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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:

    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

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          • 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"

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            • 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!

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              • 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
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                • 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
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                  • 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
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                    • 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);
                      }
                      
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                      • 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.

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                        • 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
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