The QSinglePointEvent ctor assumes that the given globalPos is correct,
so it was wrong that the QHoverEvent ctor passed along a local position
as global. It's better to require globalPos as an argument; and in fact
it seems that everywhere we construct a QHoverEvent, global position is
available, or possible to get by transformation (which is better than
resorting to QCursor::pos()).
Also, don't convert to QPoint: pointer events have qreal resolution and
there's no reason to truncate them.
Fixes: QTBUG-100324
Change-Id: I919455da36265988d3d149eb97563c9ed0d2c660
Pick-to: 6.3
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
0a64a044b6