gtktreeview: highlighting a cell

[Allin Cottrell <cottrell wfu edu>]

I'm using GtkTreeView to implement a simple spreadsheet.

With GTK 2, if use gtk_tree_view_set_cursor() to place keyboard focus 
on a given cell, with the last argument set to FALSE so that editing 
mode is not entered immediately, I get a visual indication of which 
cell is focused. It's fairly subtle, but a gray box is drawn around 
the cell content.

Using the same code with GTK 3, I'm getting no such visual indication. 
The cell is focused OK -- pressing Enter starts editing -- but you get 
no visual clue as to which cell has focus. Is there any way to emulate 
the GTK 2 behavior?

(In this comparison I'm using the Adwaita theme with gtk 2.24.25 and 
3.14.5.)

Thanks for any guidance.

--
Allin Cottrell
Department of Economics
Wake Forest University, NC