app.py

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"""!
********************************************************************************
@file   app.py
@brief  Application entry file
********************************************************************************
"""
 
# autopep8: off
import sys
import os
import time
import logging
 
sys.path.append(os.path.join(os.path.dirname(__file__), ".."))
from Source.version import __title__, __version__  # pylint: disable=wrong-import-position
from Source.Util.app_data import I_LOG_LEVEL_DEFAULT, read_verbosity_settings, get_computer_name, ICON_APP  # pylint: disable=wrong-import-position
from Source.Util.app_err_handler import UncaughtHook  # pylint: disable=wrong-import-position
from Source.Util.app_log import LogConfig  # pylint: disable=wrong-import-position
from Source.Util.gui_toolkit import APPLICATION, SHARED_MEMORY, check_app_already_open, run_app, config_window, config_app  # pylint: disable=wrong-import-position
 
from Source.Controller.main_window import MainWindow  # pylint: disable=wrong-import-position
from Source.Controller.splash_screen import create_splash_screen, F_MIN_SPLASH_SCREEN_TIME  # pylint: disable=wrong-import-position
# autopep8: on
 
log = logging.getLogger(__title__)
 
 
def start_application(b_start_app: bool = True, test_mode: bool = False) -> tuple[APPLICATION | None, MainWindow]:
    """!
    @brief Start application
    @param b_start_app : [True] start application; [False] only app initialization for pytest
    @param test_mode : status if application run in test mode
    @return windows and application object
    """
    log_config = LogConfig(I_LOG_LEVEL_DEFAULT)
    log_config.update_log_level(read_verbosity_settings())
    log.debug("Starting application")
    log.debug("Running from %s", os.getcwd())
    if test_mode:
        log.warning("Test mode is active")
 
    # Application
    if b_start_app:
        app = APPLICATION
    else:
        app = None
    if app is not None:
        my_app = app(sys.argv)
        config_app(my_app, icon=ICON_APP)  # set icon direct
    else:
        my_app = None
 
    # Set custom application id to show correct icon instead of Python in the task bar
    try:
        from ctypes import windll  # only exists on windows. # pylint: disable=import-outside-toplevel
        app_id = __title__ + "." + __version__
        log.debug("Setting explicit app user model id: %s", app_id)
        windll.shell32.SetCurrentProcessExplicitAppUserModelID(app_id)
    except ImportError:
        pass
 
    splash = create_splash_screen()
 
    f_start_time = time.time()
    config_window(splash, show=True, thread=True)
 
    if b_start_app and (my_app is not None):
        config_app(my_app, process_events=True)
 
    authenticated = True
 
    # Exception Handler
    qt_exception_hook = UncaughtHook()
    window = MainWindow(qt_exception_hook, log_config, test_mode=test_mode, authenticated=authenticated)
 
    config_window(window, icon=ICON_APP)  # set icon again if not set before
    qt_exception_hook.set_main_window_controller(window)
 
    f_inti_time = time.time() - f_start_time
    if f_inti_time < F_MIN_SPLASH_SCREEN_TIME:
        time.sleep(F_MIN_SPLASH_SCREEN_TIME - f_inti_time)
 
    config_window(splash, show=False, thread=True)
 
    return my_app, window
 
 
if __name__ == "__main__":
    shared_memory = SHARED_MEMORY(__title__)  # need to use as global variable
    if check_app_already_open(shared_memory):
        sys.exit("Another instance is already running")
    o_app, o_window = start_application()
    run_app(o_window, o_app, close_event=True)