gtk:cell-layout-set-cell-data-func (layout cell func)

layout -- a gtk:cell-layout object
cell -- a gtk:cell-renderer object
func -- a gtk:cell-layout-data-func callback function to use, or nil

Sets the callback function to use for layout. This function is used instead of the standard attributes mapping for setting the column value, and should set the value of layout's cell renderer(s) as appropriate. The func callback function may be nil to remove a previously set function. The gtk:cell-layout implementation is deprecated since 4.10. Please do not use it in newly written code.