a #GtkTreePath
return location for the size
true
Deprecated: Combo box formerly used this to calculate the sizes for cellviews, now you can achieve this by either using the #GtkCellView:fit-model property or by setting the currently displayed row of the #GtkCellView and using gtk.widget.Widget.getPreferredSize.
Sets requisition to the size needed by cell_view to display the model row pointed to by path.