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How to load translation for static library widget

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qtranslatorstatic library
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  • M mbnoimi

    @kshegunov said:

    Hello,
    Something is amiss here, let's take it from the top. You said that you get the "Failed to load a translation for QT in your local language" message, but this message is to be shown when this fails: myTranslator->load(*local, QLatin1String("tester"), QLatin1String("_"), QLatin1String(":/i18n"))

    I didn't say that!
    I said I get Failed to load translation from static library which points to myTranslator->load(":/languages/arabic") failure!

    where does a static library resource come in play here?

    As I mentioned above this line suppose to load translation from static library's resource

    Could you tell what is the current language you're using and its iso code

    English; en_US

    kshegunovK Offline
    kshegunovK Offline
    kshegunov
    Moderators
    wrote on last edited by
    #17

    @mbnoimi

    I didn't say that!
    I said I get Failed to load translation from static library

    Indeed you did, it's my mistake, sorry.

    which points to myTranslator->load(":/languages/arabic") failure!

    Could you verify that this file is available? For example what does QFile::exists(":/languages/arabic") return, true or false? If the file exists then the problem is with the actual loading, if the file is not found, then I guess there's a problem with the resource initialization.

    Kind regards.

    Read and abide by the Qt Code of Conduct

    M 1 Reply Last reply
    0
    • kshegunovK kshegunov

      @mbnoimi

      I didn't say that!
      I said I get Failed to load translation from static library

      Indeed you did, it's my mistake, sorry.

      which points to myTranslator->load(":/languages/arabic") failure!

      Could you verify that this file is available? For example what does QFile::exists(":/languages/arabic") return, true or false? If the file exists then the problem is with the actual loading, if the file is not found, then I guess there's a problem with the resource initialization.

      Kind regards.

      M Offline
      M Offline
      mbnoimi
      wrote on last edited by
      #18

      @kshegunov said:

      Could you verify that this file is available? For example what does QFile::exists(":/languages/arabic") return, true or false?

      I get true

      If the file exists then the problem is with the actual loading, if the file is not found, then I guess there's a problem with the resource initialization.

      After reviewing the project I discovered there are two "resources.qrc" the first one in the static library and the other in tester app. so I supposed this maybe makes Qt confused so I renamed one of them to a different name but unfortunately I still get same result.

      kshegunovK 1 Reply Last reply
      0
      • mrjjM mrjj

        Hi
        Maybe try

        QDirIterator it(":", QDirIterator::Subdirectories);
    while (it.hasNext()) {
        qDebug() << it.next();
    }

        to have a look how the files are named in the running exe to to verify
        that they are indeed under ":/i18n" and paths are as you expect.

        M Offline
        M Offline
        mbnoimi
        wrote on last edited by mbnoimi
        #19

        @mrjj said:

        QDirIterator it(":", QDirIterator::Subdirectories);
    while (it.hasNext()) {
        qDebug() << it.next();
    }

        to have a look how the files are named in the running exe to to verify
        that they are indeed under ":/i18n" and paths are as you expect.

        I got this output:

