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qcombobox drop-down list appears separately(QMDIArea and QMDISubwindow)

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qcomboboxqt5.14.2qmdisubwindowqmdiarea
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  • mrjjM mrjj

    @sayan275
    Ok. same as me.
    Does this happen if you create a clean GUI project and inset a Combobox?

    S Offline
    S Offline
    sayan275
    wrote on last edited by sayan275
    #7

    @mrjj no ...normally it's ok.
    Actually, this qcombobox is an element in an qwidget(say, output NavControls.dll)
    This dll, I use in a viewerWidget, which is added in an qmdiArea.
    Other qcombobox in the same NavControls used in other viewer works fine.

    For what reasons this issue likely occurs...like you asked for stylesheet...so that I can look in those areas. I also faced this issue first time.

    mrjjM 1 Reply Last reply
    0
    • S sayan275

      @mrjj no ...normally it's ok.
      Actually, this qcombobox is an element in an qwidget(say, output NavControls.dll)
      This dll, I use in a viewerWidget, which is added in an qmdiArea.
      Other qcombobox in the same NavControls used in other viewer works fine.

      For what reasons this issue likely occurs...like you asked for stylesheet...so that I can look in those areas. I also faced this issue first time.

      mrjjM Offline
      mrjjM Offline
      mrjj
      Lifetime Qt Champion
      wrote on last edited by
      #8

      @sayan275
      So its just one Combobox that does it ?

      The other viewers are also added to qmdiArea ?

      S 1 Reply Last reply
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      • mrjjM mrjj

        @sayan275
        So its just one Combobox that does it ?

        The other viewers are also added to qmdiArea ?

        S Offline
        S Offline
        sayan275
        wrote on last edited by
        #9

        @mrjj 2 combobox in this viewer behaves like this
        qcombobox in other viewer is working perfectly.

        mrjjM Pl45m4P 2 Replies Last reply
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        • S sayan275

          @mrjj 2 combobox in this viewer behaves like this
          qcombobox in other viewer is working perfectly.

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

          @sayan275
          Hi
          So it would be fair to assume it has something to do with this viewer.
          You have to try to reduce it until the combo works again.

          I have no suggestion as to the cause of this as the other combo boxes works and
          they all live in the same DLL and also put in MDIAreas.

          Do you have multiple monitors on ?

          S 1 Reply Last reply
          1
          • S sayan275

            @mrjj 2 combobox in this viewer behaves like this
            qcombobox in other viewer is working perfectly.

            Pl45m4P Offline
            Pl45m4P Offline
            Pl45m4
            wrote on last edited by Pl45m4
            #11

            @sayan275 sayan275 said in qcombobox drop-down list appears separately:

            2 combobox in this viewer behaves like this

            Are these two the "Pulse" comboBox and the "None" comboBox on the right?

            What happens, if you move them somewhere else, e.g. to the middle of same widget where they dont overlap the MdiArea. Same behavior then?!

            I have no fix but I think, I know why / what is going on.
            The issue could be the coordinate systems / widget positions on main window or widget (your QMdiArea).
            Do you move something by using code?

            Does your widget have a parent?


            If debugging is the process of removing software bugs, then programming must be the process of putting them in.

            ~E. W. Dijkstra

            S 1 Reply Last reply
            1
            • mrjjM mrjj

              @sayan275
              Hi
              So it would be fair to assume it has something to do with this viewer.
              You have to try to reduce it until the combo works again.

              I have no suggestion as to the cause of this as the other combo boxes works and
              they all live in the same DLL and also put in MDIAreas.

              Do you have multiple monitors on ?

              S Offline
              S Offline
              sayan275
              wrote on last edited by
              #12

              @mrjj no multiple monitors...my laptop is set to PC screen only

              1 Reply Last reply
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              • Pl45m4P Pl45m4

                @sayan275 sayan275 said in qcombobox drop-down list appears separately:

                2 combobox in this viewer behaves like this

                Are these two the "Pulse" comboBox and the "None" comboBox on the right?

                What happens, if you move them somewhere else, e.g. to the middle of same widget where they dont overlap the MdiArea. Same behavior then?!

                I have no fix but I think, I know why / what is going on.
                The issue could be the coordinate systems / widget positions on main window or widget (your QMdiArea).
                Do you move something by using code?

                Does your widget have a parent?

                S Offline
                S Offline
                sayan275
                wrote on last edited by sayan275
                #13

                @Pl45m4

                No code for moving
                Actually it has a parent ..a form class.
                https://forum.qt.io/topic/94367/qt-resource-images-not-showing-while-executing
                I have used this lib as in the link.
                I am also trying look in mdiArea ,as the viewers are qmdisubwindow

                Pl45m4P 1 Reply Last reply
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                • S sayan275

                  @Pl45m4

                  No code for moving
                  Actually it has a parent ..a form class.
                  https://forum.qt.io/topic/94367/qt-resource-images-not-showing-while-executing
                  I have used this lib as in the link.
                  I am also trying look in mdiArea ,as the viewers are qmdisubwindow

                  Pl45m4P Offline
                  Pl45m4P Offline
                  Pl45m4
                  wrote on last edited by
                  #14

                  @sayan275

                  Same behavior when you place the same comboBoxes somewhere else on your widget? If there is no issue, then it must be a painter or coordinate mapping issue. Could be a bug.


                  If debugging is the process of removing software bugs, then programming must be the process of putting them in.

                  ~E. W. Dijkstra

                  S 1 Reply Last reply
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                  • Pl45m4P Pl45m4

                    @sayan275

                    Same behavior when you place the same comboBoxes somewhere else on your widget? If there is no issue, then it must be a painter or coordinate mapping issue. Could be a bug.

                    S Offline
                    S Offline
                    sayan275
                    wrote on last edited by
                    #15

                    @Pl45m4 I'll try this...changing it's position

                    1 Reply Last reply
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                    • S Offline
                      S Offline
                      sayan275
                      wrote on last edited by sayan275
                      #16
                      This post is deleted!
                      1 Reply Last reply
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