FairyGUI.GComponent.ChildStateChanged C# (CSharp) Method

        internal void ChildStateChanged(GObject child)
        {
            if (_buildingDisplayList)
                return;

            int cnt = _children.Count;

            if (child is GGroup)
            {
                for (int i = 0; i < cnt; ++i)
                {
                    GObject g = _children[i];
                    if (g.group == child)
                        ChildStateChanged(g);
                }
                return;
            }

            if (child.displayObject == null)
                return;

            if (child.finalVisible)
            {
                if (child.displayObject.parent == null)
                {
                    if (_childrenRenderOrder == ChildrenRenderOrder.Ascent)
                    {
                        int index = 0;
                        for (int i = 0; i < cnt; i++)
                        {
                            GObject g = _children[i];
                            if (g == child)
                                break;

                            if (g.displayObject != null && g.displayObject.parent != null)
                                index++;
                        }
                        container.AddChildAt(child.displayObject, index);
                    }
                    else if (_childrenRenderOrder == ChildrenRenderOrder.Descent)
                    {
                        int index = 0;
                        for (int i = cnt - 1; i >= 0; i--)
                        {
                            GObject g = _children[i];
                            if (g == child)
                                break;

                            if (g.displayObject != null && g.displayObject.parent != null)
                                index++;
                        }
                        container.AddChildAt(child.displayObject, index);
                    }
                    else
                    {
                        container.AddChild(child.displayObject);

                        UpdateContext.OnBegin -= _buildDelegate;
                        UpdateContext.OnBegin += _buildDelegate;
                    }
                }
            }
            else
            {
                if (child.displayObject.parent != null)
                {
                    container.RemoveChild(child.displayObject);
                    if (_childrenRenderOrder == ChildrenRenderOrder.Arch)
                    {
                        UpdateContext.OnBegin -= _buildDelegate;
                        UpdateContext.OnBegin += _buildDelegate;
                    }
                }
            }
        }