PySimpleGUI/DemoPrograms/Demo_Layout_Vertical_Center...

43 lines
1.5 KiB
Python

import PySimpleGUI as sg
"""
Center a column in a window
Solves a very specific kind of layout.
If you want to have something centered in a Window, this is a good way to do it
The "trick" here is:
* the first row of the layout has a Text element that expands vertically
* the row with the Column has a text element that expands horizontally
This expanding Text element is what will cause the Column element to be centered
Copyright 2020 PySimpleGUI.org
"""
def main():
column_to_be_centered = [ [sg.Text('My Window')],
[sg.Input(key='-IN-')],
[sg.Text(size=(12,1), key='-OUT-')],
[sg.Button('Go'), sg.Button('Exit')] ]
layout = [[sg.Text(key='-EXPAND-', font='ANY 1', pad=(0, 0))], # the thing that expands from top
[sg.Text('', pad=(0,0),key='-EXPAND2-'), # the thing that expands from left
sg.Column(column_to_be_centered, vertical_alignment='center', justification='center', k='-C-')]]
window = sg.Window('Window Title', layout, resizable=True,finalize=True)
window['-C-'].expand(True, True, True)
window['-EXPAND-'].expand(True, True, True)
window['-EXPAND2-'].expand(True, False, True)
while True: # Event Loop
event, values = window.read()
print(event, values)
if event == sg.WIN_CLOSED or event == 'Exit':
break
if event == 'Go':
window['-OUT-'].update(values['-IN-'])
window.close()
if __name__ == '__main__':
main()