title: Dynamically add QGraphicsEllipseItems
body: <p>Basically, each time I click on a graphicsview, I'd like a new QGraphicsEllipseItem to appear. The number is up to the user. Also, I'd like to query all of them in the end with pos() to get all their positions. The number of ellipses is not known before hand and their positions are movable by the ItemIsMovable flag. Anyone know how could I do this?</p>
  
  <p>I could make an array of pointers to the graphicsitem class but that would possibly waste memory and limit the number of ellipses I can make. Thanks.</p>