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from PyQt5.QtCore import (
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pyqtSlot,
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QRunnable,
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pyqtSignal,
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pyqtSlot,
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)
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from PyQt5.QtCore import QObject
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import traceback
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import sys
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class WorkerSignals(QObject):
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finished = pyqtSignal()
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error = pyqtSignal(tuple)
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result = pyqtSignal(object)
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class ImageGeneratorWorker(QRunnable):
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def __init__(self, fn, *args, **kwargs):
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super(ImageGeneratorWorker, self).__init__()
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self.fn = fn
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self.args = args
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self.kwargs = kwargs
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self.signals = WorkerSignals()
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@pyqtSlot()
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def run(self):
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try:
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result = self.fn(*self.args, **self.kwargs)
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except:
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traceback.print_exc()
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exctype, value = sys.exc_info()[:2]
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self.signals.error.emit((exctype, value, traceback.format_exc()))
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else:
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self.signals.result.emit(result)
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finally:
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self.signals.finished.emit()
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