FairyGUI.GButton.__rollout C# (CSharp) Method

        private void __rollout()
        {
            if (_buttonController == null || !_buttonController.HasPage(OVER))
                return;

            _over = false;
            if (_down)
                return;

            if (this.grayed && _buttonController.HasPage(DISABLED))
                return;

            SetState(_selected ? DOWN : UP);
        }