internal static void Render(CompositionEngine compositionEngine, SharpDX.Direct2D1.RenderTarget renderTarget, FrameworkElement rootElement, Rectangle rectangle)
        {
            var rect = rectangle.GetBoundingRect(rootElement).ToSharpDX();
            var fill = rectangle.Fill.ToSharpDX(renderTarget, rect);
            var stroke = rectangle.Stroke.ToSharpDX(renderTarget, rect);

            //var layer = new Layer(renderTarget);
            //var layerParameters = new LayerParameters();
            //layerParameters.ContentBounds = rect;
            //renderTarget.PushLayer(ref layerParameters, layer);

            if (rectangle.RadiusX > 0 &&
                rectangle.RadiusY > 0)
            {
                var roundedRect = new SharpDX.Direct2D1.RoundedRect();
                roundedRect.Rect = rect;
                roundedRect.RadiusX = (float)rectangle.RadiusX;
                roundedRect.RadiusY = (float)rectangle.RadiusY;

                if (rectangle.StrokeThickness > 0 &&
                    stroke != null)
                {
                    var halfThickness = (float)(rectangle.StrokeThickness * 0.5);
                    roundedRect.Rect = rect.Eroded(halfThickness);

                    if (fill != null)
                    {
                        renderTarget.FillRoundedRectangle(roundedRect, fill);
                    }

                    renderTarget.DrawRoundedRectangle(
                        roundedRect,
                        stroke,
                        (float)rectangle.StrokeThickness,
                        rectangle.GetStrokeStyle(compositionEngine.D2DFactory));
                }
                else
                {
                    renderTarget.FillRoundedRectangle(roundedRect, fill);
                }
            }
            else
            {
                if (rectangle.StrokeThickness > 0 &&
                    stroke != null)
                {
                    var halfThickness = (float)(rectangle.StrokeThickness * 0.5);

                    if (fill != null)
                    {
                        renderTarget.FillRectangle(rect.Eroded(halfThickness), fill);
                    }

                    var strokeRect = rect.Eroded(halfThickness);
                    renderTarget.DrawRectangle(
                        strokeRect,
                        stroke,
                        (float)rectangle.StrokeThickness,
                        rectangle.GetStrokeStyle(compositionEngine.D2DFactory));
                }
                else
                {
                    renderTarget.FillRectangle(rect, fill);
                }
            }
            //renderTarget.PopLayer();
        }
        internal static async Task Render(CompositionEngine compositionEngine, SharpDX.Direct2D1.RenderTarget renderTarget, FrameworkElement rootElement, Rectangle rectangle)
        {
            var rect = rectangle.GetBoundingRect(rootElement).ToSharpDX();
            var fill = await rectangle.Fill.ToSharpDX(renderTarget, rect);
            var stroke = await rectangle.Stroke.ToSharpDX(renderTarget, rect);

            try
            {
                var layer = rectangle.CreateAndPushLayerIfNecessary(renderTarget, rootElement);

                if (rectangle.RadiusX > 0 &&
                    rectangle.RadiusY > 0)
                {
                    var roundedRect = new SharpDX.Direct2D1.RoundedRectangle();
                    roundedRect.Rect = rect;
                    roundedRect.RadiusX = (float)rectangle.RadiusX;
                    roundedRect.RadiusY = (float)rectangle.RadiusY;

                    if (rectangle.StrokeThickness > 0 &&
                        stroke != null)
                    {
                        var halfThickness = (float)(rectangle.StrokeThickness * 0.5);
                        roundedRect.Rect = rect.Eroded(halfThickness);

                        if (fill != null)
                        {
                            renderTarget.FillRoundedRectangle(roundedRect, fill);
                        }

                        renderTarget.DrawRoundedRectangle(
                            roundedRect,
                            stroke,
                            (float)rectangle.StrokeThickness,
                            rectangle.GetStrokeStyle(compositionEngine.D2DFactory));
                    }
                    else
                    {
                        renderTarget.FillRoundedRectangle(roundedRect, fill);
                    }
                }
                else
                {
                    if (rectangle.StrokeThickness > 0 &&
                        stroke != null)
                    {
                        var halfThickness = (float)(rectangle.StrokeThickness * 0.5);

                        if (fill != null)
                        {
                            renderTarget.FillRectangle(rect.Eroded(halfThickness), fill);
                        }

                        var strokeRect = rect.Eroded(halfThickness);
                        renderTarget.DrawRectangle(
                            strokeRect,
                            stroke,
                            (float)rectangle.StrokeThickness,
                            rectangle.GetStrokeStyle(compositionEngine.D2DFactory));
                    }
                    else
                    {
                        renderTarget.FillRectangle(rect, fill);
                    }
                }

                if (layer != null)
                {
                    renderTarget.PopLayer();
                    layer.Dispose();
                }
            }
            finally
            {
                if (fill != null)
                    fill.Dispose();
                if (stroke != null)
                    stroke.Dispose();
            }
        }