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))
('latitude', 'longitude', 'zoom-level')])
if history[-1] != location:
history.append(location)
Gst.set_history(history[-30:])
def go_back(*ignore):
"""Return the map view to where the user last set it."""
history = list(Gst.get('history'))
lat, lon, zoom = history.pop()
if valid_coords(lat, lon):
MapView.set_zoom_level(zoom)
MapView.center_on(lat, lon)
if len(history) > 1:
Gst.set_history(history)
else:
Gst.reset('history')
def zoom_button_sensitivity(view, signal, in_sensitive, out_sensitive):
"""Ensure zoom buttons are only sensitive when they need to be."""
zoom = view.get_zoom_level()
out_sensitive(view.get_min_zoom_level() != zoom)
in_sensitive( view.get_max_zoom_level() != zoom)
for prop in ('latitude', 'longitude', 'zoom-level'):
Gst.bind(prop, MapView, prop)
MapView.connect('notify::zoom-level', zoom_button_sensitivity,
Widgets.zoom_in_button.set_sensitive, Widgets.zoom_out_button.set_sensitive)
MapView.connect('realize', remember_location)
