                | 1 << QMetaType::ULongLong,
 
 /*QMap*/          0,
 
-/*QList*/         1 << QVariant::StringList,
+/*QList*/         1 << QMetaType::QStringList,
 
-/*QString*/       1 << QVariant::StringList | 1 << QVariant::ByteArray  | 1 << QVariant::Int
-                | 1 << QVariant::UInt       | 1 << QVariant::Bool       | 1 << QVariant::Double
-                | 1 << QVariant::Date       | 1 << QVariant::Time       | 1 << QVariant::DateTime
-                | 1 << QVariant::LongLong   | 1 << QVariant::ULongLong  | 1 << QVariant::Char
-                | 1 << QVariant::Url        | 1 << QVariant::Uuid,
+/*QString*/       1 << QMetaType::QStringList | 1 << QMetaType::QByteArray  | 1 << QMetaType::Int
+                | 1 << QMetaType::UInt       | 1 << QMetaType::Bool       | 1 << QMetaType::Double
+                | 1 << QMetaType::QDate       | 1 << QMetaType::QTime       | 1 << QMetaType::QDateTime
+                | 1 << QMetaType::LongLong   | 1 << QMetaType::ULongLong  | 1 << QMetaType::QChar
+                | 1 << QMetaType::QUrl        | 1 << QMetaType::QUuid,
 
-/*QStringList*/   1 << QVariant::List       | 1 << QVariant::String,
+/*QStringList*/   1 << QMetaType::QVariantList       | 1 << QMetaType::QString,
 
-/*QByteArray*/    1 << QVariant::String     | 1 << QVariant::Int        | 1 << QVariant::UInt | 1 << QVariant::Bool
-                | 1 << QVariant::Double     | 1 << QVariant::LongLong   | 1 << QVariant::ULongLong
-                | 1 << QVariant::Uuid,
+/*QByteArray*/    1 << QMetaType::QString     | 1 << QMetaType::Int        | 1 << QMetaType::UInt | 1 << QMetaType::Bool
+                | 1 << QMetaType::Double     | 1 << QMetaType::LongLong   | 1 << QMetaType::ULongLong
+                | 1 << QMetaType::QUuid,
 
 /*QBitArray*/     0,
 
-/*QDate*/         1 << QVariant::String     | 1 << QVariant::DateTime,
+/*QDate*/         1 << QMetaType::QString     | 1 << QMetaType::QDateTime,
 
-/*QTime*/         1 << QVariant::String     | 1 << QVariant::DateTime,
+/*QTime*/         1 << QMetaType::QString     | 1 << QMetaType::QDateTime,
 
-/*QDateTime*/     1 << QVariant::String     | 1 << QVariant::Date,
+/*QDateTime*/     1 << QMetaType::QString     | 1 << QMetaType::QDate,
 
-/*QUrl*/          1 << QVariant::String,
+/*QUrl*/          1 << QMetaType::QString,
 
 /*QLocale*/       0,
 
-/*QRect*/         1 << QVariant::RectF,
+/*QRect*/         1 << QMetaType::QRectF,
 
-/*QRectF*/        1 << QVariant::Rect,
+/*QRectF*/        1 << QMetaType::QRect,
 
-/*QSize*/         1 << QVariant::SizeF,
+/*QSize*/         1 << QMetaType::QSizeF,
 
-/*QSizeF*/        1 << QVariant::Size,
+/*QSizeF*/        1 << QMetaType::QSize,
 
-/*QLine*/         1 << QVariant::LineF,
+/*QLine*/         1 << QMetaType::QLineF,
 
-/*QLineF*/        1 << QVariant::Line,
+/*QLineF*/        1 << QMetaType::QLine,
 
-/*QPoint*/        1 << QVariant::PointF,
+/*QPoint*/        1 << QMetaType::QPointF,
 
-/*QPointF*/       1 << QVariant::Point,
+/*QPointF*/       1 << QMetaType::QPoint,
 
 /*QRegExp*/       0,
 
@@ -3375,7 +3375,7 @@ static const quint32 qCanConvertMatrix[QVariant::LastCoreType + 1] =
 
 /*QEasingCurve*/  0,
 
-/*QUuid*/         1 << QVariant::String     | 1 << QVariant::ByteArray,
+/*QUuid*/         1 << QMetaType::QString     | 1 << QMetaType::QByteArray,
 };
 static const size_t qCanConvertMatrixMaximumTargetType = 8 * sizeof(*qCanConvertMatrix);
 
@@ -3915,7 +3915,7 @@ static bool qIsNumericType(uint tp)
 
 static bool qIsFloatingPoint(uint tp)
 {
-    return tp == QVariant::Double || tp == QMetaType::Float;
+    return tp == QMetaType::Double || tp == QMetaType::Float;
 }
 
 static int normalizeLowerRanks(uint tp)
@@ -3927,13 +3927,13 @@ static int normalizeLowerRanks(uint tp)
             Q_UINT64_C(1) << QMetaType::UChar |
             Q_UINT64_C(1) << QMetaType::Short |
             Q_UINT64_C(1) << QMetaType::UShort;
-    return numericTypeBits & (Q_UINT64_C(1) << tp) ? QVariant::Int : tp;
+    return numericTypeBits & (Q_UINT64_C(1) << tp) ? uint(QMetaType::Int) : tp;
 }
 
 static int normalizeLong(uint tp)
 {
-    const uint IntType = sizeof(long) == sizeof(int) ? QVariant::Int : QVariant::LongLong;
-    const uint UIntType = sizeof(ulong) == sizeof(uint) ? QVariant::UInt : QVariant::ULongLong;
+    const uint IntType = sizeof(long) == sizeof(int) ? QMetaType::Int : QMetaType::LongLong;
+    const uint UIntType = sizeof(ulong) == sizeof(uint) ? QMetaType::UInt : QMetaType::ULongLong;
     return tp == QMetaType::Long ? IntType :
            tp == QMetaType::ULong ? UIntType : tp;
 }
@@ -3975,13 +3975,13 @@ static int numericTypePromotion(uint t1, uint t2)
     // if any of the two is ULongLong, then it wins (highest rank, unsigned)
     // otherwise, if one of the two is LongLong, then the other is either LongLong too or lower-ranked
     // otherwise, if one of the two is UInt, then the other is either UInt too or Int
-    if (t1 == QVariant::ULongLong || t2 == QVariant::ULongLong)
-        return QVariant::ULongLong;
-    if (t1 == QVariant::LongLong || t2 == QVariant::LongLong)
-        return QVariant::LongLong;
-    if (t1 == QVariant::UInt || t2 == QVariant::UInt)
-        return QVariant::UInt;
-    return QVariant::Int;
+    if (t1 == QMetaType::ULongLong || t2 == QMetaType::ULongLong)
+        return QMetaType::ULongLong;
+    if (t1 == QMetaType::LongLong || t2 == QMetaType::LongLong)
+        return QMetaType::LongLong;
+    if (t1 == QMetaType::UInt || t2 == QMetaType::UInt)
+        return QMetaType::UInt;
+    return QMetaType::Int;
 }
 
 static int integralCompare(uint promotedType, const QVariant::Private *d1, const QVariant::Private *d2)
@@ -3994,13 +3994,13 @@ static int integralCompare(uint promotedType, const QVariant::Private *d1, const
     qlonglong l2 = qConvertToNumber(d2, &ok);
     Q_ASSERT(ok);
 
-    if (promotedType == QVariant::Int)
+    if (promotedType == QMetaType::Int)
         return int(l1) < int(l2) ? -1 : int(l1) == int(l2) ? 0 : 1;
-    if (promotedType == QVariant::UInt)
+    if (promotedType == QMetaType::UInt)
         return uint(l1) < uint(l2) ? -1 : uint(l1) == uint(l2) ? 0 : 1;
-    if (promotedType == QVariant::LongLong)
+    if (promotedType == QMetaType::LongLong)
         return l1 < l2 ? -1 : l1 == l2 ? 0 : 1;
-    if (promotedType == QVariant::ULongLong)
+    if (promotedType == QMetaType::ULongLong)
         return qulonglong(l1) < qulonglong(l2) ? -1 : qulonglong(l1) == qulonglong(l2) ? 0 : 1;
 
     Q_UNREACHABLE();
diff --git a/src/corelib/kernel/qvariant_p.h b/src/corelib/kernel/qvariant_p.h
index b8b63b5e6fd..94781a9957e 100644
--- a/src/corelib/kernel/qvariant_p.h
+++ b/src/corelib/kernel/qvariant_p.h
@@ -362,7 +362,7 @@ class QVariantConstructor
         FilteredConstructor(const QVariantConstructor &tc)
         {
             // ignore types that lives outside of the current library
-            tc.m_x->type = QVariant::Invalid;
+            tc.m_x->type = QMetaType::UnknownType;
         }
     };
 public:
@@ -430,7 +430,7 @@ public:
     {}
     ~QVariantDestructor()
     {
-        m_d->type = QVariant::Invalid;
+        m_d->type = QMetaType::UnknownType;
         m_d->is_null = true;
         m_d->is_shared = false;
     }
diff --git a/src/corelib/serialization/qjsoncbor.cpp b/src/corelib/serialization/qjsoncbor.cpp
index 5097f4eb81d..ee4dd904166 100644
--- a/src/corelib/serialization/qjsoncbor.cpp
+++ b/src/corelib/serialization/qjsoncbor.cpp
@@ -640,9 +640,9 @@ static void appendVariant(QCborContainerPrivate *d, const QVariant &variant)
     // Handle strings and byte arrays directly, to avoid creating a temporary
     // dummy container to hold their data.
     int type = variant.userType();
-    if (type == QVariant::String) {
+    if (type == QMetaType::QString) {
         d->append(variant.toString());
-    } else if (type == QVariant::ByteArray) {
+    } else if (type == QMetaType::QByteArray) {
         QByteArray ba = variant.toByteArray();
         d->appendByteData(ba.constData(), ba.size(), QCborValue::ByteArray);
     } else {
@@ -703,45 +703,45 @@ static void appendVariant(QCborContainerPrivate *d, const QVariant &variant)
 QCborValue QCborValue::fromVariant(const QVariant &variant)
 {
     switch (variant.userType()) {
-    case QVariant::Invalid:
+    case QMetaType::UnknownType:
         return {};
     case QMetaType::Nullptr:
         return nullptr;
-    case QVariant::Bool:
+    case QMetaType::Bool:
         return variant.toBool();
     case QMetaType::Short:
     case QMetaType::UShort:
-    case QVariant::Int:
-    case QVariant::LongLong:
-    case QVariant::ULongLong:
-    case QVariant::UInt:
+    case QMetaType::Int:
+    case QMetaType::LongLong:
+    case QMetaType::ULongLong:
+    case QMetaType::UInt:
         return variant.toLongLong();
     case QMetaType::Float:
-    case QVariant::Double:
+    case QMetaType::Double:
         return variant.toDouble();
-    case QVariant::String:
+    case QMetaType::QString:
         return variant.toString();
-    case QVariant::StringList:
+    case QMetaType::QStringList:
         return QCborArray::fromStringList(variant.toStringList());
-    case QVariant::ByteArray:
+    case QMetaType::QByteArray:
         return variant.toByteArray();
-    case QVariant::DateTime:
+    case QMetaType::QDateTime:
         return QCborValue(variant.toDateTime());
 #ifndef QT_BOOTSTRAPPED
-    case QVariant::Url:
+    case QMetaType::QUrl:
         return QCborValue(variant.toUrl());
 #endif
-    case QVariant::Uuid:
+    case QMetaType::QUuid:
         return QCborValue(variant.toUuid());
-    case QVariant::List:
+    case QMetaType::QVariantList:
         return QCborArray::fromVariantList(variant.toList());
-    case QVariant::Map:
+    case QMetaType::QVariantMap:
         return QCborMap::fromVariantMap(variant.toMap());
-    case QVariant::Hash:
+    case QMetaType::QVariantHash:
         return QCborMap::fromVariantHash(variant.toHash());
 #ifndef QT_BOOTSTRAPPED
 #if QT_CONFIG(regularexpression)
-    case QVariant::RegularExpression:
+    case QMetaType::QRegularExpression:
         return QCborValue(variant.toRegularExpression());
 #endif
     case QMetaType::QJsonValue:
diff --git a/src/corelib/serialization/qjsondocument.cpp b/src/corelib/serialization/qjsondocument.cpp
index fe0500bdef1..0be0fc020d3 100644
--- a/src/corelib/serialization/qjsondocument.cpp
+++ b/src/corelib/serialization/qjsondocument.cpp
@@ -405,17 +405,17 @@ QJsonDocument QJsonDocument::fromVariant(const QVariant &variant)
 {
     QJsonDocument doc;
 
-    switch (variant.type()) {
-    case QVariant::Map:
+    switch (variant.userType()) {
+    case QMetaType::QVariantMap:
         doc.setObject(QJsonObject::fromVariantMap(variant.toMap()));
         break;
-    case QVariant::Hash:
+    case QMetaType::QVariantHash:
         doc.setObject(QJsonObject::fromVariantHash(variant.toHash()));
         break;
-    case QVariant::List:
+    case QMetaType::QVariantList:
         doc.setArray(QJsonArray::fromVariantList(variant.toList()));
         break;
-    case QVariant::StringList:
+    case QMetaType::QStringList:
         doc.d = qt_make_unique<QJsonDocumentPrivate>();
         doc.d->value = QCborArray::fromStringList(variant.toStringList());
         break;
diff --git a/src/corelib/serialization/qjsonvalue.cpp b/src/corelib/serialization/qjsonvalue.cpp
index 7b6728d5259..caf81c79efa 100644
--- a/src/corelib/serialization/qjsonvalue.cpp
+++ b/src/corelib/serialization/qjsonvalue.cpp
@@ -447,29 +447,29 @@ QJsonValue QJsonValue::fromVariant(const QVariant &variant)
     switch (variant.userType()) {
     case QMetaType::Nullptr:
         return QJsonValue(Null);
-    case QVariant::Bool:
+    case QMetaType::Bool:
         return QJsonValue(variant.toBool());
-    case QVariant::Int:
+    case QMetaType::Int:
     case QMetaType::Float:
-    case QVariant::Double:
-    case QVariant::LongLong:
-    case QVariant::ULongLong:
-    case QVariant::UInt:
+    case QMetaType::Double:
+    case QMetaType::LongLong:
+    case QMetaType::ULongLong:
+    case QMetaType::UInt:
         return QJsonValue(variant.toDouble());
-    case QVariant::String:
+    case QMetaType::QString:
         return QJsonValue(variant.toString());
-    case QVariant::StringList:
+    case QMetaType::QStringList:
         return QJsonValue(QJsonArray::fromStringList(variant.toStringList()));
-    case QVariant::List:
+    case QMetaType::QVariantList:
         return QJsonValue(QJsonArray::fromVariantList(variant.toList()));
-    case QVariant::Map:
+    case QMetaType::QVariantMap:
         return QJsonValue(QJsonObject::fromVariantMap(variant.toMap()));
-    case QVariant::Hash:
+    case QMetaType::QVariantHash:
         return QJsonValue(QJsonObject::fromVariantHash(variant.toHash()));
 #ifndef QT_BOOTSTRAPPED
-    case QVariant::Url:
+    case QMetaType::QUrl:
         return QJsonValue(variant.toUrl().toString(QUrl::FullyEncoded));
-    case QVariant::Uuid:
+    case QMetaType::QUuid:
         return variant.toUuid().toString(QUuid::WithoutBraces);
     case QMetaType::QJsonValue:
         return variant.toJsonValue();
diff --git a/src/corelib/text/qlocale.cpp b/src/corelib/text/qlocale.cpp
index 93a8abb1ce4..fb45b829677 100644
--- a/src/corelib/text/qlocale.cpp
+++ b/src/corelib/text/qlocale.cpp
@@ -2430,7 +2430,7 @@ QTime QLocale::toTime(const QString &string, const QString &format, QCalendar ca
 {
     QTime time;
 #if QT_CONFIG(datetimeparser)
-    QDateTimeParser dt(QVariant::Time, QDateTimeParser::FromString, cal);
+    QDateTimeParser dt(QMetaType::QTime, QDateTimeParser::FromString, cal);
     dt.setDefaultLocale(*this);
     if (dt.parseFormat(format))
         dt.fromString(string, nullptr, &time);
@@ -2469,7 +2469,7 @@ QDate QLocale::toDate(const QString &string, const QString &format, QCalendar ca
 {
     QDate date;
 #if QT_CONFIG(datetimeparser)
-    QDateTimeParser dt(QVariant::Date, QDateTimeParser::FromString, cal);
+    QDateTimeParser dt(QMetaType::QDate, QDateTimeParser::FromString, cal);
     dt.setDefaultLocale(*this);
     if (dt.parseFormat(format))
         dt.fromString(string, &date, nullptr);
@@ -2510,7 +2510,7 @@ QDateTime QLocale::toDateTime(const QString &string, const QString &format, QCal
     QTime time;
     QDate date;
 
-    QDateTimeParser dt(QVariant::DateTime, QDateTimeParser::FromString, cal);
+    QDateTimeParser dt(QMetaType::QDateTime, QDateTimeParser::FromString, cal);
     dt.setDefaultLocale(*this);
     if (dt.parseFormat(format) && dt.fromString(string, &date, &time))
         return QDateTime(date, time);
diff --git a/src/corelib/text/qlocale_unix.cpp b/src/corelib/text/qlocale_unix.cpp
index 5e1e47eae76..207331b8ac5 100644
--- a/src/corelib/text/qlocale_unix.cpp
+++ b/src/corelib/text/qlocale_unix.cpp
@@ -234,16 +234,16 @@ QVariant QSystemLocale::query(QueryType type, QVariant in) const
     case CurrencySymbol:
         return lc_monetary.currencySymbol(QLocale::CurrencySymbolFormat(in.toUInt()));
     case CurrencyToString: {
-        switch (in.type()) {
-        case QVariant::Int:
+        switch (in.userType()) {
+        case QMetaType::Int:
             return lc_monetary.toCurrencyString(in.toInt());
-        case QVariant::UInt:
+        case QMetaType::UInt:
             return lc_monetary.toCurrencyString(in.toUInt());
-        case QVariant::Double:
+        case QMetaType::Double:
             return lc_monetary.toCurrencyString(in.toDouble());
-        case QVariant::LongLong:
+        case QMetaType::LongLong:
             return lc_monetary.toCurrencyString(in.toLongLong());
-        case QVariant::ULongLong:
+        case QMetaType::ULongLong:
             return lc_monetary.toCurrencyString(in.toULongLong());
         default:
             break;
diff --git a/src/corelib/time/qdatetime.cpp b/src/corelib/time/qdatetime.cpp
index 67d37f19d8e..80751e60a01 100644
--- a/src/corelib/time/qdatetime.cpp
+++ b/src/corelib/time/qdatetime.cpp
@@ -1791,7 +1791,7 @@ QDate QDate::fromString(const QString &string, const QString &format, QCalendar
 {
     QDate date;
 #if QT_CONFIG(datetimeparser)
-    QDateTimeParser dt(QVariant::Date, QDateTimeParser::FromString, cal);
+    QDateTimeParser dt(QMetaType::QDate, QDateTimeParser::FromString, cal);
     // dt.setDefaultLocale(QLocale::c()); ### Qt 6
     if (dt.parseFormat(format))
         dt.fromString(string, &date, nullptr);
@@ -2537,7 +2537,7 @@ QTime QTime::fromString(const QString &string, const QString &format)
 {
     QTime time;
 #if QT_CONFIG(datetimeparser)
-    QDateTimeParser dt(QVariant::Time, QDateTimeParser::FromString, QCalendar());
+    QDateTimeParser dt(QMetaType::QTime, QDateTimeParser::FromString, QCalendar());
     // dt.setDefaultLocale(QLocale::c()); ### Qt 6
     if (dt.parseFormat(format))
         dt.fromString(string, nullptr, &time);
@@ -5482,7 +5482,7 @@ QDateTime QDateTime::fromString(const QString &string, const QString &format, QC
     QTime time;
     QDate date;
 
