Applet KConfigGroup vs QSettings?

[Aaron J. Seigo]

On Tuesday 30 December 2008, David Baron wrote:
> I want to save/read configuration settings for the user (rather than global
> settings).
>
> The applet class provides two KConfigGroup functions:
> config() and config( group)

it also provides globalConfig, which allows you to store settings to be shared 
between instances of the same widget.

> Where do these store their data? Global? User?

per-user, in their kde config directory.

> The group name is best the applet name()? user's name?

you don't need to worry about that, it's handled for you. every 
applet/containment is guaranteed to have a unique area in the config file (it 
uses the containment/applet id to formulate that).

the method that takes a group name is just a convenience method so that you 
don't need to do:

KConfigGroup cg = config();
cg = KConfigGroup(&cg, "SomeGroup");
cg.writeEntry ("foo");

but rather just:

config("SomeGroup").writeEntry("foo");

QSettings are not a good idea in this case as you won't get the administration 
frills of KConfig and the user will not be able to ship their configuration 
with their layout.

the idea behind the config system in Corona/Containment/Applet is that layouts 
and their config all stay together in one nice, happy file. =)

> BTW, my phoneapplet is on kde-apps.org is anyone wants to play with it.

cool =)

-- 
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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