FirstFloor.ModernUI.Windows.Controls.FrameworkElementAdorner.DetermineY C# (CSharp) Method

        private double DetermineY() {
            switch (_child.VerticalAlignment) {
                case VerticalAlignment.Top:
                    if (_verticalAdornerPlacement == AdornerPlacement.Outside) {
                        return -_child.DesiredSize.Height + _offsetY;
                    }
                    return _offsetY;
                case VerticalAlignment.Bottom:
                    if (_verticalAdornerPlacement == AdornerPlacement.Outside) {
                        var adornedHeight = AdornedElement.ActualHeight;
                        return adornedHeight + _offsetY;
                    } else {
                        var adornerHeight = _child.DesiredSize.Height;
                        var adornedHeight = AdornedElement.ActualHeight;
                        var x = adornedHeight - adornerHeight;
                        return x + _offsetY;
                    }
                case VerticalAlignment.Center: {
                        var adornerHeight = _child.DesiredSize.Height;
                        var adornedHeight = AdornedElement.ActualHeight;
                        var x = adornedHeight / 2 - adornerHeight / 2;
                        return x + _offsetY;
                    }
                case VerticalAlignment.Stretch:
                    return 0d;
                default:
                    return 0d;
            }
        }