def remember_location(view):
"""Add current location to history stack."""
history = list(gst.get('history'))
location = tuple([view.get_property(x) for x in
('latitude', 'longitude', 'zoom-level')])
if history[-1] != location:
history.append(location)
gst.set_history(history[-30:])
def remember_location(view):
"""Add current location to history stack."""
history = list(gst.get('history'))
location = tuple(view.get_property(x) for x in
('latitude', 'longitude', 'zoom-level'))
if history[-1] != location:
history.append(location)
gst.set_history(history[-30:])
def go_back(button, view):
"""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):
view.set_zoom_level(zoom)
view.center_on(lat, lon)
if len(history) > 1:
gst.set_history(history)
else:
gst.reset('history')
map_view.emit('animation-completed')
def go_back(button, view):
"""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):
view.set_zoom_level(zoom)
view.center_on(lat, lon)
if len(history) > 1:
gst.set_history(history)
else:
gst.reset('history')
map_view.emit('animation-completed')