private static void DoTranslateTransition(ITranslateParams transitionParams, FrameworkElement target, RoutedEventHandler onLoaded, Visibility?visibility)
{
if (onLoaded != null && Transitionz.HasFlag(transitionParams.TransitionOn, TransitionOn.Once))
{
target.Loaded -= onLoaded;
}
var reverse = Transitionz.IsVisibilityHidden(visibility);
var translateTransform = new TranslateTransform()
{
X = reverse ? transitionParams.To.X : transitionParams.From.X,
Y = reverse ? transitionParams.To.Y : transitionParams.From.Y,
};
target.RenderTransform = translateTransform;
var x = new DoubleAnimation
{
From = reverse ? transitionParams.To.X : transitionParams.From.X,
To = reverse ? transitionParams.From.X : transitionParams.To.X,
FillBehavior = transitionParams.FillBehavior,
BeginTime = TimeSpan.FromMilliseconds(transitionParams.BeginTime),
Duration = new Duration(TimeSpan.FromMilliseconds(transitionParams.Duration)),
EasingFunction = reverse ? (transitionParams.ReverseEase ?? transitionParams.Ease) : transitionParams.Ease,
AutoReverse = transitionParams.AutoReverse,
};
var y = new DoubleAnimation
{
From = reverse ? transitionParams.To.Y : transitionParams.From.Y,
To = reverse ? transitionParams.From.Y : transitionParams.To.Y,
FillBehavior = transitionParams.FillBehavior,
BeginTime = TimeSpan.FromMilliseconds(transitionParams.BeginTime),
Duration = new Duration(TimeSpan.FromMilliseconds(transitionParams.Duration)),
EasingFunction = reverse ? (transitionParams.ReverseEase ?? transitionParams.Ease) : transitionParams.Ease,
AutoReverse = transitionParams.AutoReverse,
};
// Directly adding RepeatBehavior to constructor breaks existing animations, so only add it if properly defined
if (transitionParams.RepeatBehavior == RepeatBehavior.Forever ||
transitionParams.RepeatBehavior.HasDuration ||
(transitionParams.RepeatBehavior.HasDuration && transitionParams.RepeatBehavior.Count > 0))
{
x.RepeatBehavior = transitionParams.RepeatBehavior;
y.RepeatBehavior = transitionParams.RepeatBehavior;
}
if (visibility.HasValue)
{
x.Completed += (_, __) => target.Visibility = visibility.Value;
}
x.SetDesiredFrameRate(24);
y.SetDesiredFrameRate(24);
(target.RenderTransform).BeginAnimation(TranslateTransform.XProperty, x);
(target.RenderTransform).BeginAnimation(TranslateTransform.YProperty, y);
}
public static void SetTranslate(UIElement element, ITranslateParams value)
{
element.SetValue(TranslateProperty, value);
}
