gtk:cell-area-foreach-alloc (area context widget cell background func)

area -- a gtk:cell-area object
context -- a gtk:cell-area-context object
widget -- a gtk:widget object that area is rendering to
cell -- a gdk:rectangle instance with the relative coordinates and size of widget for rendering area
background -- a gdk:rectangle instance with the relative coordinates of the background for rendering area
func -- a gtk:cell-alloc-callback callback function

Calls the callback function for every gtk:cell-renderer object in the cell area with the allocated rectangle inside cell.