Hi, I'm spectator in this discussion. >The only real issue with GtkTreeView is that it doesn't efficiently
>handle large data sets. It uses O(n) time to deal with a sheet with n >rows or n columns. It's fine for small data sets but with a million >rows it falls over. I think gtk3 a long way in the performance of their widgets. For example and keeping the proportions, Glom is very efficient working with large databases (more than a million). In my case, I have a template that allows me to create databases in Glom and then import them into PSPP. I do not notice differences in performance when handling the same data in both applications. Glom used GtkTreeView in GTK+3 to manage the lists of cases and is somewhat similar to using PSPP/SPSS to have a section with a list of data and other information with the variables. https://github.com/GNOME/glom CJT
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