private static void HandleUitabcontainerEvent(WidgetEvent ev)
    {
        UIWidget widget = (UIWidget)ev.Target;
        string   refid  = (string)ev.RefID;

        if (widget.Equals(null))
        {
            return;
        }
        if (ev.Type == UI_EVENT_TYPE.UI_EVENT_TYPE_CLICK)
        {
            if (widget.GetId() == "uitabcontainercode")
            {
                AtomicMain.AppLog("UITabContainer support : " + widget.GetId() + " was pressed ");
                AtomicMain.ViewCode("Components/code_uitabcontainer.cs", widget.GetParent());
            }
            if (widget.GetId() == "uitabcontainerlayout")
            {
                AtomicMain.AppLog("UITabContainer support : " + widget.GetId() + " was pressed ");
                AtomicMain.ViewCode("Scenes/layout_uitabcontainer.ui.txt", widget.GetParent());
            }


            if (widget.GetId() == "uitabcontainerremove")
            {
                AtomicMain.AppLog("UITabContainer action : " + widget.GetId() + " was pressed ");
                UITabContainer tcx     = (UITabContainer)widget.FindWidget("UITabContainerDemo");
                int            current = tcx.GetCurrentPage();
                tcx.DeletePage(current);
            }
            if (widget.GetId() == "uitabcontaineradd")
            {
                AtomicMain.AppLog("UITabContainer action : " + widget.GetId() + " was pressed ");
                UITabContainer tcx = (UITabContainer)widget.FindWidget("UITabContainerDemo");
                tcx.AddTabPageFile("New File", "Scenes/sheet.ui.txt");
            }
            if (widget.GetId() == "uitabcontainermake")
            {
                AtomicMain.AppLog("UITabContainer action : " + widget.GetId() + " was pressed ");
                var            cache = GetSubsystem <ResourceCache>();
                UITabContainer tcx   = (UITabContainer)widget.FindWidget("UITabContainerDemo");
                UILayout       lo    = new UILayout();
                lo.SetLayoutConfig("YAGAC");     // YACAC!
                UIEditField myeditfield = new UIEditField();
                myeditfield.SetGravity(UI_GRAVITY.UI_GRAVITY_ALL);
                myeditfield.SetMultiline(true);
                File   filex = cache.GetFile("Components/code_uitabcontainer.cs");
                String textx = filex.ReadText();
                filex.Close();
                myeditfield.SetText(textx);
                UIFontDescription myfont = new UIFontDescription();  // put in a coder font
                myfont.SetSize(16);
                myfont.SetId("Vera");
                myeditfield.SetFontDescription(myfont);
                lo.AddChild(myeditfield);
                tcx.AddTabPageWidget("New Code", lo);
            }
            if (widget.GetId() == "uitabcontainerundock")
            {
                AtomicMain.AppLog("UITabContainer action : " + widget.GetId() + " was pressed ");
                UITabContainer tcx     = (UITabContainer)widget.FindWidget("UITabContainerDemo");
                int            current = tcx.GetCurrentPage();
                tcx.UndockPage(current);
            }
            if (widget.GetId() == "uitabcontainerredock")
            {
                AtomicMain.AppLog("UITabContainer action : " + widget.GetId() + " was pressed ");
                UITabContainer tcx = (UITabContainer)widget.FindWidget("UITabContainerDemo");
                if (!tcx.DockWindow("tab1"))
                {
                    if (!tcx.DockWindow("tab2"))
                    {
                        if (!tcx.DockWindow("tab3"))
                        {
                            if (!tcx.DockWindow("New File"))
                            {
                                if (!tcx.DockWindow("New Code"))
                                {
                                    AtomicMain.AppLog("UITabContainer action : no more windows to dock.");
                                }
                            }
                        }
                    }
                }
            }
        }
    }