static <A extends JComponent> awtCalcContinuously(A component, Runnable runnable) {
  if (runnable == null) ret component;
  
  new SingleThread thread;
  new BoolVar visible;
  var info = _threadInfo();
  Runnable r2 = r {
    _threadInheritInfo(info);
    while ping (visible!) runnable.run();
  });
  
  bindToComponent(component,
    -> { visible.set(); thread.go(theLoop); },
    -> visible.clear());

  ret component;
}