New submission from MB SANTALU <mbsant...@gmail.com>:
Updating a label's text on a transparent widget in MacOS behaves strangely,
previous text remains partially visible (see screenshot)
System Specs: MacOS Monterey 12.0.1 and Python 3.10
Code:
import sys
from PyQt6 import QtWidgets, QtCore
from PyQt6.QtCore import QTimer
from PyQt6.QtGui import QFont
from PyQt6.QtWidgets import QLabel, QFrame
def update_label():
l1.setText("Bye!")
l1.update()
window.repaint()
app = QtWidgets.QApplication(sys.argv)
window = QtWidgets.QWidget()
window.setAttribute(QtCore.Qt.WidgetAttribute.WA_TranslucentBackground)
window.setWindowFlag(QtCore.Qt.WindowType.FramelessWindowHint)
window.setFixedSize(800, 600)
font = QFont()
font.setPointSize(72)
l1 = QLabel(window)
l1.setText("Hello World")
l1.setFont(font)
l1.setStyleSheet("color:red")
window.show()
timer = QTimer()
timer.setInterval(1000)
timer.timeout.connect(update_label)
timer.start()
app.exec()
----------
components: macOS
files: sof.png
messages: 408931
nosy: mbsantalu, ned.deily, ronaldoussoren
priority: normal
severity: normal
status: open
title: Changing a label's text is not working properly on transparent widgets
type: behavior
versions: Python 3.10
Added file: https://bugs.python.org/file50503/sof.png
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue46135>
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