def config_treeview(opt, columns=["Icon", "Command"]):
        lno = len(columns)
        if lno == 2:
            liststore = gtk.ListStore(str, str, str)
        else:
            liststore = gtk.ListStore(*[str for i in range(0, lno)])
        w = gtk.TreeView(liststore)
        sw = gtk.ScrolledWindow()
        sw.set_border_width(5)
        sw.add(w)
        # two text columns and renderers
        for i in range(0, lno):
            c = gtk.TreeViewColumn(columns[i])
            c.set_resizable(True)
            c.set_sizing(gtk.TREE_VIEW_COLUMN_FIXED)
            c.set_fixed_width(int(550/lno))
            r = gtk.CellRendererText()
            c.pack_end(r, expand=True)
            r.set_property("editable", True)
            r.connect("edited", uikit.liststore_edit, (liststore, i))
            c.add_attribute(r, "text", i)
            #c.add_attribute(r, "editable", 2)
            w.append_column(c)
        # add pixbuf holder to last column
        if lno < 3:
            r = gtk.CellRendererPixbuf()
            c.pack_start(r, expand=False)
            c.add_attribute(r, "stock_id", 2)
        w.set_property("width_request", 470)
        w.set_property("height_request", 115)
        return sw, liststore
        
    # Generic Gtk callback to update ListStore when entries get edited.
    # where user_data = (liststore, column #id)
    @staticmethod
    def liststore_edit(cell, row, text, user_data):
        #log.EDIT(cell, row, text, user_data)
        row = int(row)