Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. General and Desktop
  4. qcombobox drop-down list appears separately(QMDIArea and QMDISubwindow)
Forum Updated to NodeBB v4.3 + New Features

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

Scheduled Pinned Locked Moved Unsolved General and Desktop
qcomboboxqt5.14.2qmdisubwindowqmdiarea
16 Posts 3 Posters 3.0k Views 3 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • S sayan275

    No stylesheet applied on the qcombobox.
    Windows 10 and Qt 5.14.2

    mrjjM Offline
    mrjjM Offline
    mrjj
    Lifetime Qt Champion
    wrote on last edited by
    #6

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

    S 1 Reply Last reply
    1
    • 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
        0
        • 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
          0
          • 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
                0
                • 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
                  0
                  • 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
                    3
                    • 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
                      0
                      • S Offline
                        S Offline
                        sayan275
                        wrote on last edited by sayan275
                        #16
                        This post is deleted!
                        1 Reply Last reply
                        0

                        • Login

                        • Login or register to search.
                        • First post
                          Last post
                        0
                        • Categories
                        • Recent
                        • Tags
                        • Popular
                        • Users
                        • Groups
                        • Search
                        • Get Qt Extensions
                        • Unsolved