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What can I do for my QtWidget-Program's Window correctly positioned on the screen?

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  • foghere2023F foghere2023

    @jsulm

    According to the normal logic, the pop-up message prompt should be suspended on the upper layer of the parent window.

    QMessageBox and some child Dialog cannot on top of its parent window in Wayland,this looks like Qwidget's bug.

    What should i do ?

    JonBJ Online
    JonBJ Online
    JonB
    wrote on last edited by
    #11

    @foghere2023
    See if it works under Xorg?
    If so wait for it to work under Wayland at a future date, assuming it can?

    foghere2023F 1 Reply Last reply
    0
    • JonBJ JonB

      @foghere2023
      See if it works under Xorg?
      If so wait for it to work under Wayland at a future date, assuming it can?

      foghere2023F Offline
      foghere2023F Offline
      foghere2023
      wrote on last edited by foghere2023
      #12

      @JonB thank you guys, it works very well under Xorg,and I have test a simple Demo like is :

      void MainWindow::on_pushButton_clicked()
      {
          QMessageBox::information(this,"提示消息","已成功读档!");
      }
      

      This Demo only have one line of command here for QMessageBox , I have spent all day for the workaround,I don't know this is my false or Qt-team‘s. :(

      alt text

      as your piont ,this is not my false ?

      SGaistS 1 Reply Last reply
      0
      • foghere2023F foghere2023

        @JonB thank you guys, it works very well under Xorg,and I have test a simple Demo like is :

        void MainWindow::on_pushButton_clicked()
        {
            QMessageBox::information(this,"提示消息","已成功读档!");
        }
        

        This Demo only have one line of command here for QMessageBox , I have spent all day for the workaround,I don't know this is my false or Qt-team‘s. :(

        alt text

        as your piont ,this is not my false ?

        SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by
        #13

        @foghere2023 hi,

        It's neither. See the Wayland doc.

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

        JoeCFDJ foghere2023F 2 Replies Last reply
        0
        • SGaistS SGaist

          @foghere2023 hi,

          It's neither. See the Wayland doc.

          JoeCFDJ Offline
          JoeCFDJ Offline
          JoeCFD
          wrote on last edited by JoeCFD
          #14

          @SGaist https://community.nxp.com/t5/i-MX-Processors/QDialog-in-Wayland-works-incomplete/m-p/1544891#M196925

          foghere2023F 1 Reply Last reply
          0
          • SGaistS SGaist

            @foghere2023 hi,

            It's neither. See the Wayland doc.

            foghere2023F Offline
            foghere2023F Offline
            foghere2023
            wrote on last edited by
            #15

            @SGaist So guys,Reading the docs is just too difficult for me, someone tell me to wait, because there is a day that Qwidget App's Popups and parent windows can locate correctly .

            Is there any way we can get the program to work now?

            1 Reply Last reply
            0
            • JoeCFDJ JoeCFD

              @SGaist https://community.nxp.com/t5/i-MX-Processors/QDialog-in-Wayland-works-incomplete/m-p/1544891#M196925

              foghere2023F Offline
              foghere2023F Offline
              foghere2023
              wrote on last edited by
              #16

              @JoeCFD

              I had find this post,And I don't know what is weston.

              JoeCFDJ 2 Replies Last reply
              0
              • foghere2023F Offline
                foghere2023F Offline
                foghere2023
                wrote on last edited by
                #17

                Can someone help me?

                1 Reply Last reply
                0
                • JonBJ JonB referenced this topic on
                • foghere2023F Offline
                  foghere2023F Offline
                  foghere2023
                  wrote on last edited by
                  #18

                  Looking forward to friends repeating this bug

                  SGaistS 1 Reply Last reply
                  0
                  • foghere2023F foghere2023

                    Looking forward to friends repeating this bug

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

                    @foghere2023 please show some patience and allow at least 24 hours to pass before bumping your own thread. This is a voluntary driven forum and people may not live in the same timezone as you.

                    Weston is the reference implementation of a Wayland compositor.

                    As for your issue, the Wayland specification is explicit, windows cannot move themselves around the desktop.

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

                    JonBJ foghere2023F 2 Replies Last reply
                    2
                    • SGaistS SGaist

                      @foghere2023 please show some patience and allow at least 24 hours to pass before bumping your own thread. This is a voluntary driven forum and people may not live in the same timezone as you.

                      Weston is the reference implementation of a Wayland compositor.

                      As for your issue, the Wayland specification is explicit, windows cannot move themselves around the desktop.

