55 lines
1.6 KiB
Python
55 lines
1.6 KiB
Python
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"""
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When creating a new PySimpleGUI program from scratch, start here.
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These are the accepted design patterns that cover the two primary use cases
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1. A "One Shot" window
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2. A persistent window that stays open after button clicks (uses an event loop)
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3. A persistent window that need to perform Update of an element before the window.read
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"""
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# ---------------------------------#
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# DESIGN PATTERN 1 - Simple Window #
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# ---------------------------------#
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import PySimpleGUI as sg
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layout = [[ sg.Text('My Oneshot') ],
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[ sg.Button('OK') ]]
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window = sg.Window('My Oneshot', layout)
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event, values = window.read()
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window.close()
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# -------------------------------------#
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# DESIGN PATTERN 2 - Persistent Window #
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# -------------------------------------#
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import PySimpleGUI as sg
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layout = [[ sg.Text('My layout') ],
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[ sg.Button('OK'), sg.Button('Cancel') ]]
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window = sg.Window('Design Pattern 2', layout)
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while True: # Event Loop
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event, values = window.read()
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if event in (None, 'Cancel'):
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break
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window.close()
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# ------------------------------------------------------------------#
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# DESIGN PATTERN 3 - Persistent Window with "early update" required #
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# ------------------------------------------------------------------#
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import PySimpleGUI as sg
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layout = [[ sg.Text('My layout', key='-TEXT-KEY-') ],
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[ sg.Button('OK'), sg.Button('Cancel') ]]
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window = sg.Window('Design Pattern 3', layout, finalize=True)
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window['-TEXT-KEY-'].Update('NEW Text') # Change the text field. Finalize allows us to do this
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while True: # Event Loop
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event, values = window.read()
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if event in (None, 'Cancel'):
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break
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window.close()
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