[Interest] How to properly translate an application?

[Jérôme Godbout]

I just checkout the retranslate doc and I found this:


Note: Due to a limitation in the implementation, this function refreshes all the engine's bindings, not only those that use strings marked for translation. This may be optimized in a future release.


Ouch! I will stick with my property changes for the time being.


________________________________
From: Interest <interest-bounces+godboutj=amotus.ca at qt-project.org> on behalf of Jérôme Godbout <godboutj at amotus.ca>
Sent: June 11, 2018 9:07 AM
To: EXT Artem Sidyakin; markg85 at gmail.com
Cc: Qt Interest
Subject: Re: [Interest] How to properly translate an application?


Note: For 5.10, you have to call QQmlEngine::retranslate()<http://doc.qt.io/qt-5/qqmlengine.html#retranslate> to make this work. Not sure this is needed for 5.11 as I haven't move on to 5.11 because of borken Qml MouseGesture, will have to try it out. But good to known this is now fixed.


________________________________
From: EXT Artem Sidyakin <artem.sidyakin at qt.io>
Sent: June 11, 2018 4:48 AM
To: Jérôme Godbout; markg85 at gmail.com
Cc: Qt Interest
Subject: Re: [Interest] How to properly translate an application?

> For the Qml part I have all my qsTr(“My str to tr") + I18n.r where I18n is a singleton and  "r" is a property upon which I call the changed when I load a new language

There is no need for that since Qt 5.10 (QTBUG-15602). Although, OP asked about Qt 5.9, and there you still have to use this trick.

Speaking about translating QML applications, I would also recommend this article: https://retifrav.github.io/blog/2017/01/04/translating-qml-app/

---
Artem Sidyakin

> On 7 Jun 2018, at 18:36, Jérôme Godbout <godboutj at amotus.ca> wrote:
>
> I for one, use the .qm into my qrc file and then load it with QTranslator() from my resource. The  I add/remove it to the QCoreApplication::instance()->installTranslator() or removeTranslator().
>
> This might not be the best way to do it, but I can change my language at runtime with it. I list the availbale language from my resource folder, then user can select any, I load it and remove the previous one. For the Qml part I have all my qsTr("My str to tr") + I18n.r where I18n is a singleton and  "r" is a property upon which I call the changed when I load a new language. I work well. I did not made C++ translation with it, since my views are pure Qml and my C++ keep models and controller only.
>
> Not sure it might help, but might give some idea.
>
> From: Interest <interest-bounces+godboutj=amotus.ca at qt-project.org> on behalf of Mark Gaiser <markg85 at gmail.com>
> Sent: June 7, 2018 11:26 AM
> To: rainer_wiesenfarth at trimble.com
> Cc: Qt Interest
> Subject: Re: [Interest] How to properly translate an application?
>
> On Thu, Jun 7, 2018 at 3:09 PM Rainer Wiesenfarth <rainer_wiesenfarth at trimble.com> wrote:
>
> On Thu, Jun 7, 2018 at 2:22 PM, Mark Gaiser <markg85 at gmail.com> wrote:
> I have a windows desktop application (Qt 5.9 LTS) here that has Dutch and English translations files (in .ts format) created with Qt Linguist. Any strings in that file show up in the Qt UI just fine in the chosen language.
>
> But if i set the language to Dutch (operating system language is English) then Qt's default buttons are still in English. Sure, they can be translated on a case-by-case basis but i don't think that
> should be needed.
>
> I don't think there is a problem with the .ts files as anything in there just works in the UI.
> But perhaps i missed a step?
>
> For a couple of languages, there are .qm files for Qt (search e.g. for qt_de.qm). These contain the translations of Qt itself. Unfortunately, Dutch seems to be not included here...
>
> The page http://wiki.qt.io/Qt_Localization may be useful for further investigations.
>
> That seems like a good point to investigate further.
> Thank you for the link!
>
>
> Cheers, Rainer
>
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