Source code for module_that_can_invoke_gui_from_cli

  1"""Calculate arithmetic expressions from GUI."""
  2
  3import pydantic
  4import PySimpleGUI
  5
  6import package_name_to_import_with
  7
  8FIRST_NUMBER_INPUT = "first_number"
  9SECOND_NUMBER_INPUT = "second_number"
 10OPERATOR_INPUT = "operator"
 11OPERATION_RESULT = "result"
 12CLOSE_BUTTON = "Close"
 13
 14

[docs]
 15@pydantic.validate_call(validate_return=True)
 16def define_gui_layout() -> list[list[pydantic.InstanceOf[PySimpleGUI.Element]]]:
 17    """Prepare design of the GUI.
 18
 19    Returns
 20    -------
 21    list[list[PySimpleGUI.Element]]
 22        elements of the GUI
 23    """
 24    layout = [
 25        [PySimpleGUI.Text("Enter first number"), PySimpleGUI.Input(key=FIRST_NUMBER_INPUT)],
 26        [
 27            PySimpleGUI.Text("Enter operator"),
 28            PySimpleGUI.OptionMenu(
 29                package_name_to_import_with.calculator_sub_package.BinaryArithmeticOperator,
 30                key=OPERATOR_INPUT,
 31            ),
 32        ],
 33        [PySimpleGUI.Text("Enter second number"), PySimpleGUI.Input(key=SECOND_NUMBER_INPUT)],
 34        [PySimpleGUI.Button(button_text="Submit")],
 35        [PySimpleGUI.Text("Operation Result", key=OPERATION_RESULT)],
 36        [PySimpleGUI.Button(button_text=CLOSE_BUTTON)],
 37    ]
 38
 39    return layout

 40
 41

[docs]
 42@pydantic.validate_call(validate_return=True)
 43def define_gui_window(
 44    gui_layout: list[list[pydantic.InstanceOf[PySimpleGUI.Element]]],
 45) -> pydantic.InstanceOf[PySimpleGUI.Window]:
 46    """Create GUI with provided design.
 47
 48    Parameters
 49    ----------
 50    gui_layout : list[list[PySimpleGUI.Element]]
 51        design of the GUI
 52
 53    Returns
 54    -------
 55    PySimpleGUI.Window
 56        designed GUI
 57    """
 58    window = PySimpleGUI.Window("GUI Calculator", layout=gui_layout)
 59
 60    return window

 61
 62

[docs]
 63@pydantic.validate_call(validate_return=True)
 64def orchestrate_interaction(gui_window: pydantic.InstanceOf[PySimpleGUI.Window]) -> None:
 65    """Control flow of the GUI.
 66
 67    Parameters
 68    ----------
 69    gui_window : PySimpleGUI.Window
 70        designed GUI
 71    """
 72    while True:
 73        gui_event, gui_elements = gui_window.read()  # pyright: ignore [reportGeneralTypeIssues]
 74
 75        if PySimpleGUI.WINDOW_CLOSED or gui_event == CLOSE_BUTTON:
 76            break
 77
 78        try:
 79            operation_result = package_name_to_import_with.calculate_results(
 80                gui_elements[FIRST_NUMBER_INPUT],
 81                gui_elements[OPERATOR_INPUT],
 82                gui_elements[SECOND_NUMBER_INPUT],
 83            )
 84        except Exception as error:  # noqa: BLE001  # pylint: disable=broad-except
 85            gui_window[OPERATION_RESULT].update(value=str(error))
 86        else:
 87            gui_window[OPERATION_RESULT].update(value=operation_result)

 88
 89

[docs]
 90@pydantic.validate_call(validate_return=True)
 91def gui_calculator() -> None:
 92    """Calculate arithmetic expressions."""
 93    gui_layout = define_gui_layout()
 94    gui_window = define_gui_window(gui_layout)
 95
 96    try:
 97        orchestrate_interaction(gui_window)
 98    finally:
 99        gui_window.close()

100
101
102if __name__ == "__main__":
103    gui_calculator()