-    QDateTimeParser dt(QVariant::DateTime, QDateTimeParser::FromString, cal);
+    QDateTimeParser dt(QMetaType::QDateTime, QDateTimeParser::FromString, cal);
     // dt.setDefaultLocale(QLocale::c()); ### Qt 6
     if (dt.parseFormat(format) && dt.fromString(string, &date, &time))
         return QDateTime(date, time);
diff --git a/src/corelib/time/qdatetimeparser.cpp b/src/corelib/time/qdatetimeparser.cpp
index 31d8e6cc200..70460ae6322 100644
--- a/src/corelib/time/qdatetimeparser.cpp
+++ b/src/corelib/time/qdatetimeparser.cpp
@@ -425,7 +425,7 @@ bool QDateTimeParser::parseFormat(const QString &newFormat)
             switch (sect) {
             case 'H':
             case 'h':
-                if (parserType != QVariant::Date) {
+                if (parserType != QMetaType::QDate) {
                     const Section hour = (sect == 'h') ? Hour12Section : Hour24Section;
                     const SectionNode sn = { hour, i - add, countRepeat(newFormat, i, 2), 0 };
                     newSectionNodes.append(sn);
@@ -436,7 +436,7 @@ bool QDateTimeParser::parseFormat(const QString &newFormat)
                 }
                 break;
             case 'm':
-                if (parserType != QVariant::Date) {
+                if (parserType != QMetaType::QDate) {
                     const SectionNode sn = { MinuteSection, i - add, countRepeat(newFormat, i, 2), 0 };
                     newSectionNodes.append(sn);
                     appendSeparator(&newSeparators, newFormat, index, i - index, lastQuote);
@@ -446,7 +446,7 @@ bool QDateTimeParser::parseFormat(const QString &newFormat)
                 }
                 break;
             case 's':
-                if (parserType != QVariant::Date) {
+                if (parserType != QMetaType::QDate) {
                     const SectionNode sn = { SecondSection, i - add, countRepeat(newFormat, i, 2), 0 };
                     newSectionNodes.append(sn);
                     appendSeparator(&newSeparators, newFormat, index, i - index, lastQuote);
@@ -457,7 +457,7 @@ bool QDateTimeParser::parseFormat(const QString &newFormat)
                 break;
 
             case 'z':
-                if (parserType != QVariant::Date) {
+                if (parserType != QMetaType::QDate) {
                     const SectionNode sn = { MSecSection, i - add, countRepeat(newFormat, i, 3) < 3 ? 1 : 3, 0 };
                     newSectionNodes.append(sn);
                     appendSeparator(&newSeparators, newFormat, index, i - index, lastQuote);
@@ -468,7 +468,7 @@ bool QDateTimeParser::parseFormat(const QString &newFormat)
                 break;
             case 'A':
             case 'a':
-                if (parserType != QVariant::Date) {
+                if (parserType != QMetaType::QDate) {
                     const bool cap = (sect == 'A');
                     const SectionNode sn = { AmPmSection, i - add, (cap ? 1 : 0), 0 };
                     newSectionNodes.append(sn);
@@ -482,7 +482,7 @@ bool QDateTimeParser::parseFormat(const QString &newFormat)
                 }
                 break;
             case 'y':
-                if (parserType != QVariant::Time) {
+                if (parserType != QMetaType::QTime) {
                     const int repeat = countRepeat(newFormat, i, 4);
                     if (repeat >= 2) {
                         const SectionNode sn = { repeat == 4 ? YearSection : YearSection2Digits,
@@ -496,7 +496,7 @@ bool QDateTimeParser::parseFormat(const QString &newFormat)
                 }
                 break;
             case 'M':
-                if (parserType != QVariant::Time) {
+                if (parserType != QMetaType::QTime) {
                     const SectionNode sn = { MonthSection, i - add, countRepeat(newFormat, i, 4), 0 };
                     newSectionNodes.append(sn);
                     newSeparators.append(unquote(newFormat.midRef(index, i - index)));
@@ -506,7 +506,7 @@ bool QDateTimeParser::parseFormat(const QString &newFormat)
                 }
                 break;
             case 'd':
-                if (parserType != QVariant::Time) {
+                if (parserType != QMetaType::QTime) {
                     const int repeat = countRepeat(newFormat, i, 4);
                     const Section sectionType = (repeat == 4 ? DayOfWeekSectionLong
                         : (repeat == 3 ? DayOfWeekSectionShort : DaySection));
@@ -519,7 +519,7 @@ bool QDateTimeParser::parseFormat(const QString &newFormat)
                 }
                 break;
             case 't':
-                if (parserType != QVariant::Time) {
+                if (parserType != QMetaType::QTime) {
                     const SectionNode sn = { TimeZoneSection, i - add, countRepeat(newFormat, i, 4), 0 };
                     newSectionNodes.append(sn);
                     appendSeparator(&newSeparators, newFormat, index, i - index, lastQuote);
@@ -1252,7 +1252,7 @@ QDateTimeParser::scanString(const QDateTime &defaultValue,
         return StateNode();
     }
 
-    if (parserType != QVariant::Time) {
+    if (parserType != QMetaType::QTime) {
         if (year % 100 != year2digits && (isSet & YearSection2Digits)) {
             if (!(isSet & YearSection)) {
                 year = (year / 100) * 100;
@@ -1322,7 +1322,7 @@ QDateTimeParser::scanString(const QDateTime &defaultValue,
         }
     }
 
-    if (parserType != QVariant::Date) {
+    if (parserType != QMetaType::QDate) {
         if (isSet & Hour12Section) {
             const bool hasHour = isSet & Hour24Section;
             if (ampm == -1) {
@@ -1360,7 +1360,7 @@ QDateTimeParser::scanString(const QDateTime &defaultValue,
 
     // If hour wasn't specified, check the default we're using exists on the
     // given date (which might be a spring-forward, skipping an hour).
-    if (parserType == QVariant::DateTime && !(isSet & HourSectionMask) && !when.isValid()) {
+    if (parserType == QMetaType::QDateTime && !(isSet & HourSectionMask) && !when.isValid()) {
         qint64 msecs = when.toMSecsSinceEpoch();
         // Fortunately, that gets a useful answer, even though when is invalid ...
         const QDateTime replace =
diff --git a/src/corelib/time/qdatetimeparser_p.h b/src/corelib/time/qdatetimeparser_p.h
index ec4e4e4df25..5c612ef6a4c 100644
--- a/src/corelib/time/qdatetimeparser_p.h
+++ b/src/corelib/time/qdatetimeparser_p.h
@@ -83,7 +83,7 @@ public:
         FromString,
         DateTimeEdit
     };
-    QDateTimeParser(QVariant::Type t, Context ctx, const QCalendar &cal = QCalendar())
+    QDateTimeParser(QMetaType::Type t, Context ctx, const QCalendar &cal = QCalendar())
         : currentSectionIndex(-1), cachedDay(-1), parserType(t),
         fixday(false), spec(Qt::LocalTime), context(ctx), calendar(cal)
     {
@@ -295,7 +295,7 @@ protected: // for the benefit of QDateTimeEditPrivate
     QStringList separators;
     QString displayFormat;
     QLocale defaultLocale;
-    QVariant::Type parserType;
+    QMetaType::Type parserType;
     bool fixday;
     Qt::TimeSpec spec; // spec if used by QDateTimeEdit
     Context context;
diff --git a/src/dbus/qdbusabstractinterface.cpp b/src/dbus/qdbusabstractinterface.cpp
index 8a11767140c..d603264a1e2 100644
--- a/src/dbus/qdbusabstractinterface.cpp
+++ b/src/dbus/qdbusabstractinterface.cpp
@@ -157,7 +157,7 @@ bool QDBusAbstractInterfacePrivate::property(const QMetaProperty &mp, void *retu
     const int type = mp.userType();
     // is this metatype registered?
     const char *expectedSignature = "";
-    if (int(mp.type()) != QMetaType::QVariant) {
+    if (int(mp.userType()) != QMetaType::QVariant) {
         expectedSignature = QDBusMetaType::typeToSignature(type);
         if (expectedSignature == nullptr) {
             qWarning("QDBusAbstractInterface: type %s must be registered with Qt D-Bus before it can be "
diff --git a/src/dbus/qdbusargument.h b/src/dbus/qdbusargument.h
index 477bd1e8fd2..339f8c5dc8e 100644
--- a/src/dbus/qdbusargument.h
+++ b/src/dbus/qdbusargument.h
@@ -330,7 +330,7 @@ inline const QDBusArgument &operator>>(const QDBusArgument &arg, QMap<Key, T> &m
 
 inline QDBusArgument &operator<<(QDBusArgument &arg, const QVariantMap &map)
 {
-    arg.beginMap(QVariant::String, qMetaTypeId<QDBusVariant>());
+    arg.beginMap(QMetaType::QString, qMetaTypeId<QDBusVariant>());
     QVariantMap::ConstIterator it = map.constBegin();
     QVariantMap::ConstIterator end = map.constEnd();
     for ( ; it != end; ++it) {
@@ -379,7 +379,7 @@ inline const QDBusArgument &operator>>(const QDBusArgument &arg, QHash<Key, T> &
 
 inline QDBusArgument &operator<<(QDBusArgument &arg, const QVariantHash &map)
 {
-    arg.beginMap(QVariant::String, qMetaTypeId<QDBusVariant>());
+    arg.beginMap(QMetaType::QString, qMetaTypeId<QDBusVariant>());
     QVariantHash::ConstIterator it = map.constBegin();
     QVariantHash::ConstIterator end = map.constEnd();
     for ( ; it != end; ++it) {
diff --git a/src/dbus/qdbusintegrator.cpp b/src/dbus/qdbusintegrator.cpp
index bca02be59e1..669b330f1db 100644
--- a/src/dbus/qdbusintegrator.cpp
+++ b/src/dbus/qdbusintegrator.cpp
@@ -1822,7 +1822,7 @@ void QDBusConnectionPrivate::setConnection(DBusConnection *dbc, const QDBusError
     hook.service = QDBusUtil::dbusService();
     hook.path.clear(); // no matching
     hook.obj = this;
-    hook.params << QMetaType::Void << QVariant::String; // both functions take a QString as parameter and return void
+    hook.params << QMetaType::Void << QMetaType::QString; // both functions take a QString as parameter and return void
 
     hook.midx = staticMetaObject.indexOfSlot("registerServiceNoLock(QString)");
     Q_ASSERT(hook.midx != -1);
@@ -1836,7 +1836,7 @@ void QDBusConnectionPrivate::setConnection(DBusConnection *dbc, const QDBusError
     // we don't use connectSignal here because the rules are added by connectSignal on a per-need basis
     hook.params.clear();
     hook.params.reserve(4);
-    hook.params << QMetaType::Void << QVariant::String << QVariant::String << QVariant::String;
+    hook.params << QMetaType::Void << QMetaType::QString << QMetaType::QString << QMetaType::QString;
     hook.midx = staticMetaObject.indexOfSlot("serviceOwnerChangedNoLock(QString,QString,QString)");
     Q_ASSERT(hook.midx != -1);
     signalHooks.insert(QLatin1String("NameOwnerChanged:" DBUS_INTERFACE_DBUS), hook);
diff --git a/src/dbus/qdbusinterface.cpp b/src/dbus/qdbusinterface.cpp
index fb958a89544..c1b0feea378 100644
--- a/src/dbus/qdbusinterface.cpp
+++ b/src/dbus/qdbusinterface.cpp
@@ -55,7 +55,7 @@ static void copyArgument(void *to, int id, const QVariant &arg)
 {
     if (id == arg.userType()) {
         switch (id) {
-        case QVariant::Bool:
+        case QMetaType::Bool:
             *reinterpret_cast<bool *>(to) = arg.toBool();
             return;
 
@@ -71,35 +71,35 @@ static void copyArgument(void *to, int id, const QVariant &arg)
             *reinterpret_cast<ushort *>(to) = qvariant_cast<ushort>(arg);
             return;
 
-        case QVariant::Int:
+        case QMetaType::Int:
             *reinterpret_cast<int *>(to) = arg.toInt();
             return;
 
-        case QVariant::UInt:
+        case QMetaType::UInt:
             *reinterpret_cast<uint *>(to) = arg.toUInt();
             return;
 
-        case QVariant::LongLong:
+        case QMetaType::LongLong:
             *reinterpret_cast<qlonglong *>(to) = arg.toLongLong();
             return;
 
-        case QVariant::ULongLong:
+        case QMetaType::ULongLong:
             *reinterpret_cast<qulonglong *>(to) = arg.toULongLong();
             return;
 
-        case QVariant::Double:
+        case QMetaType::Double:
             *reinterpret_cast<double *>(to) = arg.toDouble();
             return;
 
-        case QVariant::String:
+        case QMetaType::QString:
             *reinterpret_cast<QString *>(to) = arg.toString();
             return;
 
-        case QVariant::ByteArray:
+        case QMetaType::QByteArray:
             *reinterpret_cast<QByteArray *>(to) = arg.toByteArray();
             return;
 
-        case QVariant::StringList:
+        case QMetaType::QStringList:
             *reinterpret_cast<QStringList *>(to) = arg.toStringList();
             return;
         }
diff --git a/src/dbus/qdbusmarshaller.cpp b/src/dbus/qdbusmarshaller.cpp
index 46b41d1c07f..c80131f41df 100644
--- a/src/dbus/qdbusmarshaller.cpp
+++ b/src/dbus/qdbusmarshaller.cpp
@@ -190,7 +190,7 @@ inline bool QDBusMarshaller::append(const QDBusVariant &arg)
 
     const QVariant &value = arg.variant();
     int id = value.userType();
-    if (id == QVariant::Invalid) {
+    if (id == QMetaType::UnknownType) {
         qWarning("QDBusMarshaller: cannot add a null QDBusVariant");
         error(QLatin1String("Variant containing QVariant::Invalid passed in arguments"));
         return false;
@@ -384,7 +384,7 @@ void QDBusMarshaller::error(const QString &msg)
 bool QDBusMarshaller::appendVariantInternal(const QVariant &arg)
 {
     int id = arg.userType();
-    if (id == QVariant::Invalid) {
+    if (id == QMetaType::UnknownType) {
         qWarning("QDBusMarshaller: cannot add an invalid QVariant");
         error(QLatin1String("Variant containing QVariant::Invalid passed in arguments"));
         return false;
@@ -485,12 +485,12 @@ bool QDBusMarshaller::appendVariantInternal(const QVariant &arg)
     case DBUS_TYPE_ARRAY:
         // could be many things
         // find out what kind of array it is
-        switch (arg.type()) {
-        case QVariant::StringList:
+        switch (arg.userType()) {
+        case QMetaType::QStringList:
             append( arg.toStringList() );
             return true;
 
-        case QVariant::ByteArray:
+        case QMetaType::QByteArray:
             append( arg.toByteArray() );
             return true;
 
diff --git a/src/dbus/qdbusmessage.cpp b/src/dbus/qdbusmessage.cpp
index 71cdec93caa..10d2f07d4d2 100644
--- a/src/dbus/qdbusmessage.cpp
+++ b/src/dbus/qdbusmessage.cpp
@@ -276,7 +276,7 @@ QDBusMessage QDBusMessagePrivate::makeLocal(const QDBusConnectionPrivate &conn,
     for ( ; it != end; ++it) {
         int id = it->userType();
         const char *signature = QDBusMetaType::typeToSignature(id);
-        if ((id != QVariant::StringList && id != QVariant::ByteArray &&
+        if ((id != QMetaType::QStringList && id != QMetaType::QByteArray &&
              qstrlen(signature) != 1) || id == qMetaTypeId<QDBusVariant>()) {
             // yes, we are
             // we must marshall and demarshall again so as to create QDBusArgument
diff --git a/src/dbus/qdbusmetaobject.cpp b/src/dbus/qdbusmetaobject.cpp
index 3c529ab755f..5265568f423 100644
--- a/src/dbus/qdbusmetaobject.cpp
+++ b/src/dbus/qdbusmetaobject.cpp
@@ -158,10 +158,10 @@ QDBusMetaObjectGenerator::findType(const QByteArray &signature,
                                    const char *direction, int id)
 {
     Type result;
-    result.id = QVariant::Invalid;
+    result.id = QMetaType::UnknownType;
 
     int type = QDBusMetaType::signatureToType(signature);
-    if (type == QVariant::Invalid && !qt_dbus_metaobject_skip_annotations) {
+    if (type == QMetaType::UnknownType && !qt_dbus_metaobject_skip_annotations) {
         // it's not a type normally handled by our meta type system
         // it must contain an annotation
         QString annotationName = QString::fromLatin1("org.qtproject.QtDBus.QtTypeName");
@@ -189,7 +189,7 @@ QDBusMetaObjectGenerator::findType(const QByteArray &signature,
             type = QMetaType::type(typeName);
         }
 
-        if (type == QVariant::Invalid || signature != QDBusMetaType::typeToSignature(type)) {
+        if (type == QMetaType::UnknownType || signature != QDBusMetaType::typeToSignature(type)) {
             // type is still unknown or doesn't match back to the signature that it
             // was expected to, so synthesize a fake type
             typeName = "QDBusRawType<0x" + signature.toHex() + ">*";
@@ -197,16 +197,16 @@ QDBusMetaObjectGenerator::findType(const QByteArray &signature,
         }
 
         result.name = typeName;
-    } else if (type == QVariant::Invalid) {
+    } else if (type == QMetaType::UnknownType) {
         // this case is used only by the qdbus command-line tool
         // invalid, let's create an impossible type that contains the signature
 
         if (signature == "av") {
             result.name = "QVariantList";
-            type = QVariant::List;
+            type = QMetaType::QVariantList;
         } else if (signature == "a{sv}") {
             result.name = "QVariantMap";
-            type = QVariant::Map;
+            type = QMetaType::QVariantMap;
         } else if (signature == "a{ss}") {
             result.name = "QMap<QString,QString>";
             type = qMetaTypeId<QMap<QString, QString> >();
@@ -246,7 +246,7 @@ void QDBusMetaObjectGenerator::parseMethods()
             const QDBusIntrospection::Argument &arg = m.inputArgs.at(i);
 
             Type type = findType(arg.type.toLatin1(), m.annotations, "In", i);
-            if (type.id == QVariant::Invalid) {
+            if (type.id == QMetaType::UnknownType) {
                 ok = false;
                 break;
             }
@@ -265,7 +265,7 @@ void QDBusMetaObjectGenerator::parseMethods()
             const QDBusIntrospection::Argument &arg = m.outputArgs.at(i);
 
             Type type = findType(arg.type.toLatin1(), m.annotations, "Out", i);
-            if (type.id == QVariant::Invalid) {
+            if (type.id == QMetaType::UnknownType) {
                 ok = false;
                 break;
             }
@@ -322,7 +322,7 @@ void QDBusMetaObjectGenerator::parseSignals()
             const QDBusIntrospection::Argument &arg = s.outputArgs.at(i);
 
             Type type = findType(arg.type.toLatin1(), s.annotations, "Out", i);
-            if (type.id == QVariant::Invalid) {
+            if (type.id == QMetaType::UnknownType) {
                 ok = false;
                 break;
             }
@@ -358,7 +358,7 @@ void QDBusMetaObjectGenerator::parseProperties()
         const QDBusIntrospection::Property &p = *prop_it;
         Property mp;
         Type type = findType(p.type.toLatin1(), p.annotations);
-        if (type.id == QVariant::Invalid)
+        if (type.id == QMetaType::UnknownType)
             continue;
 
         QByteArray name = p.name.toLatin1();
diff --git a/src/dbus/qdbusmetatype.cpp b/src/dbus/qdbusmetatype.cpp
index e3804f74f83..bcbb22fba65 100644
--- a/src/dbus/qdbusmetatype.cpp
+++ b/src/dbus/qdbusmetatype.cpp
@@ -325,7 +325,7 @@ int QDBusMetaType::signatureToType(const char *signature)
     switch (signature[0])
     {
     case DBUS_TYPE_BOOLEAN:
-        return QVariant::Bool;
+        return QMetaType::Bool;
 
     case DBUS_TYPE_BYTE:
         return QMetaType::UChar;
@@ -337,22 +337,22 @@ int QDBusMetaType::signatureToType(const char *signature)
         return QMetaType::UShort;
 
     case DBUS_TYPE_INT32:
-        return QVariant::Int;
+        return QMetaType::Int;
 
     case DBUS_TYPE_UINT32:
-        return QVariant::UInt;
+        return QMetaType::UInt;
 
     case DBUS_TYPE_INT64:
-        return QVariant::LongLong;
+        return QMetaType::LongLong;
 
     case DBUS_TYPE_UINT64:
-        return QVariant::ULongLong;
+        return QMetaType::ULongLong;
 
     case DBUS_TYPE_DOUBLE:
-        return QVariant::Double;
+        return QMetaType::Double;
 
     case DBUS_TYPE_STRING:
-        return QVariant::String;
+        return QMetaType::QString;
 
     case DBUS_TYPE_OBJECT_PATH:
         return QDBusMetaTypeId::objectpath();
@@ -369,13 +369,13 @@ int QDBusMetaType::signatureToType(const char *signature)
     case DBUS_TYPE_ARRAY:       // special case
         switch (signature[1]) {
         case DBUS_TYPE_BYTE:
-            return QVariant::ByteArray;
+            return QMetaType::QByteArray;
 
         case DBUS_TYPE_STRING:
-            return QVariant::StringList;
+            return QMetaType::QStringList;
 
         case DBUS_TYPE_VARIANT:
-            return QVariant::List;
+            return QMetaType::QVariantList;
 
         case DBUS_TYPE_OBJECT_PATH:
             return qMetaTypeId<QList<QDBusObjectPath> >();
@@ -409,7 +409,7 @@ const char *QDBusMetaType::typeToSignature(int type)
     case QMetaType::UChar:
         return DBUS_TYPE_BYTE_AS_STRING;
 
-    case QVariant::Bool:
+    case QMetaType::Bool:
         return DBUS_TYPE_BOOLEAN_AS_STRING;
 
     case QMetaType::Short:
@@ -418,29 +418,29 @@ const char *QDBusMetaType::typeToSignature(int type)
     case QMetaType::UShort:
         return DBUS_TYPE_UINT16_AS_STRING;
 
-    case QVariant::Int:
+    case QMetaType::Int:
         return DBUS_TYPE_INT32_AS_STRING;
 
-    case QVariant::UInt:
+    case QMetaType::UInt:
         return DBUS_TYPE_UINT32_AS_STRING;
 
-    case QVariant::LongLong:
+    case QMetaType::LongLong:
         return DBUS_TYPE_INT64_AS_STRING;
 
-    case QVariant::ULongLong:
+    case QMetaType::ULongLong:
         return DBUS_TYPE_UINT64_AS_STRING;
 
-    case QVariant::Double:
+    case QMetaType::Double:
         return DBUS_TYPE_DOUBLE_AS_STRING;
 
-    case QVariant::String:
+    case QMetaType::QString:
         return DBUS_TYPE_STRING_AS_STRING;
 
-    case QVariant::StringList:
+    case QMetaType::QStringList:
         return DBUS_TYPE_ARRAY_AS_STRING
             DBUS_TYPE_STRING_AS_STRING; // as
 
-    case QVariant::ByteArray:
+    case QMetaType::QByteArray:
         return DBUS_TYPE_ARRAY_AS_STRING
             DBUS_TYPE_BYTE_AS_STRING; // ay
     }
diff --git a/src/dbus/qdbusutil.cpp b/src/dbus/qdbusutil.cpp
index 09311d1ad4f..b4ee6811ac5 100644
--- a/src/dbus/qdbusutil.cpp
+++ b/src/dbus/qdbusutil.cpp
@@ -82,7 +82,7 @@ static bool variantToString(const QVariant &arg, QString &out)
 {
     int argType = arg.userType();
 
