core.py 文件源码

def __init__(self):
        assert Visualizer.INSTANCE is None
        Visualizer.INSTANCE = self
        super(Visualizer, self).__init__()
        self.nodes =  {} # node index -> Node
        self.channels = {} # id(ns3.Channel) -> Channel
        self.window = None # toplevel window
        self.canvas = None # goocanvas.Canvas
        self.time_label = None # gtk.Label
        self.play_button = None # gtk.ToggleButton
        self.zoom = None # gtk.Adjustment
        self._scrolled_window = None # gtk.ScrolledWindow

        self.links_group = goocanvas.Group()
        self.channels_group = goocanvas.Group()
        self.nodes_group = goocanvas.Group()

        self._update_timeout_id = None
        self.simulation = SimulationThread(self)
        self.selected_node = None # node currently selected
        self.speed = 1.0
        self.information_windows = []
        self._transmission_arrows = []
        self._last_transmissions = []
        self._drop_arrows = []
        self._last_drops = []
        self._show_transmissions_mode = None
        self.set_show_transmissions_mode(ShowTransmissionsMode.ALL)
        self._panning_state = None
        self.node_size_adjustment = None
        self.transmissions_smoothing_adjustment = None
        self.sample_period = SAMPLE_PERIOD
        self.node_drag_state = None
        self.follow_node = None
        self.shell_window = None

        self.create_gui()

        for plugin in plugins:
            plugin(self)