CODEWITHSUNDEEP
pythonqtpython-3.xpyqtpyqt5
John O'Neil
John O'Neil

Reputation: 365

Why won't my main window center properly on the screen?

I am trying to center my main window on my screen however neither of the two common ways are working. They both put it way too low and a little off center width wise. Here is what I have tried:

Way One:

screen = QDesktopWidget().screenGeometry()
x = int((screen.width() - self.width()) / 2)
y = int((screen.height() - self.height()) / 2)
self.move(x, y)

Way Two:

self.setGeometry(QStyle.alignedRect(Qt.LeftToRight, Qt.AlignCenter, self.size(),
                                            QDesktopWidget().availableGeometry()))

Note that right before doing this I set the width and height like this:

screen = QDesktopWidget().screenGeometry()
        ww = int(screen.width() / 1.5)
        wh = int(screen.height() / 2)

        self.resize(ww, wh)

Upvotes: 1

Views: 3137

Answers (2)

Keaton L
Keaton L

Reputation: 41

After trying all the solutions, I summarized the only correct way in pyside6. If you have called adjustsize() in the widget, you need to override the resizeEvent method to get the correct widget size:

    def resizeEvent(self, event):
        center = QtGui.QGuiApplication.primaryScreen().geometry().center()
        self.move(center - self.rect().center())

        return super().resizeEvent(event)

Upvotes: 0

Venom
Venom

Reputation: 1060

you are moving the topLeft of your widget to the screen center that's why it is not centered. You should take into account the size of your widget.

x = QApplication().desktop().screenGeometry().center().x()
y = QApplication().desktop().screenGeometry().center().y()
self.move(x - self.geometry().width()/2, y - self.geometry().height()/2)

Edit :

this works if self is the mainWindow. If it is a widget with a parent, move will move(x,y) will move your widget relatively to its parent. you should translate the coordinates below (global coordinates) to Parent coordinates, using :

QPoint QWidget.mapFromGlobal (self, QPoint)

Upvotes: 2

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