-    if (argType == QVariant::StringList) {
+    if (argType == QMetaType::QStringList) {
         out += QLatin1Char('{');
         const QStringList list = arg.toStringList();
         for (const QString &item : list)
@@ -90,7 +90,7 @@ static bool variantToString(const QVariant &arg, QString &out)
         if (!list.isEmpty())
             out.chop(2);
         out += QLatin1Char('}');
-    } else if (argType == QVariant::ByteArray) {
+    } else if (argType == QMetaType::QByteArray) {
         out += QLatin1Char('{');
         QByteArray list = arg.toByteArray();
         for (int i = 0; i < list.count(); ++i) {
@@ -100,7 +100,7 @@ static bool variantToString(const QVariant &arg, QString &out)
         if (!list.isEmpty())
             out.chop(2);
         out += QLatin1Char('}');
-    } else if (argType == QVariant::List) {
+    } else if (argType == QMetaType::QVariantList) {
         out += QLatin1Char('{');
         const QList<QVariant> list = arg.toList();
         for (const QVariant &item : list) {
@@ -148,7 +148,7 @@ static bool variantToString(const QVariant &arg, QString &out)
         if (!variantToString(v, out))
             return false;
         out += QLatin1Char(']');
-    } else if (arg.canConvert(QVariant::String)) {
+    } else if (arg.canConvert(QMetaType::QString)) {
         out += QLatin1Char('\"') + arg.toString() + QLatin1Char('\"');
     } else {
         out += QLatin1Char('[');
diff --git a/src/dbus/qdbusxmlgenerator.cpp b/src/dbus/qdbusxmlgenerator.cpp
index c6b3b90508b..7370ce0de36 100644
--- a/src/dbus/qdbusxmlgenerator.cpp
+++ b/src/dbus/qdbusxmlgenerator.cpp
@@ -113,7 +113,7 @@ static QString generateInterfaceXml(const QMetaObject *mo, int flags, int method
                            QLatin1String(signature),
                            accessAsString(mp.isReadable(), mp.isWritable()));
 
-            if (QDBusMetaType::signatureToType(signature) == QVariant::Invalid) {
+            if (QDBusMetaType::signatureToType(signature) == QMetaType::UnknownType) {
                 const char *typeName = QMetaType::typeName(typeId);
                 retval += QLatin1String(">\n      <annotation name=\"org.qtproject.QtDBus.QtTypeName\" value=\"%3\"/>\n    </property>\n")
                           .arg(typeNameToXml(typeName));
@@ -161,7 +161,7 @@ static QString generateInterfaceXml(const QMetaObject *mo, int flags, int method
                        .arg(typeNameToXml(typeName));
 
                 // do we need to describe this argument?
-                if (QDBusMetaType::signatureToType(typeName) == QVariant::Invalid)
+                if (QDBusMetaType::signatureToType(typeName) == QMetaType::UnknownType)
                     xml += QLatin1String("      <annotation name=\"org.qtproject.QtDBus.QtTypeName.Out0\" value=\"%1\"/>\n")
                         .arg(typeNameToXml(QMetaType::typeName(typeId)));
             } else {
@@ -208,7 +208,7 @@ static QString generateInterfaceXml(const QMetaObject *mo, int flags, int method
                                      qUtf16Printable(name), signature, isOutput ? "out" : "in");
 
             // do we need to describe this argument?
-            if (QDBusMetaType::signatureToType(signature) == QVariant::Invalid) {
+            if (QDBusMetaType::signatureToType(signature) == QMetaType::UnknownType) {
                 const char *typeName = QMetaType::typeName(types.at(j));
                 xml += QString::fromLatin1("      <annotation name=\"org.qtproject.QtDBus.QtTypeName.%1%2\" value=\"%3\"/>\n")
                        .arg(isOutput ? QLatin1String("Out") : QLatin1String("In"))
diff --git a/src/gui/image/qbitmap.cpp b/src/gui/image/qbitmap.cpp
index 455045eb571..a44f7151b15 100644
--- a/src/gui/image/qbitmap.cpp
+++ b/src/gui/image/qbitmap.cpp
@@ -218,7 +218,7 @@ QBitmap::~QBitmap()
 */
 QBitmap::operator QVariant() const
 {
-    return QVariant(QVariant::Bitmap, this);
+    return QVariant(QMetaType::QBitmap, this);
 }
 
 static QBitmap makeBitmap(QImage &&image, Qt::ImageConversionFlags flags)
diff --git a/src/gui/image/qicon.cpp b/src/gui/image/qicon.cpp
index 19be066d234..38285dd827c 100644
--- a/src/gui/image/qicon.cpp
+++ b/src/gui/image/qicon.cpp
@@ -782,7 +782,7 @@ QIcon &QIcon::operator=(const QIcon &other)
 */
 QIcon::operator QVariant() const
 {
-    return QVariant(QVariant::Icon, this);
+    return QVariant(QMetaType::QIcon, this);
 }
 
 /*! \fn int QIcon::serialNumber() const
diff --git a/src/gui/image/qimage.cpp b/src/gui/image/qimage.cpp
index 3ddc52bed41..62d2d0e948b 100644
--- a/src/gui/image/qimage.cpp
+++ b/src/gui/image/qimage.cpp
@@ -1067,7 +1067,7 @@ int QImage::devType() const
 */
 QImage::operator QVariant() const
 {
-    return QVariant(QVariant::Image, this);
+    return QVariant(QMetaType::QImage, this);
 }
 
 /*!
diff --git a/src/gui/image/qpixmap.cpp b/src/gui/image/qpixmap.cpp
index 3fce64cb206..e914d7697f1 100644
--- a/src/gui/image/qpixmap.cpp
+++ b/src/gui/image/qpixmap.cpp
@@ -402,7 +402,7 @@ QPixmap &QPixmap::operator=(const QPixmap &pixmap)
 */
 QPixmap::operator QVariant() const
 {
-    return QVariant(QVariant::Pixmap, this);
+    return QVariant(QMetaType::QPixmap, this);
 }
 
 /*!
diff --git a/src/gui/itemmodels/qstandarditemmodel.cpp b/src/gui/itemmodels/qstandarditemmodel.cpp
index 9bdc22b49eb..fc9424763ef 100644
--- a/src/gui/itemmodels/qstandarditemmodel.cpp
+++ b/src/gui/itemmodels/qstandarditemmodel.cpp
@@ -926,7 +926,7 @@ void QStandardItem::setData(const QVariant &value, int role)
     for (it = d->values.begin(); it != d->values.end(); ++it) {
         if ((*it).role == role) {
             if (value.isValid()) {
-                if ((*it).value.type() == value.type() && (*it).value == value)
+                if ((*it).value.userType() == value.userType() && (*it).value == value)
                     return;
                 (*it).value = value;
             } else {
diff --git a/src/gui/kernel/qcursor.cpp b/src/gui/kernel/qcursor.cpp
index f5a794b642d..339284aa30f 100644
--- a/src/gui/kernel/qcursor.cpp
+++ b/src/gui/kernel/qcursor.cpp
@@ -657,7 +657,7 @@ QCursor &QCursor::operator=(const QCursor &c)
 */
 QCursor::operator QVariant() const
 {
-    return QVariant(QVariant::Cursor, this);
+    return QVariant(QMetaType::QCursor, this);
 }
 
 #ifndef QT_NO_DEBUG_STREAM
diff --git a/src/gui/kernel/qguivariant.cpp b/src/gui/kernel/qguivariant.cpp
index 4ed9d032f66..596b7e44fdb 100644
--- a/src/gui/kernel/qguivariant.cpp
+++ b/src/gui/kernel/qguivariant.cpp
@@ -178,25 +178,25 @@ static bool convert(const QVariant::Private *d, int t,
                  void *result, bool *ok)
 {
     switch (t) {
-    case QVariant::ByteArray:
-        if (d->type == QVariant::Color) {
+    case QMetaType::QByteArray:
+        if (d->type == QMetaType::QColor) {
             const QColor *c = v_cast<QColor>(d);
             *static_cast<QByteArray *>(result) = c->name(c->alpha() != 255 ? QColor::HexArgb : QColor::HexRgb).toLatin1();
             return true;
         }
         break;
-    case QVariant::String: {
+    case QMetaType::QString: {
         QString *str = static_cast<QString *>(result);
         switch (d->type) {
 #ifndef QT_NO_SHORTCUT
-        case QVariant::KeySequence:
+        case QMetaType::QKeySequence:
             *str = (*v_cast<QKeySequence>(d)).toString(QKeySequence::NativeText);
             return true;
 #endif
-        case QVariant::Font:
+        case QMetaType::QFont:
             *str = v_cast<QFont>(d)->toString();
             return true;
-        case QVariant::Color: {
+        case QMetaType::QColor: {
             const QColor *c = v_cast<QColor>(d);
             *str = c->name(c->alpha() != 255 ? QColor::HexArgb : QColor::HexRgb);
             return true;
@@ -206,85 +206,85 @@ static bool convert(const QVariant::Private *d, int t,
         }
         break;
     }
-    case QVariant::Pixmap:
-        if (d->type == QVariant::Image) {
+    case QMetaType::QPixmap:
+        if (d->type == QMetaType::QImage) {
             *static_cast<QPixmap *>(result) = QPixmap::fromImage(*v_cast<QImage>(d));
             return true;
-        } else if (d->type == QVariant::Bitmap) {
+        } else if (d->type == QMetaType::QBitmap) {
             *static_cast<QPixmap *>(result) = *v_cast<QBitmap>(d);
             return true;
-        } else if (d->type == QVariant::Brush) {
+        } else if (d->type == QMetaType::QBrush) {
             if (v_cast<QBrush>(d)->style() == Qt::TexturePattern) {
                 *static_cast<QPixmap *>(result) = v_cast<QBrush>(d)->texture();
                 return true;
             }
         }
         break;
-    case QVariant::Image:
-        if (d->type == QVariant::Pixmap) {
+    case QMetaType::QImage:
+        if (d->type == QMetaType::QPixmap) {
             *static_cast<QImage *>(result) = v_cast<QPixmap>(d)->toImage();
             return true;
-        } else if (d->type == QVariant::Bitmap) {
+        } else if (d->type == QMetaType::QBitmap) {
             *static_cast<QImage *>(result) = v_cast<QBitmap>(d)->toImage();
             return true;
         }
         break;
-    case QVariant::Bitmap:
-        if (d->type == QVariant::Pixmap) {
+    case QMetaType::QBitmap:
+        if (d->type == QMetaType::QPixmap) {
             *static_cast<QBitmap *>(result) = *v_cast<QPixmap>(d);
             return true;
-        } else if (d->type == QVariant::Image) {
+        } else if (d->type == QMetaType::QImage) {
             *static_cast<QBitmap *>(result) = QBitmap::fromImage(*v_cast<QImage>(d));
             return true;
         }
         break;
 #ifndef QT_NO_SHORTCUT
-    case QVariant::Int:
-        if (d->type == QVariant::KeySequence) {
+    case QMetaType::Int:
+        if (d->type == QMetaType::QKeySequence) {
             const QKeySequence &seq = *v_cast<QKeySequence>(d);
             *static_cast<int *>(result) = seq.isEmpty() ? 0 : seq[0];
             return true;
         }
         break;
 #endif
-    case QVariant::Font:
-        if (d->type == QVariant::String) {
+    case QMetaType::QFont:
+        if (d->type == QMetaType::QString) {
             QFont *f = static_cast<QFont *>(result);
             f->fromString(*v_cast<QString>(d));
             return true;
         }
         break;
-    case QVariant::Color:
-        if (d->type == QVariant::String) {
+    case QMetaType::QColor:
+        if (d->type == QMetaType::QString) {
             static_cast<QColor *>(result)->setNamedColor(*v_cast<QString>(d));
             return static_cast<QColor *>(result)->isValid();
-        } else if (d->type == QVariant::ByteArray) {
+        } else if (d->type == QMetaType::QByteArray) {
             static_cast<QColor *>(result)->setNamedColor(QLatin1String(*v_cast<QByteArray>(d)));
             return true;
-        } else if (d->type == QVariant::Brush) {
+        } else if (d->type == QMetaType::QBrush) {
             if (v_cast<QBrush>(d)->style() == Qt::SolidPattern) {
                 *static_cast<QColor *>(result) = v_cast<QBrush>(d)->color();
                 return true;
             }
         }
         break;
-    case QVariant::Brush:
-        if (d->type == QVariant::Color) {
+    case QMetaType::QBrush:
+        if (d->type == QMetaType::QColor) {
             *static_cast<QBrush *>(result) = QBrush(*v_cast<QColor>(d));
             return true;
-        } else if (d->type == QVariant::Pixmap) {
+        } else if (d->type == QMetaType::QPixmap) {
             *static_cast<QBrush *>(result) = QBrush(*v_cast<QPixmap>(d));
             return true;
         }
         break;
 #ifndef QT_NO_SHORTCUT
-    case QVariant::KeySequence: {
+    case QMetaType::QKeySequence: {
         QKeySequence *seq = static_cast<QKeySequence *>(result);
         switch (d->type) {
-        case QVariant::String:
+        case QMetaType::QString:
             *seq = QKeySequence(*v_cast<QString>(d));
             return true;
-        case QVariant::Int:
+        case QMetaType::Int:
             *seq = QKeySequence(d->data.i);
             return true;
         default:
@@ -294,7 +294,7 @@ static bool convert(const QVariant::Private *d, int t,
     }
 #endif
 #ifndef QT_NO_ICON
-    case QVariant::Icon: {
+    case QMetaType::QIcon: {
         if (ok)
             *ok = false;
         return false;
diff --git a/src/gui/kernel/qinternalmimedata.cpp b/src/gui/kernel/qinternalmimedata.cpp
index 8f4da1afb56..d5cdc743ee9 100644
--- a/src/gui/kernel/qinternalmimedata.cpp
+++ b/src/gui/kernel/qinternalmimedata.cpp
@@ -112,22 +112,23 @@ QVariant QInternalMimeData::retrieveData(const QString &mimeType, QVariant::Type
 {
     QVariant data = retrieveData_sys(mimeType, type);
     if (mimeType == QLatin1String("application/x-qt-image")) {
-        if (data.isNull() || (data.type() == QVariant::ByteArray && data.toByteArray().isEmpty())) {
+        if (data.isNull() || (data.userType() == QMetaType::QByteArray && data.toByteArray().isEmpty())) {
             // try to find an image
             QStringList imageFormats = imageReadMimeFormats();
             for (int i = 0; i < imageFormats.size(); ++i) {
                 data = retrieveData_sys(imageFormats.at(i), type);
-                if (data.isNull() || (data.type() == QVariant::ByteArray && data.toByteArray().isEmpty()))
+                if (data.isNull() || (data.userType() == QMetaType::QByteArray && data.toByteArray().isEmpty()))
                     continue;
                 break;
             }
         }
+        int typeId = type;
         // we wanted some image type, but all we got was a byte array. Convert it to an image.
-        if (data.type() == QVariant::ByteArray
-            && (type == QVariant::Image || type == QVariant::Pixmap || type == QVariant::Bitmap))
+        if (data.userType() == QMetaType::QByteArray
+            && (typeId == QMetaType::QImage || typeId == QMetaType::QPixmap || typeId == QMetaType::QBitmap))
             data = QImage::fromData(data.toByteArray());
 
-    } else if (mimeType == QLatin1String("application/x-color") && data.type() == QVariant::ByteArray) {
+    } else if (mimeType == QLatin1String("application/x-color") && data.userType() == QMetaType::QByteArray) {
         QColor c;
         QByteArray ba = data.toByteArray();
         if (ba.size() == 8) {
@@ -140,7 +141,7 @@ QVariant QInternalMimeData::retrieveData(const QString &mimeType, QVariant::Type
         } else {
             qWarning("Qt: Invalid color format");
         }
-    } else if (data.type() != type && data.type() == QVariant::ByteArray) {
+    } else if (data.userType() != int(type) && data.userType() == QMetaType::QByteArray) {
         // try to use mime data's internal conversion stuf.
         QInternalMimeData *that = const_cast<QInternalMimeData *>(this);
         that->setData(mimeType, data.toByteArray());
diff --git a/src/gui/kernel/qkeysequence.cpp b/src/gui/kernel/qkeysequence.cpp
index e1244e1006a..3a3dd42cae3 100644
--- a/src/gui/kernel/qkeysequence.cpp
+++ b/src/gui/kernel/qkeysequence.cpp
@@ -1404,7 +1404,7 @@ QKeySequence::SequenceMatch QKeySequence::matches(const QKeySequence &seq) const
 */
 QKeySequence::operator QVariant() const
 {
-    return QVariant(QVariant::KeySequence, this);
+    return QVariant(QMetaType::QKeySequence, this);
 }
 
 /*! \fn QKeySequence::operator int () const
diff --git a/src/gui/kernel/qpalette.cpp b/src/gui/kernel/qpalette.cpp
index fc063bc72c5..397c50f3dc9 100644
--- a/src/gui/kernel/qpalette.cpp
+++ b/src/gui/kernel/qpalette.cpp
@@ -714,7 +714,7 @@ QPalette &QPalette::operator=(const QPalette &p)
 */
 QPalette::operator QVariant() const
 {
-    return QVariant(QVariant::Palette, this);
+    return QVariant(QMetaType::QPalette, this);
 }
 
 /*!
diff --git a/src/gui/math3d/qmatrix4x4.cpp b/src/gui/math3d/qmatrix4x4.cpp
index ad4cdfdbf4a..6666eb037f3 100644
--- a/src/gui/math3d/qmatrix4x4.cpp
+++ b/src/gui/math3d/qmatrix4x4.cpp
@@ -2007,7 +2007,7 @@ void QMatrix4x4::optimize()
 */
 QMatrix4x4::operator QVariant() const
 {
-    return QVariant(QVariant::Matrix4x4, this);
+    return QVariant(QMetaType::QMatrix4x4, this);
 }
 
 #ifndef QT_NO_DEBUG_STREAM
diff --git a/src/gui/math3d/qquaternion.cpp b/src/gui/math3d/qquaternion.cpp
index 899ec12eb34..5f15949c5b8 100644
--- a/src/gui/math3d/qquaternion.cpp
+++ b/src/gui/math3d/qquaternion.cpp
@@ -983,7 +983,7 @@ QQuaternion QQuaternion::nlerp
 */
 QQuaternion::operator QVariant() const
 {
-    return QVariant(QVariant::Quaternion, this);
+    return QVariant(QMetaType::QQuaternion, this);
 }
 
 #ifndef QT_NO_DEBUG_STREAM
diff --git a/src/gui/math3d/qvector2d.cpp b/src/gui/math3d/qvector2d.cpp
index c04f8b1cbfe..5f651cf3761 100644
--- a/src/gui/math3d/qvector2d.cpp
+++ b/src/gui/math3d/qvector2d.cpp
@@ -531,7 +531,7 @@ QVector4D QVector2D::toVector4D() const
 */
 QVector2D::operator QVariant() const
 {
-    return QVariant(QVariant::Vector2D, this);
+    return QVariant(QMetaType::QVector2D, this);
 }
 
 #ifndef QT_NO_DEBUG_STREAM
diff --git a/src/gui/math3d/qvector3d.cpp b/src/gui/math3d/qvector3d.cpp
index 4f72c1da660..08c3de99d2a 100644
--- a/src/gui/math3d/qvector3d.cpp
+++ b/src/gui/math3d/qvector3d.cpp
@@ -706,7 +706,7 @@ QVector4D QVector3D::toVector4D() const
 */
 QVector3D::operator QVariant() const
 {
-    return QVariant(QVariant::Vector3D, this);
+    return QVariant(QMetaType::QVector3D, this);
 }
 
 /*!
diff --git a/src/gui/math3d/qvector4d.cpp b/src/gui/math3d/qvector4d.cpp
index 3a68bd6cb78..070ea7454ea 100644
--- a/src/gui/math3d/qvector4d.cpp
+++ b/src/gui/math3d/qvector4d.cpp
@@ -608,7 +608,7 @@ QVector3D QVector4D::toVector3DAffine() const
 */
 QVector4D::operator QVariant() const
 {
-    return QVariant(QVariant::Vector4D, this);
+    return QVariant(QMetaType::QVector4D, this);
 }
 
 #ifndef QT_NO_DEBUG_STREAM
diff --git a/src/gui/painting/qbrush.cpp b/src/gui/painting/qbrush.cpp
index 83032bdc4fe..e84916e063a 100644
--- a/src/gui/painting/qbrush.cpp
+++ b/src/gui/painting/qbrush.cpp
@@ -672,7 +672,7 @@ QBrush &QBrush::operator=(const QBrush &b)
 */
 QBrush::operator QVariant() const
 {
-    return QVariant(QVariant::Brush, this);
+    return QVariant(QMetaType::QBrush, this);
 }
 
 /*!
diff --git a/src/gui/painting/qcolor.cpp b/src/gui/painting/qcolor.cpp
index 8780cce2230..917706e8cf4 100644
--- a/src/gui/painting/qcolor.cpp
+++ b/src/gui/painting/qcolor.cpp
@@ -2980,7 +2980,7 @@ bool QColor::operator!=(const QColor &color) const noexcept
 */
 QColor::operator QVariant() const
 {
-    return QVariant(QVariant::Color, this);
+    return QVariant(QMetaType::QColor, this);
 }
 
 /*! \internal
diff --git a/src/gui/painting/qmatrix.cpp b/src/gui/painting/qmatrix.cpp
index b1f01332b6d..890b0079de0 100644
--- a/src/gui/painting/qmatrix.cpp
+++ b/src/gui/painting/qmatrix.cpp
@@ -1087,7 +1087,7 @@ QMatrix &QMatrix::operator=(const QMatrix &matrix) noexcept
 */
 QMatrix::operator QVariant() const
 {
-    return QVariant(QVariant::Matrix, this);
+    return QVariant(QMetaType::QMatrix, this);
 }
 
 Q_GUI_EXPORT QPainterPath operator *(const QPainterPath &p, const QMatrix &m)
diff --git a/src/gui/painting/qpen.cpp b/src/gui/painting/qpen.cpp
index 1a940443d19..01e581d2ed9 100644
--- a/src/gui/painting/qpen.cpp
+++ b/src/gui/painting/qpen.cpp
@@ -408,7 +408,7 @@ QPen &QPen::operator=(const QPen &p) noexcept
 */
 QPen::operator QVariant() const
 {
-    return QVariant(QVariant::Pen, this);
+    return QVariant(QMetaType::QPen, this);
 }
 
 /*!
diff --git a/src/gui/painting/qpolygon.cpp b/src/gui/painting/qpolygon.cpp
index 3bf6004fcce..20337477b73 100644
--- a/src/gui/painting/qpolygon.cpp
+++ b/src/gui/painting/qpolygon.cpp
@@ -716,7 +716,7 @@ QPolygon QPolygonF::toPolygon() const
 */
 QPolygon::operator QVariant() const
 {
-    return QVariant(QVariant::Polygon, this);
+    return QVariant(QMetaType::QPolygon, this);
 }
 
 /*****************************************************************************
diff --git a/src/gui/painting/qregion.cpp b/src/gui/painting/qregion.cpp
index 783b02fb931..44ee038194b 100644
--- a/src/gui/painting/qregion.cpp
+++ b/src/gui/painting/qregion.cpp
@@ -599,7 +599,7 @@ QRegion& QRegion::operator^=(const QRegion &r)
 */
 QRegion::operator QVariant() const
 {
-    return QVariant(QVariant::Region, this);
+    return QVariant(QMetaType::QRegion, this);
 }
 
