public static object GetChild(object source, int index)
{
if (DXMethods.IsChrome(source))
{
return(DXMethods.GetRoot(source));
}
if (DXMethods.IsIFrameworkRenderElementContext(source))
{
var control = DXMethods.Is(source, "RenderControlBaseContext", "DevExpress.Xpf.Core.Native", false) ? ((dynamic)source).Control : null;
var rcc = DXMethods.RenderChildrenCount(source);
if (index >= rcc)
{
if (index == rcc && control != null)
{
return(control);
}
return(null);
}
return(DXMethods.GetRenderChild(source, index));
}
if (source is Visual)
{
return(VisualTreeHelper.GetChild((Visual)source, index));
}
return(null);
}
public FREDrawingVisual(object context)
{
this.context = context;
using (var dc = this.RenderOpen()) {
DXMethods.Render(((dynamic)context).Factory, dc, context);
var controls = new object[] { context }.Concat(RenderTreeHelper.RenderDescendants(context));
foreach (object ctrl in controls)
{
if (!DXMethods.Is(ctrl, "RenderControlBaseContext", null, false))
{
continue;
}
var dctrl = ((dynamic)ctrl);
dc.PushTransform((dctrl).GeneralTransform);
dc.DrawRectangle(new VisualBrush((dctrl).Control), null, new Rect(new Point(0, 0), (dctrl).RenderSize));
dc.Pop();
}
dc.Close();
}
}
public static int GetChildrenCount(object source)
{
if (DXMethods.IsChrome(source))
{
object root = DXMethods.GetRoot(source);
if (root != null)
{
return(1);
}
}
if (DXMethods.IsIFrameworkRenderElementContext(source))
{
int hasControl = DXMethods.Is(source, "RenderControlBaseContext", "DevExpress.Xpf.Core.Native", false) && ((dynamic)source).Control != null ? 1 : 0;
return(DXMethods.RenderChildrenCount(source) + hasControl);
}
if (source is Visual)
{
return(VisualTreeHelper.GetChildrenCount((Visual)source));
}
return(0);
}
