def __init__(self):
Clutter.Box.__init__(self)
self.set_layout_manager(Clutter.BinLayout())
self.set_color(Clutter.Color.new(0, 0, 0, 96))
Gst.bind('show-map-coords', self, 'visible')
MapView.bin_layout_add(self, START, START)
self.get_layout_manager().add(CoordLabel, CENTER, CENTER)
MapView.connect('notify::width',
lambda *ignore: self.set_size(MapView.get_width(), 30))
def move_by_arrow_keys(accel_group, acceleratable, keyval, modifier):
"""Move the map view by 5% of its length in the given direction."""
key = Gdk.keyval_name(keyval)
factor = 0.45 if key in ('Up', 'Left') else 0.55
if key in ('Up', 'Down'):
lat = MapView.y_to_latitude(MapView.get_height() * factor)
lon = MapView.get_center_longitude()
else:
lat = MapView.get_center_latitude()
lon = MapView.x_to_longitude(MapView.get_width() * factor)
if valid_coords(lat, lon):
MapView.center_on(lat, lon)
