/// <summary>
/// Copies data from another map control view model.
/// </summary>
public void CopyFrom(MapControlViewModel other)
{
this.userLocation = other.userLocation;
this.busStops = other.busStops;
this.mapView = other.mapView;
this.shapes = other.shapes;
this.selectedBusStop = other.selectedBusStop;
}
/// <summary>
/// Copies data from another map control view model.
/// </summary>
public void CopyFrom(MapControlViewModel other)
{
this.userLocation = other.userLocation;
this.busStops = other.busStops;
this.mapView = other.mapView;
this.shapes = other.shapes;
this.selectedBusStop = other.selectedBusStop;
}
/// <summary>
/// Called when a stop is selected.
/// </summary>
public void SelectStop(BusStopControlViewModel busStopViewModel)
{
var stopSelected = this.StopSelected;
if (stopSelected != null)
{
this.UnSelectStop();
this.SelectedBusStop = busStopViewModel;
this.SelectedBusStop.ZIndex = 100;
stopSelected(this, new StopSelectedEventArgs(busStopViewModel.StopName,
busStopViewModel.StopId,
busStopViewModel.Direction,
busStopViewModel.Latitude,
busStopViewModel.Longitude));
}
}
private static async void BusStopsChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var mapControl = d as MapControl;
if (e.NewValue == null)
{
mapControl.displayedBusStopLookup.Clear();
mapControl.map.Children.Clear();
mapControl.map.Children.Add(mapControl.userLocationIcon);
MapLayer.SetPosition(mapControl.userLocationIcon, mapControl.userLocation);
}
else
{
MapControlViewModel mapControlViewModel = (MapControlViewModel)mapControl.DataContext;
var stops = e.NewValue as BusStopList;
if (stops.ClearExistingStops)
{
// If the clear existing stops property is set to true,
// then we should clear the existing stops:
mapControl.map.Children.Clear();
mapControl.displayedBusStopLookup.Clear();
}
foreach (var stop in stops)
{
// If we're not already displaying this bus stop then add it to the list:
if (!mapControl.displayedBusStopLookup.Contains(stop.StopId))
{
BusStopControlViewModel busStopControlViewModel = new BusStopControlViewModel(stop);
if (mapControlViewModel.SelectedBusStop != null)
{
busStopControlViewModel.IsSelected = string.Equals(mapControlViewModel.SelectedBusStop.StopId, stop.StopId, StringComparison.OrdinalIgnoreCase);
if (busStopControlViewModel.IsSelected)
{
mapControlViewModel.SelectedBusStop = busStopControlViewModel;
}
}
BusStop busStopIcon = new BusStop();
busStopIcon.ViewModel = busStopControlViewModel;
mapControl.map.Children.Add(busStopIcon);
// Wait for the UI to idle before we add another bus stop to make the UI more responsive:
await mapControl.uiHelper.WaitForIdleAsync();
mapControl.displayedBusStopLookup.Add(stop.StopId);
MapLayer.SetPosition(busStopIcon, new Location(stop.Latitude, stop.Longitude));
}
}
}
}
/// <summary>
/// Called when a stop is selected.
/// </summary>
public void SelectStop(BusStopControlViewModel busStopViewModel)
{
var stopSelected = this.StopSelected;
if (stopSelected != null)
{
this.UnSelectStop();
this.SelectedBusStop = busStopViewModel;
this.SelectedBusStop.ZIndex = 100;
stopSelected(this, new StopSelectedEventArgs(busStopViewModel.StopName,
busStopViewModel.StopId,
busStopViewModel.Direction,
busStopViewModel.Latitude,
busStopViewModel.Longitude));
}
}
/// <summary>
/// Clears the view model when we're unloaded.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void OnUnloaded(object sender, RoutedEventArgs e)
{
if (this.viewModel != null)
{
this.viewModel.PropertyChanged -= OnViewModelPropertyChanged;
this.viewModel = null;
}
}
