def busyCursor(self, cursor=None):
"""Performs code with a busy cursor set for the application.
The default cursor to use is the Qt.WaitCursor. Usage:
with app.busyCursor():
...
"""
if cursor is None:
cursor = QCursor(Qt.WaitCursor)
KApplication.setOverrideCursor(cursor)
try:
yield
finally:
KApplication.restoreOverrideCursor()
