1 files changed, 5 insertions, 1 deletions
diff --git a/src/gui/itemviews/qtreeview_p.h b/src/gui/itemviews/qtreeview_p.h
index b6d84586ee..a9dc452398 100644
--- a/src/gui/itemviews/qtreeview_p.h
+++ b/src/gui/itemviews/qtreeview_p.h
@@ -78,7 +78,7 @@ struct QTreeViewItem
 
 Q_DECLARE_TYPEINFO(QTreeViewItem, Q_MOVABLE_TYPE);
 
-class QTreeViewPrivate : public QAbstractItemViewPrivate
+class Q_GUI_EXPORT QTreeViewPrivate : public QAbstractItemViewPrivate
 {
     Q_DECLARE_PUBLIC(QTreeView)
 public:
@@ -223,6 +223,10 @@ public:
     inline void invalidateHeightCache(int item) const
         { viewItems[item].height = 0; }
 
+    inline int accessibleTable2Index(const QModelIndex &index) const {
+        return (viewIndex(index) + (header ? 1 : 0)) * model->columnCount()+index.column() + 1;
+    }
+
     // used for spanning rows
     QVector<QPersistentModelIndex> spanningIndexes;