def run(self):
""" Run the model synchronously.
Shows a modal dialog until the run completes.
Returns the dialog.
"""
runner = self.runner
gui_handler = lambda *args: deferred_call(self.handle_error, *args)
runner.error_handler = gui_handler
dialog = RunDialog(parent=self.parent,
title='Running model...',
text='Please wait while the model runs.')
dialog.observe('rejected', lambda change: runner.cancel())
dialog.show()
event_loop = QtCore.QEventLoop()
timer = QtCore.QTimer()
def start_run():
runner.run()
timer.setInterval(50)
timer.timeout.connect(check_loop)
timer.start()
def check_loop():
dialog.output = runner.output()
if not runner.running:
timer.stop()
event_loop.quit()
timed_call(50, start_run)
event_loop.exec_()
dialog.accept()
return dialog
