Hi Wim,
1. Would you want to elaborate a bit more what do you mean by "the model used is the
standard one for GtkIconView"?
I'm not aware of any standard model for GtkIconView. In GtkIconView, one can use any model, and then specify the thumnail with set_pixbuf_column($colnum) and the text labels with set_text_column($colnum).
2. I've used your model with GtkTreeModelFilter and come out with the following sample code:
http://www.kksou.com/php-gtk2/util/temp2.php
Is this what you have in mind?
Regards,
/kksou