title: QT Layout - initial directions
body: <p>I am new to QT. I'm trying to understand the layout mechanism by trying to implement this small window seen below. It has the following elements under the QWidget that's the main window:</p>
  
  <ol>
  <li>One big QWidget that stretches on all the client area.</li>
  <li>Two QWidget containers on the top of the window. Both should have the same height, but the right one stretches horizontally, as the window grows/shrinks.</li>
  <li>one button container widget on the top right, with fixed height and width</li>
  <li>Large QWidget container filling the rest of the client area, that should resize as the window resizes.</li>
  </ol>
  
  <p>The parent window itself is resizeable.</p>
  
  <p>I'm looking for hints as to what layout I should use. How do I achieve this programatically? define what stretches automatically, what stays with a fix size? and how the proportions are kept where they need to be kept.</p>
  
  <p>I'd appreciate any pointer you may have. </p>
  
  <p><img src="https://i.stack.imgur.com/Cs7vp.png" alt="What I&#39;m trying to achieve"></p>