Sets the cell renderer based on the @tree_model and @iter. That is, for
every attribute mapping in @tree_column, it will get a value from the set
column on the @iter, and use that value to set the attribute on the cell
renderer. This is used primarily by the GtkTreeView.
Sets the cell renderer based on the @tree_model and @iter. That is, for every attribute mapping in @tree_column, it will get a value from the set column on the @iter, and use that value to set the attribute on the cell renderer. This is used primarily by the GtkTreeView.