title: How to control QListWidget selection
body: <p>I implement a pop up list with QListWidget. But I found that the selection of list is done when mouse pressed on an item. But what I would like to is selection on click. How can I change it? (without delegate)</p>
  
  <p>Update:</p>
  
  <p>I have a subclass of QListWidget. The selection of this list is done (emit of signal, change of  selectedItems(), change of Qss QListWidget::item:selected{} etc.) when I hold the left button on an item. What I want is make these changes when release mouse on an item, not press and hold on it. </p>