 /*!
diff --git a/src/gui/painting/qtransform.cpp b/src/gui/painting/qtransform.cpp
index d75b66c50b5..279a817ff1e 100644
--- a/src/gui/painting/qtransform.cpp
+++ b/src/gui/painting/qtransform.cpp
@@ -2155,7 +2155,7 @@ QTransform::TransformationType QTransform::type() const
 */
 QTransform::operator QVariant() const
 {
-    return QVariant(QVariant::Transform, this);
+    return QVariant(QMetaType::QTransform, this);
 }
 
 
diff --git a/src/gui/text/qcssparser.cpp b/src/gui/text/qcssparser.cpp
index c0b0071e4df..a12eb985282 100644
--- a/src/gui/text/qcssparser.cpp
+++ b/src/gui/text/qcssparser.cpp
@@ -707,7 +707,7 @@ static Qt::Alignment parseAlignment(const QCss::Value *values, int count)
 static ColorData parseColorValue(QCss::Value v)
 {
     if (v.type == Value::Identifier || v.type == Value::String) {
-        v.variant.convert(QVariant::Color);
+        v.variant.convert(QMetaType::QColor);
         v.type = Value::Color;
     }
 
@@ -1143,7 +1143,7 @@ static bool setFontSizeFromValue(QCss::Value value, QFont *font, int *fontSizeAd
     } else if (s.endsWith(QLatin1String("px"), Qt::CaseInsensitive)) {
         s.chop(2);
         value.variant = s;
-        if (value.variant.convert(QVariant::Int)) {
+        if (value.variant.convert(QMetaType::Int)) {
             font->setPixelSize(value.variant.toInt());
             valid = true;
         }
@@ -1420,9 +1420,9 @@ QColor Declaration::colorValue(const QPalette &pal) const
         return QColor();
 
     if (d->parsed.isValid()) {
-        if (d->parsed.type() == QVariant::Color)
+        if (d->parsed.userType() == QMetaType::QColor)
             return qvariant_cast<QColor>(d->parsed);
-        if (d->parsed.type() == QVariant::Int)
+        if (d->parsed.userType() == QMetaType::Int)
             return pal.color((QPalette::ColorRole)(d->parsed.toInt()));
     }
 
@@ -1442,9 +1442,9 @@ QBrush Declaration::brushValue(const QPalette &pal) const
         return QBrush();
 
     if (d->parsed.isValid()) {
-        if (d->parsed.type() == QVariant::Brush)
+        if (d->parsed.userType() == QMetaType::QBrush)
             return qvariant_cast<QBrush>(d->parsed);
-        if (d->parsed.type() == QVariant::Int)
+        if (d->parsed.userType() == QMetaType::Int)
             return pal.color((QPalette::ColorRole)(d->parsed.toInt()));
     }
 
@@ -1469,9 +1469,9 @@ void Declaration::brushValues(QBrush *c, const QPalette &pal) const
         needParse = 0;
         QList<QVariant> v = d->parsed.toList();
         for (i = 0; i < qMin(v.count(), 4); i++) {
-            if (v.at(i).type() == QVariant::Brush) {
+            if (v.at(i).userType() == QMetaType::QBrush) {
                 c[i] = qvariant_cast<QBrush>(v.at(i));
-            } else if (v.at(i).type() == QVariant::Int) {
+            } else if (v.at(i).userType() == QMetaType::Int) {
                 c[i] = pal.color((QPalette::ColorRole)(v.at(i).toInt()));
             } else {
                 needParse |= (1<<i);
@@ -1598,7 +1598,7 @@ void Declaration::colorValues(QColor *c, const QPalette &pal) const
     if (d->parsed.isValid()) {
         QList<QVariant> v = d->parsed.toList();
         for (i = 0; i < qMin(d->values.count(), 4); i++) {
-            if (v.at(i).type() == QVariant::Color) {
+            if (v.at(i).userType() == QMetaType::QColor) {
                 c[i] = qvariant_cast<QColor>(v.at(i));
             } else {
                 c[i] = pal.color((QPalette::ColorRole)(v.at(i).toInt()));
@@ -2723,7 +2723,7 @@ bool Parser::parseTerm(Value *value)
     switch (lookup()) {
         case NUMBER:
             value->type = Value::Number;
-            value->variant.convert(QVariant::Double);
+            value->variant.convert(QMetaType::Double);
             break;
         case PERCENTAGE:
             value->type = Value::Percentage;
diff --git a/src/gui/text/qfont.cpp b/src/gui/text/qfont.cpp
index 2e7d898a70f..8f0d7d9d382 100644
--- a/src/gui/text/qfont.cpp
+++ b/src/gui/text/qfont.cpp
@@ -1753,7 +1753,7 @@ bool QFont::operator!=(const QFont &f) const
 */
 QFont::operator QVariant() const
 {
-    return QVariant(QVariant::Font, this);
+    return QVariant(QMetaType::QFont, this);
 }
 
 /*!
diff --git a/src/gui/text/qplatformfontdatabase.cpp b/src/gui/text/qplatformfontdatabase.cpp
index 02e25bb6afc..48ba8987f3d 100644
--- a/src/gui/text/qplatformfontdatabase.cpp
+++ b/src/gui/text/qplatformfontdatabase.cpp
@@ -82,7 +82,7 @@ void QPlatformFontDatabase::registerQPF2Font(const QByteArray &dataArray, void *
 
         if (!fontName.isEmpty() && pixelSize) {
             QFont::Weight fontWeight = QFont::Normal;
-            if (weight.type() == QVariant::Int || weight.type() == QVariant::UInt)
+            if (weight.userType() == QMetaType::Int || weight.userType() == QMetaType::UInt)
                 fontWeight = QFont::Weight(weight.toInt());
 
             QFont::Style fontStyle = static_cast<QFont::Style>(style.toInt());
diff --git a/src/gui/text/qtextdocument.cpp b/src/gui/text/qtextdocument.cpp
index 2d7f2bb844a..46cfc79643c 100644
--- a/src/gui/text/qtextdocument.cpp
+++ b/src/gui/text/qtextdocument.cpp
@@ -2234,7 +2234,7 @@ QVariant QTextDocument::loadResource(int type, const QUrl &name)
     }
 
     if (!r.isNull()) {
-        if (type == ImageResource && r.type() == QVariant::ByteArray) {
+        if (type == ImageResource && r.userType() == QMetaType::QByteArray) {
             if (qApp->thread() != QThread::currentThread()) {
                 // must use images in non-GUI threads
                 QImage image;
@@ -3049,12 +3049,12 @@ QString QTextHtmlExporter::findUrlForImage(const QTextDocument *doc, qint64 cach
         for (; it != priv->cachedResources.constEnd(); ++it) {
 
             const QVariant &v = it.value();
-            if (v.type() == QVariant::Image && !isPixmap) {
+            if (v.userType() == QMetaType::QImage && !isPixmap) {
                 if (qvariant_cast<QImage>(v).cacheKey() == cacheKey)
                     break;
             }
 
-            if (v.type() == QVariant::Pixmap && isPixmap) {
+            if (v.userType() == QMetaType::QPixmap && isPixmap) {
                 if (qvariant_cast<QPixmap>(v).cacheKey() == cacheKey)
                     break;
             }
diff --git a/src/gui/text/qtextdocumentlayout.cpp b/src/gui/text/qtextdocumentlayout.cpp
index e21a8d8d527..9d708735903 100644
--- a/src/gui/text/qtextdocumentlayout.cpp
+++ b/src/gui/text/qtextdocumentlayout.cpp
@@ -248,7 +248,7 @@ public:
         if (v.isNull()) {
             return cellPadding;
         } else {
-            Q_ASSERT(v.userType() == QVariant::Double || v.userType() == QMetaType::Float);
+            Q_ASSERT(v.userType() == QMetaType::Double || v.userType() == QMetaType::Float);
             return QFixed::fromReal(v.toReal() * deviceScale);
         }
     }
diff --git a/src/gui/text/qtextformat.cpp b/src/gui/text/qtextformat.cpp
index e3bd49a15ef..10b8ade1178 100644
--- a/src/gui/text/qtextformat.cpp
+++ b/src/gui/text/qtextformat.cpp
@@ -144,7 +144,7 @@ QT_BEGIN_NAMESPACE
 */
 QTextLength::operator QVariant() const
 {
-    return QVariant(QVariant::TextLength, this);
+    return QVariant(QMetaType::QTextLength, this);
 }
 
 #ifndef QT_NO_DATASTREAM
@@ -288,20 +288,20 @@ static inline uint variantHash(const QVariant &variant)
 {
     // simple and fast hash functions to differentiate between type and value
     switch (variant.userType()) { // sorted by occurrence frequency
-    case QVariant::String: return qHash(variant.toString());
-    case QVariant::Double: return qHash(variant.toDouble());
-    case QVariant::Int: return 0x811890 + variant.toInt();
-    case QVariant::Brush:
+    case QMetaType::QString: return qHash(variant.toString());
+    case QMetaType::Double: return qHash(variant.toDouble());
+    case QMetaType::Int: return 0x811890 + variant.toInt();
+    case QMetaType::QBrush:
         return 0x01010101 + hash(qvariant_cast<QBrush>(variant));
-    case QVariant::Bool: return 0x371818 + variant.toBool();
-    case QVariant::Pen: return 0x02020202 + hash(qvariant_cast<QPen>(variant));
-    case QVariant::List:
+    case QMetaType::Bool: return 0x371818 + variant.toBool();
+    case QMetaType::QPen: return 0x02020202 + hash(qvariant_cast<QPen>(variant));
+    case QMetaType::QVariantList:
         return 0x8377 + qvariant_cast<QVariantList>(variant).count();
-    case QVariant::Color: return hash(qvariant_cast<QColor>(variant));
-      case QVariant::TextLength:
+    case QMetaType::QColor: return hash(qvariant_cast<QColor>(variant));
+      case QMetaType::QTextLength:
         return 0x377 + hash(qvariant_cast<QTextLength>(variant).rawValue());
     case QMetaType::Float: return qHash(variant.toFloat());
-    case QVariant::Invalid: return 0;
+    case QMetaType::UnknownType: return 0;
     default: break;
     }
     return qHash(variant.typeName());
@@ -874,7 +874,7 @@ QTextFormat::~QTextFormat()
 */
 QTextFormat::operator QVariant() const
 {
-    return QVariant(QVariant::TextFormat, this);
+    return QVariant(QMetaType::QTextFormat, this);
 }
 
 /*!
@@ -984,7 +984,7 @@ bool QTextFormat::boolProperty(int propertyId) const
     if (!d)
         return false;
     const QVariant prop = d->property(propertyId);
-    if (prop.userType() != QVariant::Bool)
+    if (prop.userType() != QMetaType::Bool)
         return false;
     return prop.toBool();
 }
@@ -1004,7 +1004,7 @@ int QTextFormat::intProperty(int propertyId) const
     if (!d)
         return def;
     const QVariant prop = d->property(propertyId);
-    if (prop.userType() != QVariant::Int)
+    if (prop.userType() != QMetaType::Int)
         return def;
     return prop.toInt();
 }
@@ -1022,7 +1022,7 @@ qreal QTextFormat::doubleProperty(int propertyId) const
     if (!d)
         return 0.;
     const QVariant prop = d->property(propertyId);
-    if (prop.userType() != QVariant::Double && prop.userType() != QMetaType::Float)
+    if (prop.userType() != QMetaType::Double && prop.userType() != QMetaType::Float)
         return 0.;
     return qvariant_cast<qreal>(prop);
 }
@@ -1040,7 +1040,7 @@ QString QTextFormat::stringProperty(int propertyId) const
     if (!d)
         return QString();
     const QVariant prop = d->property(propertyId);
-    if (prop.userType() != QVariant::String)
+    if (prop.userType() != QMetaType::QString)
         return QString();
     return prop.toString();
 }
@@ -1058,7 +1058,7 @@ QColor QTextFormat::colorProperty(int propertyId) const
     if (!d)
         return QColor();
     const QVariant prop = d->property(propertyId);
-    if (prop.userType() != QVariant::Color)
+    if (prop.userType() != QMetaType::QColor)
         return QColor();
     return qvariant_cast<QColor>(prop);
 }
@@ -1076,7 +1076,7 @@ QPen QTextFormat::penProperty(int propertyId) const
     if (!d)
         return QPen(Qt::NoPen);
     const QVariant prop = d->property(propertyId);
-    if (prop.userType() != QVariant::Pen)
+    if (prop.userType() != QMetaType::QPen)
         return QPen(Qt::NoPen);
     return qvariant_cast<QPen>(prop);
 }
@@ -1094,7 +1094,7 @@ QBrush QTextFormat::brushProperty(int propertyId) const
     if (!d)
         return QBrush(Qt::NoBrush);
     const QVariant prop = d->property(propertyId);
-    if (prop.userType() != QVariant::Brush)
+    if (prop.userType() != QMetaType::QBrush)
         return QBrush(Qt::NoBrush);
     return qvariant_cast<QBrush>(prop);
 }
@@ -1126,13 +1126,13 @@ QVector<QTextLength> QTextFormat::lengthVectorProperty(int propertyId) const
     if (!d)
         return vector;
     const QVariant prop = d->property(propertyId);
-    if (prop.userType() != QVariant::List)
+    if (prop.userType() != QMetaType::QVariantList)
         return vector;
 
     QList<QVariant> propertyList = prop.toList();
     for (int i=0; i<propertyList.size(); ++i) {
         QVariant var = propertyList.at(i);
-        if (var.userType() == QVariant::TextLength)
+        if (var.userType() == QMetaType::QTextLength)
             vector.append(qvariant_cast<QTextLength>(var));
     }
 
@@ -1222,7 +1222,7 @@ int QTextFormat::objectIndex() const
     if (!d)
         return -1;
     const QVariant prop = d->property(ObjectIndex);
-    if (prop.userType() != QVariant::Int) // ####
+    if (prop.userType() != QMetaType::Int) // ####
         return -1;
     return prop.toInt();
 }
@@ -1859,9 +1859,9 @@ void QTextCharFormat::setUnderlineStyle(UnderlineStyle style)
 QString QTextCharFormat::anchorName() const
 {
     QVariant prop = property(AnchorName);
-    if (prop.userType() == QVariant::StringList)
+    if (prop.userType() == QMetaType::QStringList)
         return prop.toStringList().value(0);
-    else if (prop.userType() != QVariant::String)
+    else if (prop.userType() != QMetaType::QString)
         return QString();
     return prop.toString();
 }
@@ -1878,9 +1878,9 @@ QString QTextCharFormat::anchorName() const
 QStringList QTextCharFormat::anchorNames() const
 {
     QVariant prop = property(AnchorName);
-    if (prop.userType() == QVariant::StringList)
+    if (prop.userType() == QMetaType::QStringList)
         return prop.toStringList();
-    else if (prop.userType() != QVariant::String)
+    else if (prop.userType() != QMetaType::QString)
         return QStringList();
     return QStringList(prop.toString());
 }
diff --git a/src/gui/text/qtexthtmlparser.cpp b/src/gui/text/qtexthtmlparser.cpp
index 3b9f2d253e5..f0035443913 100644
--- a/src/gui/text/qtexthtmlparser.cpp
+++ b/src/gui/text/qtexthtmlparser.cpp
@@ -1451,19 +1451,19 @@ void QTextHtmlParserNode::applyBackgroundImage(const QString &url, const QTextDo
 
         if (QCoreApplication::instance()->thread() != QThread::currentThread()) {
             // must use images in non-GUI threads
-            if (val.type() == QVariant::Image) {
+            if (val.userType() == QMetaType::QImage) {
                 QImage image = qvariant_cast<QImage>(val);
                 charFormat.setBackground(image);
-            } else if (val.type() == QVariant::ByteArray) {
+            } else if (val.userType() == QMetaType::QByteArray) {
                 QImage image;
                 if (image.loadFromData(val.toByteArray())) {
                     charFormat.setBackground(image);
                 }
             }
         } else {
-            if (val.type() == QVariant::Image || val.type() == QVariant::Pixmap) {
+            if (val.userType() == QMetaType::QImage || val.userType() == QMetaType::QPixmap) {
                 charFormat.setBackground(qvariant_cast<QPixmap>(val));
-            } else if (val.type() == QVariant::ByteArray) {
+            } else if (val.userType() == QMetaType::QByteArray) {
                 QPixmap pm;
                 if (pm.loadFromData(val.toByteArray())) {
                     charFormat.setBackground(pm);
@@ -1907,9 +1907,9 @@ void QTextHtmlParser::importStyleSheet(const QString &href)
 
     QVariant res = resourceProvider->resource(QTextDocument::StyleSheetResource, href);
     QString css;
-    if (res.type() == QVariant::String) {
+    if (res.userType() == QMetaType::QString) {
         css = res.toString();
-    } else if (res.type() == QVariant::ByteArray) {
+    } else if (res.userType() == QMetaType::QByteArray) {
         // #### detect @charset
         css = QString::fromUtf8(res.toByteArray());
     }
diff --git a/src/gui/text/qtextimagehandler.cpp b/src/gui/text/qtextimagehandler.cpp
index 14018f34da7..0d87a2135d9 100644
--- a/src/gui/text/qtextimagehandler.cpp
+++ b/src/gui/text/qtextimagehandler.cpp
@@ -88,9 +88,9 @@ static QPixmap getPixmap(QTextDocument *doc, const QTextImageFormat &format, con
     qreal sourcePixelRatio = 1.0;
     name = resolveFileName(name, &url, devicePixelRatio, &sourcePixelRatio);
     const QVariant data = doc->resource(QTextDocument::ImageResource, url);
-    if (data.type() == QVariant::Pixmap || data.type() == QVariant::Image) {
+    if (data.userType() == QMetaType::QPixmap || data.userType() == QMetaType::QImage) {
         pm = qvariant_cast<QPixmap>(data);
-    } else if (data.type() == QVariant::ByteArray) {
+    } else if (data.userType() == QMetaType::QByteArray) {
         pm.loadFromData(data.toByteArray());
     }
 
@@ -170,9 +170,9 @@ static QImage getImage(QTextDocument *doc, const QTextImageFormat &format, const
     qreal sourcePixelRatio = 1.0;
     name = resolveFileName(name, &url, devicePixelRatio, &sourcePixelRatio);
     const QVariant data = doc->resource(QTextDocument::ImageResource, url);
-    if (data.type() == QVariant::Image) {
+    if (data.userType() == QMetaType::QImage) {
         image = qvariant_cast<QImage>(data);
-    } else if (data.type() == QVariant::ByteArray) {
+    } else if (data.userType() == QMetaType::QByteArray) {
         image.loadFromData(data.toByteArray());
     }
 
diff --git a/src/gui/text/qtextodfwriter.cpp b/src/gui/text/qtextodfwriter.cpp
index 408e3ec167e..155ec43c50a 100644
--- a/src/gui/text/qtextodfwriter.cpp
+++ b/src/gui/text/qtextodfwriter.cpp
@@ -455,9 +455,9 @@ void QTextOdfWriter::writeInlineCharacter(QXmlStreamWriter &writer, const QTextF
             name.prepend(QLatin1String("qrc"));
         QUrl url = QUrl(name);
         const QVariant variant = m_document->resource(QTextDocument::ImageResource, url);
-        if (variant.type() == QVariant::Image) {
+        if (variant.userType() == QMetaType::QImage) {
             image = qvariant_cast<QImage>(variant);
-        } else if (variant.type() == QVariant::ByteArray) {
+        } else if (variant.userType() == QMetaType::QByteArray) {
             data = variant.toByteArray();
 
             QBuffer buffer(&data);
diff --git a/src/platformsupport/accessibility/qaccessiblebridgeutils.cpp b/src/platformsupport/accessibility/qaccessiblebridgeutils.cpp
index f280e65c297..a15b93e31ee 100644
--- a/src/platformsupport/accessibility/qaccessiblebridgeutils.cpp
+++ b/src/platformsupport/accessibility/qaccessiblebridgeutils.cpp
@@ -93,7 +93,7 @@ bool performEffectiveAction(QAccessibleInterface *iface, const QString &actionNa
         if (!success)
             return false;
         stepSize = (max - min) / 10;  // this is pretty arbitrary, we just need to provide something
-        const int typ = currentVariant.type();
+        const int typ = currentVariant.userType();
         if (typ != QMetaType::Float && typ != QMetaType::Double) {
             // currentValue is an integer. Round it up to ensure stepping in case it was below 1
             stepSize = qCeil(stepSize);
diff --git a/src/platformsupport/linuxaccessibility/atspiadaptor.cpp b/src/platformsupport/linuxaccessibility/atspiadaptor.cpp
index 0f34e1a4ca0..012edc82e44 100644
--- a/src/platformsupport/linuxaccessibility/atspiadaptor.cpp
+++ b/src/platformsupport/linuxaccessibility/atspiadaptor.cpp
@@ -2250,7 +2250,7 @@ bool AtSpiAdaptor::valueInterface(QAccessibleInterface *interface, const QString
             qCDebug(lcAccessibilityAtspi) << "WARNING: AtSpiAdaptor::valueInterface does not implement " << function << message.path();
             return false;
         }
-        if (!value.canConvert(QVariant::Double)) {
+        if (!value.canConvert(QMetaType::Double)) {
             qCDebug(lcAccessibilityAtspi) << "AtSpiAdaptor::valueInterface: Could not convert to double: " << function;
         }
 
diff --git a/src/platformsupport/themes/genericunix/qgenericunixthemes.cpp b/src/platformsupport/themes/genericunix/qgenericunixthemes.cpp
index 70d56160750..36d9e4e0659 100644
--- a/src/platformsupport/themes/genericunix/qgenericunixthemes.cpp
+++ b/src/platformsupport/themes/genericunix/qgenericunixthemes.cpp
@@ -517,7 +517,7 @@ QFont *QKdeThemePrivate::kdeFont(const QVariant &fontValue)
         // causing recursion.
         QString fontDescription;
         QString fontFamily;
-        if (fontValue.type() == QVariant::StringList) {
+        if (fontValue.userType() == QMetaType::QStringList) {
             const QStringList list = fontValue.toStringList();
             if (!list.isEmpty()) {
                 fontFamily = list.first();
diff --git a/src/plugins/generic/tuiotouch/qtuiohandler.cpp b/src/plugins/generic/tuiotouch/qtuiohandler.cpp
index cb82672acd3..6ad4597b19e 100644
--- a/src/plugins/generic/tuiotouch/qtuiohandler.cpp
+++ b/src/plugins/generic/tuiotouch/qtuiohandler.cpp
@@ -226,7 +226,7 @@ void QTuioHandler::process2DCurSource(const QOscMessage &message)
         return;
     }
 
