/// <summary>
/// Allows subclasses to participate in property animated value computation
/// </summary>
/// <param name="dp"></param>
/// <param name="metadata"></param>
/// <param name="entry">EffectiveValueEntry computed by base</param>
internal sealed override void EvaluateAnimatedValueCore(
DependencyProperty dp,
PropertyMetadata metadata,
ref EffectiveValueEntry entry)
{
if (IAnimatable_HasAnimatedProperties)
{
AnimationStorage storage = AnimationStorage.GetStorage(this, dp);
if (storage != null)
{
storage.EvaluateAnimatedValue(metadata, ref entry);
}
}
}
internal void PropertyChanged(DependencyProperty dp)
{
AnimationStorage animationStorage = AnimationStorage.GetStorage(this, dp);
IndependentAnimationStorage independentAnimationStorage = animationStorage as IndependentAnimationStorage;
// If this property is independently animated and currently has
// animations all we need to do is update the animation resource
// that represents this property value. Otherwise we need to invalidate
// and and eventually update this whole object.
if (independentAnimationStorage != null)
{
independentAnimationStorage.InvalidateResource();
}
else
{
RegisterForAsyncUpdateResource();
}
}
internal static DUCE.ResourceHandle GetResourceHandle(DependencyObject d, DependencyProperty dp, DUCE.Channel channel)
{
Debug.Assert(d != null);
Debug.Assert(dp != null);
Debug.Assert(d is Animatable ? ((Animatable)d).HasAnimatedProperties : true);
IndependentAnimationStorage storage = AnimationStorage.GetStorage(d, dp) as IndependentAnimationStorage;
if (storage == null)
{
return(DUCE.ResourceHandle.Null);
}
else
{
Debug.Assert(storage._duceResource.IsOnChannel(channel));
return(((DUCE.IResource)storage).GetHandle(channel));
}
}