create_context

Creates a `GtkCellArea`Context to be used with this for all purposes.

`GtkCellArea`Context stores geometry information for rows for which it was operated on, it is important to use the same context for the same row of data at all times (i.e. one should render and handle events with the same `GtkCellArea`Context which was used to request the size of those rows of data).

Parameters:

this	a `GtkCellArea`

Returns:

a newly created `GtkCellArea`Context which can be used with this.