[Amarok] Fix a bunch of qwarnings caused by QPainter on nul

[Mark Kretschmann]

On Fri, Oct 23, 2009 at 6:31 AM, Mark Kretschmann <kretschmann at kde.org> wrote:
> On Thu, Oct 22, 2009 at 11:14 PM, Kevin Funk <krf at gmx.de> wrote:
>> Added some FIXMEs to highlight issues. Please try to fix if you know the code.
>
> That's a good initiative, Kevin.
>
> There are numerous connect() errors and other Qt warnings, and I've
> meant to look at them for a long time. I think we should take these
> runtime warnings more seriously in general. We tend to ignore them (I
> guess that's quite common) because they don't cause crashes
> immediately, but ultimately bad things can happen.

On that note, there is one trick for making debugging of these easier:

If you set the QT_FATAL_WARNINGS environment variable to 1, Qt's
runtime warnings and errors will cause a crash (and thus provide a
backtrace), instead of just printing a text.

-- 
Mark Kretschmann
Amarok Developer
www.kde.org - amarok.kde.org