-    if (QMetaType::Type(arguments.at(1).type()) != QMetaType::QByteArray) {
+    if (QMetaType::Type(arguments.at(1).userType()) != QMetaType::QByteArray) {
         qCWarning(lcTuioSource, "Ignoring malformed TUIO source message (bad argument type)");
         return;
     }
@@ -248,7 +248,7 @@ void QTuioHandler::process2DCurAlive(const QOscMessage &message)
     QMap<int, QTuioCursor> newActiveCursors;
 
     for (int i = 1; i < arguments.count(); ++i) {
-        if (QMetaType::Type(arguments.at(i).type()) != QMetaType::Int) {
+        if (QMetaType::Type(arguments.at(i).userType()) != QMetaType::Int) {
             qCWarning(lcTuioHandler) << "Ignoring malformed TUIO alive message (bad argument on position" << i << arguments << ')';
             return;
         }
@@ -293,12 +293,12 @@ void QTuioHandler::process2DCurSet(const QOscMessage &message)
         return;
     }
 
-    if (QMetaType::Type(arguments.at(1).type()) != QMetaType::Int   ||
-        QMetaType::Type(arguments.at(2).type()) != QMetaType::Float ||
-        QMetaType::Type(arguments.at(3).type()) != QMetaType::Float ||
-        QMetaType::Type(arguments.at(4).type()) != QMetaType::Float ||
-        QMetaType::Type(arguments.at(5).type()) != QMetaType::Float ||
-        QMetaType::Type(arguments.at(6).type()) != QMetaType::Float
+    if (QMetaType::Type(arguments.at(1).userType()) != QMetaType::Int   ||
+        QMetaType::Type(arguments.at(2).userType()) != QMetaType::Float ||
+        QMetaType::Type(arguments.at(3).userType()) != QMetaType::Float ||
+        QMetaType::Type(arguments.at(4).userType()) != QMetaType::Float ||
+        QMetaType::Type(arguments.at(5).userType()) != QMetaType::Float ||
+        QMetaType::Type(arguments.at(6).userType()) != QMetaType::Float
        ) {
         qCWarning(lcTuioSet) << "Ignoring malformed TUIO set message with bad types: " << arguments;
         return;
@@ -391,7 +391,7 @@ void QTuioHandler::process2DObjSource(const QOscMessage &message)
         return;
     }
 
-    if (QMetaType::Type(arguments.at(1).type()) != QMetaType::QByteArray) {
+    if (QMetaType::Type(arguments.at(1).userType()) != QMetaType::QByteArray) {
         qCWarning(lcTuioSource, "Ignoring malformed TUIO source message (bad argument type)");
         return;
     }
@@ -413,7 +413,7 @@ void QTuioHandler::process2DObjAlive(const QOscMessage &message)
     QMap<int, QTuioToken> newActiveTokens;
 
     for (int i = 1; i < arguments.count(); ++i) {
-        if (QMetaType::Type(arguments.at(i).type()) != QMetaType::Int) {
+        if (QMetaType::Type(arguments.at(i).userType()) != QMetaType::Int) {
             qCWarning(lcTuioHandler) << "Ignoring malformed TUIO alive message (bad argument on position" << i << arguments << ')';
             return;
         }
@@ -458,16 +458,16 @@ void QTuioHandler::process2DObjSet(const QOscMessage &message)
         return;
     }
 
-    if (QMetaType::Type(arguments.at(1).type()) != QMetaType::Int ||
-            QMetaType::Type(arguments.at(2).type()) != QMetaType::Int ||
-            QMetaType::Type(arguments.at(3).type()) != QMetaType::Float ||
-            QMetaType::Type(arguments.at(4).type()) != QMetaType::Float ||
-            QMetaType::Type(arguments.at(5).type()) != QMetaType::Float ||
-            QMetaType::Type(arguments.at(6).type()) != QMetaType::Float ||
-            QMetaType::Type(arguments.at(7).type()) != QMetaType::Float ||
-            QMetaType::Type(arguments.at(8).type()) != QMetaType::Float ||
-            QMetaType::Type(arguments.at(9).type()) != QMetaType::Float ||
-            QMetaType::Type(arguments.at(10).type()) != QMetaType::Float) {
+    if (QMetaType::Type(arguments.at(1).userType()) != QMetaType::Int ||
+            QMetaType::Type(arguments.at(2).userType()) != QMetaType::Int ||
+            QMetaType::Type(arguments.at(3).userType()) != QMetaType::Float ||
+            QMetaType::Type(arguments.at(4).userType()) != QMetaType::Float ||
+            QMetaType::Type(arguments.at(5).userType()) != QMetaType::Float ||
+            QMetaType::Type(arguments.at(6).userType()) != QMetaType::Float ||
+            QMetaType::Type(arguments.at(7).userType()) != QMetaType::Float ||
+            QMetaType::Type(arguments.at(8).userType()) != QMetaType::Float ||
+            QMetaType::Type(arguments.at(9).userType()) != QMetaType::Float ||
+            QMetaType::Type(arguments.at(10).userType()) != QMetaType::Float) {
         qCWarning(lcTuioSet) << "Ignoring malformed TUIO set message with bad types: " << arguments;
         return;
     }
diff --git a/src/plugins/platforms/xcb/qxcbclipboard.cpp b/src/plugins/platforms/xcb/qxcbclipboard.cpp
index c2d9d060fb4..fe9ddfece7d 100644
--- a/src/plugins/platforms/xcb/qxcbclipboard.cpp
+++ b/src/plugins/platforms/xcb/qxcbclipboard.cpp
@@ -123,8 +123,9 @@ protected:
         return list.contains(format);
     }
 
-    QVariant retrieveData_sys(const QString &fmt, QVariant::Type requestedType) const override
+    QVariant retrieveData_sys(const QString &fmt, QVariant::Type type) const override
     {
+        auto requestedType = QMetaType::Type(type);
         if (fmt.isEmpty() || isEmpty())
             return QByteArray();
 
diff --git a/src/plugins/platforms/xcb/qxcbdrag.cpp b/src/plugins/platforms/xcb/qxcbdrag.cpp
index 47d58fa8807..e76fc8bd401 100644
--- a/src/plugins/platforms/xcb/qxcbdrag.cpp
+++ b/src/plugins/platforms/xcb/qxcbdrag.cpp
@@ -114,7 +114,7 @@ protected:
     QStringList formats_sys() const override;
     QVariant retrieveData_sys(const QString &mimeType, QVariant::Type type) const override;
 
-    QVariant xdndObtainData(const QByteArray &format, QVariant::Type requestedType) const;
+    QVariant xdndObtainData(const QByteArray &format, QMetaType::Type requestedType) const;
 
     QXcbDrag *drag;
 };
@@ -1248,11 +1248,11 @@ QXcbDropData::~QXcbDropData()
 QVariant QXcbDropData::retrieveData_sys(const QString &mimetype, QVariant::Type requestedType) const
 {
     QByteArray mime = mimetype.toLatin1();
-    QVariant data = xdndObtainData(mime, requestedType);
+    QVariant data = xdndObtainData(mime, QMetaType::Type(requestedType));
     return data;
 }
 
-QVariant QXcbDropData::xdndObtainData(const QByteArray &format, QVariant::Type requestedType) const
+QVariant QXcbDropData::xdndObtainData(const QByteArray &format, QMetaType::Type requestedType) const
 {
     QByteArray result;
 
diff --git a/src/plugins/platforms/xcb/qxcbmime.cpp b/src/plugins/platforms/xcb/qxcbmime.cpp
index d611f86a9ce..0b3219f792d 100644
--- a/src/plugins/platforms/xcb/qxcbmime.cpp
+++ b/src/plugins/platforms/xcb/qxcbmime.cpp
@@ -159,7 +159,7 @@ QVector<xcb_atom_t> QXcbMime::mimeAtomsForFormat(QXcbConnection *connection, con
 }
 
 QVariant QXcbMime::mimeConvertToFormat(QXcbConnection *connection, xcb_atom_t a, const QByteArray &d, const QString &format,
-                                       QVariant::Type requestedType, const QByteArray &encoding)
+                                       QMetaType::Type requestedType, const QByteArray &encoding)
 {
     QByteArray data = d;
     QString atomName = mimeAtomToString(connection, a);
@@ -169,7 +169,7 @@ QVariant QXcbMime::mimeConvertToFormat(QXcbConnection *connection, xcb_atom_t a,
         && atomName == format + QLatin1String(";charset=") + QLatin1String(encoding)) {
 
 #if QT_CONFIG(textcodec)
-        if (requestedType == QVariant::String) {
+        if (requestedType == QMetaType::QString) {
             QTextCodec *codec = QTextCodec::codecForName(encoding);
             if (codec)
                 return codec->toUnicode(data);
@@ -264,7 +264,7 @@ QVariant QXcbMime::mimeConvertToFormat(QXcbConnection *connection, xcb_atom_t a,
     return QVariant();
 }
 
-xcb_atom_t QXcbMime::mimeAtomForFormat(QXcbConnection *connection, const QString &format, QVariant::Type requestedType,
+xcb_atom_t QXcbMime::mimeAtomForFormat(QXcbConnection *connection, const QString &format, QMetaType::Type requestedType,
                                  const QVector<xcb_atom_t> &atoms, QByteArray *requestedEncoding)
 {
     requestedEncoding->clear();
@@ -297,7 +297,7 @@ xcb_atom_t QXcbMime::mimeAtomForFormat(QXcbConnection *connection, const QString
 
     // for string/text requests try to use a format with a well-defined charset
     // first to avoid encoding problems
-    if (requestedType == QVariant::String
+    if (requestedType == QMetaType::QString
         && format.startsWith(QLatin1String("text/"))
         && !format.contains(QLatin1String("charset="))) {
 
diff --git a/src/plugins/platforms/xcb/qxcbmime.h b/src/plugins/platforms/xcb/qxcbmime.h
index f2136ec9f44..dcb4f6b6c6a 100644
--- a/src/plugins/platforms/xcb/qxcbmime.h
+++ b/src/plugins/platforms/xcb/qxcbmime.h
@@ -60,8 +60,8 @@ public:
     static bool mimeDataForAtom(QXcbConnection *connection, xcb_atom_t a, QMimeData *mimeData, QByteArray *data,
                                 xcb_atom_t *atomFormat, int *dataFormat);
     static QVariant mimeConvertToFormat(QXcbConnection *connection, xcb_atom_t a, const QByteArray &data, const QString &format,
-                                        QVariant::Type requestedType, const QByteArray &encoding);
-    static xcb_atom_t mimeAtomForFormat(QXcbConnection *connection, const QString &format, QVariant::Type requestedType,
+                                        QMetaType::Type requestedType, const QByteArray &encoding);
+    static xcb_atom_t mimeAtomForFormat(QXcbConnection *connection, const QString &format, QMetaType::Type requestedType,
                                         const QVector<xcb_atom_t> &atoms, QByteArray *requestedEncoding);
 };
 
diff --git a/src/plugins/sqldrivers/ibase/qsql_ibase.cpp b/src/plugins/sqldrivers/ibase/qsql_ibase.cpp
index d0928fe6ab7..7bacb59994e 100644
--- a/src/plugins/sqldrivers/ibase/qsql_ibase.cpp
+++ b/src/plugins/sqldrivers/ibase/qsql_ibase.cpp
@@ -730,7 +730,7 @@ static char* createArrayBuffer(char *buffer, const QList<QVariant> &list,
     if (curDim != dim) {
         for(i = 0; i < list.size(); ++i) {
 
-          if (list.at(i).type() != QVariant::List) { // dimensions mismatch
+          if (list.at(i).userType() != QVariant::List) { // dimensions mismatch
               error = QLatin1String("Array dimensons mismatch. Fieldname: %1");
               return 0;
           }
@@ -1162,7 +1162,7 @@ bool QIBaseResult::gotoNext(QSqlCachedResult::ValueCache& row, int rowIdx)
             // null value
             QVariant v;
             v.convert(qIBaseTypeName2(d->sqlda->sqlvar[i].sqltype, d->sqlda->sqlvar[i].sqlscale < 0));
-            if(v.type() == QVariant::Double) {
+            if (v.userType() == QVariant::Double) {
                 switch(numericalPrecisionPolicy()) {
                 case QSql::LowPrecisionInt32:
                     v.convert(QVariant::Int);
diff --git a/src/plugins/sqldrivers/mysql/qsql_mysql.cpp b/src/plugins/sqldrivers/mysql/qsql_mysql.cpp
index 0e195cfdb41..90a810d5163 100644
--- a/src/plugins/sqldrivers/mysql/qsql_mysql.cpp
+++ b/src/plugins/sqldrivers/mysql/qsql_mysql.cpp
@@ -223,13 +223,13 @@ public:
     {
         QMyField()
             : outField(0), nullIndicator(false), bufLength(0ul),
-              myField(0), type(QVariant::Invalid)
+              myField(0), type(QMetaType::UnknownType)
         {}
         char *outField;
         my_bool nullIndicator;
         ulong bufLength;
         MYSQL_FIELD *myField;
-        QVariant::Type type;
+        QMetaType::Type type;
     };
 
     QVector<QMyField> fields;
@@ -263,25 +263,25 @@ static QSqlError qMakeError(const QString& err, QSqlError::ErrorType type,
 }
 
 
-static QVariant::Type qDecodeMYSQLType(int mysqltype, uint flags)
+static QMetaType::Type qDecodeMYSQLType(int mysqltype, uint flags)
 {
-    QVariant::Type type;
+    QMetaType::Type type;
     switch (mysqltype) {
     case FIELD_TYPE_TINY :
-        type = static_cast<QVariant::Type>((flags & UNSIGNED_FLAG) ? QMetaType::UChar : QMetaType::Char);
+        type = (flags & UNSIGNED_FLAG) ? QMetaType::UChar : QMetaType::Char;
         break;
     case FIELD_TYPE_SHORT :
-        type = static_cast<QVariant::Type>((flags & UNSIGNED_FLAG) ? QMetaType::UShort : QMetaType::Short);
+        type = (flags & UNSIGNED_FLAG) ? QMetaType::UShort : QMetaType::Short;
         break;
     case FIELD_TYPE_LONG :
     case FIELD_TYPE_INT24 :
-        type = (flags & UNSIGNED_FLAG) ? QVariant::UInt : QVariant::Int;
+        type = (flags & UNSIGNED_FLAG) ? QMetaType::UInt : QMetaType::Int;
         break;
     case FIELD_TYPE_YEAR :
-        type = QVariant::Int;
+        type = QMetaType::Int;
         break;
     case FIELD_TYPE_LONGLONG :
-        type = (flags & UNSIGNED_FLAG) ? QVariant::ULongLong : QVariant::LongLong;
+        type = (flags & UNSIGNED_FLAG) ? QMetaType::ULongLong : QMetaType::LongLong;
         break;
     case FIELD_TYPE_FLOAT :
     case FIELD_TYPE_DOUBLE :
@@ -289,19 +289,19 @@ static QVariant::Type qDecodeMYSQLType(int mysqltype, uint flags)
 #if defined(FIELD_TYPE_NEWDECIMAL)
     case FIELD_TYPE_NEWDECIMAL:
 #endif
-        type = QVariant::Double;
+        type = QMetaType::Double;
         break;
     case FIELD_TYPE_DATE :
-        type = QVariant::Date;
+        type = QMetaType::QDate;
         break;
     case FIELD_TYPE_TIME :
         // A time field can be within the range '-838:59:59' to '838:59:59' so
         // use QString instead of QTime since QTime is limited to 24 hour clock
-        type = QVariant::String;
+        type = QMetaType::QString;
         break;
     case FIELD_TYPE_DATETIME :
     case FIELD_TYPE_TIMESTAMP :
-        type = QVariant::DateTime;
+        type = QMetaType::QDateTime;
         break;
     case FIELD_TYPE_STRING :
     case FIELD_TYPE_VAR_STRING :
@@ -309,12 +309,12 @@ static QVariant::Type qDecodeMYSQLType(int mysqltype, uint flags)
     case FIELD_TYPE_TINY_BLOB :
     case FIELD_TYPE_MEDIUM_BLOB :
     case FIELD_TYPE_LONG_BLOB :
-        type = (flags & BINARY_FLAG) ? QVariant::ByteArray : QVariant::String;
+        type = (flags & BINARY_FLAG) ? QMetaType::QByteArray : QMetaType::QString;
         break;
     default:
     case FIELD_TYPE_ENUM :
     case FIELD_TYPE_SET :
-        type = QVariant::String;
+        type = QMetaType::QString;
         break;
     }
     return type;
@@ -323,7 +323,7 @@ static QVariant::Type qDecodeMYSQLType(int mysqltype, uint flags)
 static QSqlField qToField(MYSQL_FIELD *field, QTextCodec *tc)
 {
     QSqlField f(toUnicode(tc, field->name),
-                qDecodeMYSQLType(int(field->type), field->flags),
+                QVariant::Type(qDecodeMYSQLType(int(field->type), field->flags)),
                 toUnicode(tc, field->table));
     f.setRequired(IS_NOT_NULL(field->flags));
     f.setLength(field->length);
@@ -610,7 +610,7 @@ QVariant QMYSQLResult::data(int field)
     QString val;
     if (d->preparedQuery) {
         if (f.nullIndicator)
-            return QVariant(f.type);
+            return QVariant(QVariant::Type(f.type));
 
         if (qIsInteger(f.type)) {
             QVariant variant(f.type, f.outField);
@@ -622,34 +622,34 @@ QVariant QMYSQLResult::data(int field)
             return variant;
         }
 
-        if (f.type != QVariant::ByteArray)
+        if (f.type != QMetaType::QByteArray)
             val = toUnicode(d->drv_d_func()->tc, f.outField, f.bufLength);
     } else {
         if (d->row[field] == NULL) {
             // NULL value
-            return QVariant(f.type);
+            return QVariant(QVariant::Type(f.type));
         }
 
         fieldLength = mysql_fetch_lengths(d->result)[field];
 
-        if (f.type != QVariant::ByteArray)
+        if (f.type != QMetaType::QByteArray)
             val = toUnicode(d->drv_d_func()->tc, d->row[field], fieldLength);
     }
 
     switch (static_cast<int>(f.type)) {
-    case QVariant::LongLong:
+    case QMetaType::LongLong:
         return QVariant(val.toLongLong());
-    case QVariant::ULongLong:
+    case QMetaType::ULongLong:
         return QVariant(val.toULongLong());
     case QMetaType::Char:
     case QMetaType::Short:
-    case QVariant::Int:
+    case QMetaType::Int:
         return QVariant(val.toInt());
     case QMetaType::UChar:
     case QMetaType::UShort:
-    case QVariant::UInt:
+    case QMetaType::UInt:
         return QVariant(val.toUInt());
-    case QVariant::Double: {
+    case QMetaType::Double: {
         QVariant v;
         bool ok=false;
         double dbl = val.toDouble(&ok);
@@ -673,13 +673,13 @@ QVariant QMYSQLResult::data(int field)
             return v;
         return QVariant();
     }
-    case QVariant::Date:
+    case QMetaType::QDate:
         return qDateFromString(val);
-    case QVariant::Time:
+    case QMetaType::QTime:
         return qTimeFromString(val);
-    case QVariant::DateTime:
+    case QMetaType::QDateTime:
         return qDateTimeFromString(val);
-    case QVariant::ByteArray: {
+    case QMetaType::QByteArray: {
 
         QByteArray ba;
         if (d->preparedQuery) {
@@ -689,7 +689,7 @@ QVariant QMYSQLResult::data(int field)
         }
         return QVariant(ba);
     }
-    case QVariant::String:
+    case QMetaType::QString:
     default:
         return QVariant(val);
     }
@@ -867,21 +867,21 @@ void QMYSQLResult::virtual_hook(int id, void *data)
     QSqlResult::virtual_hook(id, data);
 }
 
-static MYSQL_TIME *toMySqlDate(QDate date, QTime time, QVariant::Type type)
+static MYSQL_TIME *toMySqlDate(QDate date, QTime time, int type)
 {
-    Q_ASSERT(type == QVariant::Time || type == QVariant::Date
-             || type == QVariant::DateTime);
+    Q_ASSERT(type == QMetaType::QTime || type == QMetaType::QDate
+             || type == QMetaType::QDateTime);
 
     MYSQL_TIME *myTime = new MYSQL_TIME;
     memset(myTime, 0, sizeof(MYSQL_TIME));
 
-    if (type == QVariant::Time || type == QVariant::DateTime) {
+    if (type == QMetaType::QTime || type == QMetaType::QDateTime) {
         myTime->hour = time.hour();
         myTime->minute = time.minute();
         myTime->second = time.second();
         myTime->second_part = time.msec() * 1000;
     }
-    if (type == QVariant::Date || type == QVariant::DateTime) {
+    if (type == QMetaType::QDate || type == QMetaType::QDateTime) {
         myTime->year = date.year();
         myTime->month = date.month();
         myTime->day = date.day();
@@ -971,30 +971,30 @@ bool QMYSQLResult::exec()
             currBind->length = 0;
             currBind->is_unsigned = 0;
 
-            switch (val.type()) {
-                case QVariant::ByteArray:
+            switch (val.userType()) {
+                case QMetaType::QByteArray:
                     currBind->buffer_type = MYSQL_TYPE_BLOB;
                     currBind->buffer = const_cast<char *>(val.toByteArray().constData());
                     currBind->buffer_length = val.toByteArray().size();
                     break;
 
