24 lines
596 B
Python
24 lines
596 B
Python
from ..Qt import QtGui, QtCore
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__all__ = ['BusyCursor']
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class BusyCursor(object):
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"""Class for displaying a busy mouse cursor during long operations.
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Usage::
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with pyqtgraph.BusyCursor():
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doLongOperation()
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May be nested.
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"""
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active = []
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def __enter__(self):
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QtGui.QApplication.setOverrideCursor(QtGui.QCursor(QtCore.Qt.WaitCursor))
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BusyCursor.active.append(self)
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def __exit__(self, *args):
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BusyCursor.active.pop(-1)
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if len(BusyCursor.active) == 0:
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QtGui.QApplication.restoreOverrideCursor()
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