gtk:cell-view-size-of-row (cellview path)

cellview -- a gtk:cell-view widget
path -- a gtk:tree-path instance

Returns the size needed by the cell view to display the model row pointed to by path. The gtk:cell-view-size-of-row function has been deprecated since version 3.0 and should not be used in newly written code. The combo box formerly used this to calculate the sizes for cell views, now you can achieve this by either using the fit-model property or by setting the currently displayed row of the gtk:cell-view widget and using the gtk:widget-preferred-size function.