-                case QVariant::Time:
-                case QVariant::Date:
-                case QVariant::DateTime: {
-                    MYSQL_TIME *myTime = toMySqlDate(val.toDate(), val.toTime(), val.type());
+                case QMetaType::QTime:
+                case QMetaType::QDate:
+                case QMetaType::QDateTime: {
+                    MYSQL_TIME *myTime = toMySqlDate(val.toDate(), val.toTime(), val.userType());
                     timeVector.append(myTime);
 
                     currBind->buffer = myTime;
-                    switch(val.type()) {
-                    case QVariant::Time:
+                    switch (val.userType()) {
+                    case QMetaType::QTime:
                         currBind->buffer_type = MYSQL_TYPE_TIME;
                         myTime->time_type = MYSQL_TIMESTAMP_TIME;
                         break;
-                    case QVariant::Date:
+                    case QMetaType::QDate:
                         currBind->buffer_type = MYSQL_TYPE_DATE;
                         myTime->time_type = MYSQL_TIMESTAMP_DATE;
                         break;
-                    case QVariant::DateTime:
+                    case QMetaType::QDateTime:
                         currBind->buffer_type = MYSQL_TYPE_DATETIME;
                         myTime->time_type = MYSQL_TIMESTAMP_DATETIME;
                         break;
@@ -1004,32 +1004,32 @@ bool QMYSQLResult::exec()
                     currBind->buffer_length = sizeof(MYSQL_TIME);
                     currBind->length = 0;
                     break; }
-                case QVariant::UInt:
-                case QVariant::Int:
+                case QMetaType::UInt:
+                case QMetaType::Int:
                     currBind->buffer_type = MYSQL_TYPE_LONG;
                     currBind->buffer = data;
                     currBind->buffer_length = sizeof(int);
-                    currBind->is_unsigned = (val.type() != QVariant::Int);
+                    currBind->is_unsigned = (val.userType() != QMetaType::Int);
                 break;
-                case QVariant::Bool:
+                case QMetaType::Bool:
                     currBind->buffer_type = MYSQL_TYPE_TINY;
                     currBind->buffer = data;
                     currBind->buffer_length = sizeof(bool);
                     currBind->is_unsigned = false;
                     break;
-                case QVariant::Double:
+                case QMetaType::Double:
                     currBind->buffer_type = MYSQL_TYPE_DOUBLE;
                     currBind->buffer = data;
                     currBind->buffer_length = sizeof(double);
                     break;
-                case QVariant::LongLong:
-                case QVariant::ULongLong:
+                case QMetaType::LongLong:
+                case QMetaType::ULongLong:
                     currBind->buffer_type = MYSQL_TYPE_LONGLONG;
                     currBind->buffer = data;
                     currBind->buffer_length = sizeof(qint64);
-                    currBind->is_unsigned = (val.type() == QVariant::ULongLong);
+                    currBind->is_unsigned = (val.userType() == QMetaType::ULongLong);
                     break;
-                case QVariant::String:
+                case QMetaType::QString:
                 default: {
                     QByteArray ba = fromUnicode(d->drv_d_func()->tc, val.toString());
                     stringVector.append(ba);
@@ -1548,16 +1548,16 @@ QString QMYSQLDriver::formatValue(const QSqlField &field, bool trimStrings) cons
     if (field.isNull()) {
         r = QStringLiteral("NULL");
     } else {
-        switch(field.type()) {
-        case QVariant::Double:
+        switch (+field.type()) {
+        case QMetaType::Double:
             r = QString::number(field.value().toDouble(), 'g', field.precision());
             break;
-        case QVariant::String:
+        case QMetaType::QString:
             // Escape '\' characters
             r = QSqlDriver::formatValue(field, trimStrings);
             r.replace(QLatin1String("\\"), QLatin1String("\\\\"));
             break;
-        case QVariant::ByteArray:
+        case QMetaType::QByteArray:
             if (isOpen()) {
                 const QByteArray ba = field.value().toByteArray();
                 // buffer has to be at least length*2+1 bytes
diff --git a/src/plugins/sqldrivers/odbc/qsql_odbc.cpp b/src/plugins/sqldrivers/odbc/qsql_odbc.cpp
index 7709b13cd15..33bad23e3b3 100644
--- a/src/plugins/sqldrivers/odbc/qsql_odbc.cpp
+++ b/src/plugins/sqldrivers/odbc/qsql_odbc.cpp
@@ -1422,7 +1422,7 @@ bool QODBCResult::exec()
         SQLLEN *ind = &indicators[i];
         if (val.isNull())
             *ind = SQL_NULL_DATA;
-        switch (val.type()) {
+        switch (val.userType()) {
             case QVariant::Date: {
                 QByteArray &ba = tmpStorage[i];
                 ba.resize(sizeof(DATE_STRUCT));
@@ -1694,7 +1694,7 @@ bool QODBCResult::exec()
         return true;
 
     for (i = 0; i < values.count(); ++i) {
-        switch (values.at(i).type()) {
+        switch (values.at(i).userType()) {
             case QVariant::Date: {
                 DATE_STRUCT ds = *((DATE_STRUCT *)const_cast<char *>(tmpStorage.at(i).constData()));
                 values[i] = QVariant(QDate(ds.year, ds.month, ds.day));
@@ -1735,7 +1735,7 @@ bool QODBCResult::exec()
                 break; }
         }
         if (indicators[i] == SQL_NULL_DATA)
-            values[i] = QVariant(values[i].type());
+            values[i] = QVariant(QVariant::Type(values[i].userType()));
     }
     return true;
 }
diff --git a/src/plugins/sqldrivers/sqlite/qsql_sqlite.cpp b/src/plugins/sqldrivers/sqlite/qsql_sqlite.cpp
index 65d3f0a5803..551d7624349 100644
--- a/src/plugins/sqldrivers/sqlite/qsql_sqlite.cpp
+++ b/src/plugins/sqldrivers/sqlite/qsql_sqlite.cpp
@@ -505,7 +505,7 @@ bool QSQLiteResult::exec()
             if (value.isNull()) {
                 res = sqlite3_bind_null(d->stmt, i + 1);
             } else {
-                switch (value.type()) {
+                switch (value.userType()) {
                 case QVariant::ByteArray: {
                     const QByteArray *ba = static_cast<const QByteArray*>(value.constData());
                     res = sqlite3_bind_blob(d->stmt, i + 1, ba->constData(),
diff --git a/src/sql/kernel/qsqldriver.cpp b/src/sql/kernel/qsqldriver.cpp
index fcd3c70a043..d1c9057aacb 100644
--- a/src/sql/kernel/qsqldriver.cpp
+++ b/src/sql/kernel/qsqldriver.cpp
@@ -612,30 +612,30 @@ QString QSqlDriver::formatValue(const QSqlField &field, bool trimStrings) const
     if (field.isNull())
         r = nullTxt;
     else {
-        switch (field.type()) {
-        case QVariant::Int:
-        case QVariant::UInt:
-            if (field.value().type() == QVariant::Bool)
+        switch (+field.type()) {
+        case QMetaType::Int:
+        case QMetaType::UInt:
+            if (field.value().userType() == QMetaType::Bool)
                 r = field.value().toBool() ? QLatin1String("1") : QLatin1String("0");
             else
                 r = field.value().toString();
             break;
 #if QT_CONFIG(datestring)
-        case QVariant::Date:
+        case QMetaType::QDate:
             if (field.value().toDate().isValid())
                 r = QLatin1Char('\'') + field.value().toDate().toString(Qt::ISODate)
                     + QLatin1Char('\'');
             else
                 r = nullTxt;
             break;
-        case QVariant::Time:
+        case QMetaType::QTime:
             if (field.value().toTime().isValid())
                 r =  QLatin1Char('\'') + field.value().toTime().toString(Qt::ISODate)
                      + QLatin1Char('\'');
             else
                 r = nullTxt;
             break;
-        case QVariant::DateTime:
+        case QMetaType::QDateTime:
             if (field.value().toDateTime().isValid())
                 r = QLatin1Char('\'') +
                     field.value().toDateTime().toString(Qt::ISODate) + QLatin1Char('\'');
@@ -643,8 +643,8 @@ QString QSqlDriver::formatValue(const QSqlField &field, bool trimStrings) const
                 r = nullTxt;
             break;
 #endif
-        case QVariant::String:
-        case QVariant::Char:
+        case QMetaType::QString:
+        case QMetaType::QChar:
         {
             QString result = field.value().toString();
             if (trimStrings) {
@@ -658,10 +658,10 @@ QString QSqlDriver::formatValue(const QSqlField &field, bool trimStrings) const
             r = QLatin1Char('\'') + result + QLatin1Char('\'');
             break;
         }
-        case QVariant::Bool:
+        case QMetaType::Bool:
             r = QString::number(field.value().toBool());
             break;
-        case QVariant::ByteArray : {
+        case QMetaType::QByteArray : {
             if (hasFeature(BLOB)) {
                 QByteArray ba = field.value().toByteArray();
                 QString res;
diff --git a/src/sql/kernel/qsqlfield.cpp b/src/sql/kernel/qsqlfield.cpp
index 5a6d173b3bd..86a22bae106 100644
--- a/src/sql/kernel/qsqlfield.cpp
+++ b/src/sql/kernel/qsqlfield.cpp
@@ -48,7 +48,7 @@ class QSqlFieldPrivate
 public:
     QSqlFieldPrivate(const QString &name,
                      QVariant::Type type, const QString &tableName) :
-        ref(1), nm(name), table(tableName), def(QVariant()), type(type),
+        ref(1), nm(name), table(tableName), def(QVariant()), type(QMetaType::Type(type)),
         req(QSqlField::Unknown), len(-1), prec(-1), tp(-1),
         ro(false), gen(true), autoval(false)
     {}
@@ -86,7 +86,7 @@ public:
     QString nm;
     QString table;
     QVariant def;
-    QVariant::Type type;
+    QMetaType::Type type;
     QSqlField::RequiredStatus req;
     int len;
     int prec;
@@ -399,7 +399,7 @@ QString QSqlField::name() const
 */
 QVariant::Type QSqlField::type() const
 {
-    return d->type;
+    return QVariant::Type(d->type);
 }
 
 /*!
@@ -411,12 +411,11 @@ QVariant::Type QSqlField::type() const
 void QSqlField::setType(QVariant::Type type)
 {
     detach();
-    d->type = type;
+    d->type = QMetaType::Type(type);
     if (!val.isValid())
         val = QVariant(type);
 }
 
-
 /*!
     Returns \c true if the field's value is read-only; otherwise returns
     false.
@@ -526,7 +525,7 @@ bool QSqlField::isGenerated() const
 */
 bool QSqlField::isValid() const
 {
-    return d->type != QVariant::Invalid;
+    return d->type != QMetaType::UnknownType;
 }
 
 #ifndef QT_NO_DEBUG_STREAM
diff --git a/src/sql/kernel/qsqlfield.h b/src/sql/kernel/qsqlfield.h
index 8650ba8715f..892420d26ef 100644
--- a/src/sql/kernel/qsqlfield.h
+++ b/src/sql/kernel/qsqlfield.h
@@ -55,7 +55,7 @@ public:
     enum RequiredStatus { Unknown = -1, Optional = 0, Required = 1 };
 
     explicit QSqlField(const QString& fieldName = QString(),
-                       QVariant::Type type = QVariant::Invalid);
+                       QVariant::Type type = {});
     QSqlField(const QString &fieldName, QVariant::Type type,
               const QString &tableName);
 
diff --git a/src/sql/kernel/qsqlresult.cpp b/src/sql/kernel/qsqlresult.cpp
index cc91c6d0ed7..a41b3d8424c 100644
--- a/src/sql/kernel/qsqlresult.cpp
+++ b/src/sql/kernel/qsqlresult.cpp
@@ -645,7 +645,7 @@ bool QSqlResult::exec()
         for (i = d->holders.count() - 1; i >= 0; --i) {
             holder = d->holders.at(i).holderName;
             val = d->values.value(d->indexes.value(holder).value(0,-1));
-            QSqlField f(QLatin1String(""), val.type());
+            QSqlField f(QLatin1String(""), QVariant::Type(val.userType()));
             f.setValue(val);
             query = query.replace(d->holders.at(i).holderPos,
                                    holder.length(), driver()->formatValue(f));
@@ -659,7 +659,7 @@ bool QSqlResult::exec()
             if (i == -1)
                 continue;
             QVariant var = d->values.value(idx);
-            QSqlField f(QLatin1String(""), var.type());
+            QSqlField f(QLatin1String(""), QVariant::Type(var.userType()));
             if (var.isNull())
                 f.clear();
             else
diff --git a/src/testlib/qtest.h b/src/testlib/qtest.h
index 3b1ffb389e4..0298ff96e3f 100644
--- a/src/testlib/qtest.h
+++ b/src/testlib/qtest.h
@@ -218,7 +218,7 @@ template<> inline char *toString(const QVariant &v)
         vstring.append(type);
         if (!v.isNull()) {
             vstring.append(',');
-            if (v.canConvert(QVariant::String)) {
+            if (v.canConvert(QMetaType::QString)) {
                 vstring.append(v.toString().toLocal8Bit());
             }
             else {
diff --git a/src/testlib/qtestlog.cpp b/src/testlib/qtestlog.cpp
index f3ebf343c51..27767407847 100644
--- a/src/testlib/qtestlog.cpp
+++ b/src/testlib/qtestlog.cpp
@@ -152,7 +152,7 @@ namespace QTest {
         inline bool matches(QtMsgType tp, const QString &message) const
         {
             return tp == type
-                   && (pattern.type() == QVariant::String ?
+                   && (pattern.userType() == QMetaType::QString ?
                        stringsMatch(pattern.toString(), message) :
 #if QT_CONFIG(regularexpression)
                        pattern.toRegularExpression().match(message).hasMatch());
@@ -292,7 +292,7 @@ void QTestLog::printUnhandledIgnoreMessages()
     QString message;
     QTest::IgnoreResultList *list = QTest::ignoreResultList;
     while (list) {
-        if (list->pattern.type() == QVariant::String) {
+        if (list->pattern.userType() == QMetaType::QString) {
             message = QStringLiteral("Did not receive message: \"") + list->pattern.toString() + QLatin1Char('"');
         } else {
 #if QT_CONFIG(regularexpression)
diff --git a/src/tools/qdbuscpp2xml/qdbuscpp2xml.cpp b/src/tools/qdbuscpp2xml/qdbuscpp2xml.cpp
index 81ebafad790..768594efb46 100644
--- a/src/tools/qdbuscpp2xml/qdbuscpp2xml.cpp
+++ b/src/tools/qdbuscpp2xml/qdbuscpp2xml.cpp
@@ -115,7 +115,7 @@ static QString addFunction(const FunctionDef &mm, bool isSignal = false) {
                         .arg(typeNameToXml(typeName));
 
                     // do we need to describe this argument?
-                    if (QDBusMetaType::signatureToType(typeName) == QVariant::Invalid)
+                    if (QDBusMetaType::signatureToType(typeName) == QMetaType::UnknownType)
                         xml += QString::fromLatin1("      <annotation name=\"org.qtproject.QtDBus.QtTypeName.Out0\" value=\"%1\"/>\n")
                             .arg(typeNameToXml(mm.normalizedType.constData()));
             } else {
@@ -159,7 +159,7 @@ static QString addFunction(const FunctionDef &mm, bool isSignal = false) {
                      isOutput ? QLatin1String("out") : QLatin1String("in"));
 
         // do we need to describe this argument?
-        if (QDBusMetaType::signatureToType(signature) == QVariant::Invalid) {
+        if (QDBusMetaType::signatureToType(signature) == QMetaType::UnknownType) {
             const char *typeName = QMetaType::typeName(types.at(j));
             xml += QString::fromLatin1("      <annotation name=\"org.qtproject.QtDBus.QtTypeName.%1%2\" value=\"%3\"/>\n")
                     .arg(isOutput ? QLatin1String("Out") : QLatin1String("In"))
@@ -225,7 +225,7 @@ static QString generateInterfaceXml(const ClassDef *mo)
                            QLatin1String(signature),
                            QLatin1String(accessvalues[access]));
 
-            if (QDBusMetaType::signatureToType(signature) == QVariant::Invalid) {
+            if (QDBusMetaType::signatureToType(signature) == QMetaType::UnknownType) {
                 retval += QString::fromLatin1(">\n      <annotation name=\"org.qtproject.QtDBus.QtTypeName\" value=\"%3\"/>\n    </property>\n")
                           .arg(typeNameToXml(mp.type.constData()));
             } else {
diff --git a/src/tools/qdbusxml2cpp/qdbusxml2cpp.cpp b/src/tools/qdbusxml2cpp/qdbusxml2cpp.cpp
index 9cf753a3f12..9825596f3d9 100644
--- a/src/tools/qdbusxml2cpp/qdbusxml2cpp.cpp
+++ b/src/tools/qdbusxml2cpp/qdbusxml2cpp.cpp
@@ -211,7 +211,7 @@ static QString classNameForInterface(const QString &interface, ClassType classTy
 static QByteArray qtTypeName(const QString &signature, const QDBusIntrospection::Annotations &annotations, int paramId = -1, const char *direction = "Out", bool isSignal = false)
 {
     int type = QDBusMetaType::signatureToType(signature.toLatin1());
-    if (type == QVariant::Invalid) {
+    if (type == QMetaType::UnknownType) {
         QString annotationName = QString::fromLatin1("org.qtproject.QtDBus.QtTypeName");
         if (paramId >= 0)
             annotationName += QString::fromLatin1(".%1%2").arg(QLatin1String(direction)).arg(paramId);
diff --git a/src/widgets/dialogs/qsidebar.cpp b/src/widgets/dialogs/qsidebar.cpp
index dfb707eda05..4272b612ec1 100644
--- a/src/widgets/dialogs/qsidebar.cpp
+++ b/src/widgets/dialogs/qsidebar.cpp
@@ -163,7 +163,7 @@ bool QUrlModel::dropMimeData(const QMimeData *data, Qt::DropAction action,
 */
 bool QUrlModel::setData(const QModelIndex &index, const QVariant &value, int role)
 {
-    if (value.type() == QVariant::Url) {
+    if (value.userType() == QMetaType::QUrl) {
         QUrl url = value.toUrl();
         QModelIndex dirIndex = fileSystemModel->index(url.toLocalFile());
         //On windows the popup display the "C:\", convert to nativeSeparators
diff --git a/src/widgets/graphicsview/qgraphicsitem.cpp b/src/widgets/graphicsview/qgraphicsitem.cpp
index 6f1eb4b346d..a2120e53fe1 100644
--- a/src/widgets/graphicsview/qgraphicsitem.cpp
+++ b/src/widgets/graphicsview/qgraphicsitem.cpp
@@ -10511,13 +10511,13 @@ QVariant QGraphicsTextItem::inputMethodQuery(Qt::InputMethodQuery query) const
         v = int(inputMethodHints());
     else if (dd->control)
         v = dd->control->inputMethodQuery(query, QVariant());
-    if (v.type() == QVariant::RectF)
+    if (v.userType() == QMetaType::QRectF)
         v = v.toRectF().translated(-dd->controlOffset());
-    else if (v.type() == QVariant::PointF)
+    else if (v.userType() == QMetaType::QPointF)
         v = v.toPointF() - dd->controlOffset();
-    else if (v.type() == QVariant::Rect)
+    else if (v.userType() == QMetaType::QRect)
         v = v.toRect().translated(-dd->controlOffset().toPoint());
-    else if (v.type() == QVariant::Point)
+    else if (v.userType() == QMetaType::QPoint)
         v = v.toPoint() - dd->controlOffset().toPoint();
     return v;
 }
diff --git a/src/widgets/graphicsview/qgraphicsproxywidget.cpp b/src/widgets/graphicsview/qgraphicsproxywidget.cpp
index 4d4958c674c..eb8acf1f279 100644
--- a/src/widgets/graphicsview/qgraphicsproxywidget.cpp
+++ b/src/widgets/graphicsview/qgraphicsproxywidget.cpp
@@ -1441,17 +1441,17 @@ QVariant QGraphicsProxyWidget::inputMethodQuery(Qt::InputMethodQuery query) cons
         focusWidget = d->widget;
     QVariant v = focusWidget->inputMethodQuery(query);
     QPointF focusWidgetPos = subWidgetRect(focusWidget).topLeft();
-    switch (v.type()) {
-    case QVariant::RectF:
+    switch (v.userType()) {
+    case QMetaType::QRectF:
         v = v.toRectF().translated(focusWidgetPos);
         break;
-    case QVariant::PointF:
+    case QMetaType::QPointF:
         v = v.toPointF() + focusWidgetPos;
         break;
-    case QVariant::Rect:
+    case QMetaType::QRect:
         v = v.toRect().translated(focusWidgetPos.toPoint());
         break;
-    case QVariant::Point:
+    case QMetaType::QPoint:
         v = v.toPoint() + focusWidgetPos.toPoint();
         break;
     default:
diff --git a/src/widgets/graphicsview/qgraphicsscene.cpp b/src/widgets/graphicsview/qgraphicsscene.cpp
index 1c6e68def14..1cb24f74b6c 100644
--- a/src/widgets/graphicsview/qgraphicsscene.cpp
+++ b/src/widgets/graphicsview/qgraphicsscene.cpp
@@ -3190,13 +3190,13 @@ QVariant QGraphicsScene::inputMethodQuery(Qt::InputMethodQuery query) const
         return QVariant();
     const QTransform matrix = d->focusItem->sceneTransform();
     QVariant value = d->focusItem->inputMethodQuery(query);
-    if (value.type() == QVariant::RectF)
+    if (value.userType() == QMetaType::QRectF)
         value = matrix.mapRect(value.toRectF());
-    else if (value.type() == QVariant::PointF)
+    else if (value.userType() == QMetaType::QPointF)
         value = matrix.map(value.toPointF());
-    else if (value.type() == QVariant::Rect)
+    else if (value.userType() == QMetaType::QRect)
         value = matrix.mapRect(value.toRect());
-    else if (value.type() == QVariant::Point)
+    else if (value.userType() == QMetaType::QPoint)
         value = matrix.map(value.toPoint());
     return value;
 }
diff --git a/src/widgets/graphicsview/qgraphicsview.cpp b/src/widgets/graphicsview/qgraphicsview.cpp
index 7589a1ebbd5..e1a829f779e 100644
--- a/src/widgets/graphicsview/qgraphicsview.cpp
+++ b/src/widgets/graphicsview/qgraphicsview.cpp
@@ -2589,13 +2589,13 @@ QVariant QGraphicsView::inputMethodQuery(Qt::InputMethodQuery query) const
         return QVariant();
 
