On Monday, May 26, 2014 17:47:35 Teo Mrnjavac wrote: > On Tuesday, May 20, 2014 15:16:25 Teo Mrnjavac wrote: > > On Tuesday, May 20, 2014 14:55:16 David Edmundson wrote: > > > On Tue, May 20, 2014 at 2:28 PM, Teo Mrnjavac <t...@kde.org> wrote: > > > > Another important issue is that currently the only tested and nicely > > > > working values for QT_HIGHDPI_SCALE_FACTOR are 1.0 and 2.0, i.e. Mac > > > > OS > > > > style scaling. > > > > > > I can't imagine it being too big a problem; things only look bad once > > > they're past a certain point. > > > > > > > produce decent results and minimize glitches, but the only way to be > > > > sure > > > > of that is trying it out. I'll try to give his branch a spin when I > > > > get > > > > the chance. > > > > > > Please do, and report back. > > > > Will do. > > High DPI status update, part 2. > > So I've managed to build Morten's highdpi branch [1] and (most of) the > kdesrc- build roster on top of it. Right now the highdpi branch tracks > stable. As hinted last week, this branch scales up all UI elements by a > scaling factor. On OSX this scaling factor is 1.0 or 2.0, in line with > Apple's retina scaling policy, but on X11 it doesn't have to be an integer. > Also on X11 there is no code that tries to guess this scaling factor, > relying instead on an environment variable QT_HIGHDPI_SCALE_FACTOR. > > I've made some screenshots of Kate with different values of > QT_HIGHDPI_SCALE_FACTOR. All of them are with kwin 4 and unless otherwise > noted, the style is Fusion. > > http://wstaw.org/m/2014/05/26/plasma-desktopIo2083.png > QT_HIGHDPI_SCALE_FACTOR not set. > Font size in pixels is big because the fonts DPI is from the Xft.dpi setting > which in turn comes from my Nvidia driver. The window opens up way too > small for my screen. > > http://wstaw.org/m/2014/05/26/plasma-desktopni2083.png > QT_HIGHDPI_SCALE_FACTOR=1.0 > It looks like the scale factor overrides the Xft DPI setting. > > http://wstaw.org/m/2014/05/26/plasma-desktopaQ2083.png > QT_HIGHDPI_SCALE_FACTOR=1.5 > Decent overall widget geometry, window size also good automatically. Bad > pixmaps, font kerning issues to be fixed in Qt. > > http://wstaw.org/m/2014/05/26/plasma-desktoppN2083.png > QT_HIGHDPI_SCALE_FACTOR=1.75 > > http://wstaw.org/m/2014/05/26/plasma-desktopLe2083.png > QT_HIGHDPI_SCALE_FACTOR=2.0 > Pixmaps still rough, fonts look better. This is arguably the right scale > factor for my 215ppi panel, and the overall result is visually nice. > > http://wstaw.org/m/2014/05/26/plasma-desktopTf2083.png > QT_HIGHDPI_SCALE_FACTOR=3.0 > > http://wstaw.org/m/2014/05/26/plasma-desktopCs2083.png > QT_HIGHDPI_SCALE_FACTOR=2.0 > With Oxygen style. > > Feel free to let me know if you can think of ways to break it, I can try and > report back with screenshots. > > As for generating the QT_HIGHDPI_SCALE_FACTOR, we can have some heuristics > based on Xft DPI (if set), which could then be overridden in the Fonts KCM > or some other KCM. Multiples of .25 or even .5 would probably be just fine, > so if we scale pixmaps to increments of .5 and if the font rendering issues > are fixed upstream, this could work nicely. > > I'm still curious what happens in Plasma with this scaling factor, but > unfortunately plasma-framework didn't build for me with the highdpi branch. > I'll investigate and report back if there's breakage. > > [1] https://github.com/msorvig/qt5-qtbase-highdpi > > Cheers,
Something I forgot yesterday: this stuff is also on Gerrit [1] as of a few days ago. [1] https://codereview.qt-project.org/#change,86107 Cheers, -- Teo Mrnjavac http://teom.org | t...@kde.org _______________________________________________ Plasma-devel mailing list Plasma-devel@kde.org https://mail.kde.org/mailman/listinfo/plasma-devel
