How to make a widget in the center of the screen in PySide/PyQt?

Question

This code works, but I wonder if there is any simpler way:

def center(self):
    qr = self.frameGeometry()
    cp = gui.QDesktopWidget().availableGeometry().center()
    qr.moveCenter(cp)
    self.move(qr.topLeft())

A nice snippet from ZetCode. I wondered if there was some shorter way, too. — Oleh Prypin, Feb 20 '12 at 22:48

score 20 · Answer 1 · edited May 25 '12 at 07:52

20

just add this line to your main windows :

self.move(QtGui.QApplication.desktop().screen().rect().center()- self.rect().center())

edited May 25 '12 at 07:52

Martijn Pieters

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answered May 24 '12 at 23:58

alrawab

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score 9 · Answer 2 · answered Nov 10 '12 at 12:39

9

self.move(QDesktopWidget().availableGeometry().center() - self.frameGeometry().center())

answered Nov 10 '12 at 12:39

inv

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I changed the second argumento to make it more centered. – Dielson Sales Mar 22 '14 at 00:01

score 5 · Accepted Answer · answered Feb 20 '12 at 17:35

5

No, it's the simplest way. Here is a snippet I've used in C++:

  QRect desktopRect = QApplication::desktop()->availableGeometry(this);
  QPoint center = desktopRect.center();

  move(center.x() - width() * 0.5, center.y() - height());

answered Feb 20 '12 at 17:35

Dmitriy

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I think it's better to use `frameGeometry()` like in OP's code instead `width()` and `height()`([Qt. Window Geometry](http://developer.qt.nokia.com/doc/qt-4.8/application-windows.html#window-geometry)) – reclosedev Feb 20 '12 at 18:07

score 2 · Answer 4 · edited Jul 13 '17 at 18:43

2

Just another "func-style" example. If you use it several times.

screen_center = lambda widget: QApplication.desktop().screen().rect().center()- widget.rect().center()

And every time in code:

widget.move(screen_center(widget))

edited Jul 13 '17 at 18:43

eyllanesc

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answered Jul 13 '17 at 18:38

KMiNT21

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score 2 · Answer 5 · answered Jul 28 '20 at 11:21

QDesktopWidget is deprecated. Use QScreen instead.

    def centerWidgetOnScreen(self, widget):
        centerPoint = QtGui.QScreen.availableGeometry(QtWidgets.QApplication.primaryScreen()).center()
        fg = widget.frameGeometry()
        fg.moveCenter(centerPoint)
        widget.move(fg.topLeft())

score 1 · Answer 6 · answered Aug 01 '20 at 12:39

1

It works for me:

from PySide2.QtGui import QGuiApplication

# ...

    def center(self):
        centerPoint = QGuiApplication.screens()[0].geometry().center()
        self.move(centerPoint - self.frameGeometry().center())

answered Aug 01 '20 at 12:39

8Observer8

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How to make a widget in the center of the screen in PySide/PyQt?

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