                      JonBJ Online
                      JonBJ Online
                      JonB
                      wrote on last edited by
                      #20

                      @SGaist said in What can I do for my QtWidget-Program's Window correctly positioned on the screen?:

                      As for your issue, the Wayland specification is explicit, windows cannot move themselves around the desktop.

                      Thank you for this :)

                      1 Reply Last reply
                      0
                      • foghere2023F foghere2023

                        @JoeCFD

                        I had find this post,And I don't know what is weston.

                        JoeCFDJ Offline
                        JoeCFDJ Offline
                        JoeCFD
                        wrote on last edited by JoeCFD
                        #21

                        @foghere2023 said in What can I do for my QtWidget-Program's Window correctly positioned on the screen?:

                        weston

                        Weston is the reference implementation of a Wayland compositor, as well as a useful environment in and of itself.

                        You can easily create a customized widget to replace it. Make your mainwindow to be its parent and it will always pop-up on top of main window.

                        The source code is here and you can borrow some
                        https://code.qt.io/cgit/qt/qtbase.git/tree/src/widgets/dialogs/qmessagebox.cpp?h=dev

                        1 Reply Last reply
                        0
                        • foghere2023F foghere2023

                          @JoeCFD

                          I had find this post,And I don't know what is weston.

                          JoeCFDJ Offline
                          JoeCFDJ Offline
                          JoeCFD
                          wrote on last edited by JoeCFD
                          #22

                          @foghere2023
                          Two solutions in that post:

                          1. Replace weston with Qtwayland compositor
                          2. Don't use wayland at all, but use the eglfs platform plugin.

                          You may not be able to select 2. Then try solution 1.
                          The side effect is you can't use g2d rendering. If you do not have issues with it, then go with it. Find out how to replace weston with Qtwayland compositor

                          JonBJ 1 Reply Last reply
                          0
                          • SGaistS SGaist

                            @foghere2023 please show some patience and allow at least 24 hours to pass before bumping your own thread. This is a voluntary driven forum and people may not live in the same timezone as you.

                            Weston is the reference implementation of a Wayland compositor.

                            As for your issue, the Wayland specification is explicit, windows cannot move themselves around the desktop.

                            foghere2023F Offline
                            foghere2023F Offline
                            foghere2023
                            wrote on last edited by
                            #23

                            @SGaist @JoeCFD

                            My friends, I may not have accurately described my problem, so that you did not understand what happened here. I didn't want to move the window, but the message pop-up window appeared in the wrong place.

                            this is a Demo:

                            https://github.com/cppxiaozhu/Demo

                            alt text

                            JoeCFDJ 1 Reply Last reply
                            0
                            • foghere2023F foghere2023

                              @SGaist @JoeCFD

                              My friends, I may not have accurately described my problem, so that you did not understand what happened here. I didn't want to move the window, but the message pop-up window appeared in the wrong place.

                              this is a Demo:

                              https://github.com/cppxiaozhu/Demo

                              alt text

                              JoeCFDJ Offline
                              JoeCFDJ Offline
                              JoeCFD
                              wrote on last edited by
                              #24

                              @foghere2023 The post in the link had the exactly same problem.

                              The QDialog default position should locate at centered on top of the parent's top-level widget.
                              But QDialog in Wayland shows on a random position.

                              foghere2023F 1 Reply Last reply
                              0
                              • JoeCFDJ JoeCFD

                                @foghere2023 The post in the link had the exactly same problem.

                                The QDialog default position should locate at centered on top of the parent's top-level widget.
                                But QDialog in Wayland shows on a random position.

                                foghere2023F Offline
                                foghere2023F Offline
                                foghere2023
                                wrote on last edited by
                                #25

                                @JoeCFD Thank you friend,I have read that post,but I don't know how to do.

                                1 Reply Last reply
                                0
                                • JoeCFDJ JoeCFD

                                  @foghere2023
                                  Two solutions in that post:

                                  1. Replace weston with Qtwayland compositor
                                  2. Don't use wayland at all, but use the eglfs platform plugin.

                                  You may not be able to select 2. Then try solution 1.
                                  The side effect is you can't use g2d rendering. If you do not have issues with it, then go with it. Find out how to replace weston with Qtwayland compositor

                                  JonBJ Online
                                  JonBJ Online
                                  JonB
                                  wrote on last edited by JonB
                                  #26

                                  @foghere2023

                                  but I don't know how to do.

