pub trait CellLayoutImplExt: ObjectSubclass {
fn parent_add_attribute<R: IsA<CellRenderer>>(
&self,
cell: &R,
attribute: &str,
column: i32
);
fn parent_clear_attributes<R: IsA<CellRenderer>>(&self, cell: &R);
fn parent_cells(&self) -> Vec<CellRenderer>;
fn parent_set_cell_data_func<R: IsA<CellRenderer>>(
&self,
cell: &R,
callback: Option<CellLayoutDataCallback>
);
fn parent_reorder<R: IsA<CellRenderer>>(&self, cell: &R, position: i32);
fn parent_clear(&self);
fn parent_pack_start<R: IsA<CellRenderer>>(&self, cell: &R, expand: bool);
fn parent_pack_end<R: IsA<CellRenderer>>(&self, cell: &R, expand: bool);
fn parent_area(&self) -> Option<CellArea>;
}