On 17 March 2017 at 16:01, Patrick Stinson <patrickk...@gmail.com> wrote: > Hi there! > > I am implementing handwriting with the apple pencil and am double-buffering > each stroke on a QImage before passing the resulting pixmap and bounding rect > for the stroke to a QGraphicsItem. The problem is that painting to the QImage > is not at retina resolution which is what you get when you paint directly to > the scene via QGraphicsItem::paint. > > Does anyone have a suggestion for how to handle this? > > Should I just double the QImage size and then translate the coordinates > appropriately? Then half the target rect in QPainter::drawPixmap(const Rect > &target, const QPixmap &, const QSize &source)? Or is there a more elegant > way to do it? >
Have you tried QGraphicsItem::DeviceCoordinateCache ? My 2 cents > Thanks! > -P > > > _______________________________________________ > Interest mailing list > Interest@qt-project.org > http://lists.qt-project.org/mailman/listinfo/interest _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
