Order of elemetns with QGraphicsScene::itemAt

[Morea]

Hi.
If there are several items at a point, the item that will be returned with the QGraphicsScene::itemAt function will be the one with the highest zValue, right?
But what if there is two QGraphicsItems, call them A and B where A is parent to B and B has lower zValue, which one will be returned?

In this situation I would really like B to be returned, if itemAt does not do this, how do you do it then?

[jacek]

You could try to use item( const QPointF & ) method to get all items at that position and then something like this:

QGraphicsItem *item = items.first();
foreach( QGraphicsItem *tmpItem, items ) {
   if( tmpItem->parentItem() == item ) {
      item = tmpItem;
   }
}

QGraphicsItem *item = items.first();
foreach( QGraphicsItem *tmpItem, items ) {
   if( tmpItem->parentItem() == item ) {
      item = tmpItem;
   }
}

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[Bitto]

See the docs for QGraphicsItem::zValue(), it's explained in detail there. Children are always on top of parents, and because of this, children are always listed before parents in the itemAt() and items() functions.

http://doc.trolltech.com/4.2/qgraphi...html#setZValue