QML enums should be 'strong'

#include <QGuiApplication>
#include <QQuickView>
#include <QDebug>

class Something : public QObject
{
    Q_OBJECT
    Q_PROPERTY(Qt::SortOrder sortOrder READ sortOrder WRITE setSortOrder  NOTIFY sortOrderChanged)
public:
    Something(QObject* = 0)
    {
    }

    void setSortOrder(Qt::SortOrder sortOrder)
    {
      qDebug() << "setSortOrder" << sortOrder;
      if (mSortOrder != sortOrder)
      {
        mSortOrder = sortOrder;
        Q_EMIT sortOrderChanged();
      }
    }

    Qt::SortOrder sortOrder() const
    {
      return mSortOrder;
    }

Q_SIGNALS:
  void sortOrderChanged();

private:
    mutable Qt::SortOrder mSortOrder;
};

int main(int argc, char** argv)
{
    QGuiApplication app(argc, argv);

    qmlRegisterType<Something>("Things", 1, 0, "Something");

    QQuickView view;
    view.setSource(QUrl("main.qml"));
    view.show();

    return app.exec();
}

#include "main.moc"

import QtQuick 2.3

import Things 1.0

Rectangle {
    id: root
    width: 560
    height: 360

    Something {
        id: st
    }

    Component.onCompleted: {
        st.sortOrder = Qt.AscendingOrder;
        st.sortOrder = Qt.DescendingOrder;
        st.sortOrder = Qt.RelativeSize;
        st.sortOrder = Qt.AutoText;
        st.sortOrder = 7;
    }
}

setSortOrder Qt::SortOrder(AscendingOrder)
setSortOrder Qt::SortOrder(DescendingOrder)
setSortOrder Qt::SortOrder(DescendingOrder)
setSortOrder Qt::SortOrder(2)
setSortOrder Qt::SortOrder(7)