private void OnColoredMapLinePointsCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.Action == NotifyCollectionChangedAction.Move)
{
return;
}
if (e.Action == NotifyCollectionChangedAction.Reset)
{
SetMapLines(new List <MapPolyline>());
}
if (e.NewItems != null)
{
List <MapPolyline> newPolylines = new List <MapPolyline>();
List <BasicGeoposition> currentLinePositions = new List <BasicGeoposition>();
foreach (ColoredMapLine lineCollection in e.NewItems.OfType <ColoredMapLine>())
{
for (int i = 0; i <= lineCollection.Count() - 2; i++)
{
var startPoint = lineCollection[i];
var nextPoint = lineCollection[i + 1];
currentLinePositions.Add(startPoint.Coordinates);
Color nextColor = nextPoint.LineColor;
if (nextPoint == lineCollection.Last() || startPoint.LineColor != nextColor)
{
MapPolyline polyline = new MapPolyline();
polyline.Path = new Geopath(currentLinePositions);
polyline.StrokeColor = Color.FromArgb(192, startPoint.LineColor.R, startPoint.LineColor.G, startPoint.LineColor.B);
polyline.StrokeDashed = startPoint.IsLineDashed;
polyline.StrokeThickness = 6;
if (lineCollection.OptionalId != Guid.Empty)
{
MapElementExtensions.SetPoiId(polyline, lineCollection.OptionalId);
}
newPolylines.Add(polyline);
currentLinePositions = new List <BasicGeoposition>();
}
}
}
AddMapLines(newPolylines);
}
if (e.OldItems != null)
{
var removedLines = new List <MapPolyline>();
foreach (ColoredMapLine oldLine in e.OldItems.OfType <ColoredMapLine>())
{
MapPolyline removedLine = DigiTransitMapControl.MapElements
.OfType <MapPolyline>()
.FirstOrDefault(line => MapElementExtensions.GetPoiId(line) == oldLine.OptionalId);
if (removedLine != null)
{
removedLines.Add(removedLine);
}
}
RemoveMapLines(removedLines);
}
}
private static async void OnPlacesChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var _this = d as DigiTransitMap;
if (_this == null)
{
return;
}
//set up INotifyCollectionChangeds
var oldCollection = e.OldValue as INotifyCollectionChanged;
var newCollection = e.NewValue as INotifyCollectionChanged;
if (oldCollection != null)
{
oldCollection.CollectionChanged -= _this.OnPlacesCollectionChanged;
}
if (newCollection != null)
{
newCollection.CollectionChanged += _this.OnPlacesCollectionChanged;
}
var newList = e.NewValue as IEnumerable <IMapPoi>;
if (newList == null)
{
return;
}
List <MapIcon> icons = new List <MapIcon>();
foreach (var place in newList.OfType <IMapPoi>())
{
MapIcon element = new MapIcon();
element.Image = RandomAccessStreamReference.CreateFromStream(await _themeIconSource);
element.CollisionBehaviorDesired = MapElementCollisionBehavior.RemainVisible;
element.Location = new Geopoint(place.Coords);
element.Title = place.Name;
element.NormalizedAnchorPoint = new Point(0.5, 1.0);
MapElementExtensions.SetPoiId(element, place.Id);
icons.Add(element);
}
_this.SetMapIcons(icons);
}
private async void OnPlacesCollectionChanged(object sender, NotifyCollectionChangedEventArgs args)
{
if (args.Action == NotifyCollectionChangedAction.Move)
{
return;
}
if (args.Action == NotifyCollectionChangedAction.Reset)
{
SetMapIcons(null);
}
if (args.NewItems != null)
{
var newIcons = new List <MapIcon>();
foreach (IMapPoi place in args.NewItems.OfType <IMapPoi>())
{
var element = new MapIcon();
element.Image = RandomAccessStreamReference.CreateFromStream(await _themeIconSource);
element.CollisionBehaviorDesired = MapElementCollisionBehavior.RemainVisible;
element.Location = new Geopoint(place.Coords);
element.Title = place.Name;
element.NormalizedAnchorPoint = new Point(0.5, 1.0);
element.SetValue(PoiIdProperty, place.Id);
MapElementExtensions.SetPoiId(element, place.Id);
newIcons.Add(element);
}
AddMapIcons(newIcons);
}
if (args.OldItems != null)
{
var removedIcons = new List <MapIcon>();
foreach (IMapPoi place in args.OldItems.OfType <IMapPoi>())
{
var removedIcon = DigiTransitMapControl.MapElements
.OfType <MapIcon>()
.FirstOrDefault(x => x.Location.Position.Equals(place.Coords));
removedIcons.Add(removedIcon);
}
RemoveMapIcons(removedIcons);
}
}
private static void ColoredMapLinesChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
DigiTransitMap _this = d as DigiTransitMap;
if (_this == null)
{
return;
}
var oldCollection = e.OldValue as INotifyCollectionChanged;
var newCollection = e.NewValue as INotifyCollectionChanged;
if (oldCollection != null)
{
oldCollection.CollectionChanged -= _this.OnColoredMapLinePointsCollectionChanged;
}
if (newCollection != null)
{
newCollection.CollectionChanged += _this.OnColoredMapLinePointsCollectionChanged;
}
IList <ColoredMapLine> newValue = e.NewValue as IList <ColoredMapLine>;
if (newValue == null)
{
if (_this.DigiTransitMapControl.MapElements.OfType <MapPolyline>().Any())
{
_this.SetMapLines(null);
}
return;
}
List <MapPolyline> newPolylines = new List <MapPolyline>();
List <BasicGeoposition> currentLinePositions = new List <BasicGeoposition>();
foreach (ColoredMapLine lineCollection in newValue)
{
for (int i = 0; i <= lineCollection.Count() - 2; i++)
{
var startPoint = lineCollection[i];
var nextPoint = lineCollection[i + 1];
currentLinePositions.Add(startPoint.Coordinates);
Color nextColor = nextPoint.LineColor;
if (nextPoint == lineCollection.Last() || startPoint.LineColor != nextColor)
{
MapPolyline polyline = new MapPolyline();
polyline.Path = new Geopath(currentLinePositions);
polyline.StrokeColor = Color.FromArgb(192, startPoint.LineColor.R, startPoint.LineColor.G, startPoint.LineColor.B);
polyline.StrokeDashed = startPoint.IsLineDashed;
polyline.StrokeThickness = 6;
if (lineCollection.OptionalId != Guid.Empty)
{
MapElementExtensions.SetPoiId(polyline, lineCollection.OptionalId);
}
newPolylines.Add(polyline);
currentLinePositions = new List <BasicGeoposition>();
}
}
}
_this.SetMapLines(newPolylines);
}