[Development] Supporting freedesktop icon themes in Qt5
adys.wh at gmail.com
Thu May 10 02:55:43 CEST 2012
Qt currently does not properly support icon themes on Linux. This is a big
issue here for Razor  as we're a non-KDE-based DE trying to use pure
Qt. QIcon::fromTheme has some heuristics for KDE and Gnome, but other DEs
are not supported. 
We'd like to get this fixed for Qt5.0. My first attempt at getting it fixed
was through a proposal for icon theme configuration, which was (rightly)
rejected by the GTK team. After talking with them, they explained how they
use xsettings for it  -- kde has a kde-xsettings plugin which implements
xsettings on KDE too, so that could theoretically be used there too.
However it also means Qt is going to need an xsettings backend.
I linked a discussion post about it on #qt-labs yesterday, log below:
<girishr_> Adys: sounds acceptable to me. we only don't allow api changes
at this point
<girishr_> Adys: any fixes to make desktop integration better are welcome
<Adys> girishr_: it would be an internal change, but depending on how big
xsettings support would have to be, it'd be a large changeset
<girishr_> Adys: i don't think we had xsettings in qt, so i think the post
is correct that Qt needs to have an implementation of that first
<girishr_> Adys: it affects only xcb plugin, so shouldn't be a problem
<girishr_> Adys: sroedal is the xcb maintainer afaik
I'm not qualified to work on something like this, and the rest of the Razor
team isn't too available currently, so this is mostly a FYI post. I was
really hopeful to have this issue fixed for Qt 5.0, so if someone wants to
or is planning to work on it I'd love to know.
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