On 10/11/2012 10:16 AM, Sorvig Morten wrote: > > On Oct 11, 2012, at 9:36 AM, Samuel Rødal <[email protected]> > wrote: > >> On 10/11/2012 08:23 AM, Ziller Eike wrote: >>> >>> On 10.10.2012, at 16:56, Olivier Goffart wrote: >>> >>> If you'd now be able to change the unit in Qt to "pixel metrics" for >>> certain widgets (and optionally sub widgets) where you really want to >>> take advantage of each and every pixel in e.g. painting code, then every >>> case would be covered. (And you could decide to do what you suggest.) >> >> Agreed, it definitely needs to be possible to turn off the 2x2 scaling >> for widgets that _do_ care about individual device pixels. > > How about: > > QPainter p(this); > qreal scaleFactor = this->windowHandle()->dpiScaleFactor(); > p.scale(1.0 / scaleFactor, 1.0 / scaleFactor); > QRect pxelRect(QPoint(0, 0), this->size() * scaleFactor); > // paint within pxelRect > > A bit cumbersome, but it is a special case. Also, we need to make sure the > call to scale cancel out properly with the 2x device scale and that the final > transform has a proper QTransform::TransformationType .
That might be acceptable :) -- Samuel _______________________________________________ Development mailing list [email protected] http://lists.qt-project.org/mailman/listinfo/development
