import gtk

from sugar.graphics.grid import Grid

settings = gtk.settings_get_default()

grid = Grid()
sizes = 'gtk-large-toolbar=%d, %d' % (grid.dimension(1), grid.dimension(1))
settings.set_string_property('gtk-icon-sizes', sizes, '')

def get_default_type(activity_type):
    """Get the activity default type.

       It's the type of the main network service which tracks presence
       and provides info about the activity, for example the title."""
    splitted_id = activity_type.split('.')
    splitted_id.reverse()
    return '_' + '_'.join(splitted_id) + '._udp'