private void GetPreviewSplitterPanel(out SplitterPanel panel, out int targetIndex, DockDirection dockDirection, ViewElement viewElement, FrameworkElement adornedElement, Orientation orientation)
{
targetIndex = -1;
panel = Microsoft.VisualStudio.PlatformUI.ExtensionMethods.FindAncestor <SplitterPanel>((Visual)adornedElement);
if (panel != null)
{
SplitterItem ancestor = Microsoft.VisualStudio.PlatformUI.ExtensionMethods.FindAncestor <SplitterItem>((Visual)adornedElement);
targetIndex = SplitterPanel.GetIndex((UIElement)ancestor);
}
MainSite mainSite = viewElement as MainSite;
if (mainSite == null)
{
return;
}
DockGroup dockGroup = mainSite.Child as DockGroup;
if (dockGroup == null || dockGroup.Orientation != orientation)
{
return;
}
panel = (SplitterPanel)null;
DependencyObject reference = (DependencyObject)adornedElement;
while (panel == null && reference != null)
{
reference = VisualTreeHelper.GetChild(reference, 0);
panel = reference as SplitterPanel;
}
if (panel == null)
{
return;
}
if (dockDirection == DockDirection.Left || dockDirection == DockDirection.FirstValue)
{
targetIndex = 0;
}
else
{
targetIndex = panel.Children.Count - 1;
}
}
