[Interest] QWidget + friends; How to restore properties across sessions?
christoph at maxiom.de
Sat Aug 16 10:37:27 CEST 2014
On Friday 15 August 2014 21:48:08 Mark Gaiser wrote:
> Now i'm searching for alternatives to this approach to prevent
> handling the bookkeeping myself and still have the same result. For
> instance, would it be possible to have some function (in QObject or
> QWidget i guess) where you either:
> - Define which properties should be saved/restored across sessions,
> bookkeeping would be done internaly.
> - or just some "QObject::persistentSettings(bool)" function that -
> when true - saves any properties and restores them upon next
> request in a persistent manner.
Each QMetaObject has a userProperty() which identifies the value that
the user can change in the object. To get a key for the settings file,
you can use special objectName()s. For example, in Smaragd, I prefix
any object that should have a persistent user property with "cm_" (for
config manager). See code at .
In Skulpture, there are two older versions of this file, one of them
uses QSettings instead of KConfigGroup. Those additionally
handle oddities with combo boxes, but they do not use userProperty().
KDE Quality Team
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