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 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 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)
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)