     QVariant value = d->scene->inputMethodQuery(query);
-    if (value.type() == QVariant::RectF)
+    if (value.userType() == QMetaType::QRectF)
         value = d->mapRectFromScene(value.toRectF());
-    else if (value.type() == QVariant::PointF)
+    else if (value.userType() == QMetaType::QPointF)
         value = mapFromScene(value.toPointF());
-    else if (value.type() == QVariant::Rect)
+    else if (value.userType() == QMetaType::QRect)
         value = d->mapRectFromScene(value.toRect()).toRect();
-    else if (value.type() == QVariant::Point)
+    else if (value.userType() == QMetaType::QPoint)
         value = mapFromScene(value.toPoint());
     return value;
 }
diff --git a/src/widgets/itemviews/qabstractitemdelegate.cpp b/src/widgets/itemviews/qabstractitemdelegate.cpp
index bb47881c030..c5b22b56679 100644
--- a/src/widgets/itemviews/qabstractitemdelegate.cpp
+++ b/src/widgets/itemviews/qabstractitemdelegate.cpp
@@ -585,27 +585,27 @@ QString QAbstractItemDelegatePrivate::textForRole(Qt::ItemDataRole role, const Q
     case QMetaType::Float:
         text = locale.toString(value.toFloat());
         break;
-    case QVariant::Double:
+    case QMetaType::Double:
         text = locale.toString(value.toDouble(), 'g', precision);
         break;
-    case QVariant::Int:
-    case QVariant::LongLong:
+    case QMetaType::Int:
+    case QMetaType::LongLong:
         text = locale.toString(value.toLongLong());
         break;
-    case QVariant::UInt:
-    case QVariant::ULongLong:
+    case QMetaType::UInt:
+    case QMetaType::ULongLong:
         text = locale.toString(value.toULongLong());
         break;
-    case QVariant::Date:
+    case QMetaType::QDate:
         text = locale.toString(value.toDate(), formatType);
         break;
-    case QVariant::Time:
+    case QMetaType::QTime:
         text = locale.toString(value.toTime(), formatType);
         break;
-    case QVariant::DateTime:
+    case QMetaType::QDateTime:
         text = locale.toString(value.toDateTime(), formatType);
         break;
-    case QVariant::Type(QMetaType::QJsonValue): {
+    case QMetaType::QJsonValue: {
         const QJsonValue val = value.toJsonValue();
         if (val.isBool()) {
             text = QVariant(val.toBool()).toString();
diff --git a/src/widgets/itemviews/qabstractitemview.cpp b/src/widgets/itemviews/qabstractitemview.cpp
index 0e54cf235fa..2524d4acfa8 100644
--- a/src/widgets/itemviews/qabstractitemview.cpp
+++ b/src/widgets/itemviews/qabstractitemview.cpp
@@ -2339,7 +2339,7 @@ void QAbstractItemView::keyPressEvent(QKeyEvent *event)
         QVariant variant;
         if (d->model)
             variant = d->model->data(currentIndex(), Qt::DisplayRole);
-        if (variant.type() == QVariant::String)
+        if (variant.userType() == QMetaType::QString)
             QGuiApplication::clipboard()->setText(variant.toString());
         event->accept();
     }
diff --git a/src/widgets/itemviews/qheaderview.cpp b/src/widgets/itemviews/qheaderview.cpp
index 790f3054634..84e2fd72a96 100644
--- a/src/widgets/itemviews/qheaderview.cpp
+++ b/src/widgets/itemviews/qheaderview.cpp
@@ -3660,7 +3660,7 @@ void QHeaderViewPrivate::flipSortIndicator(int section)
         sortOrder = (sortIndicatorOrder == Qt::DescendingOrder) ? Qt::AscendingOrder : Qt::DescendingOrder;
     } else {
         const QVariant value = model->headerData(section, orientation, Qt::InitialSortOrderRole);
-        if (value.canConvert(QVariant::Int))
+        if (value.canConvert(QMetaType::Int))
             sortOrder = static_cast<Qt::SortOrder>(value.toInt());
         else
             sortOrder = Qt::AscendingOrder;
diff --git a/src/widgets/itemviews/qitemdelegate.cpp b/src/widgets/itemviews/qitemdelegate.cpp
index daea907963c..4420d39b8e0 100644
--- a/src/widgets/itemviews/qitemdelegate.cpp
+++ b/src/widgets/itemviews/qitemdelegate.cpp
@@ -414,7 +414,7 @@ void QItemDelegate::paint(QPainter *painter,
     if (value.isValid()) {
         // ### we need the pixmap to call the virtual function
         pixmap = decoration(opt, value);
-        if (value.type() == QVariant::Icon) {
+        if (value.userType() == QMetaType::QIcon) {
             d->tmp.icon = qvariant_cast<QIcon>(value);
             d->tmp.mode = d->iconMode(option.state);
             d->tmp.state = d->iconState(option.state);
@@ -969,12 +969,12 @@ void QItemDelegate::doLayout(const QStyleOptionViewItem &option,
 QPixmap QItemDelegate::decoration(const QStyleOptionViewItem &option, const QVariant &variant) const
 {
     Q_D(const QItemDelegate);
-    switch (variant.type()) {
-    case QVariant::Icon: {
+    switch (variant.userType()) {
+    case QMetaType::QIcon: {
         QIcon::Mode mode = d->iconMode(option.state);
         QIcon::State state = d->iconState(option.state);
         return qvariant_cast<QIcon>(variant).pixmap(option.decorationSize, mode, state); }
-    case QVariant::Color: {
+    case QMetaType::QColor: {
         static QPixmap pixmap(option.decorationSize);
         pixmap.fill(qvariant_cast<QColor>(variant));
         return pixmap; }
@@ -1060,24 +1060,24 @@ QRect QItemDelegate::rect(const QStyleOptionViewItem &option,
     if (role == Qt::CheckStateRole)
         return doCheck(option, option.rect, value);
     if (value.isValid() && !value.isNull()) {
-        switch (value.type()) {
-        case QVariant::Invalid:
+        switch (value.userType()) {
+        case QMetaType::UnknownType:
             break;
-        case QVariant::Pixmap: {
+        case QMetaType::QPixmap: {
             const QPixmap &pixmap = qvariant_cast<QPixmap>(value);
             return QRect(QPoint(0, 0), pixmap.size() / pixmap.devicePixelRatio() ); }
-        case QVariant::Image: {
+        case QMetaType::QImage: {
             const QImage &image = qvariant_cast<QImage>(value);
             return QRect(QPoint(0, 0), image.size() /  image.devicePixelRatio() ); }
-        case QVariant::Icon: {
+        case QMetaType::QIcon: {
             QIcon::Mode mode = d->iconMode(option.state);
             QIcon::State state = d->iconState(option.state);
             QIcon icon = qvariant_cast<QIcon>(value);
             QSize size = icon.actualSize(option.decorationSize, mode, state);
             return QRect(QPoint(0, 0), size); }
-        case QVariant::Color:
+        case QMetaType::QColor:
             return QRect(QPoint(0, 0), option.decorationSize);
-        case QVariant::String:
+        case QMetaType::QString:
         default: {
             const QString text = d->valueToText(value, option);
             value = index.data(Qt::FontRole);
diff --git a/src/widgets/itemviews/qitemeditorfactory.cpp b/src/widgets/itemviews/qitemeditorfactory.cpp
index f874597d59e..fe9b482122f 100644
--- a/src/widgets/itemviews/qitemeditorfactory.cpp
+++ b/src/widgets/itemviews/qitemeditorfactory.cpp
@@ -241,21 +241,21 @@ QWidget *QDefaultItemEditorFactory::createEditor(int userType, QWidget *parent)
 {
     switch (userType) {
 #if QT_CONFIG(combobox)
-    case QVariant::Bool: {
+    case QMetaType::Bool: {
         QBooleanComboBox *cb = new QBooleanComboBox(parent);
         cb->setFrame(false);
         cb->setSizePolicy(QSizePolicy::Ignored, cb->sizePolicy().verticalPolicy());
         return cb; }
 #endif
 #if QT_CONFIG(spinbox)
-    case QVariant::UInt: {
+    case QMetaType::UInt: {
         QSpinBox *sb = new QUIntSpinBox(parent);
         sb->setFrame(false);
         sb->setMinimum(0);
         sb->setMaximum(INT_MAX);
         sb->setSizePolicy(QSizePolicy::Ignored, sb->sizePolicy().verticalPolicy());
         return sb; }
-    case QVariant::Int: {
+    case QMetaType::Int: {
         QSpinBox *sb = new QSpinBox(parent);
         sb->setFrame(false);
         sb->setMinimum(INT_MIN);
@@ -264,25 +264,25 @@ QWidget *QDefaultItemEditorFactory::createEditor(int userType, QWidget *parent)
         return sb; }
 #endif
 #if QT_CONFIG(datetimeedit)
-    case QVariant::Date: {
+    case QMetaType::QDate: {
         QDateTimeEdit *ed = new QDateEdit(parent);
         ed->setFrame(false);
         return ed; }
-    case QVariant::Time: {
+    case QMetaType::QTime: {
         QDateTimeEdit *ed = new QTimeEdit(parent);
         ed->setFrame(false);
         return ed; }
-    case QVariant::DateTime: {
+    case QMetaType::QDateTime: {
         QDateTimeEdit *ed = new QDateTimeEdit(parent);
         ed->setFrame(false);
         return ed; }
 #endif
 #if QT_CONFIG(label)
-    case QVariant::Pixmap:
+    case QMetaType::QPixmap:
         return new QLabel(parent);
 #endif
 #if QT_CONFIG(spinbox)
-    case QVariant::Double: {
+    case QMetaType::Double: {
         QDoubleSpinBox *sb = new QDoubleSpinBox(parent);
         sb->setFrame(false);
         sb->setMinimum(-DBL_MAX);
@@ -291,7 +291,7 @@ QWidget *QDefaultItemEditorFactory::createEditor(int userType, QWidget *parent)
         return sb; }
 #endif
 #if QT_CONFIG(lineedit)
-    case QVariant::String:
+    case QMetaType::QString:
     default: {
         // the default editor is a lineedit
         QExpandingLineEdit *le = new QExpandingLineEdit(parent);
@@ -311,24 +311,24 @@ QByteArray QDefaultItemEditorFactory::valuePropertyName(int userType) const
 {
     switch (userType) {
 #if QT_CONFIG(combobox)
-    case QVariant::Bool:
+    case QMetaType::Bool:
         return "currentIndex";
 #endif
 #if QT_CONFIG(spinbox)
-    case QVariant::UInt:
-    case QVariant::Int:
-    case QVariant::Double:
+    case QMetaType::UInt:
+    case QMetaType::Int:
+    case QMetaType::Double:
         return "value";
 #endif
 #if QT_CONFIG(datetimeedit)
-    case QVariant::Date:
+    case QMetaType::QDate:
         return "date";
-    case QVariant::Time:
+    case QMetaType::QTime:
         return "time";
-    case QVariant::DateTime:
+    case QMetaType::QDateTime:
         return "dateTime";
 #endif
-    case QVariant::String:
+    case QMetaType::QString:
     default:
         // the default editor is a lineedit
         return "text";
diff --git a/src/widgets/itemviews/qstyleditemdelegate.cpp b/src/widgets/itemviews/qstyleditemdelegate.cpp
index f42af2ea004..c685cc7f052 100644
--- a/src/widgets/itemviews/qstyleditemdelegate.cpp
+++ b/src/widgets/itemviews/qstyleditemdelegate.cpp
@@ -302,8 +302,8 @@ void QStyledItemDelegate::initStyleOption(QStyleOptionViewItem *option,
     value = index.data(Qt::DecorationRole);
     if (value.isValid() && !value.isNull()) {
         option->features |= QStyleOptionViewItem::HasDecoration;
-        switch (value.type()) {
-        case QVariant::Icon: {
+        switch (value.userType()) {
+        case QMetaType::QIcon: {
             option->icon = qvariant_cast<QIcon>(value);
             QIcon::Mode mode;
             if (!(option->state & QStyle::State_Enabled))
@@ -319,19 +319,19 @@ void QStyledItemDelegate::initStyleOption(QStyleOptionViewItem *option,
                                            qMin(option->decorationSize.height(), actualSize.height()));
             break;
         }
-        case QVariant::Color: {
+        case QMetaType::QColor: {
             QPixmap pixmap(option->decorationSize);
             pixmap.fill(qvariant_cast<QColor>(value));
             option->icon = QIcon(pixmap);
             break;
         }
-        case QVariant::Image: {
+        case QMetaType::QImage: {
             QImage image = qvariant_cast<QImage>(value);
             option->icon = QIcon(QPixmap::fromImage(image));
             option->decorationSize = image.size() / image.devicePixelRatio();
             break;
         }
-        case QVariant::Pixmap: {
+        case QMetaType::QPixmap: {
             QPixmap pixmap = qvariant_cast<QPixmap>(value);
             option->icon = QIcon(pixmap);
             option->decorationSize = pixmap.size() / pixmap.devicePixelRatio();
diff --git a/src/widgets/kernel/qsizepolicy.cpp b/src/widgets/kernel/qsizepolicy.cpp
index 54bf8fe0dc8..c4372a9fbc7 100644
--- a/src/widgets/kernel/qsizepolicy.cpp
+++ b/src/widgets/kernel/qsizepolicy.cpp
@@ -439,7 +439,7 @@ void QSizePolicy::setControlType(ControlType type) noexcept
 */
 QSizePolicy::operator QVariant() const
 {
-    return QVariant(QVariant::SizePolicy, this);
+    return QVariant(QMetaType::QSizePolicy, this);
 }
 
 #ifndef QT_NO_DATASTREAM
diff --git a/src/widgets/kernel/qwidgetsvariant.cpp b/src/widgets/kernel/qwidgetsvariant.cpp
index 41600d21438..edb166e8d5a 100644
--- a/src/widgets/kernel/qwidgetsvariant.cpp
+++ b/src/widgets/kernel/qwidgetsvariant.cpp
@@ -51,12 +51,12 @@ namespace {
 static void construct(QVariant::Private *x, const void *copy)
 {
     switch (x->type) {
-    case QVariant::SizePolicy:
+    case QMetaType::QSizePolicy:
         v_construct<QSizePolicy>(x, copy);
         break;
     default:
         qWarning("Trying to construct an instance of an invalid type, type id: %i", x->type);
-        x->type = QVariant::Invalid;
+        x->type = QMetaType::UnknownType;
         return;
     }
     x->is_null = !copy;
@@ -65,7 +65,7 @@ static void construct(QVariant::Private *x, const void *copy)
 static void clear(QVariant::Private *d)
 {
     switch (d->type) {
-    case QVariant::SizePolicy:
+    case QMetaType::QSizePolicy:
         v_clear<QSizePolicy>(d);
         break;
     default:
@@ -73,7 +73,7 @@ static void clear(QVariant::Private *d)
         return;
     }
 
-    d->type = QVariant::Invalid;
+    d->type = QMetaType::UnknownType;
     d->is_null = true;
     d->is_shared = false;
 }
@@ -88,7 +88,7 @@ static bool compare(const QVariant::Private *a, const QVariant::Private *b)
 {
     Q_ASSERT(a->type == b->type);
     switch(a->type) {
-    case QVariant::SizePolicy:
+    case QMetaType::QSizePolicy:
         return *v_cast<QSizePolicy>(a) == *v_cast<QSizePolicy>(b);
     default:
         Q_ASSERT(false);
@@ -111,7 +111,7 @@ static void streamDebug(QDebug dbg, const QVariant &v)
 {
     QVariant::Private *d = const_cast<QVariant::Private *>(&v.data_ptr());
     switch (d->type) {
-    case QVariant::SizePolicy:
+    case QMetaType::QSizePolicy:
         dbg.nospace() << *v_cast<QSizePolicy>(d);
         break;
     default:
diff --git a/src/widgets/styles/qstylesheetstyle.cpp b/src/widgets/styles/qstylesheetstyle.cpp
index 2eccb244319..1e032b237a9 100644
--- a/src/widgets/styles/qstylesheetstyle.cpp
+++ b/src/widgets/styles/qstylesheetstyle.cpp
@@ -1547,11 +1547,10 @@ public:
                 }
             }
         }
-        QString valueStr;
-        if(value.type() == QVariant::StringList || value.type() == QVariant::List)
-            valueStr = value.toStringList().join(QLatin1Char(' '));
-        else
-            valueStr = value.toString();
+        QString valueStr = (value.userType() == QMetaType::QStringList
+            || value.userType() == QMetaType::QVariantList)
+            ? value.toStringList().join(QLatin1Char(' '))
+            : value.toString();
         cache[name] = valueStr;
         return valueStr;
     }
@@ -2611,16 +2610,16 @@ void QStyleSheetStyle::setProperties(QWidget *w)
 
         QVariant v;
         const QVariant value = w->property(property.toLatin1());
-        switch (value.type()) {
-        case QVariant::Icon: v = decl.iconValue(); break;
-        case QVariant::Image: v = QImage(decl.uriValue()); break;
-        case QVariant::Pixmap: v = QPixmap(decl.uriValue()); break;
-        case QVariant::Rect: v = decl.rectValue(); break;
-        case QVariant::Size: v = decl.sizeValue(); break;
-        case QVariant::Color: v = decl.colorValue(); break;
-        case QVariant::Brush: v = decl.brushValue(); break;
+        switch (value.userType()) {
+        case QMetaType::QIcon: v = decl.iconValue(); break;
+        case QMetaType::QImage: v = QImage(decl.uriValue()); break;
+        case QMetaType::QPixmap: v = QPixmap(decl.uriValue()); break;
+        case QMetaType::QRect: v = decl.rectValue(); break;
+        case QMetaType::QSize: v = decl.sizeValue(); break;
+        case QMetaType::QColor: v = decl.colorValue(); break;
+        case QMetaType::QBrush: v = decl.brushValue(); break;
 #ifndef QT_NO_SHORTCUT
-        case QVariant::KeySequence: v = QKeySequence(decl.d->values.at(0).variant.toString()); break;
+        case QMetaType::QKeySequence: v = QKeySequence(decl.d->values.at(0).variant.toString()); break;
 #endif
         default: v = decl.d->values.at(0).variant; break;
         }
@@ -4648,7 +4647,7 @@ void QStyleSheetStyle::drawPrimitive(PrimitiveElement pe, const QStyleOption *op
     }
 
     if (baseStyle()->property("_q_styleSheetRealCloseButton").toBool())
-        baseStyle()->setProperty("_q_styleSheetRealCloseButton", QVariant(QVariant::Invalid));
+        baseStyle()->setProperty("_q_styleSheetRealCloseButton", QVariant());
 }
 
 QPixmap QStyleSheetStyle::generatedIconPixmap(QIcon::Mode iconMode, const QPixmap& pixmap,
@@ -6128,7 +6127,7 @@ void QStyleSheetStyle::saveWidgetFont(QWidget* w, const QFont& font) const
 
 void QStyleSheetStyle::clearWidgetFont(QWidget* w) const
 {
-    w->setProperty("_q_styleSheetWidgetFont", QVariant(QVariant::Invalid));
+    w->setProperty("_q_styleSheetWidgetFont", QVariant());
 }
 
 // Polish palette that should be used for a particular widget, with particular states
diff --git a/src/widgets/widgets/qabstractspinbox.cpp b/src/widgets/widgets/qabstractspinbox.cpp
index 6a0d2f50199..04176ab5e26 100644
--- a/src/widgets/widgets/qabstractspinbox.cpp
+++ b/src/widgets/widgets/qabstractspinbox.cpp
@@ -570,7 +570,7 @@ void QAbstractSpinBox::clear()
 QAbstractSpinBox::StepEnabled QAbstractSpinBox::stepEnabled() const
 {
     Q_D(const QAbstractSpinBox);
-    if (d->readOnly || d->type == QVariant::Invalid)
+    if (d->readOnly || d->type == QMetaType::UnknownType)
         return StepNone;
     if (d->wrapping)
         return StepEnabled(StepUpEnabled | StepDownEnabled);
@@ -723,7 +723,7 @@ void QAbstractSpinBox::setLineEdit(QLineEdit *lineEdit)
     d->edit->setFocusProxy(this);
     d->edit->setAcceptDrops(false);
 
-    if (d->type != QVariant::Invalid) {
+    if (d->type != QMetaType::UnknownType) {
         connect(d->edit, SIGNAL(textChanged(QString)),
                 this, SLOT(_q_editorTextChanged(QString)));
         connect(d->edit, SIGNAL(cursorPositionChanged(int,int)),
@@ -1421,7 +1421,7 @@ void QAbstractSpinBox::mouseReleaseEvent(QMouseEvent *event)
 */
 
 QAbstractSpinBoxPrivate::QAbstractSpinBoxPrivate()
-    : edit(nullptr), type(QVariant::Invalid), spinClickTimerId(-1),
+    : edit(nullptr), type(QMetaType::UnknownType), spinClickTimerId(-1),
       spinClickTimerInterval(100), spinClickThresholdTimerId(-1), spinClickThresholdTimerInterval(-1),
       effectiveSpinRepeatRate(1), buttonState(None), cachedText(QLatin1String("\x01")),
       cachedState(QValidator::Invalid), pendingEmit(false), readOnly(false), wrapping(false),
@@ -1805,7 +1805,7 @@ void QAbstractSpinBoxPrivate::setValue(const QVariant &val, EmitPolicy ep,
 void QAbstractSpinBoxPrivate::updateEdit()
 {
     Q_Q(QAbstractSpinBox);
-    if (type == QVariant::Invalid)
+    if (type == QMetaType::UnknownType)
         return;
     const QString newText = specialValue() ? specialValueText : prefix + textFromValue(value) + suffix;
     if (newText == edit->displayText() || cleared)
@@ -1865,8 +1865,8 @@ QVariant QAbstractSpinBoxPrivate::getZeroVariant() const
 {
     QVariant ret;
     switch (type) {
-    case QVariant::Int: ret = QVariant((int)0); break;
-    case QVariant::Double: ret = QVariant((double)0.0); break;
+    case QMetaType::Int: ret = QVariant(0); break;
+    case QMetaType::Double: ret = QVariant(0.0); break;
     default: break;
     }
     return ret;
@@ -1913,7 +1913,7 @@ QVariant QAbstractSpinBoxPrivate::valueFromText(const QString &) const
 void QAbstractSpinBoxPrivate::interpret(EmitPolicy ep)
 {
     Q_Q(QAbstractSpinBox);
-    if (type == QVariant::Invalid || cleared)
+    if (type == QMetaType::UnknownType || cleared)
         return;
 
