What can I do for my QtWidget-Program's Window correctly positioned on the screen？
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@JonB Sorry, I cann't find the similar posts by keyword 'wayland'，I think QtWidget APP's QMessageBox cann't locate his parent window position should be a serious mistake，could you give me some similar posts links?
@foghere2023
Googleqt wayland move window -
@foghere2023 How do you show those messages?
See https://doc.qt.io/qt-6/qdialog.html#QDialog : if you provide parent to dialog constructor the dialog should be automatically centered on the parent.@jsulm Hi guys ，I find someone had the same problem as me：
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. Even I try to use "move" to assign a specific position, it doesn't work. -
@foghere2023 How do you show those messages?
See https://doc.qt.io/qt-6/qdialog.html#QDialog : if you provide parent to dialog constructor the dialog should be automatically centered on the parent.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 ?
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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 ?
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@foghere2023
See if it works under Xorg?
If so wait for it to work under Wayland at a future date, assuming it can?@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. :(
as your piont ,this is not my false ?
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@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. :(
as your piont ,this is not my false ?
@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 -
@foghere2023 hi,
It's neither. See the Wayland doc.
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@foghere2023 hi,
It's neither. See the Wayland doc.
@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?
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I had find this post，And I don't know what is weston.
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Can someone help me?
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J JonB referenced this topic on
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Looking forward to friends repeating this bug
@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 -
@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.
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I had find this post，And I don't know what is weston.
@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 -
I had find this post，And I don't know what is weston.
@foghere2023
Two solutions in that post:- Replace weston with Qtwayland compositor
- 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 -
@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.
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
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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
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@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.@JoeCFD Thank you friend，I have read that post，but I don't know how to do.
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@foghere2023
Two solutions in that post:- Replace weston with Qtwayland compositor
- 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 compositorbut I don't know how to do.
@JoeCFD said:
Two solutions in that post:
- Replace weston with Qtwayland compositor
- 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?
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but I don't know how to do.
@JoeCFD said:
Two solutions in that post:
- Replace weston with Qtwayland compositor
- 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?
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