                                  @JoeCFD said:

                                  Two solutions in that post:

                                  1. Replace weston with Qtwayland compositor
                                  2. Don't use wayland at all, but use the eglfs platform plugin.

                                  You may not be able to select 2. Then try solution 1.

                                  If that is what @JoeCFD are the alternatives then have you tried either of them?

                                  foghere2023F 1 Reply Last reply
                                  0
                                  • JonBJ JonB

                                    @foghere2023

                                    but I don't know how to do.

                                    @JoeCFD said:

                                    Two solutions in that post:

                                    1. Replace weston with Qtwayland compositor
                                    2. Don't use wayland at all, but use the eglfs platform plugin.

                                    You may not be able to select 2. Then try solution 1.

                                    If that is what @JoeCFD are the alternatives then have you tried either of them?

                                    foghere2023F Offline
                                    foghere2023F Offline
                                    foghere2023
                                    wrote on last edited by
                                    #27

                                    @JonB @SGaist @JoeCFD

                                    Hi friend,this is a simple Demo,could you show me how to improve or repair this issue ?

                                    https://github.com/cppxiaozhu/Demo

                                    I really want to fix this problem, but there is no example to learn.

                                    The compilation environment I use is a binary version downloaded from the QT official website. Now almost all Linux distributions have defaulted to the wayland environment, and the official tools of QT cannot adapt to this new situation. I sincerely hope that someone can seriously deal with
                                    the Bug that can be reproduced in one line of code

                                    JonBJ 1 Reply Last reply
                                    0
                                    • foghere2023F foghere2023

                                      @JonB @SGaist @JoeCFD

                                      Hi friend,this is a simple Demo,could you show me how to improve or repair this issue ?

                                      https://github.com/cppxiaozhu/Demo

                                      I really want to fix this problem, but there is no example to learn.

                                      The compilation environment I use is a binary version downloaded from the QT official website. Now almost all Linux distributions have defaulted to the wayland environment, and the official tools of QT cannot adapt to this new situation. I sincerely hope that someone can seriously deal with
                                      the Bug that can be reproduced in one line of code

                                      JonBJ Online
                                      JonBJ Online
                                      JonB
                                      wrote on last edited by
                                      #28

                                      @foghere2023
                                      You simply keep saying you don't know what to do and asking for help. We know it's know in the place you want. We know what your code is. We have said this is a Wayland issue, there is no more to ask about.

                                      Let us know when you have tried, say, @JoeCFD's suggestions....

                                      foghere2023F 1 Reply Last reply
                                      1
                                      • JonBJ JonB

                                        @foghere2023
                                        You simply keep saying you don't know what to do and asking for help. We know it's know in the place you want. We know what your code is. We have said this is a Wayland issue, there is no more to ask about.

                                        Let us know when you have tried, say, @JoeCFD's suggestions....

                                        foghere2023F Offline
                                        foghere2023F Offline
                                        foghere2023
                                        wrote on last edited by foghere2023
                                        #29

                                        @JonB

                                        Thank you for your patient explanation,

                                        but the matter of refactoring wedgit is limited by my skills, and I can't solve it by myself.

                                        I hope someone can give an example that can be used for reference.

                                        Of course, it would be even better if the organization that promotes wayland or the Qt official can fix this problem.

                                        I've been looking for discussions on the internet these days, but it's very strange to find so few people suffering from this problem.

                                        jsulmJ 1 Reply Last reply
                                        0
                                        • foghere2023F foghere2023

                                          @JonB

                                          Thank you for your patient explanation,

                                          but the matter of refactoring wedgit is limited by my skills, and I can't solve it by myself.

                                          I hope someone can give an example that can be used for reference.

                                          Of course, it would be even better if the organization that promotes wayland or the Qt official can fix this problem.

                                          I've been looking for discussions on the internet these days, but it's very strange to find so few people suffering from this problem.

                                          jsulmJ Offline
                                          jsulmJ Offline
                                          jsulm
                                          Lifetime Qt Champion
                                          wrote on last edited by jsulm
                                          #30

                                          @foghere2023 said in What can I do for my QtWidget-Program's Window correctly positioned on the screen?:

                                          but the matter of refactoring wedgit

                                          The suggestion was not to refactor anything.
                                          This was suggested by @JoeCFD

                                          1. Replace weston with Qtwayland compositor
                                          2. Don't use wayland at all, but use the eglfs platform plugin.
                                          

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

                                          foghere2023F 1 Reply Last reply
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