        Failed to load translation from static library
":/qt-project.org"
":/qt-project.org/qmime"
":/qt-project.org/qmime/freedesktop.org.xml"
":/qt-project.org/styles"
":/qt-project.org/styles/commonstyle"
":/qt-project.org/styles/commonstyle/images"
":/qt-project.org/styles/commonstyle/images/networkdrive-16.png"
":/qt-project.org/styles/commonstyle/images/networkdrive-32.png"
":/qt-project.org/styles/commonstyle/images/dvd-16.png"
":/qt-project.org/styles/commonstyle/images/cdr-16.png"
":/qt-project.org/styles/commonstyle/images/up-16.png"
":/qt-project.org/styles/commonstyle/images/up-32.png"
":/qt-project.org/styles/commonstyle/images/dvd-32.png"
":/qt-project.org/styles/commonstyle/images/cdr-32.png"
":/qt-project.org/styles/commonstyle/images/left-32.png"
":/qt-project.org/styles/commonstyle/images/stop-32.png"
":/qt-project.org/styles/commonstyle/images/file-16.png"
":/qt-project.org/styles/commonstyle/images/down-16.png"
":/qt-project.org/styles/commonstyle/images/stop-24.png"
":/qt-project.org/styles/commonstyle/images/left-16.png"
":/qt-project.org/styles/commonstyle/images/down-32.png"
":/qt-project.org/styles/commonstyle/images/file-32.png"
":/qt-project.org/styles/commonstyle/images/dirlink-32.png"
":/qt-project.org/styles/commonstyle/images/diropen-32.png"
":/qt-project.org/styles/commonstyle/images/diropen-16.png"
":/qt-project.org/styles/commonstyle/images/cleartext-16.png"
":/qt-project.org/styles/commonstyle/images/dirlink-16.png"
":/qt-project.org/styles/commonstyle/images/networkdrive-128.png"
":/qt-project.org/styles/commonstyle/images/media-volume-muted-16.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-cancel-128.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-open-128.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-apply-32.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-apply-16.png"
":/qt-project.org/styles/commonstyle/images/fonttruetype-16.png"
":/qt-project.org/styles/commonstyle/images/newdirectory-128.png"
":/qt-project.org/styles/commonstyle/images/filecontents-128.png"
":/qt-project.org/styles/commonstyle/images/floppy-128.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-delete-16.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-delete-32.png"
":/qt-project.org/styles/commonstyle/images/harddrive-128.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-clear-32.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-close-32.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-clear-16.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-close-16.png"
":/qt-project.org/styles/commonstyle/images/dirclosed-128.png"
":/qt-project.org/styles/commonstyle/images/trash-128.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-apply-128.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-yes-16.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-yes-32.png"
":/qt-project.org/styles/commonstyle/images/fontbitmap-16.png"
":/qt-project.org/styles/commonstyle/images/newdirectory-32.png"
":/qt-project.org/styles/commonstyle/images/dirclosed-32.png"
":/qt-project.org/styles/commonstyle/images/newdirectory-16.png"
":/qt-project.org/styles/commonstyle/images/dirclosed-16.png"
":/qt-project.org/styles/commonstyle/images/up-128.png"
":/qt-project.org/styles/commonstyle/images/media-pause-32.png"
":/qt-project.org/styles/commonstyle/images/media-pause-16.png"
":/qt-project.org/styles/commonstyle/images/cdr-128.png"
":/qt-project.org/styles/commonstyle/images/dvd-128.png"
":/qt-project.org/styles/commonstyle/images/media-volume-16.png"
":/qt-project.org/styles/commonstyle/images/harddrive-32.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-cancel-16.png"
":/qt-project.org/styles/commonstyle/images/harddrive-16.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-closetab-hover-16.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-cancel-32.png"
":/qt-project.org/styles/commonstyle/images/viewdetailed-128.png"
":/qt-project.org/styles/commonstyle/images/fusion_groupbox.png"
":/qt-project.org/styles/commonstyle/images/right-128.png"
":/qt-project.org/styles/commonstyle/images/fileinfo-16.png"
":/qt-project.org/styles/commonstyle/images/filelink-16.png"
":/qt-project.org/styles/commonstyle/images/filelink-32.png"
":/qt-project.org/styles/commonstyle/images/fileinfo-32.png"
":/qt-project.org/styles/commonstyle/images/dirlink-128.png"
":/qt-project.org/styles/commonstyle/images/media-seek-forward-16.png"
":/qt-project.org/styles/commonstyle/images/media-seek-forward-32.png"
":/qt-project.org/styles/commonstyle/images/diropen-128.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-help-128.png"
":/qt-project.org/styles/commonstyle/images/viewdetailed-16.png"
