void ShowResizerOverlayWindow(LayoutGridResizerControl splitter)
        {
            _resizerGhost = new Border()
            {
                Background = splitter.BackgroundWhileDragging,
                Opacity    = splitter.OpacityWhileDragging
            };

            var areaElement            = _manager.GetAutoHideAreaElement();
            var modelControlActualSize = this._internalHost.TransformActualSizeToAncestor();

            Point ptTopLeftScreen = areaElement.PointToScreenDPIWithoutFlowDirection(new Point());

            var managerSize = areaElement.TransformActualSizeToAncestor();

            Size windowSize;

            if (_side == AnchorSide.Right || _side == AnchorSide.Left)
            {
                windowSize = new Size(
                    managerSize.Width - 25.0 + splitter.ActualWidth,
                    managerSize.Height);

                _resizerGhost.Width  = splitter.ActualWidth;
                _resizerGhost.Height = windowSize.Height;
                ptTopLeftScreen.Offset(25, 0.0);
            }
            else
            {
                windowSize = new Size(
                    managerSize.Width,
                    managerSize.Height - _model.AutoHideMinHeight - 25.0 + splitter.ActualHeight);

                _resizerGhost.Height = splitter.ActualHeight;
                _resizerGhost.Width  = windowSize.Width;
                ptTopLeftScreen.Offset(0.0, 25.0);
            }

            _initialStartPoint = splitter.PointToScreenDPIWithoutFlowDirection(new Point()) - ptTopLeftScreen;

            if (_side == AnchorSide.Right || _side == AnchorSide.Left)
            {
                Canvas.SetLeft(_resizerGhost, _initialStartPoint.X);
            }
            else
            {
                Canvas.SetTop(_resizerGhost, _initialStartPoint.Y);
            }

            Canvas panelHostResizer = new Canvas()
            {
                HorizontalAlignment = System.Windows.HorizontalAlignment.Stretch,
                VerticalAlignment   = System.Windows.VerticalAlignment.Stretch
            };

            panelHostResizer.Children.Add(_resizerGhost);


            _resizerWindowHost = new Window()
            {
                ResizeMode         = ResizeMode.NoResize,
                WindowStyle        = System.Windows.WindowStyle.None,
                ShowInTaskbar      = false,
                AllowsTransparency = true,
                Background         = null,
                Width         = windowSize.Width,
                Height        = windowSize.Height,
                Left          = ptTopLeftScreen.X,
                Top           = ptTopLeftScreen.Y,
                ShowActivated = false,
                Owner         = Window.GetWindow(this),
                Content       = panelHostResizer
            };

            _resizerWindowHost.Show();
        }
        void ShowResizerOverlayWindow(LayoutGridResizerControl splitter)
        {
            _resizerGhost = new Border()
            {
                Background = splitter.BackgroundWhileDragging,
                Opacity    = splitter.OpacityWhileDragging
            };

            int indexOfResizer = InternalChildren.IndexOf(splitter);

            var prevChild = InternalChildren[indexOfResizer - 1] as FrameworkElement;
            var nextChild = GetNextVisibleChild(indexOfResizer);

            var prevChildActualSize = prevChild.TransformActualSizeToAncestor();
            var nextChildActualSize = nextChild.TransformActualSizeToAncestor();

            var prevChildModel = (ILayoutPositionableElement)(prevChild as ILayoutControl).Model;
            var nextChildModel = (ILayoutPositionableElement)(nextChild as ILayoutControl).Model;

            Point ptTopLeftScreen = prevChild.PointToScreenDPIWithoutFlowDirection(new Point());

            Size actualSize;

            if (Orientation == System.Windows.Controls.Orientation.Horizontal)
            {
                actualSize = new Size(
                    prevChildActualSize.Width - prevChildModel.DockMinWidth + splitter.ActualWidth + nextChildActualSize.Width - nextChildModel.DockMinWidth,
                    nextChildActualSize.Height);

                _resizerGhost.Width  = splitter.ActualWidth;
                _resizerGhost.Height = actualSize.Height;
                ptTopLeftScreen.Offset(prevChildModel.DockMinWidth, 0.0);
            }
            else
            {
                actualSize = new Size(
                    prevChildActualSize.Width,
                    prevChildActualSize.Height - prevChildModel.DockMinHeight + splitter.ActualHeight + nextChildActualSize.Height - nextChildModel.DockMinHeight);

                _resizerGhost.Height = splitter.ActualHeight;
                _resizerGhost.Width  = actualSize.Width;

                ptTopLeftScreen.Offset(0.0, prevChildModel.DockMinHeight);
            }

            _initialStartPoint = splitter.PointToScreenDPIWithoutFlowDirection(new Point()) - ptTopLeftScreen;

            if (Orientation == System.Windows.Controls.Orientation.Horizontal)
            {
                Canvas.SetLeft(_resizerGhost, _initialStartPoint.X);
            }
            else
            {
                Canvas.SetTop(_resizerGhost, _initialStartPoint.Y);
            }

            Canvas panelHostResizer = new Canvas()
            {
                HorizontalAlignment = System.Windows.HorizontalAlignment.Stretch,
                VerticalAlignment   = System.Windows.VerticalAlignment.Stretch
            };

            panelHostResizer.Children.Add(_resizerGhost);


            _resizerWindowHost = new Window()
            {
                SizeToContent      = System.Windows.SizeToContent.Manual,
                ResizeMode         = ResizeMode.NoResize,
                WindowStyle        = System.Windows.WindowStyle.None,
                ShowInTaskbar      = false,
                AllowsTransparency = true,
                Background         = null,
                Width         = actualSize.Width,
                Height        = actualSize.Height,
                Left          = ptTopLeftScreen.X,
                Top           = ptTopLeftScreen.Y,
                ShowActivated = false,
                //Owner = Window.GetWindow(this),
                Content = panelHostResizer
            };
            _resizerWindowHost.Loaded += (s, e) =>
            {
                _resizerWindowHost.SetParentToMainWindowOf(this);
            };
            _resizerWindowHost.Show();
        }