2015-06-30 12:45 GMT+03:00 Vignesh Raman <[email protected]>: > Hi Konstantin, > > Sorry to open this topic again. > > On Mon, Mar 2, 2015 at 7:19 PM, Konstantin Ritt <[email protected]> wrote: > > 2015-03-02 21:52 GMT+04:00 Vignesh Raman <[email protected]>: > >> > >> I checked this thai font issue on a board with Qt 4.7.4 libs and this > >> happens with one particular font DejaVuSans.ttf. > >> When I tried DejaVuSansCondensed.ttf font the issue is not seen. I > >> wonder any of the harfbuzz-thai calls are not invoked for DejaVuSans > >> font? > > > > > > Might be a font issue. I already seen bugs related to an incorrect > metrics > > in DejaVu fonts. > > How to check if the font has incorrect metrics? >
Not with Qt itself. Try i.e. FontForge. > > > >> > >> Does font make a difference in harfbuzz bundled code > >> (src/3rdpart/hafbuzz) in Qt. > > > > > > Sure it does. Try inspecting the font's tables and metrics. > > Is there a way to tell that the font ascent, descent values are incorrect? > Is there a ratio between ascent and descent that Qt expects to render > font correctly? > Nope. Regards, Konstantin
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