":/qt-project.org/styles/commonstyle/images/viewdetailed-32.png"
":/qt-project.org/styles/commonstyle/images/media-seek-backward-16.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-ok-128.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-no-128.png"
":/qt-project.org/styles/commonstyle/images/media-seek-backward-32.png"
":/qt-project.org/styles/commonstyle/images/refresh-32.png"
":/qt-project.org/styles/commonstyle/images/refresh-24.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-save-128.png"
":/qt-project.org/styles/commonstyle/images/viewlist-128.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-yes-128.png"
":/qt-project.org/styles/commonstyle/images/computer-32.png"
":/qt-project.org/styles/commonstyle/images/computer-16.png"
":/qt-project.org/styles/commonstyle/images/parentdir-32.png"
":/qt-project.org/styles/commonstyle/images/parentdir-16.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-closetab-16.png"
":/qt-project.org/styles/commonstyle/images/media-play-16.png"
":/qt-project.org/styles/commonstyle/images/desktop-16.png"
":/qt-project.org/styles/commonstyle/images/media-stop-16.png"
":/qt-project.org/styles/commonstyle/images/desktop-32.png"
":/qt-project.org/styles/commonstyle/images/media-play-32.png"
":/qt-project.org/styles/commonstyle/images/down-128.png"
":/qt-project.org/styles/commonstyle/images/media-stop-32.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-delete-128.png"
":/qt-project.org/styles/commonstyle/images/media-skip-backward-32.png"
":/qt-project.org/styles/commonstyle/images/media-skip-backward-16.png"
":/qt-project.org/styles/commonstyle/images/fusion_arrow.png"
":/qt-project.org/styles/commonstyle/images/viewlist-16.png"
":/qt-project.org/styles/commonstyle/images/viewlist-32.png"
":/qt-project.org/styles/commonstyle/images/file-128.png"
":/qt-project.org/styles/commonstyle/images/floppy-32.png"
":/qt-project.org/styles/commonstyle/images/left-128.png"
":/qt-project.org/styles/commonstyle/images/floppy-16.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-no-32.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-ok-32.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-no-16.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-ok-16.png"
":/qt-project.org/styles/commonstyle/images/media-skip-forward-32.png"
":/qt-project.org/styles/commonstyle/images/media-skip-forward-16.png"
":/qt-project.org/styles/commonstyle/images/filelink-128.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-open-16.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-open-32.png"
":/qt-project.org/styles/commonstyle/images/fileinfo-128.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-help-32.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-help-16.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-save-16.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-save-32.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-closetab-down-16.png"
":/qt-project.org/styles/commonstyle/images/parentdir-128.png"
":/qt-project.org/styles/commonstyle/images/filecontents-32.png"
":/qt-project.org/styles/commonstyle/images/trash-32.png"
":/qt-project.org/styles/commonstyle/images/filecontents-16.png"
":/qt-project.org/styles/commonstyle/images/trash-16.png"
":/qt-project.org/styles/commonstyle/images/right-16.png"
":/qt-project.org/styles/commonstyle/images/right-32.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-clear-128.png"
":/qt-project.org/styles/commonstyle/images/standardbutton-close-128.png"
":/qt-project.org/styles/macstyle"
":/qt-project.org/styles/macstyle/images"
":/qt-project.org/styles/macstyle/images/toolbar-ext.png"
":/qt-project.org/styles/macstyle/images/dockdock-down-16.png"
":/qt-project.org/styles/macstyle/images/closedock-16.png"
":/qt-project.org/styles/macstyle/images/dockdock-16.png"
":/qt-project.org/styles/macstyle/images/closedock-down-16.png"
":/qt-project.org/styles/macstyle/images/toolbar-ext@2x.png"
":/qt-project.org/qmessagebox"
":/qt-project.org/qmessagebox/images"
":/qt-project.org/qmessagebox/images/qtlogo-64.png"
":/i18n"
":/i18n/tester_ar.qm"
":/i18n/tester_de.qm"
":/i18n/tester_fr.qm"
":/i18n/tester_en.qm"
":/i18n/tester_ru.qm"
":/i18n/tester_it.qm"
":/languages"
":/languages/i18n"
":/languages/i18n/WidgetKeyboard_fr.qm"
":/languages/i18n/WidgetKeyboard_ar.qm"
":/languages/i18n/WidgetKeyboard_de.qm"
":/languages/i18n/WidgetKeyboard_en.qm"
":/languages/i18n/WidgetKeyboard_it.qm"
":/languages/i18n/WidgetKeyboard_ru.qm"
":/images"
":/images/cut"
":/images/copy"
":/images/logo"
":/images/paste"
":/images/normalEcho"
":/images/passwdEcho"
":/sounds"
":/sounds/click.wav"
QSoundEffect(pulseaudio): Error decoding source
        1 Reply Last reply
        0
        • M mbnoimi

