Calls callback for every gtk.cell_renderer.CellRenderer in area with the allocated rectangle inside cell_area.
the gtk.cell_area.CellAreaContext for this row of data.
the gtk.widget.Widget that area is rendering to
the widget relative coordinates and size for area
the widget relative coordinates of the background area
the gtk.types.CellAllocCallback to call
Calls callback for every gtk.cell_renderer.CellRenderer in area with the allocated rectangle inside cell_area.