private void StartClipAnimation(CompositionEllipseGeometry ellipseGeometry, TimeSpan delayTime)
{
var compositor = Window.Current.Compositor;
var animation = compositor.CreateVector2KeyFrameAnimation();
var easing = compositor.CreateCubicBezierEasingFunction(new Vector2(0.1f, 0.9f), new Vector2(0.2f, 1f));
animation.DelayTime = delayTime;
animation.Duration = TimeSpan.FromSeconds(0.7);
animation.InsertKeyFrame(1, new Vector2(600, 600));
ellipseGeometry.StartAnimation(nameof(CompositionEllipseGeometry.Radius), animation);
}
protected override void OnValueChanged(double oldValue, double newValue)
{
//if (newValue > 0)
//{
// newValue = Math.Max(newValue, 0.0001);
//}
if (double.IsNaN(newValue))
{
newValue = 0;
}
if (newValue > 0 && newValue < 0.05)
{
newValue = 0.05;
}
if (_foreverAnimation != null)
{
if (newValue > 0 && newValue < 1)
{
if (!_spinning)
{
_spinning = true;
_visual.RotationAngleInDegrees = 230; // 202
_visual.StartAnimation("RotationAngleInDegrees", _foreverAnimation);
}
}
//else if (_spinning)
//{
// _spinning = false;
// _visual.StopAnimation("RotationAngleInDegrees");
//}
}
if (_ellipse != null)
{
var diff = Math.Abs(oldValue - newValue);
if (diff < 0.10 && newValue < 1)
{
_ellipse.TrimStart = 0;
_ellipse.TrimEnd = MathF.Max(0, MathF.Min(1, (float)newValue));
}
else
{
var linear = Window.Current.Compositor.CreateLinearEasingFunction();
var trimStart = Window.Current.Compositor.CreateScalarKeyFrameAnimation();
var trimEnd = Window.Current.Compositor.CreateScalarKeyFrameAnimation();
if (newValue < 1)
{
//_ellipse.TrimStart = 0;
//_ellipse.TrimEnd = MathF.Max(0, MathF.Min(1, (float)newValue));
trimStart.InsertKeyFrame(1, 0, linear);
trimEnd.InsertKeyFrame(1, MathF.Max(0, MathF.Min(1, (float)newValue)), linear);
_ellipse.StartAnimation("TrimStart", trimStart);
_ellipse.StartAnimation("TrimEnd", trimEnd);
}
else
{
//_ellipse.TrimStart = 1;
//_ellipse.TrimEnd = 1;
trimStart.InsertKeyFrame(1, ShrinkOut ? 1 : 0, linear);
trimEnd.InsertKeyFrame(1, 1, linear);
var batch = Window.Current.Compositor.CreateScopedBatch(CompositionBatchTypes.Animation);
batch.Completed += (s, args) =>
{
if (_foreverAnimation != null && _spinning)
{
_spinning = false;
_visual.StopAnimation("RotationAngleInDegrees");
}
Completed?.Invoke(this, EventArgs.Empty);
};
_ellipse.StartAnimation("TrimStart", trimStart);
_ellipse.StartAnimation("TrimEnd", trimEnd);
batch.End();
}
}
}
//if (newValue is >= 1.0 or <= 0.0)
//{
// Visibility = Visibility.Collapsed;
//}
//else
//{
// Visibility = Visibility.Visible;
//}
}