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[solved] Translation on the fly crashes

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  • S Offline
    S Offline
    skwateur
    wrote on last edited by
    #3

    Debugger tells me segmentation fault.
    The error is related to the translation

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    • S Offline
      S Offline
      skwateur
      wrote on last edited by
      #4

      I can change the language through a setting window when I'm on the MainWindow but if I try while I'm on ui_identity wdget or some other widget it crashes...

      Really have no idea why.

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      • S Offline
        S Offline
        skwateur
        wrote on last edited by
        #5

        @qApp->installTranslator(translator);@ this line causes the segmentation fault apparently..

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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #6

          Are you sure translator is valid ?

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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          • S Offline
            S Offline
            skwateur
            wrote on last edited by
            #7

            @MainWindow::MainWindow(QWidget *parent) :
            QMainWindow(parent),
            ui(new Ui::MainWindow)
            {
            translator = new QTranslator(0);@

            I can translate the whole program while being on MainWindow. As soon as I go into a widget, I can no longer translate the program. It crashes :s

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            • SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #8

              That's in the MainWindow, how do you do it in your widget ?

              Interested in AI ? www.idiap.ch
              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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              • S Offline
                S Offline
                skwateur
                wrote on last edited by
                #9

                I emit a signal from the widget which is then caught by the main window :
                WIDGET :
                @void ui_sys_settings::languageToEn()
                {
                emit toEnglish();
                }

                void ui_sys_settings::languageToFr()
                {
                emit toFrench();
                }@

                MAINWINDOW :
                @connect(sysSettings,SIGNAL(toEnglish()),this,SLOT(changeToEnglish()));
                connect(sysSettings,SIGNAL(toFrench()),this,SLOT(changeToFrench()));

                void MainWindow::changeToFrench()
                {
                if(!translator->isEmpty())
                qApp->removeTranslator(translator);
                }

                void MainWindow::changeToEnglish()
                {
                if(!translator->isEmpty())
                qApp->removeTranslator(translator);

                translator->load("dcl_en",QApplication::applicationDirPath());
                qApp->installTranslator(translator);
                

                }@

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                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by
                  #10

                  Are you sure you need to re-install the translator ?

                  Interested in AI ? www.idiap.ch
                  Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                  • S Offline
                    S Offline
                    skwateur
                    wrote on last edited by
                    #11

                    I only install it when I load the english language file. It is never installed otherwise

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                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #12

                      Strange...
                      Could you post/share a minimal compilable example that shows the problem ?

                      Interested in AI ? www.idiap.ch
                      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                      • S Offline
                        S Offline
                        skwateur
                        wrote on last edited by
                        #13

                        hmmm. post an example from my own program ?

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                        • SGaistS Offline
                          SGaistS Offline
                          SGaist
                          Lifetime Qt Champion
                          wrote on last edited by
                          #14

                          Rather the minimal code that reproduce the crash

                          Interested in AI ? www.idiap.ch
                          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                          • S Offline
                            S Offline
                            skwateur
                            wrote on last edited by
                            #15

                            Oh. The code that produce the crash is the code I have posted above.

                            If I take the instruction " qApp->installTranslator(translator);" off, then it doesn't crash. But I have nothing translated lol

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                            • SGaistS Offline
                              SGaistS Offline
                              SGaist
                              Lifetime Qt Champion
                              wrote on last edited by
                              #16

                              Indeed, but with only pieces of code, I can't try to reproduce the crash.

                              Interested in AI ? www.idiap.ch
                              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                              • S Offline
                                S Offline
                                skwateur
                                wrote on last edited by
                                #17

                                oh. Do you want the full code of the class ?

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                                • S Offline
                                  S Offline
                                  skwateur
                                  wrote on last edited by
                                  #18

                                  Or I can send you the source files by email if you want. Maybe it could be easier for you to see what's wrong

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                                  • SGaistS Offline
                                    SGaistS Offline
                                    SGaist
                                    Lifetime Qt Champion
                                    wrote on last edited by
                                    #19

                                    You can also use a service like "pastbin":http://pastebin.com/

                                    Interested in AI ? www.idiap.ch
                                    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                                    • S Offline
                                      S Offline
                                      skwateur
                                      wrote on last edited by
                                      #20

                                      Should I paste all my code with pastbin SGalst ?

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                                      • SGaistS Offline
                                        SGaistS Offline
                                        SGaist
                                        Lifetime Qt Champion
                                        wrote on last edited by
                                        #21

                                        Only what is needed to build and trigger the crash

                                        Interested in AI ? www.idiap.ch
                                        Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                                        • S Offline
                                          S Offline
                                          skwateur
                                          wrote on last edited by
                                          #22

                                          It is a graphic application. You would need the images files to be able to hit the button.

                                          Any way I can give it to you ?

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