ListViewText

I have reluctantly added ListViewText to gtkmm 2.9/2.10 in CVS. It’s a very simple TreeView specialization that allows only text values, and doesn’t allow children, similar to ComboBoxText and ComboBoxEntryText. Thanks to J. Baltasar García Perez-Schofield, who implemented it.

I’m quite sure that this would be useless or awkward in most real-life situations, because you so often need to associate secondary non-text data with each item, but it’s probably good enough for some simple lists, and it does reassure people who are initially scared by the more capable TreeView API, though that’s still far easier in gtkmm than in C.