Details
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Bug
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Resolution: Out of scope
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Not Evaluated
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None
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6.3.2, 6.4.0
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None
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macOS 12.6
Rectangle Pro 2.6.2
Python 3.10.7 (installed with MacPorts)
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macOS
Description
When using a window manager such as Rectangle, the window will blank to grey when resized by the manager if it contains a QOpenGLWidget. This doesn't happen if it only contains regular widget.
This can be demonstrated with this simple program:
from PySide6.QtGui import QPaintEvent, QPainter, QColor from PySide6.QtOpenGLWidgets import QOpenGLWidget from PySide6.QtWidgets import QApplication, QMainWindow, QPushButton class MyWidget(QOpenGLWidget): def paintEvent(self , event: QPaintEvent): painter = QPainter(self) painter.fillRect(0, 0, 50, 50, QColor.fromRgb(255, 255, 128)) painter.end() class MainWindow(QMainWindow): def __init__(self): super().__init__() self.setCentralWidget(MyWidget()) app = QApplication(sys.argv) window = MainWindow() window.show() app.exec()
Here is a recording of the behaviour:
Note that for a resizeGL()/paintGL() implementation, resizeGL() is called when the window manager resizes the window, but paintGL() is not.
If MyWidget() is replaced by some other widget (e.g. a button), the behaviour is as expected.
