45 lines
1.8 KiB
Python
45 lines
1.8 KiB
Python
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import PySimpleGUI as sg
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"""
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Demo Combo File Chooser - with clearable history
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This is a design pattern that is very useful for programs that you run often that requires
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a filename be entered. You've got 4 options to use to get your filename with this pattern:
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1. Copy and paste a filename into the combo element
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2. Use the last used item which will be visible when you create the window
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3. Choose an item from the list of previously used items
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4. Browse for a new name
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To clear the list of previous entries, click the "Clear History" button.
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The history is stored in a json file using the PySimpleGUI User Settings APIs
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The code is as sparse as possible to enable easy integration into your code.
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Copyright 2021 PySimpleGUI
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"""
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layout = [[sg.Combo(sg.user_settings_get_entry('-filenames-', []), default_value=sg.user_settings_get_entry('-last filename-', ''), size=(50, 1), key='-FILENAME-'), sg.FileBrowse(), sg.B('Clear History')],
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[sg.Button('Ok'), sg.Button('Cancel')]]
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window = sg.Window('Filename Chooser With History', layout)
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while True:
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event, values = window.read()
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if event in (sg.WIN_CLOSED, 'Cancel'):
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break
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if event == 'Ok':
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# If OK, then need to add the filename to the list of files and also set as the last used filename
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sg.user_settings_set_entry('-filenames-', list(set(sg.user_settings_get_entry('-filenames-', []) + [values['-FILENAME-'], ])))
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sg.user_settings_set_entry('-last filename-', values['-FILENAME-'])
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break
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elif event == 'Clear History':
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sg.user_settings_set_entry('-filenames-', [])
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sg.user_settings_set_entry('-last filename-', '')
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window['-FILENAME-'].update(values=[], value='')
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window.close()
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