/// <summary>
/// Invoked when this page is about to be displayed in a Frame.
/// </summary>
/// <param name="e">Event data that describes how this page was reached.
/// This parameter is typically used to configure the page.</param>
protected override void OnNavigatedTo(NavigationEventArgs e)
{
if (e.NavigationMode == NavigationMode.Back)
return;
var directory = (Directory)NavigationParameters.Instance.GetParameters();
var icon = new MapIconUserControl(directory);
var position = new BasicGeoposition();
position.Latitude = directory.Latitude;
position.Longitude = directory.Longitude;
var geopoint = new Geopoint(position);
MapControl.Children.Add(icon);
MapControl.SetLocation(icon, geopoint);
}
private void MapControl_Loaded(object sender, RoutedEventArgs e)
{
if (_isBack)
return;
_listView.ScrollIntoView(_listView.Items.First());
var map = VisualHelper.FindChildControl<Map>(MapHubSection, "MapControl") as Map;
_mapControl = map;
_mapControl.ZoomLevel = 5;
_mapControl.Center = new Location(-42.897857, 170.816761);
_mapControl.Children.Clear();
var geopoints = new List<Geopoint>();
_listView.Items.Cast<Directory>().Where(x => x.Latitude != 0 && x.Longitude != 0).ToObservable()
.ObserveOnDispatcher().Do(x =>
{
var icon = new MapIconUserControl(x);
icon.Tapped -= icon_Tapped;
icon.Tapped += icon_Tapped;
var position = new BasicGeoposition();
position.Latitude = x.Latitude;
position.Longitude = x.Longitude;
var geopoint = new Geopoint(position);
geopoints.Add(geopoint);
MapLayer.SetPosition(icon, new Location(x.Latitude, x.Longitude));
_mapControl.Children.Add(icon);
}).Finally(() => SetCenterOfPoints(geopoints)).Subscribe();
}
private void Pivot_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (!(sender is Pivot))
return;
var pivot = (Pivot)sender;
MainCommandBar.Visibility = Visibility.Visible;
LockMapAppBar.Visibility = Visibility.Collapsed;
switch (pivot.SelectedIndex)
{
case 0:
{
MainCommandBar.Visibility = Visibility.Collapsed;
break;
}
case 1:
{
LockMapAppBar.Visibility = Visibility.Visible;
break;
}
}
if (pivot.SelectedIndex == 1)
{
if (MapControl.Children.Any())
return;
var semaphore = new SemaphoreSlim(1);
var geopoints = new List<Geopoint>();
SchoolsListView.Items.Cast<Directory>().Where(x => x.Latitude != 0 && x.Longitude != 0).ToObservable()
.ObserveOnDispatcher().Do(x =>
{
var icon = new MapIconUserControl(x);
icon.Tapped -= icon_Tapped;
icon.Tapped += icon_Tapped;
var position = new BasicGeoposition();
position.Latitude = x.Latitude;
position.Longitude = x.Longitude;
MapControl.Children.Add(icon);
var geopoint = new Geopoint(position);
MapControl.SetLocation(icon, geopoint);
geopoints.Add(geopoint);
}).Finally(async () =>
{
await semaphore.WaitAsync();
try
{
await SetCenterOfPoints(geopoints);
}
finally
{
semaphore.Release();
}
}).Subscribe();
}
}
private void DrawNearbySchoolsChanged(IEnumerable<Directory> directories)
{
var existing = MapControl.Children.Where(x => x.GetType() == typeof(MapIconUserControl));
for (var i = existing.Count(); i > 0; i--)
{
var directory = (MapIconUserControl)existing.ElementAt(i - 1);
directory.Tapped -= icon_Tapped;
MapControl.Children.Remove(directory);
}
foreach (var directory in directories)
{
var icon = new MapIconUserControl(directory);
icon.Tapped -= icon_Tapped;
icon.Tapped += icon_Tapped;
var position = new BasicGeoposition();
position.Latitude = directory.Latitude;
position.Longitude = directory.Longitude;
var geopoint = new Geopoint(position);
MapControl.Children.Add(icon);
MapControl.SetLocation(icon, geopoint);
}
}
