title: Enable QLabel to shrink even if it truncates text
body: <p>How can I get a QLabel to be resized even if it means truncating its containing text? I have a QLabel stretching the whole horizontal space of a Widget. When setting its text I make sure it is correctly truncated, ie getting its FontMetrics and Width and using metrics.elidedText().</p>
  
  <p>But when the user resizes the widget the Label doesn't allow it to shrink any further since it would truncate its text. </p>
  
  <p>Any ideas how to solve this? The simplest solution I think would be to somehow tell the QLabel to always shrink and then catch the resize event and correctly format the text - I just have no idea how to do the first part (different size policies don't help)</p>