Francesco Di Muccio, 05.09.2011: > Hello all, > > In my application I'm using KConfigXT, everything works fine when I > change the settings values from the dialog inherited by KConfigDialog, > but if I write the configuration values using the class generated from > the kcfg file the changes are not reflected into the settings dialog. > Here is the flow: > > 1) Open the settings dialog (it will be cached by KConfigDialog), > change some values and close it > 2) Call some code that writes the same values using the class > generated by kcfg generator > 3) Reopen the dialog cached instance. The values shown by the widgets > are the old ones. > > I read the docs and the tutorial at > http://techbase.kde.org/Development/Tutorials/Using_KConfig_XT, but > didn't find anything that pointed me to a wrong use of the framework, > so maybe it is a bug. > > To be sure I read the sources of KConfigDialog and maybe spotted the > problem: in KConfigDialog::showEvent() there is a check to a boolean flag > KConfigDialog::KConfigDialogPrivate::shown that get set to true at the > end of the method but never set to false. > In the showEvent() method there is the code that updates the widgets > according to KConfigSkeleton state. Since "shown" is never set to > false that code will not be executed the next time the dialog->show() > is called. > I didn't find a way to force KConfigDialog to update the widgets; the > responsible to update them is KConfigDialogManager and it's enclosed > in KConfigDialog::KConfigDialogPrivate. > > I did an ugly hack to make it work: discarding the cached instance in > place of a new one each time the settings dialog is opened. > > I didn't fill a bug report because i was unsure if it was an expected > behavior or not. Am I missing something?
Do you ever call YourConfig::writeConfig() ? Otherwise take a look at e.g. https://projects.kde.org/projects/extragear/sdk/massif- visualizer/repository/revisions/master/changes/app/configdialog.cpp and https://projects.kde.org/projects/extragear/sdk/massif- visualizer/repository/revisions/master/changes/app/mainwindow.cpp it works like a charm there. To be honest though I'm not sure whether I leak the settings dialogs in app::preferences, I should investigate that :) bye -- Milian Wolff m...@milianw.de http://milianw.de
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