Packs the @cell into the beginning of the column. If @expand is %FALSE, then the @cell is allocated no more space than it needs. Any unused space is divided evenly between cells for which @expand is %TRUE.
The #GtkCellRenderer.
%TRUE if @cell is to be given extra space allocated to @tree_column.
See Implementation
Packs the @cell into the beginning of the column. If @expand is %FALSE, then the @cell is allocated no more space than it needs. Any unused space is divided evenly between cells for which @expand is %TRUE.