forked from zietzm/Helmholtz_Test_Bench
Martin Zietz
79 lines
3.6 KiB
Python
79 lines
3.6 KiB
Python
# Main file of the program. Run this file to start the application.
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# import packages:
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from os.path import exists
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import traceback
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from tkinter import messagebox
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# import other project files:
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import cage_func as func
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from User_Interface import HelmholtzGUI
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from User_Interface import ui_print
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import User_Interface as ui
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import globals as g
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import config_handling as config
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import csv_logging as log
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def program_end(): # called on exception or when user closes application
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# safely shuts everything down and saves any unsaved data
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g.exitFlag = True # tell everything else the application has been closed
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if g.app is not None: # the main Tkinter app object has been initialized before
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if g.app.pages[ui.ExecuteCSVMode].csv_thread is not None: # check if a thread for executing CSVs exists
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g.app.pages[ui.ExecuteCSVMode].csv_thread.stop() # stop the thread
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func.shut_down_all() # shut down devices
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if log.unsaved_data: # Check if there is logged data that has not been saved yet
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# open pop-up to ask user if he wants to save the data:
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save_log = messagebox.askquestion("Save log data?", "There seems to be unsaved logging data. "
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"Do you wish to write it to a file now?")
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if save_log == 'yes': # user has chosen yes
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filepath = log.select_file() # let user select a file to write to
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log.write_to_file(log.log_data, filepath) # write the data to the chosen file
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if g.app is not None:
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g.app.destroy() # close application
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try: # start normal operations
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config.CONFIG_FILE = 'config.ini' # set the config file path
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# ToDo: remember what the last config file was
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if not exists(config.CONFIG_FILE): # config file does not exist yet
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print("Config file not found, creating new from defaults.")
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config.reset_config_to_default() # create configuration object from defaults
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config.write_config_to_file(config.CONFIG_OBJECT) # write the configuration object to a new file
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config.CONFIG_OBJECT = config.get_config_from_file(config.CONFIG_FILE) # read configuration data from config file
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print("Starting setup...")
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func.setup_all() # initiate communication with devices and initialize all major program objects
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print("\nOpening User Interface...")
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g.app = HelmholtzGUI() # initialize user interface
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g.exitFlag = False # tell all functions that the user interface is now running
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g.app.state('zoomed') # open UI in maximized window
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g.app.StatusDisplay.continuous_label_update(g.app, 500) # initiate regular Status Display updates (ms)
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ui_print("Program Initialized")
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config.check_config(config.CONFIG_OBJECT) # check config for values exceeding limits
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ui_print("\nStarting setup...") # do setup again, so it is printed in the UI console ToDo: do it only once
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func.setup_all() # initiate communication with devices and initialize all major program objects
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g.app.protocol("WM_DELETE_WINDOW", program_end) # call program_end function if user closes the application
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g.app.mainloop() # start main program loop
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except Exception as e: # An error has occurred somewhere in the program
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print("\nAn error occurred, Shutting down.")
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# shop pup-up error message:
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message = "%s.\nSee python console traceback for more details. " \
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"\nShutting down devices, check equipment to confirm." % e
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messagebox.showerror("Error!", message)
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print(traceback.print_exc()) # print error traceback in the python console
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program_end() # safely close everything and shut down devices
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