private static List <BaseAnimation> VerifyList(BaseAnimation animation)
{
var list = GetAnimations(animation.Element);
if (list == null)
{
SetAnimations(animation.Element, list = new List <BaseAnimation>());
}
return(list);
}
internal static void RemoveAnimation(BaseAnimation animation)
{
var list = GetAnimations(animation.Element);
if (list != null)
{
animation.Retain();
animation.Stop();
list.Remove(animation);
}
}
internal static void AddAnimation(BaseAnimation animation)
{
var list = VerifyList(animation);
int index = list.IndexOfItem(x => x.Equivalent(animation));
if (index != -1)
{
var item = list[index];
item.Retain();
item.Stop();
list.RemoveAt(index);
}
list.Add(animation);
}
public virtual bool Equivalent(BaseAnimation animation)
{
return(animation.GetType() == GetType());
}