Returns whether the gtk.cell_area.CellArea can respond to
GtkCellAreaClass.activate(), usually this does not need to be
implemented since the base class takes care of this however it can
be enhanced if the gtk.cell_area.CellArea subclass can handle activation in
other ways than activating its GtkCellRenderers.
Returns whether the gtk.cell_area.CellArea can respond to GtkCellAreaClass.activate(), usually this does not need to be implemented since the base class takes care of this however it can be enhanced if the gtk.cell_area.CellArea subclass can handle activation in other ways than activating its GtkCellRenderers.