title: Flex: Prevent scrollbar from covering content when automatically displayed
body: <p>I have a canvas in Flex that shall be able only to be scrolled in vertical direction, so I set the attributes of the canvas as follows:</p>
  
  <pre><code>verticalScrollPolicy="auto" horizontalScrollPolicy="off"
  </code></pre>
  
  <p>The problem here is that the vertical scrollbar covers the content when it appears - altough there is enough horizontal room left. I would have expected that the content size would have been automatically adjusted.</p>
  
  <p>When setting the vertical scroll policy to "on", no content is covered also.</p>
  
  <p>In case I set both scroll policies to 'auto' I also get a horizontal scroll bar just for scrolling to the area that is covered by the vertical scroll bar.</p>
  
  <p>Is there a workaround how I can relayout the content of the canvas when the vertical scroll bar is shown so that it does not cover any content?</p>