UnityEditor.LayerVisibilityWindow.OnGUI C# (CSharp) Method

        internal void OnGUI()
        {
            if (Event.current.type != EventType.Layout)
            {
                if (s_Styles == null)
                {
                    s_Styles = new Styles();
                }
                Rect position = new Rect(1f, 1f, base.position.width - 2f, base.position.height - 2f);
                Rect viewRect = new Rect(0f, 0f, 1f, this.m_ContentHeight);
                bool flag = this.m_ContentHeight > position.height;
                float width = position.width;
                if (flag)
                {
                    width -= 14f;
                }
                this.m_ScrollPosition = GUI.BeginScrollView(position, this.m_ScrollPosition, viewRect);
                this.Draw(width);
                GUI.EndScrollView();
                GUI.Label(new Rect(0f, 0f, base.position.width, base.position.height), GUIContent.none, s_Styles.background);
                if (Event.current.type == EventType.MouseMove)
                {
                    Event.current.Use();
                }
                if ((Event.current.type == EventType.KeyDown) && (Event.current.keyCode == KeyCode.Escape))
                {
                    base.Close();
                    GUIUtility.ExitGUI();
                }
            }
        }