Caveat about QFileDialog

[Volker Krause]

On Thursday 17 November 2011 16:07:19 Kevin Ottens wrote:
> On Thursday 17 November 2011 15:42:48 Volker Krause wrote:
> > On Wednesday 16 November 2011 18:39:57 Kevin Kofler wrote:
> > > But the problem is: At least in Qt 4.8 (I haven't checked Qt 5 yet
> > > because browsing its submodules in the Gitorious interface doesn't work
> > > properly), only the STATIC API of QFileDialog supports platform
> > > dialogs. If you construct a QFileDialog OBJECT as the above commit
> > > does, you always get the ugly Qt-only dialog! So it's a very bad idea
> > > to do that.
> > 
> > Did you actually test this? Because the following simple test (based on
> > the
> 
> > referred code) works just fine here and shows the native KDE dialog:
> In my experience it's apparently an environment dependent thing and
> depending on the distro YMMV. For instance here, if I run from the command
> line I get the Qt one, if I run from krunner I get the file dialog. Sounds
> like Qt not catching in which environment you are sometimes.

unsetting KDE_FULL_SESSION makes it fall back to Qt for me, ie. not loading 
the KDE platform plugin. I'd imagine that search paths for that plugin also 
matter. Grepping for getenv suggests it also looks at a few other environment 
variables.

> I get a similar issue with the QStyle it picks by default. It's somewhat
> recent, and I'm not sure where to look to get that fixed.

yep, the default style is also provided by the platform plugin AFAIK.

regards
Volker
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