Our segmentation rules editor Ensis is initially written with 3 user interfaces:

• Swing for JRuby
• .NET forms for IronRuby
• GTk for CRuby

However the CRuby/Gtk version was written for GTk 2, which becomes now less and less frequent in major Linux distributions. So, porting to Gtk3 appears potentially useful.

A first test shows that the interface to test segmentation rules already works with Gtk3 but porting the editor part would take more time and is actually ongoing.