> > The approaches available currently either > > > > 1) scale everything after rendering (eg with SetProcessDPIAware()) > > 2) scale coordinates to screen metrics before rendering > > (QApplication::setAttribute(Qt::AA_EnableHighDpiScaling)) > > > > The first approach gives a blurry result because of up/down scaling and is > > not satisfying. > > > > The second approach scales all coordinates, making it impossible to specify > > 'a one/two pixel border' without > > that getting scaled too. Additionally, the AA_EnableHighDpiScaling will > > only apply integer scaling, so on a > > screen with 150% scaling, the widget is scaled to 200%. > > I had a request to explain the problem with screenshots, so I created > > https://bugreports.qt.io/browse/QTBUG-63402 > > with screenshots showing the previously posted code with the available > approaches and APIs to solving > the problem, along with a screenshot showing the result of this proposal.
My crazy thought of the day: The HTML 5 Canvas blits text 0.5 pixels offset. How would that change the top 150% render? _______________________________________________ Development mailing list [email protected] http://lists.qt-project.org/mailman/listinfo/development
