PySimpleGUI/DemoPrograms/Demo_Window_Open_Multiple_T...

49 lines
1.6 KiB
Python

import PySimpleGUI as sg
"""
Demo Restart Window (sorta reopen)
Once a window is closed, you can't do anything with it. You can't read it. You can't "re-open" it.
The only choice is to recreate the window. It's important that you use a "Fresh Layout" every time.
You can't pass the same layout from one indow to another. You will get a popup error infomrning you
that you've attempted to resuse a layout.
The purpose of this demo is to show you the simple "make window" design pattern. It simply makes a
window using a layout that's defined in that function and returns the Window object. It's not a bad
way to encapsulate windows if your applcation is gettinga little larger than the typical small data
entry window.
Copyright 2020 PySimpleGUI.org
"""
def make_window():
"""
Defines a window layout and createws a indow using this layout. The newly made Window
is returned to the caller.
:return: Window that is created using the layout defined in the function
:rtype: Window
"""
layout = [[sg.Text('My Window')],
[sg.Input(key='-IN-'), sg.Text(size=(12, 1), key='-OUT-')],
[sg.Button('Go'), sg.Button('Exit')]]
return sg.Window('Window Title', layout)
def main():
window = make_window()
while True: # Event Loop
event, values = window.read()
print(event, values)
if event == sg.WIN_CLOSED or event == 'Exit':
window.close()
window = make_window()
elif event == 'Go':
window['-OUT-'].update(values['-IN-'])
if __name__ == '__main__':
main()