internal static bool Within(this Point referencePoint, UIElement referenceElement, FrameworkElement targetElement, bool ignoreVertical)
{
Point position = referenceElement.Translate(targetElement, referencePoint);
return(position.X > 0 && position.X < targetElement.ActualWidth &&
(ignoreVertical ||
(position.Y > 0 && position.Y < targetElement.ActualHeight)
));
}
private void EnsureChildClip(UIElement child, double frozenLeftEdge)
{
double childLeftEdge = child.Translate(this, new Point(0, 0)).X;
if (frozenLeftEdge > childLeftEdge)
{
double xClip = Math.Round(frozenLeftEdge - childLeftEdge);
RectangleGeometry rg = new RectangleGeometry();
rg.Rect = new Rect(xClip, 0, Math.Max(0, child.RenderSize.Width - xClip), child.RenderSize.Height);
child.Clip = rg;
}
else
{
child.Clip = null;
}
}
internal static bool Within(this Point referencePoint, UIElement referenceElement, FrameworkElement targetElement, bool ignoreVertical)
{
Point position = referenceElement.Translate(targetElement, referencePoint);
return position.X > 0 && position.X < targetElement.ActualWidth
&& (ignoreVertical
|| (position.Y > 0 && position.Y < targetElement.ActualHeight)
);
}
