void onSortRoleChanged(const QByteArray& current, const QByteArray& previous, bool resortItems = true) override;
void onSortOrderChanged(Qt::SortOrder current, Qt::SortOrder previous) override;
void onSortRoleChanged(const QByteArray& current, const QByteArray& previous, bool resortItems = true) override;
void onSortOrderChanged(Qt::SortOrder current, Qt::SortOrder previous) override;