/// <summary>
/// Performs an animated iteration through the wrapped collection's
/// elements.
/// </summary>
///
/// <param name="action">
/// the action to perform for every iteration through the collection.
/// </param>
/// <param name="duration">
/// the number of milliseconds that the animation should last.
/// </param>
/// <param name="interpolator">
/// the interpolation function that should be used for the animation.
/// </param>
public void ForEach(IterationAction action, long duration,
Interpolator interpolator)
{
// Perform an animation that will animate through
// all of the indices in the collection.
var lastIndex = this.Collection.Count() - 1;
var indexAnimation = new ValueAnimation(0, lastIndex,
duration, interpolator);
// Every time the index animation is iterated, iterate the
// "loop" and perform the action for every item up to the
// current index.
int i = 0;
indexAnimation.AnimationIncremented += (_, __) =>
{
while (i <= indexAnimation.CurrentValue)
{
var element = this.Collection.ElementAt(i);
action(element, i);
i++;
}
};
// Add the index animation to the list of animations being
// performed.
this.AddAnimation(indexAnimation);
// Start the animation.
indexAnimation.Start();
}
/// <summary>
/// Performs an animated iteration through the wrapped collection's
/// elements.
/// </summary>
///
/// <param name="action">
/// the action to perform for every iteration through the collection.
/// </param>
/// <param name="interpolator">
/// the interpolation function that should be used for the animation.
/// </param>
public void ForEach(IterationAction action, Interpolator interpolator)
{
this.ForEach(action, this.DefaultDuration, interpolator);
}
/// <summary>
/// Performs an animated iteration through the wrapped collection's
/// elements.
/// </summary>
///
/// <param name="action">
/// the action to perform for every iteration through the collection.
/// </param>
/// <param name="duration">
/// the number of milliseconds that the animation should last.
/// </param>
public void ForEach(IterationAction action, long duration)
{
this.ForEach(action, duration, this.DefaultInterpolator);
}
