Details
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Bug
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Resolution: Invalid
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Not Evaluated
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None
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5.15.1, 6.0.2
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None
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Linux Qt 5.15.1, Pyside2 (5.15.0), PySide6 (6.0.2)
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Linux/X11
Description
I want to add a QMainWindow to a QDialog. In order to do that, I set a layout, add the QMainWindow to that layout and then put my center widgets and dockWidgets to it. This code explains the setup (I have the same problem in my C++ code, so this is not Python related):
import sys import PySide2 from PySide2.QtWidgets import QApplication, QDialog, QVBoxLayout, QMainWindow, QLabel, \ QDockWidget class Dialog1(QDialog): def __init__(self, parent=None): super(Dialog1, self).__init__(parent) layout = QVBoxLayout() self.setLayout(layout) self.mw = QMainWindow(self) layout.addWidget(self.mw) self.mw.setCentralWidget(QLabel("CentralWidget")) dock = QDockWidget() dock.layout().addWidget(QLabel("DockWidget")) self.mw.addDockWidget(PySide2.QtCore.Qt.DockWidgetArea.RightDockWidgetArea, dock) app = QApplication(sys.argv) ui = Dialog1() ui.show() sys.exit(app.exec_())
The result (after resizing) is this:
When I don't set the parent or set it to null:
self.mw = QMainWindow()
or
self.mw = QMainWindow(None)
or
self.mw = QMainWindow(self) self.mw.setParent(None)
I get as expected:
In my C++ code, the `QMainWindow` construction and the `addWidget` is done by the generated code from the UI file. My current workaround is to do something like this after `setupUi`
ui.layout().removeWidget(ui.mw) ui.mw.setParent(None) ui.layout().addWidget(ui.mw)
