UnityEditor.Graphs.ParameterControllerView.OnGUI C# (CSharp) Method

        public void OnGUI(Rect rect)
        {
            if (s_Styles == null)
            {
                s_Styles = new Styles();
            }
            Event current = Event.current;
            if ((current.type == EventType.MouseDown) && rect.Contains(current.mousePosition))
            {
                this.m_HadKeyFocusAtMouseDown = this.m_ParameterList.HasKeyboardControl();
            }
            this.KeyboardHandling();
            if (this.m_Host.animatorController != null)
            {
                this.DoParameterList();
            }
        }