title: Qt drag resize widget?
body: <p>Suppose I have two Qt widgets in a vertical layout inside a parent widget.</p>
  
  <p>Is there someway to add a control "border" between them such that when you click and drag the border area in between the two widegets you can change the relative area of the parent they take?</p>
  
  <p>That is if you drag it up then the bottom widget gets resized bigger and the top widget gets resized smaller.</p>