title: Getting the size of a QGraphicsView
body: <p>I want to know the size of a certain <code>QGraphicsView</code>. Its size isn't fixed because the widget is part of a grid layout. I tried using <code>this-&gt;ui-&gt;myGraphicsView-&gt;width()</code> and its height equivalent but these values aren't accurate.</p>
  
  <p>How can I get the current size of a <code>QGraphicsView</code>?</p>