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QFileDialog Error

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  • saitejS saitej

    @mrjj

    I tried the same code in the same system. It works on a new project but not on an existing one. I am unable to find a valid reason for this unusual behaviour

    mrjjM Offline
    mrjjM Offline
    mrjj
    Lifetime Qt Champion
    wrote on last edited by
    #10

    @saitej
    ok. its really , really odd.

    Could you try with the
    QFileDialog::DontUseNativeDialog
    flag and see if its the ubuntu dialog that is strange?

    saitejS 2 Replies Last reply
    1
    • mrjjM mrjj

      @saitej
      ok. its really , really odd.

      Could you try with the
      QFileDialog::DontUseNativeDialog
      flag and see if its the ubuntu dialog that is strange?

      saitejS Offline
      saitejS Offline
      saitej
      wrote on last edited by
      #11

      @mrjj
      It didn't work :(

      mrjjM 1 Reply Last reply
      0
      • mrjjM mrjj

        @saitej
        ok. its really , really odd.

        Could you try with the
        QFileDialog::DontUseNativeDialog
        flag and see if its the ubuntu dialog that is strange?

        saitejS Offline
        saitejS Offline
        saitej
        wrote on last edited by
        #12

        @mrjj

        I will try to implement the same in qml. How to open file dialog in qml through a slot/function?

        1 Reply Last reply
        0
        • saitejS saitej

          @mrjj
          It didn't work :(

          mrjjM Offline
          mrjjM Offline
          mrjj
          Lifetime Qt Champion
          wrote on last edited by
          #13

          @saitej

          Same thing happens even with flag?

          Hmm. I really have no idea what can do this.

          Also since it works normally in default app and
          the static call is the same.

          Have you tried some of the other dialogs ? like COlorDIalog?

          saitejS 1 Reply Last reply
          1
          • mrjjM mrjj

            @saitej

            Same thing happens even with flag?

            Hmm. I really have no idea what can do this.

            Also since it works normally in default app and
            the static call is the same.

            Have you tried some of the other dialogs ? like COlorDIalog?

            saitejS Offline
            saitejS Offline
            saitej
            wrote on last edited by
            #14

            @mrjj
            Nope. Any links would help

            mrjjM 1 Reply Last reply
            0
            • saitejS saitej

              @mrjj
              Nope. Any links would help

              mrjjM Offline
              mrjjM Offline
              mrjj
              Lifetime Qt Champion
              wrote on last edited by
              #15

              @saitej

              Its like the getOpenFileName, just to get a color and not a filename.

              http://doc.qt.io/qt-5/qcolordialog.html

              I just wonder if that is funky too.

              saitejS 2 Replies Last reply
              0
              • mrjjM mrjj

                @saitej

                Its like the getOpenFileName, just to get a color and not a filename.

                http://doc.qt.io/qt-5/qcolordialog.html

                I just wonder if that is funky too.

                saitejS Offline
                saitejS Offline
                saitej
                wrote on last edited by
                #16

                @mrjj

                @saitej said:

                @mrjj

                I will try to implement the same in qml. How to open file dialog in qml through a slot/function?

                I want links for this

                1 Reply Last reply
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                • mrjjM mrjj

                  @saitej

                  Its like the getOpenFileName, just to get a color and not a filename.

                  http://doc.qt.io/qt-5/qcolordialog.html

                  I just wonder if that is funky too.

                  saitejS Offline
                  saitejS Offline
                  saitej
                  wrote on last edited by
                  #17

                  @mrjj
                  QColorDialog works fine!!

                  mrjjM 1 Reply Last reply
                  0
                  • saitejS saitej

                    @mrjj
                    QColorDialog works fine!!

                    mrjjM Offline
                    mrjjM Offline
                    mrjj
                    Lifetime Qt Champion
                    wrote on last edited by
                    #18

                    @saitej
                    Ok very strange..

                    Im not into QML but this seems to be sample
                    http://doc.qt.io/qt-5/qml-qtquick-dialogs-filedialog.html#details

                    saitejS 1 Reply Last reply
                    1
                    • mrjjM mrjj

                      @saitej
                      Ok very strange..

                      Im not into QML but this seems to be sample
                      http://doc.qt.io/qt-5/qml-qtquick-dialogs-filedialog.html#details

                      saitejS Offline
                      saitejS Offline
                      saitej
                      wrote on last edited by
                      #19

                      @mrjj

                      Thanks!!

                      I tried through QML also but am getting the same result.

                      miclandM 1 Reply Last reply
                      0
                      • saitejS saitej

                        @mrjj

                        Thanks!!

                        I tried through QML also but am getting the same result.

                        miclandM Offline
                        miclandM Offline
                        micland
                        wrote on last edited by
                        #20

                        @saitej
                        That's really strange. Can your share a minimal runnable code example so that other users can try to reproduce the behaviour on their platforms?

