on constructVisualizerManager  
  return(createManager(#visualizer_manager, getClassVariable("visualizer.manager.class")))
end

on deconstructVisualizerManager  
  return(removeManager(#visualizer_manager))
end

on getVisualizerManager  
  tMgr = getObjectManager()
  if not tMgr.managerExists(#visualizer_manager) then
    return(constructVisualizerManager())
  end if
  return(tMgr.getManager(#visualizer_manager))
end

on createVisualizer tID, tLayout, tLocX, tLocY 
  return(getVisualizerManager().create(tID, tLayout, tLocX, tLocY))
end

on removeVisualizer tID 
  return(getVisualizerManager().Remove(tID))
end

on getVisualizer tID 
  return(getVisualizerManager().GET(tID))
end

on visualizerExists tID 
  return(getVisualizerManager().exists(tID))
end

on printVisualizers  
  return(getVisualizerManager().print())
end

on handlers  
  return([])
end