mandag den 29. juli 2013 skrev PCMan :
> Hello,
> To see how dconf works and make our evalation easier, I created a
> simple class providing the same interface as QSettings, but uses dconf
> internally.
>
> It's a reusable C++ class - LxQt::Settings, a drop in replacement for
> QSettings based on dconf.
>
> https://github.com/PCMan/lxqt-settings
>
> It's a proof of concept. I only implement a subset of QSettings methods.
> Besides, I haven't implement change notifications, either. (QSettings
> IIRC does not support this)
> Data stored are all strings, just like what QSettings stores in ini files.
> However, dconf actually supports more data formats than string.
> So, there are still rooms to improve this rough implementation.
>
> I did not use glib GSettings since we do not need the features it
> provides. So I call low level dconf client API instead.
>
> main.cpp domonstrated how to use the class.
> It's just like QSettings.
>
> Comments are wanted.
>
Looks good to me.
I was pondering a different approach: Looking at the source code for
QSettings one can see that QSettings keeps an instance of the abstract
class QPrivateSettings that handles communication with the backend. By
choosing a concrete subclass such as QConfFileSettings or QWinSettings
QSettings can chose the backend (ini-files or windows-registry).
So I thought that if we could make a subclass of QPrivateSettings for dconf
and inject it into a QSettings instance, we'd be good to go.
However this has the problem of relying on QPrivateSettings, which is
marked as not intended for external use. So your approach is best I think.
lxqt-settings will probably need to emit a signal when settings change.
RazorSettings, which work on top of QSettings, sets up filewatchers to be
able to emit signals on change, and this won't work anymore.
br. Chr.
> Thanks!
>
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