          @kshegunov said:

          Could you verify that this file is available? For example what does QFile::exists(":/languages/arabic") return, true or false?

          I get true

          If the file exists then the problem is with the actual loading, if the file is not found, then I guess there's a problem with the resource initialization.

          After reviewing the project I discovered there are two "resources.qrc" the first one in the static library and the other in tester app. so I supposed this maybe makes Qt confused so I renamed one of them to a different name but unfortunately I still get same result.

          kshegunovK Offline
          kshegunovK Offline
          kshegunov
          Moderators
          wrote on last edited by
          #20

          @mbnoimi
          What about loading like this:

              translator->load("arabic", ":/languages");

          And as a second suggestion: I think you should create another QTranslator object for the second translation file.

          Kind regards.

          Read and abide by the Qt Code of Conduct

          M 1 Reply Last reply
          0
          • kshegunovK kshegunov

            @mbnoimi
            What about loading like this:

                translator->load("arabic", ":/languages");

            And as a second suggestion: I think you should create another QTranslator object for the second translation file.

            Kind regards.

            M Offline
            M Offline
            mbnoimi
            wrote on last edited by mbnoimi
            #21

            @kshegunov said:

            And as a second suggestion: I think you should create another QTranslator object for the second translation file.

            Thanks. This fixed Tester app. problem but it didn't fix the main problem (loading translation from static library) I still get this error message:

            Failed to load translation from static library

            kshegunovK 1 Reply Last reply
            0
            • M mbnoimi

              @kshegunov said:

              And as a second suggestion: I think you should create another QTranslator object for the second translation file.

              Thanks. This fixed Tester app. problem but it didn't fix the main problem (loading translation from static library) I still get this error message:

              Failed to load translation from static library

              kshegunovK Offline
              kshegunovK Offline
              kshegunov
              Moderators
              wrote on last edited by
              #22

              @mbnoimi
              And have you tried the loading like this translator->load("arabic", ":/languages");, since you didn't comment on that?

              Read and abide by the Qt Code of Conduct

              M 2 Replies Last reply
              0
              • kshegunovK kshegunov

                @mbnoimi
                And have you tried the loading like this translator->load("arabic", ":/languages");, since you didn't comment on that?

                M Offline
                M Offline
                mbnoimi
                wrote on last edited by
                #23

                @kshegunov said:

                @mbnoimi
                And have you tried the loading like this translator->load("arabic", ":/languages");, since you didn't comment on that?

                Didn't work :( I get same error message

                1 Reply Last reply
                0
                • mrjjM Offline
                  mrjjM Offline
                  mrjj
                  Lifetime Qt Champion
                  wrote on last edited by
                  #24

                  Can I ask some silly maybe ?
                  The list shows
                  :/i18n/tester_ar.qm

                  There is no "arabic" under languages
                  there is
                  ":/languages/i18n/WidgetKeyboard_ar.qm"

                  1 Reply Last reply
                  0
                  • kshegunovK kshegunov

                    @mbnoimi
                    And have you tried the loading like this translator->load("arabic", ":/languages");, since you didn't comment on that?

                    M Offline
                    M Offline
                    mbnoimi
                    wrote on last edited by mbnoimi
                    #25

                    @kshegunov said:

                    And have you tried the loading like this translator->load("arabic", ":/languages");, since you didn't comment on that?

                    I tried to use translator->load(":/languages/i18n/WidgetKeyboard_ar") instead. The error message disappeared ("Failed to load translation from static library") but the widget comes from the static library still appears in English!

                    1 Reply Last reply
                    0
                    • mrjjM Offline
                      mrjjM Offline
                      mrjj
                      Lifetime Qt Champion
                      wrote on last edited by
                      #26

                      Silly question number 2.
                      The test calls ui->retranslateUi(this);
                      void Tester::changeEvent(QEvent *event)
                      {
                      if (event->type() == QEvent::LanguageChange) {
                      ui->retranslateUi(this);
                      } else
                      QWidget::changeEvent(event);
                      }
                      But tester ui->retranslate() knows about the widgets from the library ?
                      retranslateUi() just call all ->setText for elements inserted on the UI.
                      How can it know about widgets in the Lib?
                      Who calls widget_in_lib->setText?

                      M 1 Reply Last reply
                      0
                      • mrjjM mrjj

                        Silly question number 2.
                        The test calls ui->retranslateUi(this);
                        void Tester::changeEvent(QEvent *event)
                        {
                        if (event->type() == QEvent::LanguageChange) {
                        ui->retranslateUi(this);
                        } else
                        QWidget::changeEvent(event);
                        }
                        But tester ui->retranslate() knows about the widgets from the library ?
                        retranslateUi() just call all ->setText for elements inserted on the UI.
                        How can it know about widgets in the Lib?
                        Who calls widget_in_lib->setText?

                        M Offline
                        M Offline
                        mbnoimi
                        wrote on last edited by
                        #27

                        @mrjj said:

                        But tester ui->retranslate() knows about the widgets from the library ?
                        retranslateUi() just call all ->setText for elements inserted on the UI.
                        How can it know about widgets in the Lib?
                        Who calls widget_in_lib->setText?

