Added QAbstractItemModelPrivate::canConvertToDouble().

And changed QTreeWidgetItem::operator<() and
QTableWidgetItem::operator<() to use it

Merge-request: 631
Reviewed-by: Olivier Goffart <ogoffart@trolltech.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/corelib/kernel/qabstractitemmodel_p.h b/src/corelib/kernel/qabstractitemmodel_p.h
index 27f1b2824f..70c35cba05 100644
--- a/src/corelib/kernel/qabstractitemmodel_p.h
+++ b/src/corelib/kernel/qabstractitemmodel_p.h
@@ -89,6 +89,7 @@ public:
     void columnsAboutToBeRemoved(const QModelIndex &parent, int first, int last);
     void columnsRemoved(const QModelIndex &parent, int first, int last);
     static QAbstractItemModel *staticEmptyModel();
+    static bool canConvertToDouble(const QVariant &value);
 
     inline QModelIndex createIndex(int row, int column, void *data = 0) const {
         return q_func()->createIndex(row, column, data);