def save_changes(self):
name = self.name
if name in self.loops:
# Create a task that checks if loop stop has been request on each measure point of the loop
task = Task(self.parent.check_stop_request)
# grab data for creating a loop from elements of the widget
try:
lower = float(self.textbox_lower_limit.text())
upper = float(self.textbox_upper_limit.text())
num = float(self.textbox_num.text())
delay = float(self.textbox_step.text())
sweep_division = float(self.sweep_parameter_divider.text())
except Exception as e:
warning_string = "Errm, looks like something went wrong ! \nHINT: Measurement parameters not set. \n" \
+ str(e)
show_error_message("Warning", warning_string)
else:
# Create dividres and add them to a dict of dividers (shared with main window)
sweep_parameter = self.sweep_parameter_cb.currentData()
if sweep_division != 1:
full_name = str(sweep_parameter)
sweep_parameter = VoltageDivider(sweep_parameter,
sweep_division)
self.dividers[full_name] = sweep_parameter
# create a list and fill it with actions created by user (dividers if they are attached)
actions = []
for i in range(len(self.current_loop_actions_dictionary)):
action_array = self.current_loop_actions_dictionary[
"action" + str(i)]
if action_array is not None:
action_parameter = action_array[1].currentData()
try:
division = float(action_array[2].text())
except Exception as e:
show_error_message("Warning", str(e))
else:
if division != 1:
action_parameter = VoltageDivider(
action_parameter, division)
actions.append(action_parameter)
# append a task that checks for loop stop request
actions.append(task)
self.loops[name].sweep_values = sweep_parameter.sweep(lower,
upper,
num=num)
self.loops[name].delay = delay
self.loops[name].actions = list(actions)
self.parent.update_loops_preview(edit=name)
else:
show_error_message(
"Warning",
"The loop does not exist. \nNew loop will be created")
self.name = ""
self.create_loop()
self.close()
def create_loop(self):
"""
Creates a new loop from data input by user. Adds newly created loop to "loops" dictionary in MainWindow.
Creates action to be executed upon running qcodes and adds it to "actions" list in MainWindow
:return: NoneType
"""
if self.name != "":
self.save_changes()
else:
# otherwise create a new loop and save it to the loops dictionary
# Try to fetch user input data and cast it to floats
# If it fails, throw an exception
# Otherwise, create a loop, add it to the shared dict
# Create a task that checks if loop stop has been request on each measure point of the loop
task = Task(self.parent.check_stop_request)
# grab data for creating a loop from elements of the widget
try:
lower = float(self.textbox_lower_limit.text())
upper = float(self.textbox_upper_limit.text())
num = float(self.textbox_num.text())
delay = float(self.textbox_step.text())
sweep_division = float(self.sweep_parameter_divider.text())
except Exception as e:
warning_string = "Errm, looks like something went wrong ! \nHINT: Measurement parameters not set. \n"\
+ str(e)
show_error_message("Warning", warning_string)
else:
# Create dividres and add them to a dict of dividers (shared with main window)
sweep_parameter = self.sweep_parameter_cb.currentData()
if sweep_division != 1:
full_name = str(sweep_parameter)
sweep_parameter = VoltageDivider(sweep_parameter,
sweep_division)
self.dividers[full_name] = sweep_parameter
# create a list and fill it with actions created by user (dividers if they are attached)
actions = []
for i in range(len(self.current_loop_actions_dictionary)):
action_array = self.current_loop_actions_dictionary[
"action" + str(i)]
if action_array is not None:
action_parameter = action_array[1].currentData()
try:
division = float(action_array[2].text())
except Exception as e:
show_error_message("Warning", str(e))
else:
if division != 1:
action_parameter = VoltageDivider(
action_parameter, division)
actions.append(action_parameter)
# append a task that checks for loop stop request
actions.append(task)
# pass dereferenced list of actions to a loops each method
if len(self.instruments):
lp = qc.Loop(sweep_parameter.sweep(lower, upper, num=num),
delay,
progress_interval=20).each(*actions)
else:
show_error_message(
"Warning", "U can't make a loop without instruments !")
return
name = "loop" + str(len(self.parent.shown_loops) + 1)
self.loops[name] = lp
self.actions.append(lp)
self.parent.update_loops_preview()
"""# if a loop name has been passed to this widget then overwrite that loop in the loops dictionary