https://bugs.kde.org/show_bug.cgi?id=376114
Bug ID: 376114
Summary: KDE Plasma force Qt5 applications layout direction
Product: frameworks-ki18n
Version: 5.29.0
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: general
Assignee: caslav.i...@gmx.net
Reporter: ttv...@gmail.com
CC: kdelibs-b...@kde.org
Target Milestone: ---
When I move to KDE Plasma I notice that english Qt5 applications Always on
direction Right to left
My KDE is in Hebrew - on Right to left language
this make this applications to be Uncomfortable or even impossible to use
(because of ui element is one on another)
for example: zeal, Qt Designer (all qt official develop applications)
I try on another desktop, but there everything is fine, those apps are LTR.
After long investigation I understand that KDE force the Qt5 app to be on
Layout direction of the system language.
You can see the function load() in /src/main.cpp in ki18n repository:
// The way Qt translation system handles plural forms makes it necessary to
// have a translation file which contains only plural forms for `en`.
That's
// why we load the `en` translation unconditionally, then load the
// translation for the current locale to overload it.
LoadTranslation(QStringLiteral("en"));
QLocale locale = QLocale::system();
if (locale.name() != QStringLiteral("en")) {
if (!loadTranslation(locale.name())) {
loadTranslation(locale.bcp47Name());
}
}
the function loadTranslation loat the translation from
QLibraryInfo::TranslationsPath - the default Qt translation
You can see that the translation are import based on the system language.
On program who use KDE Framework this is not influencing on the layout
direction, probebly because that KDE Framework check if the app have translate
and change the Layout direction in accordance.
But on plain Qt5 applications the function set the default translation file of
Qt5 and this make them always be on system layout direction, because Qt5 set
the direction of app by those translations (you can see here:
https://github.com/qt/qtbase/blob/dev/src/gui/kernel/qguiapplication.cpp#L210 )
I try to fix it, but I don't know how
I Build the library with this function disabled, and the plain Qt apps work
well but the KDE apps don't.
You just need to do:
If the app is use KDE Framework -> set the translations
else -> don't do anything
Thanks!
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