/// <summary> Initializes a new instance of the <see cref="MapCanvas"/> class. Stores the parent map and adds
/// listeners to the map viewport changed events. </summary>
/// <param name="mapView"> The instance of the parent map. </param>
protected MapCanvas(MapView mapView)
{
MapView = mapView;
ViewportBeginChangedWeakEventManager.AddListener(mapView, this);
ViewportEndChangedWeakEventManager.AddListener(mapView, this);
ViewportWhileChangedWeakEventManager.AddListener(mapView, this);
}
/// <summary> Disposes the map canvas. During disposal the children of the canvas are removed and the viewport
/// changed events are disconnected. </summary>
public virtual void Dispose()
{
(Parent as Canvas)?.Children.Remove(this);
ViewportBeginChangedWeakEventManager.RemoveListener(MapView, this);
ViewportWhileChangedWeakEventManager.RemoveListener(MapView, this);
ViewportEndChangedWeakEventManager.RemoveListener(MapView, this);
}
