def on_menu(self, event):
'''handle menu selection'''
state = self.state
# see if it is a popup menu
if state.popup_object is not None:
obj = state.popup_object
ret = obj.popup_menu.find_selected(event)
if ret is not None:
ret.call_handler()
state.event_queue.put(
SlipMenuEvent(state.popup_latlon, event, [
SlipObjectSelection(obj.key, 0, obj.layer,
obj.selection_info())
], ret))
state.popup_object = None
state.popup_latlon = None
if state.default_popup is not None:
ret = state.default_popup.popup.find_selected(event)
if ret is not None:
ret.call_handler()
state.event_queue.put(
SlipMenuEvent(state.popup_latlon, event, [], ret))
# otherwise a normal menu
ret = self.menu.find_selected(event)
if ret is None:
return
ret.call_handler()
if ret.returnkey == 'toggleGrid':
state.grid = ret.IsChecked()
elif ret.returnkey == 'toggleLegend':
state.legend = ret.IsChecked()
elif ret.returnkey == 'toggleFollow':
state.follow = ret.IsChecked()
elif ret.returnkey == 'toggleDownload':
state.download = ret.IsChecked()
elif ret.returnkey == 'setService':
state.mt.set_service(ret.get_choice())
elif ret.returnkey == 'gotoPosition':
state.panel.enter_position()
elif ret.returnkey == 'increaseBrightness':
state.brightness += 20
if state.brightness > 255:
state.brightness = 255
elif ret.returnkey == 'decreaseBrightness':
state.brightness -= 20
if state.brightness < -255:
state.brightness = -255
elif ret.returnkey == 'zoomIn':
state.panel.change_zoom(1.0 / 1.2)
elif ret.returnkey == 'zoomOut':
state.panel.change_zoom(1.2)
state.need_redraw = True
def selected_objects(self, pos):
'''return a list of matching objects for a position'''
state = self.state
selected = []
(px, py) = pos
for layer in state.layers:
for key in state.layers[layer]:
obj = state.layers[layer][key]
distance = obj.clicked(px, py)
if distance is not None:
selected.append(SlipObjectSelection(key, distance, layer, extra_info=obj.selection_info()))
selected.sort(key=lambda c: c.distance)
return selected