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The sum() action of the spreadsheet app faces problems

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

    Hi,

    What about using the debugger to get a stack trace ?

    Also, did you check the value of I ?

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

    1 Reply Last reply
    0
    • tomyT Offline
      tomyT Offline
      tomy
      wrote on last edited by
      #9

      I initialized all variables to zero. It works fine now. Thanks.

      1 Reply Last reply
      0
      • tomyT Offline
        tomyT Offline
        tomy
        wrote on last edited by
        #10

        One question on graphic visage of the app.
        Please take a look:

        0_1503938077733_1.png

        To me, it looks like a Win 2000 app and old fashioned! People expect more graphical and splendid apps nowadays.
        I think we can make such new-fashioned apps using Qt, can't we?!

        I toyed with that and changed two lines of code from Qt_4_3 to Qt_5_9. But no influence.

        in.setVersion(QDataStream::Qt_4_3);
        out.setVersion(QDataStream::Qt_4_3);
        

        What classes or functions to use to make the app appear new and competitive from the graphics point of view, please?

        mrjjM 1 Reply Last reply
        0
        • tomyT tomy

          One question on graphic visage of the app.
          Please take a look:

          0_1503938077733_1.png

          To me, it looks like a Win 2000 app and old fashioned! People expect more graphical and splendid apps nowadays.
          I think we can make such new-fashioned apps using Qt, can't we?!

          I toyed with that and changed two lines of code from Qt_4_3 to Qt_5_9. But no influence.

          in.setVersion(QDataStream::Qt_4_3);
          out.setVersion(QDataStream::Qt_4_3);
          

          What classes or functions to use to make the app appear new and competitive from the graphics point of view, please?

          mrjjM Offline
          mrjjM Offline
          mrjj
          Lifetime Qt Champion
          wrote on last edited by
          #11

          @tomy
          It looks like the OS you are running on.
          In this case windows 7.
          It will look as win 10 when running on win 10 and so on.

          If you want to make other type of look, you can use stylesheets or make a completly new
          QStyle class for it. In any way, its a lot of work.

          tomyT 1 Reply Last reply
          1
          • mrjjM mrjj

            @tomy
            It looks like the OS you are running on.
            In this case windows 7.
            It will look as win 10 when running on win 10 and so on.

            If you want to make other type of look, you can use stylesheets or make a completly new
            QStyle class for it. In any way, its a lot of work.

            tomyT Offline
            tomyT Offline
            tomy
            wrote on last edited by
            #12

            @mrjj

            If you want to make other type of look, you can use stylesheets or make a completly new
            QStyle class for it. In any way, its a lot of work.

            Do you think it's because of the old-fashioned book I use (C++-GUI-Programming-with-Qt-4-2ndEdition) or the look is the basic and I will use the new ones when I get further in the book?

            mrjjM 1 Reply Last reply
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            • tomyT tomy

              @mrjj

              If you want to make other type of look, you can use stylesheets or make a completly new
              QStyle class for it. In any way, its a lot of work.

              Do you think it's because of the old-fashioned book I use (C++-GUI-Programming-with-Qt-4-2ndEdition) or the look is the basic and I will use the new ones when I get further in the book?

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

              @tomy
              Nope, its not related to the age of the book and it will look the same also later on.
              Its how widget application looks. unless you make your own style.
              It looks like all the other win 7 apps which is by design.

              tomyT 1 Reply Last reply
              2
              • mrjjM mrjj

                @tomy
                Nope, its not related to the age of the book and it will look the same also later on.
                Its how widget application looks. unless you make your own style.
                It looks like all the other win 7 apps which is by design.

                tomyT Offline
                tomyT Offline
                tomy
                wrote on last edited by
                #14

                @mrjj

                Its how widget application looks. unless you make your own style.

                What do you mean by that, please? do you mean I use some other classes for my app?
                What minor changes I can do to my app to look a little nicer?

                It looks like all the other win 7 apps which is by design.

                Hmm, but my prior app (Calculator) looks more graphical and resembles nowadays Wind 7/10 app!

                jsulmJ 1 Reply Last reply
                0
                • tomyT tomy

                  @mrjj

                  Its how widget application looks. unless you make your own style.

                  What do you mean by that, please? do you mean I use some other classes for my app?
                  What minor changes I can do to my app to look a little nicer?

                  It looks like all the other win 7 apps which is by design.

                  Hmm, but my prior app (Calculator) looks more graphical and resembles nowadays Wind 7/10 app!

                  jsulmJ Offline
                  jsulmJ Offline
                  jsulm
                  Lifetime Qt Champion
                  wrote on last edited by
                  #15

                  @tomy A Qt app usually looks like any other app on the system where it is executed. On Windows 7 it looks like Windows 7 applications, on Windows 10 it looks like a Windows 10 application. Not sure why you bother about this while reading the book.
                  If you want your app to look differently then you can use stylesheets: http://doc.qt.io/qt-4.8/stylesheet-examples.html

                  https://forum.qt.io/topic/113070/qt-code-of-conduct

                  mrjjM 1 Reply Last reply
                  2
                  • jsulmJ jsulm

                    @tomy A Qt app usually looks like any other app on the system where it is executed. On Windows 7 it looks like Windows 7 applications, on Windows 10 it looks like a Windows 10 application. Not sure why you bother about this while reading the book.
                    If you want your app to look differently then you can use stylesheets: http://doc.qt.io/qt-4.8/stylesheet-examples.html

                    mrjjM Offline
                    mrjjM Offline
                    mrjj
                    Lifetime Qt Champion
                    wrote on last edited by
                    #16
                    • What minor changes I can do to my app to look a little nicer?
                      what would make it look nicer?
                      You can use other icons or colors but overall it will still look like the platform.
                    tomyT 1 Reply Last reply
                    1
                    • mrjjM mrjj
                      • What minor changes I can do to my app to look a little nicer?
                        what would make it look nicer?
                        You can use other icons or colors but overall it will still look like the platform.
                      tomyT Offline
                      tomyT Offline
                      tomy
                      wrote on last edited by
                      #17

                      @mrjj
                      So the only solution is http://doc.qt.io/qt-4.8/stylesheet-examples.html although I don't know where in the app (the screen, buttons, tables etc), it changes and still needs a lot of work.

                      Okey. Thank you.

                      mrjjM 1 Reply Last reply
                      0
                      • tomyT tomy

                        @mrjj
                        So the only solution is http://doc.qt.io/qt-4.8/stylesheet-examples.html although I don't know where in the app (the screen, buttons, tables etc), it changes and still needs a lot of work.

                        Okey. Thank you.

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

                        @tomy
                        Yes its lots of work to make new look.

                        1 Reply Last reply
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