/// <summary>
/// This method is called when the view is disappearing.
/// </summary>
/// <param name="sender"> The sender. </param>
/// <param name="e"> The e. </param>
protected override void ViewIsDisappearing(object sender, EventArgs e)
{
CanvasSessionHelper.ClearShapes(CanvasViewKey);
}
protected void SetShapes(ICollection <CelestialDrawModel> shapes, ObjectCollectionLayout objectCollectionLayout)
{
CanvasSessionHelper.SetCanvasShapes(CanvasViewKey, shapes.ToList());
CanvasSessionHelper.SetCanvasObjectCollectionLayout(CanvasViewKey, objectCollectionLayout);
Shapes.SetOnApplicationThread(shapes, _shapesCollectionLock, RaisePropertyChanged, nameof(Shapes), null);
}
