Delegates event handling to a #GtkCellArea.
the #GtkCellAreaContext for this row of data.
the #GtkWidget that @area is rendering to
the #GdkEvent to handle
the @widget relative coordinates for @area
the #GtkCellRendererState for @area in this row.
%TRUE if the event was handled by @area.
See Implementation
Delegates event handling to a #GtkCellArea.