private static void DoBlurTansition(
IBlurParams blurParams,
FrameworkElement target,
RoutedEventHandler onLoaded,
Visibility?visibility)
{
var reverse = Transitionz.IsVisibilityHidden(visibility);
var blurEffect = new BlurEffect()
{
Radius = reverse ? blurParams.To : blurParams.From
};
target.Effect = blurEffect;
if (onLoaded != null && Transitionz.HasFlag(blurParams.TransitionOn, TransitionOn.Once))
{
target.Loaded -= onLoaded;
}
var a = new DoubleAnimation
{
From = reverse ? blurParams.To : blurParams.From,
To = reverse ? blurParams.From : blurParams.To,
FillBehavior = blurParams.FillBehavior,
BeginTime = TimeSpan.FromMilliseconds(blurParams.BeginTime),
Duration = new Duration(TimeSpan.FromMilliseconds(blurParams.Duration)),
EasingFunction = reverse ? (blurParams.ReverseEase ?? blurParams.Ease) : blurParams.Ease,
AutoReverse = blurParams.AutoReverse,
};
// Directly adding RepeatBehavior to constructor breaks existing animations, so only add it if properly defined
if (blurParams.RepeatBehavior == RepeatBehavior.Forever ||
blurParams.RepeatBehavior.HasDuration ||
(blurParams.RepeatBehavior.HasDuration && blurParams.RepeatBehavior.Count > 0))
{
a.RepeatBehavior = blurParams.RepeatBehavior;
}
if (blurParams.To == 0.0)
{
a.Completed += (_, __) => target.Effect = null;
}
if (visibility.HasValue)
{
a.Completed += (_, __) => target.Visibility = visibility.Value;
}
a.SetDesiredFrameRate(24);
var storyboard = new Storyboard();
storyboard.Children.Add(a);
Storyboard.SetTarget(a, ((BlurEffect)target.Effect));
Storyboard.SetTargetProperty(a, new PropertyPath(BlurEffect.RadiusProperty));
FreezeHelper.SetFreeze(storyboard, true);
storyboard.Begin();
}
public static void SetBlur(DependencyObject element, IBlurParams value)
{
element.SetValue(BlurProperty, value);
}
