public virtual void get_preferred_height_for_width (CellAreaContext context, Widget widget, int width, out int minimum_height, out int natural_height)
Retrieves a cell area’s minimum and natural height if it would be given the specified
this stores some geometrical information in
context along the way while calling
get_preferred_width. It’s important to perform a series
of get_preferred_width requests with
first and then call get_preferred_height_for_width on each cell area individually to get the height for
width of each fully requested row.
the CellAreaContext which has already been requested for widths.
the Widget where this will be rendering
the width for which to check the height of this area
location to store the minimum height, or null
location to store the natural height, or null