+ virtual wxDataViewItem DoGetCurrentItem() const;
+ virtual void DoSetCurrentItem(const wxDataViewItem& item);
+
+ // Return wxDataViewColumn matching the given GtkTreeViewColumn.
+ //
+ // If the input argument is NULL, return NULL too. Otherwise we must find
+ // the matching column and assert if we didn't.
+ wxDataViewColumn* FromGTKColumn(GtkTreeViewColumn *gtk_col) const;
+