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Diffstat (limited to 'examples/widgets/threads/thread_signals.py')
| -rw-r--r-- | examples/widgets/threads/thread_signals.py | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/examples/widgets/threads/thread_signals.py b/examples/widgets/threads/thread_signals.py deleted file mode 100644 index 43c79f4b7..000000000 --- a/examples/widgets/threads/thread_signals.py +++ /dev/null @@ -1,100 +0,0 @@ - -############################################################################# -## -## Copyright (C) 2020 The Qt Company Ltd. -## Contact: https://www.qt.io/licensing/ -## -## This file is part of the Qt for Python examples of the Qt Toolkit. -## -## $QT_BEGIN_LICENSE:BSD$ -## You may use this file under the terms of the BSD license as follows: -## -## "Redistribution and use in source and binary forms, with or without -## modification, are permitted provided that the following conditions are -## met: -## * Redistributions of source code must retain the above copyright -## notice, this list of conditions and the following disclaimer. -## * Redistributions in binary form must reproduce the above copyright -## notice, this list of conditions and the following disclaimer in -## the documentation and/or other materials provided with the -## distribution. -## * Neither the name of The Qt Company Ltd nor the names of its -## contributors may be used to endorse or promote products derived -## from this software without specific prior written permission. -## -## -## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -## -## $QT_END_LICENSE$ -## -############################################################################# - -import sys -from PySide6.QtCore import QObject, QThread, Signal, Slot -from PySide6.QtWidgets import QApplication, QPushButton, QVBoxLayout, QWidget - - -# Create a basic window with a layout and a button -class MainForm(QWidget): - def __init__(self): - super().__init__() - self.setWindowTitle("My Form") - self.layout = QVBoxLayout() - self.button = QPushButton("Click me!") - self.button.clicked.connect(self.start_thread) - self.layout.addWidget(self.button) - self.setLayout(self.layout) - - # Instantiate and start a new thread - def start_thread(self): - instanced_thread = WorkerThread(self) - instanced_thread.start() - - # Create the Slots that will receive signals - @Slot(str) - def update_str_field(self, message): - print(message) - - @Slot(int) - def update_int_field(self, value): - print(value) - - -# Signals must inherit QObject -class MySignals(QObject): - signal_str = Signal(str) - signal_int = Signal(int) - - -# Create the Worker Thread -class WorkerThread(QThread): - def __init__(self, parent=None): - QThread.__init__(self, parent) - # Instantiate signals and connect signals to the slots - self.signals = MySignals() - self.signals.signal_str.connect(parent.update_str_field) - self.signals.signal_int.connect(parent.update_int_field) - - def run(self): - # Do something on the worker thread - a = 1 + 1 - # Emit signals whenever you want - self.signals.signal_int.emit(a) - self.signals.signal_str.emit("This text comes to Main thread from our Worker thread.") - - -if __name__ == "__main__": - app = QApplication(sys.argv) - window = MainForm() - window.show() - sys.exit(app.exec()) |