If you want to add your QtQuick view into a widget layout, you need to wrap it into a QWidget first and then add this

Qt Code: 
  1. // view constructed somewhere
  2. QQuickView *view ....
  3.  
  4. // create wrapper widget
  5. QWidget* viewContainer = QWidget::createWindowContainer(view);
  6.  
  7. // add widget as any other widget
  8. layout->addWidget(viewContainer)
To copy to clipboard, switch view to plain text mode 

With Qt 5.3 there will also be another alternative: QQuickWidget

Cheers,
_