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Progress.py
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Progress.py
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from PySide6.QtCore import QObject, Signal, QThread, QEventLoop
from PySide6.QtWidgets import QWidget, QProgressBar, QPushButton, QHBoxLayout
class Calculator(QObject):
calculationDone = Signal(object)
def __init__(self):
QObject.__init__(self)
self.progress = Progress()
def main(self, args, kwargs):
self.calculationDone.emit(self.calculate(*args, **kwargs))
def calculate(self, *args):
return True
class Worker(QThread):
_startCalc = Signal(tuple, dict)
_init = Signal()
def __init__(self, parent=None):
QThread.__init__(self, parent)
def start(self):
QThread.start(self)
loop = QEventLoop()
self._init.connect(loop.quit)
loop.exec_()
def createCalculator(self): # Reimplement
return Calculator()
def run(self):
self.calculator = self.createCalculator()
self._startCalc.connect(self.calculator.main)
self._init.emit()
self.exec_()
def startCalculation(self, *args, **kwargs):
self._startCalc.emit(args, kwargs)
class Progress(QObject):
progressSetup = Signal(int)
progressNotified = Signal(int)
progressCompleted = Signal()
def __init__(self):
QObject.__init__(self)
self.progress = 0
self.maximum = 0
self._aborted = False
def abort(self):
self._aborted = True
def setup(self, maximum):
self._aborted = False
self.maximum = maximum
self.progress = 0
self.progressSetup.emit(self.maximum)
def notify(self):
if self._aborted:
return True
self.progress += 1
self.progressNotified.emit(self.progress)
def complete(self):
self.progress = self.maximum
self.progressCompleted.emit()
class ProgressView(QWidget):
def __init__(self, progress=None, parent=None):
QWidget.__init__(self, parent)
self.progressBar = QProgressBar()
self.abortButton = QPushButton()
layout = QHBoxLayout()
layout.addWidget(self.progressBar)
layout.addWidget(self.abortButton)
self.setLayout(layout)
if progress:
self.setProgress(progress)
def setProgress(self, progress):
self.progress = progress
self.progress.progressSetup.connect(self.progressBar.setMaximum)
self.progress.progressNotified.connect(self.progressBar.setValue)
self.progress.progressCompleted.connect(self.progressCompleted)
self.abortButton.clicked.connect(self.progress.abort)
def progressCompleted(self):
self.progressBar.setValue(self.progress.maximum)