gtk-cell-layout-pack-start (layout cell &key expand)

layout -- a gtk-cell-layout object
cell -- a gtk-cell-renderer object
expand -- true if cell is to be given extra space allocated to layout

Packs cell into the beginning of layout. If the keyword argument expand is false, then cell is allocated no more space than it needs. Any unused space is divided evenly between cells for which expand is true. The default value of the keyword argument expand is true.

Note that reusing the same cell renderer is not supported.