     QVariant v = getZeroVariant();
@@ -2013,11 +2013,11 @@ void QSpinBoxValidator::fixup(QString &input) const
 QVariant operator+(const QVariant &arg1, const QVariant &arg2)
 {
     QVariant ret;
-    if (Q_UNLIKELY(arg1.type() != arg2.type()))
+    if (Q_UNLIKELY(arg1.userType() != arg2.userType()))
         qWarning("QAbstractSpinBox: Internal error: Different types (%s vs %s) (%s:%d)",
                  arg1.typeName(), arg2.typeName(), __FILE__, __LINE__);
-    switch (arg1.type()) {
-    case QVariant::Int: {
+    switch (arg1.userType()) {
+    case QMetaType::Int: {
         const int int1 = arg1.toInt();
         const int int2 = arg2.toInt();
         if (int1 > 0 && (int2 >= INT_MAX - int1)) {
@@ -2031,9 +2031,9 @@ QVariant operator+(const QVariant &arg1, const QVariant &arg2)
         }
         break;
     }
-    case QVariant::Double: ret = QVariant(arg1.toDouble() + arg2.toDouble()); break;
+    case QMetaType::Double: ret = QVariant(arg1.toDouble() + arg2.toDouble()); break;
 #if QT_CONFIG(datetimeparser)
-    case QVariant::DateTime: {
+    case QMetaType::QDateTime: {
         QDateTime a2 = arg2.toDateTime();
         QDateTime a1 = arg1.toDateTime().addDays(QDATETIMEEDIT_DATE_MIN.daysTo(a2.date()));
         a1.setTime(a1.time().addMSecs(a2.time().msecsSinceStartOfDay()));
@@ -2055,13 +2055,13 @@ QVariant operator+(const QVariant &arg1, const QVariant &arg2)
 QVariant operator-(const QVariant &arg1, const QVariant &arg2)
 {
     QVariant ret;
-    if (Q_UNLIKELY(arg1.type() != arg2.type()))
+    if (Q_UNLIKELY(arg1.userType() != arg2.userType()))
         qWarning("QAbstractSpinBox: Internal error: Different types (%s vs %s) (%s:%d)",
                  arg1.typeName(), arg2.typeName(), __FILE__, __LINE__);
-    switch (arg1.type()) {
-    case QVariant::Int: ret = QVariant(arg1.toInt() - arg2.toInt()); break;
-    case QVariant::Double: ret = QVariant(arg1.toDouble() - arg2.toDouble()); break;
-    case QVariant::DateTime: {
+    switch (arg1.userType()) {
+    case QMetaType::Int: ret = QVariant(arg1.toInt() - arg2.toInt()); break;
+    case QMetaType::Double: ret = QVariant(arg1.toDouble() - arg2.toDouble()); break;
+    case QMetaType::QDateTime: {
         QDateTime a1 = arg1.toDateTime();
         QDateTime a2 = arg2.toDateTime();
         int days = a2.daysTo(a1);
@@ -2090,13 +2090,13 @@ QVariant operator*(const QVariant &arg1, double multiplier)
 {
     QVariant ret;
 
-    switch (arg1.type()) {
-    case QVariant::Int:
+    switch (arg1.userType()) {
+    case QMetaType::Int:
         ret = static_cast<int>(qBound<double>(INT_MIN, arg1.toInt() * multiplier, INT_MAX));
         break;
-    case QVariant::Double: ret = QVariant(arg1.toDouble() * multiplier); break;
+    case QMetaType::Double: ret = QVariant(arg1.toDouble() * multiplier); break;
 #if QT_CONFIG(datetimeparser)
-    case QVariant::DateTime: {
+    case QMetaType::QDateTime: {
         double days = QDATETIMEEDIT_DATE_MIN.daysTo(arg1.toDateTime().date()) * multiplier;
         const qint64 daysInt = qint64(days);
         days -= daysInt;
@@ -2119,17 +2119,17 @@ double operator/(const QVariant &arg1, const QVariant &arg2)
     double a1 = 0;
     double a2 = 0;
 
-    switch (arg1.type()) {
-    case QVariant::Int:
+    switch (arg1.userType()) {
+    case QMetaType::Int:
         a1 = (double)arg1.toInt();
         a2 = (double)arg2.toInt();
         break;
-    case QVariant::Double:
+    case QMetaType::Double:
         a1 = arg1.toDouble();
         a2 = arg2.toDouble();
         break;
 #if QT_CONFIG(datetimeparser)
-    case QVariant::DateTime:
+    case QMetaType::QDateTime:
         a1 = QDATETIMEEDIT_DATE_MIN.daysTo(arg1.toDate());
         a2 = QDATETIMEEDIT_DATE_MIN.daysTo(arg2.toDate());
         a1 += arg1.toDateTime().time().msecsSinceStartOfDay() / (36e5 * 24);
@@ -2144,9 +2144,9 @@ double operator/(const QVariant &arg1, const QVariant &arg2)
 
 int QAbstractSpinBoxPrivate::variantCompare(const QVariant &arg1, const QVariant &arg2)
 {
-    switch (arg2.type()) {
-    case QVariant::Date:
-        Q_ASSERT_X(arg1.type() == QVariant::Date, "QAbstractSpinBoxPrivate::variantCompare",
+    switch (arg2.userType()) {
+    case QMetaType::QDate:
+        Q_ASSERT_X(arg1.userType() == QMetaType::QDate, "QAbstractSpinBoxPrivate::variantCompare",
                    qPrintable(QString::fromLatin1("Internal error 1 (%1)").
                               arg(QString::fromLatin1(arg1.typeName()))));
         if (arg1.toDate() == arg2.toDate()) {
@@ -2156,8 +2156,8 @@ int QAbstractSpinBoxPrivate::variantCompare(const QVariant &arg1, const QVariant
         } else {
             return 1;
         }
-    case QVariant::Time:
-        Q_ASSERT_X(arg1.type() == QVariant::Time, "QAbstractSpinBoxPrivate::variantCompare",
+    case QMetaType::QTime:
+        Q_ASSERT_X(arg1.userType() == QMetaType::QTime, "QAbstractSpinBoxPrivate::variantCompare",
                    qPrintable(QString::fromLatin1("Internal error 2 (%1)").
                               arg(QString::fromLatin1(arg1.typeName()))));
         if (arg1.toTime() == arg2.toTime()) {
@@ -2169,7 +2169,7 @@ int QAbstractSpinBoxPrivate::variantCompare(const QVariant &arg1, const QVariant
         }
 
 
-    case QVariant::DateTime:
+    case QMetaType::QDateTime:
         if (arg1.toDateTime() == arg2.toDateTime()) {
             return 0;
         } else if (arg1.toDateTime() < arg2.toDateTime()) {
@@ -2177,7 +2177,7 @@ int QAbstractSpinBoxPrivate::variantCompare(const QVariant &arg1, const QVariant
         } else {
             return 1;
         }
-    case QVariant::Int:
+    case QMetaType::Int:
         if (arg1.toInt() == arg2.toInt()) {
             return 0;
         } else if (arg1.toInt() < arg2.toInt()) {
@@ -2185,7 +2185,7 @@ int QAbstractSpinBoxPrivate::variantCompare(const QVariant &arg1, const QVariant
         } else {
             return 1;
         }
-    case QVariant::Double:
+    case QMetaType::Double:
         if (arg1.toDouble() == arg2.toDouble()) {
             return 0;
         } else if (arg1.toDouble() < arg2.toDouble()) {
@@ -2193,8 +2193,8 @@ int QAbstractSpinBoxPrivate::variantCompare(const QVariant &arg1, const QVariant
         } else {
             return 1;
         }
-    case QVariant::Invalid:
-        if (arg2.type() == QVariant::Invalid)
+    case QMetaType::UnknownType:
+        if (arg2.userType() == QMetaType::UnknownType)
             return 0;
         Q_FALLTHROUGH();
     default:
diff --git a/src/widgets/widgets/qabstractspinbox_p.h b/src/widgets/widgets/qabstractspinbox_p.h
index ad169fde199..63b19c7317f 100644
--- a/src/widgets/widgets/qabstractspinbox_p.h
+++ b/src/widgets/widgets/qabstractspinbox_p.h
@@ -127,7 +127,7 @@ public:
     QLineEdit *edit;
     QString prefix, suffix, specialValueText;
     QVariant value, minimum, maximum, singleStep;
-    QVariant::Type type;
+    QMetaType::Type type;
     int spinClickTimerId, spinClickTimerInterval, spinClickThresholdTimerId, spinClickThresholdTimerInterval;
     int effectiveSpinRepeatRate;
     uint buttonState;
diff --git a/src/widgets/widgets/qcombobox.cpp b/src/widgets/widgets/qcombobox.cpp
index d786c7ff83b..9826cabe50d 100644
--- a/src/widgets/widgets/qcombobox.cpp
+++ b/src/widgets/widgets/qcombobox.cpp
@@ -144,11 +144,11 @@ QStyleOptionMenuItem QComboMenuDelegate::getStyleOption(const QStyleOptionViewIt
         menuOption.menuItemType = QStyleOptionMenuItem::Normal;
 
     QVariant variant = index.model()->data(index, Qt::DecorationRole);
-    switch (variant.type()) {
-    case QVariant::Icon:
+    switch (variant.userType()) {
+    case QMetaType::QIcon:
         menuOption.icon = qvariant_cast<QIcon>(variant);
         break;
-    case QVariant::Color: {
+    case QMetaType::QColor: {
         static QPixmap pixmap(option.decorationSize);
         pixmap.fill(qvariant_cast<QColor>(variant));
         menuOption.icon = pixmap;
@@ -1888,7 +1888,7 @@ void QComboBoxPrivate::updateDelegate(bool force)
 QIcon QComboBoxPrivate::itemIcon(const QModelIndex &index) const
 {
     QVariant decoration = model->data(index, Qt::DecorationRole);
-    if (decoration.type() == QVariant::Pixmap)
+    if (decoration.userType() == QMetaType::QPixmap)
         return QIcon(qvariant_cast<QPixmap>(decoration));
     else
         return qvariant_cast<QIcon>(decoration);
diff --git a/src/widgets/widgets/qdatetimeedit.cpp b/src/widgets/widgets/qdatetimeedit.cpp
index 5f415aca425..63d5ae268e2 100644
--- a/src/widgets/widgets/qdatetimeedit.cpp
+++ b/src/widgets/widgets/qdatetimeedit.cpp
@@ -195,11 +195,19 @@ QDateTimeEdit::QDateTimeEdit(const QTime &time, QWidget *parent)
     d->init(time.isValid() ? time : QDATETIMEEDIT_TIME_MIN);
 }
 
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
 /*!
   \internal
 */
-
 QDateTimeEdit::QDateTimeEdit(const QVariant &var, QVariant::Type parserType, QWidget *parent)
+    : QDateTimeEdit(var, QMetaType::Type(parserType), parent)
+{ }
+/*!
+  \internal
+*/
+#endif
+
+QDateTimeEdit::QDateTimeEdit(const QVariant &var, QMetaType::Type parserType, QWidget *parent)
     : QAbstractSpinBox(*new QDateTimeEditPrivate, parent)
 {
     Q_D(QDateTimeEdit);
@@ -1564,7 +1572,7 @@ void QDateTimeEdit::mousePressEvent(QMouseEvent *event)
 
 
 QTimeEdit::QTimeEdit(QWidget *parent)
-    : QDateTimeEdit(QDATETIMEEDIT_TIME_MIN, QVariant::Time, parent)
+    : QDateTimeEdit(QDATETIMEEDIT_TIME_MIN, QMetaType::QTime, parent)
 {
     connect(this, &QTimeEdit::timeChanged, this, &QTimeEdit::userTimeChanged);
 }
@@ -1575,7 +1583,7 @@ QTimeEdit::QTimeEdit(QWidget *parent)
 */
 
 QTimeEdit::QTimeEdit(const QTime &time, QWidget *parent)
-    : QDateTimeEdit(time, QVariant::Time, parent)
+    : QDateTimeEdit(time, QMetaType::QTime, parent)
 {
     connect(this, &QTimeEdit::timeChanged, this, &QTimeEdit::userTimeChanged);
 }
@@ -1634,7 +1642,7 @@ QTimeEdit::~QTimeEdit()
 */
 
 QDateEdit::QDateEdit(QWidget *parent)
-    : QDateTimeEdit(QDATETIMEEDIT_DATE_INITIAL, QVariant::Date, parent)
+    : QDateTimeEdit(QDATETIMEEDIT_DATE_INITIAL, QMetaType::QDate, parent)
 {
     connect(this, &QDateEdit::dateChanged, this, &QDateEdit::userDateChanged);
 }
@@ -1645,7 +1653,7 @@ QDateEdit::QDateEdit(QWidget *parent)
 */
 
 QDateEdit::QDateEdit(const QDate &date, QWidget *parent)
-    : QDateTimeEdit(date, QVariant::Date, parent)
+    : QDateTimeEdit(date, QMetaType::QDate, parent)
 {
     connect(this, &QDateEdit::dateChanged, this, &QDateEdit::userDateChanged);
 }
@@ -1682,13 +1690,13 @@ QDateEdit::~QDateEdit()
 
 
 QDateTimeEditPrivate::QDateTimeEditPrivate()
-    : QDateTimeParser(QVariant::DateTime, QDateTimeParser::DateTimeEdit, QCalendar())
+    : QDateTimeParser(QMetaType::QDateTime, QDateTimeParser::DateTimeEdit, QCalendar())
 {
     hasHadFocus = false;
     formatExplicitlySet = false;
     cacheGuard = false;
     fixday = true;
-    type = QVariant::DateTime;
+    type = QMetaType::QDateTime;
     sections = { };
     cachedDay = -1;
     currentSectionIndex = FirstSectionIndex;
@@ -2430,22 +2438,22 @@ void QDateTimeEdit::initStyleOption(QStyleOptionSpinBox *option) const
 void QDateTimeEditPrivate::init(const QVariant &var)
 {
     Q_Q(QDateTimeEdit);
-    switch (var.type()) {
-    case QVariant::Date:
+    switch (var.userType()) {
+    case QMetaType::QDate:
         value = var.toDate().startOfDay();
         updateTimeSpec();
         q->setDisplayFormat(defaultDateFormat);
         if (sectionNodes.isEmpty()) // ### safeguard for broken locale
             q->setDisplayFormat(QLatin1String("dd/MM/yyyy"));
         break;
-    case QVariant::DateTime:
+    case QMetaType::QDateTime:
         value = var;
         updateTimeSpec();
         q->setDisplayFormat(defaultDateTimeFormat);
         if (sectionNodes.isEmpty()) // ### safeguard for broken locale
             q->setDisplayFormat(QLatin1String("dd/MM/yyyy hh:mm:ss"));
         break;
-    case QVariant::Time:
+    case QMetaType::QTime:
         value = QDateTime(QDATETIMEEDIT_DATE_INITIAL, var.toTime());
         updateTimeSpec();
         q->setDisplayFormat(defaultTimeFormat);
@@ -2524,7 +2532,7 @@ void QDateTimeEditPrivate::updateEditFieldGeometry()
 
 QVariant QDateTimeEditPrivate::getZeroVariant() const
 {
-    Q_ASSERT(type == QVariant::DateTime);
+    Q_ASSERT(type == QMetaType::QDateTime);
     return QDateTime(QDATETIMEEDIT_DATE_INITIAL, QTime(), spec);
 }
 
diff --git a/src/widgets/widgets/qdatetimeedit.h b/src/widgets/widgets/qdatetimeedit.h
index 03994675ae1..8905ad4a9ca 100644
--- a/src/widgets/widgets/qdatetimeedit.h
+++ b/src/widgets/widgets/qdatetimeedit.h
@@ -195,7 +195,10 @@ protected:
     void paintEvent(QPaintEvent *event) override;
     void initStyleOption(QStyleOptionSpinBox *option) const;
 
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
     QDateTimeEdit(const QVariant &val, QVariant::Type parserType, QWidget *parent = nullptr);
+#endif
+    QDateTimeEdit(const QVariant &val, QMetaType::Type parserType, QWidget *parent = nullptr);
 private:
     Q_DECLARE_PRIVATE(QDateTimeEdit)
     Q_DISABLE_COPY(QDateTimeEdit)
diff --git a/src/widgets/widgets/qplaintextedit.cpp b/src/widgets/widgets/qplaintextedit.cpp
index d54c0d0b20d..87e8af13825 100644
--- a/src/widgets/widgets/qplaintextedit.cpp
+++ b/src/widgets/widgets/qplaintextedit.cpp
@@ -2250,17 +2250,17 @@ QVariant QPlainTextEdit::inputMethodQuery(Qt::InputMethodQuery query, QVariant a
     }
 
     const QPointF offset = contentOffset();
-    switch (argument.type()) {
-    case QVariant::RectF:
+    switch (argument.userType()) {
+    case QMetaType::QRectF:
         argument = argument.toRectF().translated(-offset);
         break;
-    case QVariant::PointF:
+    case QMetaType::QPointF:
         argument = argument.toPointF() - offset;
         break;
-    case QVariant::Rect:
+    case QMetaType::QRect:
         argument = argument.toRect().translated(-offset.toPoint());
         break;
-    case QVariant::Point:
+    case QMetaType::QPoint:
         argument = argument.toPoint() - offset;
         break;
     default:
@@ -2268,14 +2268,14 @@ QVariant QPlainTextEdit::inputMethodQuery(Qt::InputMethodQuery query, QVariant a
     }
 
     const QVariant v = d->control->inputMethodQuery(query, argument);
-    switch (v.type()) {
-    case QVariant::RectF:
+    switch (v.userType()) {
+    case QMetaType::QRectF:
         return v.toRectF().translated(offset);
-    case QVariant::PointF:
+    case QMetaType::QPointF:
         return v.toPointF() + offset;
-    case QVariant::Rect:
+    case QMetaType::QRect:
         return v.toRect().translated(offset.toPoint());
-    case QVariant::Point:
+    case QMetaType::QPoint:
         return v.toPoint() + offset.toPoint();
     default:
         break;
diff --git a/src/widgets/widgets/qspinbox.cpp b/src/widgets/widgets/qspinbox.cpp
index 61ea81c8925..08428f673ed 100644
--- a/src/widgets/widgets/qspinbox.cpp
+++ b/src/widgets/widgets/qspinbox.cpp
@@ -1081,7 +1081,7 @@ QSpinBoxPrivate::QSpinBoxPrivate()
     value = minimum;
     displayIntegerBase = 10;
     singleStep = QVariant((int)1);
-    type = QVariant::Int;
+    type = QMetaType::Int;
 }
 
 /*!
@@ -1238,7 +1238,7 @@ QDoubleSpinBoxPrivate::QDoubleSpinBoxPrivate()
     value = minimum;
     singleStep = QVariant(1.0);
     decimals = 2;
-    type = QVariant::Double;
+    type = QMetaType::Double;
 }
 
 /*!
diff --git a/src/widgets/widgets/qtextbrowser.cpp b/src/widgets/widgets/qtextbrowser.cpp
index d0ccd435b35..0ba74a20e0c 100644
--- a/src/widgets/widgets/qtextbrowser.cpp
+++ b/src/widgets/widgets/qtextbrowser.cpp
@@ -310,9 +310,9 @@ void QTextBrowserPrivate::setSource(const QUrl &url, QTextDocument::ResourceType
     if (url.isValid()
         && (newUrlWithoutFragment != currentUrlWithoutFragment || forceLoadOnSourceChange)) {
         QVariant data = q->loadResource(type, resolveUrl(url));
-        if (data.type() == QVariant::String) {
+        if (data.userType() == QMetaType::QString) {
             txt = data.toString();
-        } else if (data.type() == QVariant::ByteArray) {
+        } else if (data.userType() == QMetaType::QByteArray) {
             if (type == QTextDocument::HtmlResource) {
 #if QT_CONFIG(textcodec)
                 QByteArray ba = data.toByteArray();
diff --git a/src/widgets/widgets/qtextedit.cpp b/src/widgets/widgets/qtextedit.cpp
index 10de7d0b9e3..913ca6ec164 100644
--- a/src/widgets/widgets/qtextedit.cpp
+++ b/src/widgets/widgets/qtextedit.cpp
@@ -1502,7 +1502,7 @@ void QTextEdit::resizeEvent(QResizeEvent *e)
         QVariant alignmentProperty = doc->documentLayout()->property("contentHasAlignment");
 
         if (!doc->pageSize().isNull()
-            && alignmentProperty.type() == QVariant::Bool
+            && alignmentProperty.userType() == QMetaType::Bool
             && !alignmentProperty.toBool()) {
 
             d->_q_adjustScrollbars();
@@ -1547,7 +1547,7 @@ void QTextEditPrivate::relayoutDocument()
         width = lineWrapColumnOrWidth;
     else if (lineWrap == QTextEdit::NoWrap) {
         QVariant alignmentProperty = doc->documentLayout()->property("contentHasAlignment");
-        if (alignmentProperty.type() == QVariant::Bool && !alignmentProperty.toBool()) {
+        if (alignmentProperty.userType() == QMetaType::Bool && !alignmentProperty.toBool()) {
 
             width = 0;
         }
@@ -1835,17 +1835,17 @@ QVariant QTextEdit::inputMethodQuery(Qt::InputMethodQuery query, QVariant argume
     }
 
     const QPointF offset(-d->horizontalOffset(), -d->verticalOffset());
-    switch (argument.type()) {
-    case QVariant::RectF:
+    switch (argument.userType()) {
+    case QMetaType::QRectF:
         argument = argument.toRectF().translated(-offset);
         break;
-    case QVariant::PointF:
+    case QMetaType::QPointF:
         argument = argument.toPointF() - offset;
         break;
-    case QVariant::Rect:
+    case QMetaType::QRect:
         argument = argument.toRect().translated(-offset.toPoint());
         break;
-    case QVariant::Point:
+    case QMetaType::QPoint:
         argument = argument.toPoint() - offset;
         break;
     default:
@@ -1853,14 +1853,14 @@ QVariant QTextEdit::inputMethodQuery(Qt::InputMethodQuery query, QVariant argume
     }
 
     const QVariant v = d->control->inputMethodQuery(query, argument);
-    switch (v.type()) {
-    case QVariant::RectF:
+    switch (v.userType()) {
+    case QMetaType::QRectF:
         return v.toRectF().translated(offset);
-    case QVariant::PointF:
+    case QMetaType::QPointF:
         return v.toPointF() + offset;
-    case QVariant::Rect:
+    case QMetaType::QRect:
         return v.toRect().translated(offset.toPoint());
-    case QVariant::Point:
+    case QMetaType::QPoint:
         return v.toPoint() + offset.toPoint();
     default:
         break;