Calculates the minimum and natural width
for the area if the passed @context would be allocated the given
height. The same as GtkCellAreaClass.get_preferred_height_for_width()
only for handling requests in the gtk.types.SizeRequestMode.WidthForHeight
mode.
Calculates the minimum and natural width for the area if the passed @context would be allocated the given height. The same as GtkCellAreaClass.get_preferred_height_for_width() only for handling requests in the gtk.types.SizeRequestMode.WidthForHeight mode.