From kde-panel-devel  Wed Apr 22 15:10:47 2009
From: "Aaron J. Seigo" <aseigo () kde ! org>
Date: Wed, 22 Apr 2009 15:10:47 +0000
To: kde-panel-devel
Subject: Re: pardus plasma problems (PPP :P)
Message-Id: <200904220910.48354.aseigo () kde ! org>
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On Wednesday 22 April 2009, Sebastian K=C3=BCgler wrote:
> - In 4.2, there's no way to set the wallpaper from outside Plasma. That's
> of course more involved, since the wallpaper plugin also needs to be
> switched to the image plugin.=20

not necessarily; there's no reason it couldn't be made possible to set any=
=20
wallpaper plugin + mode + source package/file. =20

there's also no guarantee that the image plugin would be there, either. hig=
h=20
chance, but no guarantee. we're back again to wanting X-Plasma-DropMimeType=
s=3D=20
much like we do for applets (which also gets us part way to "drop an image =
on=20
the desktop to set the wallpaper)

> For 4.4, there's a dbus interface planned for
> this, but how can one add this functionality before that?

by working up a d-bus interface so that it exists. it wouldn't be a _ton_ o=
f=20
work and would get you a lot of similar kinds of "would be nice to do from=
=20
outside of plasma while its running" kind of tings, like being able to add =
/=20
remove widgets.

see:

http://techbase.kde.org/index.php?title=3DProjects/Summer_of_Code/2009/Idea=
s#Project:_D-
Bus_Interface

(interesting that people feel this is an important enough issue to patch=20
things over)

> - The Plasma panel, in some cases doesn't switch the theme's artwork to t=
he
> translucent version. I recall there was a fix for that recently, the
> compositingEnabled signal wasn't always emitted, iirc. Probably something
> we (or the Pardus guys) want to backport. I'm not sure which patch that
> was, maybe r916823. Does anyone know this?

http://websvn.kde.org/?view=3Drev&revision=3D916823

that one is about watching for theme changes, not watching for composite=20
changes.

what you want to look into is KSelectionWatcher as used in=20
kdelibs/plasma/theme.cpp (look for compositeWatcher) ... it sometimes works=
=20
and sometimes doesn't, seems to be some problems in the KSelectionWatcher=20
class, but i haven't had a chance to delve in an debug it.

> - When symlinking /usr/ (for example to /oldusr/), the wallpapers in the
> preview drop dropdown show up twice. Any idea what's going on here?

because KStandardDirs doesn't check for symlinks, and /oldusr apparently in=
=20
the paths checked by KStandardDirs ... the relevant code in plasma is:

    QStringList themes =3D dirs.findAllResources("data",=20
"desktoptheme/*/metadata.desktop",
                                               KStandardDirs::NoDuplicates);

from workspace/plasma/shells/desktop/backgrounddialog.cpp
=2D-=20
Aaron J. Seigo
humru othro a kohnu se
GPG Fingerprint: 8B8B 2209 0C6F 7C47 B1EA  EE75 D6B7 2EB1 A7F1 DB43

KDE core developer sponsored by Qt Software


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