def __init__(self, icons, layout, show_ratings, overlay_icon_name):
GObject.GObject.__init__(self)
# geometry-state values
self.pixbuf_width = 0
self.apptitle_width = 0
self.apptitle_height = 0
self.normal_height = 0
self.selected_height = 0
self.show_ratings = show_ratings
# button packing
self.button_spacing = 0
self._buttons = {Gtk.PackType.START: [], Gtk.PackType.END: []}
self._all_buttons = {}
# cache a layout
self._layout = layout
# star painter, paints stars
self._stars = StarRenderer()
self._stars.size = StarSize.SMALL
# icon/overlay jazz
try:
self._installed = icons.load_icon(overlay_icon_name,
self.OVERLAY_SIZE, 0)
except GObject.GError:
# icon not present in theme, probably because running uninstalled
self._installed = icons.load_icon('emblem-system',
self.OVERLAY_SIZE, 0)
return
