Source code for module_that_can_invoke_gui_from_cli

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

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

 39
 40

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

 60
 61

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

 87
 88

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

 99
100
101if __name__ == "__main__":
102    gui_calculator()