/// <summary>
/// Animates the offset of the the UIElement.
/// </summary>
/// <param name="animationSet">The animation set.</param>
/// <param name="offsetX">The offset on the x axis.</param>
/// <param name="offsetY">The offset on the y axis.</param>
/// <param name="duration">The duration in milliseconds.</param>
/// <param name="delay">The delay in milliseconds. (ignored if duration == 0)</param>
/// <param name="easingType">Used to describe how the animation interpolates between keyframes.</param>
/// <returns>
/// An AnimationSet.
/// </returns>
public static AnimationSet Offset(
this AnimationSet animationSet,
float offsetX = 0f,
float offsetY = 0f,
double duration = 500d,
double delay = 0d,
EasingType easingType = EasingType.Default)
{
if (animationSet == null)
{
return(null);
}
if (!AnimationSet.UseComposition)
{
var element = animationSet.Element;
var transform = GetAttachedCompositeTransform(element);
var animationX = new DoubleAnimation();
var animationY = new DoubleAnimation();
animationX.To = offsetX;
animationY.To = offsetY;
animationX.Duration = animationY.Duration = TimeSpan.FromMilliseconds(duration);
animationX.BeginTime = animationY.BeginTime = TimeSpan.FromMilliseconds(delay);
animationX.EasingFunction = animationY.EasingFunction = GetEasingFunction(easingType);
animationSet.AddStoryboardAnimation(GetAnimationPath(transform, element, "TranslateX"), animationX);
animationSet.AddStoryboardAnimation(GetAnimationPath(transform, element, "TranslateY"), animationY);
}
else
{
var visual = animationSet.Visual;
var offsetVector = new Vector3(offsetX, offsetY, 0);
if (duration <= 0)
{
animationSet.AddCompositionDirectPropertyChange("Offset", offsetVector);
return(animationSet);
}
var compositor = visual?.Compositor;
if (compositor == null)
{
return(null);
}
var animation = compositor.CreateVector3KeyFrameAnimation();
animation.Duration = TimeSpan.FromMilliseconds(duration);
animation.DelayTime = TimeSpan.FromMilliseconds(delay);
animation.InsertKeyFrame(1f, offsetVector);
animationSet.AddCompositionAnimation("Offset", animation);
}
return(animationSet);
}
public static AnimationSet Scale(
this AnimationSet animationSet,
float scaleX = 1f,
float scaleY = 1f,
float centerX = 0f,
float centerY = 0f,
double duration = 500d,
double delay = 0d)
{
if (animationSet == null)
{
return(null);
}
if (!AnimationSet.UseComposition)
{
var element = animationSet.Element;
var transform = GetAttachedCompositeTransform(element);
transform.CenterX = centerX;
transform.CenterY = centerY;
var animationX = new DoubleAnimation();
var animationY = new DoubleAnimation();
animationX.To = scaleX;
animationY.To = scaleY;
animationX.Duration = animationY.Duration = TimeSpan.FromMilliseconds(duration);
animationX.BeginTime = animationY.BeginTime = TimeSpan.FromMilliseconds(delay);
animationX.EasingFunction = animationY.EasingFunction = _defaultStoryboardEasingFunction;
animationSet.AddStoryboardAnimation(GetAnimationPath(transform, element, "ScaleX"), animationX);
animationSet.AddStoryboardAnimation(GetAnimationPath(transform, element, "ScaleY"), animationY);
}
else
{
var visual = animationSet.Visual;
visual.CenterPoint = new Vector3(centerX, centerY, 0);
var scaleVector = new Vector3(scaleX, scaleY, 1.0f);
if (duration <= 0)
{
animationSet.AddCompositionDirectPropertyChange("Scale", scaleVector);
return(animationSet);
}
var compositor = visual.Compositor;
if (compositor == null)
{
return(null);
}
var animation = compositor.CreateVector3KeyFrameAnimation();
animation.Duration = TimeSpan.FromMilliseconds(duration);
animation.DelayTime = TimeSpan.FromMilliseconds(delay);
animation.InsertKeyFrame(1f, scaleVector);
animationSet.AddCompositionAnimation("Scale", animation);
}
return(animationSet);
}
