public TracingTimeline(State vsWindowState, IMGUIContainer imguiContainer)
 {
     m_VSWindowState  = vsWindowState;
     m_ImguiContainer = imguiContainer;
     m_TimeArea       = new TimeArea();
     m_Overlay        = new AnimEditorOverlay();
     m_State          = new TimelineState(m_TimeArea);
     m_Overlay.state  = m_State;
 }
 public TimelineState(TimeArea timeArea)
 {
     m_TimeArea = timeArea;
 }