"config_play_list_edit_col0": lambda w,path,txt: (self.configwin.list_edit(self.config_play, path, 0, txt)),
            "config_play_list_edit_col1": lambda w,path,txt: (self.configwin.list_edit(self.config_play, path, 1, txt)),
            "config_record_list_edit_col0": lambda w,path,txt: (self.configwin.list_edit(self.config_record, path, 0, txt)),
            "config_record_list_edit_col1": lambda w,path,txt: (self.configwin.list_edit(self.config_record, path, 1, txt)),
            # else
            "update_categories": self.update_categories,
            "update_favicons": self.update_favicons,
            "app_state": self.save_app_state,
            "bookmark": self.bookmark,
            "save_as": self.save_as,
            "menu_about": lambda w: AboutStreamtuner2(self),
            "menu_help": action.help,
            "menu_onlineforum": lambda w: action.browser("http://sourceforge.net/projects/streamtuner2/forums/forum/1173108"),
            "menu_fossilwiki": lambda w: action.browser("http://fossil.include-once.org/streamtuner2/"),
            "menu_projhomepage": lambda w: action.browser("http://milki.include-once.org/streamtuner2/"),

    # load application state (widget sizes, selections, etc.)
    def init_app_state(self):

        winlayout = conf.load("window")
        if (winlayout):
            try: uikit.app_restore(self, winlayout)
            except Exception as e: log.APPRESTORE(e) # may fail for disabled/reordered plugin channels

        winstate = conf.load("state")
        if (winstate):
            for id,prev in winstate.items():
                try: self.channels[id].current = prev["current"]
                except Exception as e: log.APPSTATE(e)

    # store window/widget states (sizes, selections, etc.)
    def save_app_state(self, widget):
        # gtk widget states
        widgetnames = ["win_streamtuner2", "toolbar", "notebook_channels", ] \
                    + [id+"_list" for id in self.channel_names] \
                    + [id+"_cat" for id in self.channel_names]
        conf.save("window", uikit.app_state(wTree=self, widgetnames=widgetnames), nice=1)
        # object vars
        channelopts = {} #dict([(id, {"current":self.channels[id].current}) for id in self.channel_names])
        for id in self.channels.keys():
            if (self.channels[id]):
                channelopts[id] = {"current":self.channels[id].current}
        conf.save("state", channelopts, nice=1)


    # end application and gtk+ main loop
    def gtk_main_quit(self, widget, *x):
        if conf.auto_save_appstate:
            try:  # doesn't work with gtk3 yet (probably just hooking at the wrong time)
                self.save_app_state(widget)
            except Exception as e:
                log.ERR(e)
        gtk.main_quit()


    # Right clicking a stream/station in the treeview to make context menu pop out.
    def station_context_menu(self, treeview, event):
        if treeview and event and event.button >= 3:
            path = treeview.get_path_at_pos(int(event.x), int(event.y))

            if t == gtk.TreeView:
                r[wn]["columns:width"] = []
                for col in w.get_columns():
                    r[wn]["columns:width"].append( col.get_width() )
                # - Rows
                r[wn]["rows:expanded"] = []
                for i in xrange(0,50):
                    if w.row_expanded(treepath(i)):   # Gtk.TreePath for Gtk3
                        r[wn]["rows:expanded"].append(i)
                # - selected
                (model, paths) = w.get_selection().get_selected_rows()
                if paths:
                    r[wn]["row:selected"] = treepath_to_str(paths[0])
            # gtk.Toolbar
            if t == gtk.Toolbar:
                r[wn]["icon_size"] = int(w.get_icon_size())
                r[wn]["style"] = int(w.get_style())
            # gtk.Notebook
            if t == gtk.Notebook:
                r[wn]["tab_pos"] = int(w.get_tab_pos())

                    for i,col in enumerate(w.get_columns()):
                        if (i < len(args)):
                            col.set_fixed_width(args[i])
                #  - Rows
                if method == "rows:expanded":
                    w.collapse_all()
                    for i in args:
                        w.expand_row(treepath(i), False)
                #  - selected
                if method == "row:selected":
                    w.get_selection().select_path(treepath(args))
                # gtk.Toolbar
                if method == "icon_size":
                    w.set_icon_size(args)
                if method == "style":
                    w.set_style(args)
                # gtk.Notebook
                if method == "tab_pos":

# Transparent png            
empty_pixbuf = uikit.pixbuf(
    """iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABGdBTUEAALGPC/xhBQAAACBjSFJNAA
    B6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAABmJLR0QA/wD/AP+gvaeTAAAAB3RJTUU
    H3wQLEAE6zgxuGAAAABFJREFUOBFjGAWjYBSMAigAAAQQAAFWMn04AAAAAElFTkSuQmCC"""
)



#-- Gtk3 wrappers

# Use a str of "1:2:3" as treepath,
# literally in Gtk2, TreePath-wrapped for Gtk3
def treepath(ls):
    if isinstance(ls, (list,tuple)):
        ls = ls[0]
    if ver==2:
        return str(ls)
    else:
        return gtk.TreePath.new_from_string(str(ls))
#
def treepath_to_str(tp):
    if ver==2:
        return tp
    else:
        return tp.to_string()
        


# Text-only dropdown list.
#
# Necessary because gtk.ComboBoxText binding is absent in debian packages
# https://bugzilla.gnome.org/show_bug.cgi?id=660659
#
# This one implements a convenience method `.set_default()` to define the active