Revert "Don't rely on mapFromGlobal in QGraphicsScenePrivate::itemsAtPosition."

This reverts commit 7c0d15a22266a425c9e9ac0120d6774e120fe01e.
The commit caused a regression whereby tooltips may be shown even if the
mouse is not over the item if it has the Qt::ItemIgnoresTransformations
flag and the QGraphicsView had been scaled.

Task-number: QTBUG-17517
Task-number: QTBUG-22663
Change-Id: Ib7fd788d9712c5e659fe07182f9505a4eb135ab2
Reviewed-by: Andy Shaw <andy.shaw@digia.com>
Reviewed-by: Robin Burchell <robin+qt@viroteck.net>
(cherry picked from commit 15c14584199dc43e4a309fc331f3144009008128)
This commit is contained in:
Jonathan Liu 2012-02-24 00:42:34 +11:00 committed by Qt by Nokia
parent 70578e4fc7
commit 286229ca14

View File

@ -1082,7 +1082,7 @@ void QGraphicsScenePrivate::enableMouseTrackingOnViews()
/*!
Returns all items for the screen position in \a event.
*/
QList<QGraphicsItem *> QGraphicsScenePrivate::itemsAtPosition(const QPoint &/*screenPos*/,
QList<QGraphicsItem *> QGraphicsScenePrivate::itemsAtPosition(const QPoint &screenPos,
const QPointF &scenePos,
QWidget *widget) const
{
@ -1091,12 +1091,16 @@ QList<QGraphicsItem *> QGraphicsScenePrivate::itemsAtPosition(const QPoint &/*sc
if (!view)
return q->items(scenePos, Qt::IntersectsItemShape, Qt::DescendingOrder, QTransform());
const QRectF pointRect(scenePos, QSizeF(1, 1));
const QRectF pointRect(QPointF(widget->mapFromGlobal(screenPos)), QSizeF(1, 1));
if (!view->isTransformed())
return q->items(pointRect, Qt::IntersectsItemShape, Qt::DescendingOrder);
const QTransform viewTransform = view->viewportTransform();
return q->items(pointRect, Qt::IntersectsItemShape,
if (viewTransform.type() <= QTransform::TxScale) {
return q->items(viewTransform.inverted().mapRect(pointRect), Qt::IntersectsItemShape,
Qt::DescendingOrder, viewTransform);
}
return q->items(viewTransform.inverted().map(pointRect), Qt::IntersectsItemShape,
Qt::DescendingOrder, viewTransform);
}