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Expanded class wrapper demo to explain it's not a recommended design pattern. When initially released there was no explanation accompanying the code.

This commit is contained in:
PySimpleGUI 2023-05-29 10:19:32 -04:00
parent 955a7cba07
commit b62648aa23
1 changed files with 65 additions and 1 deletions
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66
DemoPrograms/Demo_Class_Wrapper.py
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@ -5,9 +5,37 @@ import PySimpleGUI as sg
Using a class to encapsulate PySimpleGUI Window creation & event loop Using a class to encapsulate PySimpleGUI Window creation & event loop
Copyright 2022 PySimpleGUI This is NOT a recommended design pattern. It mimics the object oriented design that many OO-based
GUI frameworks use, but there is no advantage to structuring you code in his manner. It adds
confusion, not clarity.
The class version is 18 lines of code. The plain version is 11 lines of code.
Two things about the class wrapper jump out as adding confusion:
1. Unneccessary fragmentation of the event loop - the button click code is pulled out of the loop entirely
2. "self" clutters the code without adding value
Copyright 2022, 2023 PySimpleGUI
""" """
'''
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'''
class SampleGUI(): class SampleGUI():
def __init__(self): def __init__(self):
@ -35,3 +63,39 @@ class SampleGUI():
my_gui = SampleGUI() my_gui = SampleGUI()
# run the event loop # run the event loop
my_gui.run() my_gui.run()
'''
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M MMMMM M .d8888b. 88d888b. 88d8b.d8b. .d8888b. 88
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M MMMMM M 88. .88 88 88 88 88 88. .88 88
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M MMMM' .M 88ooood8 88' `88 Y8ooooo. 88 88' `88 88' `88
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'''
layout = [ [sg.Text('My layout')],
[sg.Input(key='-IN-')],
[sg.Button('Go'), sg.Button('Exit')] ]
window = sg.Window('My new window', layout)
while True: # Event Loop
event, values = window.read()
if event in (sg.WIN_CLOSED, 'Exit'):
break
if event == 'Go':
sg.popup('Go button clicked', 'Input value:', values['-IN-'])
window.close()