def __init__(self, lat=None, lng=None, radius=500):
self.lat = lat
self.lng = lng
self.radius = radius
self.zoom = 17
self.ftid = None
self.mercator = GlobalMercator(tileSize=256)
self.gmm = GMapMetadata(zoom=self.zoom)
Notify.init("bus-notify")
class BusNotify:
def __init__(self, lat=None, lng=None, radius=500):
self.lat = lat
self.lng = lng
self.radius = radius
self.zoom = 17
self.ftid = None
self.mercator = GlobalMercator(tileSize=256)
self.gmm = GMapMetadata(zoom=self.zoom)
Notify.init("bus-notify")
def main(self):
win = Gtk.Window(title="Bus Notify")
win.set_border_width(10)
vbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=6)
self.title_label = Gtk.Label(label="Select a nearby bus stop.", justify=Gtk.Justification.LEFT)
vbox.pack_start(self.title_label, False, False, 0)
self.bus_stops = self.proximity_search(self.lat, self.lng, self.radius, self.zoom)
bus_list = Gtk.ListStore(str, str)
for ftid, stop in self.bus_stops.iteritems():
bus_list.append([str(ftid), str(stop["caption"])])
self.combo_bus_stops = Gtk.ComboBox.new_with_model(bus_list)
renderer_text = Gtk.CellRendererText()
self.combo_bus_stops.pack_start(renderer_text, True)
self.combo_bus_stops.add_attribute(renderer_text, "text", 1)
self.combo_bus_stops.connect("changed", self.on_select_stop)
vbox.pack_start(self.combo_bus_stops, False, False, 0)
self.stop_assoc_lines = Gtk.ListStore(int, str)
self.combo_lines = Gtk.ComboBox.new_with_model(self.stop_assoc_lines)
renderer_text = Gtk.CellRendererText()
self.combo_lines.pack_start(renderer_text, True)
self.combo_lines.add_attribute(renderer_text, "text", 1)
self.combo_lines.connect("changed", self.on_select_line)
vbox.pack_start(self.combo_lines, False, False, 0)
win.add(vbox)
win.connect("delete-event", Gtk.main_quit)
win.show_all()
Gtk.main()
def on_select_stop(self, combo):
combo_iter = combo.get_active_iter()
if combo_iter != None:
model = combo.get_model()
ftid = model[combo_iter][0]
self.watched_stop = model[combo_iter][1]
self.bus_lines = self.gmm.get_stop_metadata(ftid)
if self.bus_lines:
self.stop_assoc_lines.clear()
for subscript, line in enumerate(self.bus_lines["lines"]):
self.stop_assoc_lines.append([subscript, " - ".join([line["line"], line.get("direction", "")])])
pass
def on_select_line(self, combo):
combo_iter = combo.get_active_iter()
if combo_iter != None:
model = combo.get_model()
line_index = model[combo_iter][0]
if self.bus_lines and line_index < len(self.bus_lines["lines"]):
self.watch(self.bus_lines["lines"][line_index])
def watch(self, line):
self.watched_line = " - ".join([line["line"], line.get("direction", "")])
self.watched_schedules = [
datetime.combine(datetime.today(), datetime.strptime(tp[0], "%I:%M %p").time()) for tp in line["schedules"]
]
self.title_label.set_label("Start watching " + self.watched_line)
self.combo_lines.set_sensitive(False)
self.combo_bus_stops.set_sensitive(False)
self.check_schedule(immediate=True)
def check_schedule(self, immediate=False):
for t in self.watched_schedules:
minutes_to_due = floor((t - datetime.now()).total_seconds() / 60.0)
if immediate and minutes_to_due > 0 or (minutes_to_due <= 20 and minutes_to_due in (0, 5, 10, 20)):
notify = Notify.Notification.new(
"%s is due in %d minutes" % (self.watched_line, minutes_to_due),
"@ %s on %s" % (self.watched_stop, t.strftime("%I:%M %p")),
None,
)
notify.show()
break
# set next timeout
GObject.timeout_add_seconds(60, self.check_schedule)
def proximity_search(self, lat, lng, radius=500, zoom=17):
mx, my = self.mercator.LatLonToMeters(lat, lng)
tx_prime, ty_prime = self.mercator.MetersToTile(mx - radius, my + radius, zoom)
tx_prime, ty_prime = self.mercator.GoogleTile(tx_prime, ty_prime, zoom)
tx, ty = self.mercator.MetersToTile(mx, my, zoom)
tx, ty = self.mercator.GoogleTile(tx, ty, zoom)
landmarks = self.gmm.get_landmarks(tx_prime, ty_prime, max(tx - tx_prime, ty - ty_prime) * 2)
stops = self.gmm.extract_bus_stops(landmarks)
return stops
