public ButtonsWindow(Rect rect, GUIContent content, GUIStyle style, params GUILayoutOption[] options)
     : base(rect, content, style)
 {
     Options       = options;
     ButtonContent = new GUIContent("Buttons");
     buttons       = new List <ButtonInfo>();
     foreach (var button in DescriptorData.getActionTypes())
     {
         buttons.Add(new ButtonInfo(button));
     }
 }