private static Point GetAnchorPoint(Rect anchorRect, PopupAnchor edge)
{
double x, y;
if (edge.HasFlagCustom(PopupAnchor.Left))
{
x = anchorRect.X;
}
else if (edge.HasFlagCustom(PopupAnchor.Right))
{
x = anchorRect.Right;
}
else
{
x = anchorRect.X + anchorRect.Width / 2;
}
if (edge.HasFlagCustom(PopupAnchor.Top))
{
y = anchorRect.Y;
}
else if (edge.HasFlagCustom(PopupAnchor.Bottom))
{
y = anchorRect.Bottom;
}
else
{
y = anchorRect.Y + anchorRect.Height / 2;
}
return(new Point(x, y));
}
