Qt KDE integration in kdereview.

[Alexander Neundorf]

On Wednesday 04 November 2009, David Faure wrote:
> On Wednesday 04 November 2009, George Kiagiadakis wrote:
> > On Wed, Nov 4, 2009 at 3:19 AM, David Faure <faure at kde.org> wrote:
> > > On Wednesday 04 November 2009, Michael Pyne wrote:
> > >> On Tuesday 03 November 2009 17:10:19 Kevin Krammer wrote:
> > >> > Maybe startkde could set KDEHOME to localprefix if it is not set
> > >> > yet?
> > >>
> > >> That wouldn't be a bad idea either, it's easier just to always have
> > >> KDEHOME set than special-casing it.
> > >
> > > Yep, excellent idea.
> >
> > No, bad idea. If you are using both kde3 and kde4 apps and you want
> > them to use different KDEHOMEs, setting KDEHOME in startkde is just
> > going to force them both to use the same KDEHOME, which is not what we
> > want.
>
> True.
> And I just realized that it wouldn't help making sure KDEHOME is always
> set, since one can also run kde apps outside of a kde workspace (-> no
> startkde run).
>
> > That's why the KDE4_DEFAULT_HOME cmake variable exists.
>
> Yeah but that's not introspectable.
> Hmm, actually, it is:  `kde4-config --localprefix`, but calling a process
> probably too slow for doing from Qt?

Hmm, if it's done once on application startup it might be acceptable.

It's also saved in share/apps/cmake/modules/KDELibsDependencies.cmake, in the 
KDE_DEFAULT_HOME variable. 
You can basically rely on the format of that line:
set(KDE_DEFAULT_HOME ".kde")
So without really parsing it just matching a regexp should do.

Alex