本文整理汇总了C#中Visual.GetSelfAndVisualAncestors方法的典型用法代码示例。如果您正苦于以下问题:C# Visual.GetSelfAndVisualAncestors方法的具体用法?C# Visual.GetSelfAndVisualAncestors怎么用?C# Visual.GetSelfAndVisualAncestors使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Visual
的用法示例。
在下文中一共展示了Visual.GetSelfAndVisualAncestors方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Track
/// <summary>
/// Starts tracking the specified visual relative to another control.
/// </summary>
/// <param name="visual">The visual.</param>
/// <param name="relativeTo">The control that the tracking should be relative to.</param>
/// <returns>An observable that returns the tracked bounds.</returns>
public IObservable<TransformedBounds> Track(Visual visual, Visual relativeTo)
{
var visuals = visual.GetSelfAndVisualAncestors()
.TakeWhile(x => x != relativeTo)
.Reverse();
var boundsSubscriptions = new List<IObservable<Rect>>();
foreach (var v in visuals.Cast<Visual>())
{
boundsSubscriptions.Add(v.GetObservable(Visual.BoundsProperty));
}
var bounds = boundsSubscriptions.CombineLatest().Select(ExtractBounds);
// TODO: Track transform and clip rectangle.
return bounds.Select(x => new TransformedBounds((Rect)x, (Rect)new Rect(), (Matrix)Matrix.Identity));
}