                        Fair point. But as you can see from the code the widget in static library built manually not by using Qt Designer so retranslate doesn't exist and I don't know how to create an alternative to it :(

                        mrjjM 1 Reply Last reply
                        0
                        • M mbnoimi

                          @mrjj said:

                          But tester ui->retranslate() knows about the widgets from the library ?
                          retranslateUi() just call all ->setText for elements inserted on the UI.
                          How can it know about widgets in the Lib?
                          Who calls widget_in_lib->setText?

                          Fair point. But as you can see from the code the widget in static library built manually not by using Qt Designer so retranslate doesn't exist and I don't know how to create an alternative to it :(

                          mrjjM Offline
                          mrjjM Offline
                          mrjj
                          Lifetime Qt Champion
                          wrote on last edited by mrjj
                          #28

                          @mbnoimi
                          well for dynamic translation, meaning load translation AFTER keyboard been created would be to call
                          void WidgetKeyBoard::createKeyboard(void) again.
                          As it seems to be the only place with tr(text);
                          retranslateUi() is very simple in all programs. it simply just sets the texts again
                          and the tr function gets the new text from the active translation.
                          Alternatively you need enum all widgets (in keyboard), get the text and re-set it via tr / directly look up trans text.
                          But it can be messy if many types of Widgets as then u need to handle the "setText" for each.

                          M 1 Reply Last reply
                          0
                          • mrjjM mrjj

                            @mbnoimi
                            well for dynamic translation, meaning load translation AFTER keyboard been created would be to call
                            void WidgetKeyBoard::createKeyboard(void) again.
                            As it seems to be the only place with tr(text);
                            retranslateUi() is very simple in all programs. it simply just sets the texts again
                            and the tr function gets the new text from the active translation.
                            Alternatively you need enum all widgets (in keyboard), get the text and re-set it via tr / directly look up trans text.
                            But it can be messy if many types of Widgets as then u need to handle the "setText" for each.

                            M Offline
                            M Offline
                            mbnoimi
                            wrote on last edited by
                            #29

                            @mrjj said:

                            @mbnoimi
                            well for dynamic translation, meaning load translation AFTER keyboard been created would be to call
                            void WidgetKeyBoard::createKeyboard(void) again.

                            I tried to call createKeyboard() once again as following but still gives same result although this function calls tr() so it suppose to do what you talked about!

                            void Tester::changeEvent(QEvent *event)
{
    if (event->type() == QEvent::LanguageChange) {
        ui->retranslateUi(this);
        myKeyboard->createKeyboard();
    } else
        QWidget::changeEvent(event);
}
                            1 Reply Last reply
                            0
                            • mrjjM Offline
                              mrjjM Offline
                              mrjj
                              Lifetime Qt Champion
                              wrote on last edited by mrjj
                              #30

                              Hi
                              Maybe you can
                              delete myKeyboard;
                              myKeyboard = new Keyboard(this);
                              as im not sure if calling createKeyboard() for same instance is 100% ok. (did not try it)

                              Then there is the context thing.
                              for mainwindow, its "mainwindow" (doh), but I do wonder about the translation that comes from static.

                              Since they are linked into "main", I assume its context is the same as main (tester) but if the
                              qm is different, it will not work.

                              So open them (qms) in Linguist and check the context they were extracted as.

                              then try with
                              http://doc.qt.io/qt-5/qcoreapplication.html#translate

                              To test a translation with that context and see if it does resolve.

                              First then I would worry about tr working in createKeyboard()

                              If I may say so.

                              update:
                              Context is "WidgetKeyBoard"
                              So calling createKeyboard() should be in the right context as we are in that class.

                              So testing with qcoreapplication.html#translate
                              to see if all is loaded and happy.

                              1 Reply Last reply
                              0
                              • M Offline
                                M Offline
                                mbnoimi
                                wrote on last edited by
                                #31

                                Thank you guys, I'm no longer work on this project since Digia announcement.

                                mrjjM 1 Reply Last reply
                                0
                                • M mbnoimi

                                  Thank you guys, I'm no longer work on this project since Digia announcement.

                                  mrjjM Offline
                                  mrjjM Offline
                                  mrjj
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #32

                                  @mbnoimi
                                  Ok, why if I can ask?

                                  1 Reply Last reply
                                  0

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