54 lines
1.5 KiB
Python
54 lines
1.5 KiB
Python
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# -*- coding: utf-8 -*-
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"""
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Using ProgressDialog to show progress updates in a nested process.
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"""
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import initExample ## Add path to library (just for examples; you do not need this)
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import time
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import pyqtgraph as pg
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from pyqtgraph.Qt import QtCore, QtGui
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app = QtGui.QApplication([])
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def runStage(i):
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"""Waste time for 3 seconds while incrementing a progress bar.
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"""
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with pg.ProgressDialog("Running stage %s.." % i, maximum=100, nested=True) as dlg:
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for j in range(100):
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time.sleep(0.03)
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dlg += 1
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if dlg.wasCanceled():
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print("Canceled stage %s" % i)
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break
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def runManyStages(i):
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"""Iterate over runStage() 3 times while incrementing a progress bar.
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"""
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with pg.ProgressDialog("Running stage %s.." % i, maximum=3, nested=True, wait=0) as dlg:
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for j in range(1,4):
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runStage('%d.%d' % (i, j))
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dlg += 1
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if dlg.wasCanceled():
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print("Canceled stage %s" % i)
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break
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with pg.ProgressDialog("Doing a multi-stage process..", maximum=5, nested=True, wait=0) as dlg1:
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for i in range(1,6):
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if i == 3:
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# this stage will have 3 nested progress bars
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runManyStages(i)
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else:
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# this stage will have 2 nested progress bars
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runStage(i)
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dlg1 += 1
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if dlg1.wasCanceled():
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print("Canceled process")
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break
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