private DoubleAnimation CreateTimeline(Widget view, string path, double from, double to)
{
var timeline = new DoubleAnimation
{
From = from,
To = to,
//EasingFunction = Interpolator,
Duration = Duration,
BeginTime = (TimeSpan)Delay,
};
Storyboard.SetTarget(timeline, view);
/*
#if WINDOWS_UWP
* Storyboard.SetTargetProperty(timeline, path);
#else
* Storyboard.SetTargetProperty(timeline, new PropertyPath(path));
#endif
*/
return(timeline);
}
/// <summary>
/// Create a <see cref="Storyboard"/> to be used to animate the view,
/// based on the animation configuration supplied at initialization
/// time and the new view position and size.
/// </summary>
/// <param name="view">The view to create the animation for.</param>
/// <param name="dimensions">The view dimensions.</param>
/// <returns>The storyboard.</returns>
protected override IObservable <Unit> CreateAnimationCore(Widget view, Dimensions dimensions)
{
/*
* var currentX = Canvas.GetLeft(view);
* var currentY = Canvas.GetTop(view);
* var currentWidth = view.Width;
* var currentHeight = view.Height;
*/
var currentX = view.GetDimensions().X;
var currentY = view.GetDimensions().Y;
var currentWidth = view.GetDimensions().Width;
var currentHeight = view.GetDimensions().Height;
var animateLocation = dimensions.X != currentX || dimensions.Y != currentY;
var animateSize = dimensions.Width != currentWidth || dimensions.Height != currentHeight;
if (!animateLocation && !animateSize)
{
return(null);
}
var storyboard = new Storyboard();
if (currentX != dimensions.X)
{
storyboard.Children.Add(
CreateTimeline(view, "(Canvas.Left)", currentX, dimensions.X));
}
if (currentY != dimensions.Y)
{
storyboard.Children.Add(
CreateTimeline(view, "(Canvas.Top)", currentY, dimensions.Y));
}
if (currentWidth != dimensions.Width)
{
var timeline = CreateTimeline(view, "Width", currentWidth, dimensions.Width);
#if WINDOWS_UWP
timeline.EnableDependentAnimation = true;
#endif
storyboard.Children.Add(timeline);
}
if (currentHeight != dimensions.Height)
{
var timeline = CreateTimeline(view, "Height", currentHeight, dimensions.Height);
#if WINDOWS_UWP
timeline.EnableDependentAnimation = true;
#endif
storyboard.Children.Add(timeline);
}
return(new StoryboardObservable(storyboard, () =>
{
/*
* Canvas.SetLeft(view, dimensions.X);
* Canvas.SetTop(view, dimensions.Y);
* view.Width = dimensions.Width;
* view.Height = dimensions.Height;
*/
view.SetDimensions(dimensions);
}));
}