                        1 Reply Last reply
                        0
                        • saitejS Offline
                          saitejS Offline
                          saitej
                          wrote on last edited by
                          #21

                          I think this guy might have faced a similar problem. The code that works for him doesnot work for me :( .

                          mrjjM 1 Reply Last reply
                          0
                          • saitejS saitej

                            I think this guy might have faced a similar problem. The code that works for him doesnot work for me :( .

                            mrjjM Offline
                            mrjjM Offline
                            mrjj
                            Lifetime Qt Champion
                            wrote on last edited by
                            #22

                            @saitej
                            But you call the function on a menu click?
                            not in mainwin constructor ?

                            since it just in that project, im out of ideas. your Qt should be fine.

                            saitejS 1 Reply Last reply
                            0
                            • mrjjM mrjj

                              @saitej
                              But you call the function on a menu click?
                              not in mainwin constructor ?

                              since it just in that project, im out of ideas. your Qt should be fine.

                              saitejS Offline
                              saitejS Offline
                              saitej
                              wrote on last edited by
                              #23

                              @mrjj
                              Ya!!

                              1 Reply Last reply
                              0
                              • saitejS saitej

                                @micland

                                No. Its the mainwindow already holding several widgets. Yes, the dialog shows up in full screen and also I am unable to resize it from the bottom

                                kshegunovK Offline
                                kshegunovK Offline
                                kshegunov
                                Moderators
                                wrote on last edited by
                                #24

                                @saitej
                                Hi,'

                                Yes, the dialog shows up in full screen and also I am unable to resize it from the bottom

                                It sounds like the event loop is blocked. I don't see how that might be happening from your snippet, but perhaps you could post the rest of the code - the whole method and how it's called?

                                Kind regards.

                                Read and abide by the Qt Code of Conduct

                                saitejS 1 Reply Last reply
                                0
                                • jerome_isAviableJ Offline
                                  jerome_isAviableJ Offline
                                  jerome_isAviable
                                  wrote on last edited by
                                  #25

                                  did you try to use the debug mode for track errors and see variables instances ?
                                  Is your two differents projects has same files contents (or the second project is just a test case maybe ?). If this two projects are new, then use a tool for compare files contents to show differences appears.
                                  then... you could also try to use valgrind tool from qtcreator.

                                  1 Reply Last reply
                                  0
                                  • kshegunovK kshegunov

                                    @saitej
                                    Hi,'

                                    Yes, the dialog shows up in full screen and also I am unable to resize it from the bottom

                                    It sounds like the event loop is blocked. I don't see how that might be happening from your snippet, but perhaps you could post the rest of the code - the whole method and how it's called?

                                    Kind regards.

                                    saitejS Offline
                                    saitejS Offline
                                    saitej
                                    wrote on last edited by saitej
                                    #26

                                    @mrjj @micland @kshegunov

                                    Mainwindow.cpp

                                    QAction *loadfile = new QAction("Load File",this);
                                    ui->menuWidgets->addAction(loadfile);
                                    
                                    connect(loadfile, SIGNAL(triggered(bool)),this,SLOT(onLoadfile()));
                                    
                                    void MainWindow::onLoadfile(){
                                        QString fileName = QFileDialog::getOpenFileName(this,
                                                                                            tr("Open File"),QDir::homePath() , tr("Kml Files (*.kml)"));
                                            qDebug() << "Loading File"<< fileName;
                                            QFile file( fileName );
                                            if (!file.open(QIODevice::ReadOnly | QIODevice::Text))
                                                return;
                                    }
                                    
                                    1 Reply Last reply
                                    0
                                    • saitejS Offline
                                      saitejS Offline
                                      saitej
                                      wrote on last edited by
                                      #27

                                      @mrjj @micland @kshegunov

                                      Hi guys

                                      I have boiled down the error to a line which when commented the filedialog works but I don't see any reason how that line is effecting the filedialog. I will need that line in my project so if someone can tell me how it is affecting the filedialog, It will be very helpful.

                                      Thanks

                                       ui->sideLayout->addWidget(wid1,Qt::AlignBottom);
                                      

                                      This line adds a widget to the sidelayout which is a vertical layout added in the mainwindow.ui file through the designer.

                                      Note: There are other layouts along with the side layout but they are not influencing

                                      1 Reply Last reply
                                      0
                                      • mrjjM Offline
                                        mrjjM Offline
                                        mrjj
                                        Lifetime Qt Champion
                                        wrote on last edited by
                                        #28

                                        hi
                                        That is like epic strange.
                                        What type is wid1 ?

                                        saitejS 1 Reply Last reply
                                        0
                                        • mrjjM mrjj

                                          hi
                                          That is like epic strange.
                                          What type is wid1 ?

                                          saitejS Offline
                                          saitejS Offline
                                          saitej
                                          wrote on last edited by
                                          #29

                                          @mrjj

                                          :)
                                          It's a custom class widget to display variables on real time

                                          mrjjM 1 Reply Last reply
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