/// <summary>
/// Updates the <see cref="SiteMarker"/> to reflect the current <see cref="ViewOptions"/>.
/// </summary>
/// <remarks>
/// <b>UpdateMarker</b> enables or disables color animation for the <see
/// cref="SiteMarker"/>, depending on the current <see cref="ViewOptions"/>.</remarks>
public void UpdateMarker()
{
if (ApplicationOptions.Instance.View.StaticMarker)
{
this._siteMarker.Stroke = Brushes.White;
}
else
{
// animation to cycle between colors
var animation = new DoubleAnimation(0.3, 0.6, Duration.Automatic);
animation.AutoReverse = true;
animation.RepeatBehavior = RepeatBehavior.Forever;
// radial brush with animated color spectrum
var brush = new RadialGradientBrush(Colors.Yellow, Colors.White);
brush.SpreadMethod = GradientSpreadMethod.Reflect;
brush.BeginAnimation(RadialGradientBrush.RadiusXProperty, animation);
brush.BeginAnimation(RadialGradientBrush.RadiusYProperty, animation);
this._siteMarker.Stroke = brush;
}
}