Replaced one multi-window design pattern with new read_all_windows
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PySimpleGUI
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@ -1,54 +1,43 @@
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import PySimpleGUI as sg
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"""
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Demo - Running 2 windows with both being active at the same time
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Three important things to note about this design patter:
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1. The layout for window 2 is inside of the while loop, just before the call to window2=sg.Window
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2. The read calls have timeout values of 100 and 0. You can change the 100 to whatever interval you wish
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but must keep the second window's timeout at 0
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3. There is a safeguard to stop from launching multiple copies of window2. Only 1 window2 is visible at a time
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Demo - 2 simultaneous windows using read_all_window
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Window 1 launches window 2
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BOTH remain active in parallel
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Both windows have buttons to launch popups. The popups are "modal" and thus no other windows will be active
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Copyright 2020 PySimpleGUI.org
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"""
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sg.theme('Dark Blue 3')
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# Window 1 layout
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layout = [
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[sg.Text('This is the FIRST WINDOW'), sg.Text(' ', key='-OUTPUT-')],
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def make_win1():
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layout = [[sg.Text('This is the FIRST WINDOW'), sg.Text(' ', k='-OUTPUT-')],
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[sg.Text()],
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[sg.Button('Launch 2nd Window'), sg.Button('Popup'), sg.Button('Exit')]
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]
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[sg.Button('Launch 2nd Window'), sg.Button('Popup'), sg.Button('Exit')]]
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return sg.Window('Window Title', layout, location=(800,600), finalize=True)
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def make_win2():
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layout = [[sg.Text('The second window')],
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[sg.Input(key='-IN-')],
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[sg.Text(size=(25,1), k='-OUTPUT-')],
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[sg.Button('Show'), sg.Button('Popup'), sg.Button('Exit')]]
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return sg.Window('Second Window', layout, finalize=True)
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window1, window2 = make_win1(), None # start off with 1 window open
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window = sg.Window('Window Title', layout, location=(800,600))
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win2_active = False
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i=0
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while True: # Event Loop
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event, values = window.read(timeout=100)
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if event != sg.TIMEOUT_KEY:
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print(i, event, values)
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if event in (sg.WIN_CLOSED, 'Exit'):
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window, event, values = sg.read_all_windows()
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if event == sg.WIN_CLOSED or event == 'Exit':
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window.close()
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if window == window2: # if closing win 2, mark as closed
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window2 = None
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elif window == window1: # if closing win 1, exit program
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break
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elif event == 'Popup':
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sg.popup('This is a BLOCKING popup','all windows remain inactive while popup active')
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i+=1
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if event == 'Launch 2nd Window' and not win2_active: # only run if not already showing a window2
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win2_active = True
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# window 2 layout - note - must be "new" every time a window is created
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layout2 = [
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[sg.Text('The second window')],
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[sg.Input(key='-IN-')],
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[sg.Button('Show'), sg.Button('Exit')]
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]
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window2 = sg.Window('Second Window', layout2)
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# Read window 2's events. Must use timeout of 0
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if win2_active:
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# print("reading 2")
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event, values = window2.read(timeout=100)
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# print("win2 ", event)
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if event != sg.TIMEOUT_KEY:
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print("win2 ", event)
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if event == 'Exit' or event == sg.WIN_CLOSED:
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# print("Closing window 2", event)
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win2_active = False
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window2.close()
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if event == 'Show':
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sg.popup('You entered ', values['-IN-'])
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elif event == 'Launch 2nd Window' and not window2:
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window2 = make_win2()
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elif event == 'Show':
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window['-OUTPUT-'].update(f'You enetered {values["-IN-"]}')
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window.close()
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@ -0,0 +1,55 @@
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import PySimpleGUI as sg
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"""
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Demo - Running 2 windows with both being active at the same time
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Three important things to note about this design patter:
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1. The layout for window 2 is inside of the while loop, just before the call to window2=sg.Window
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2. The read calls have timeout values of 100 and 0. You can change the 100 to whatever interval you wish
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but must keep the second window's timeout at 0
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3. There is a safeguard to stop from launching multiple copies of window2. Only 1 window2 is visible at a time
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"""
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sg.theme('Dark Blue 3')
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# Window 1 layout
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layout = [
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[sg.Text('This is the FIRST WINDOW'), sg.Text(' ', key='-OUTPUT-')],
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[sg.Text()],
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[sg.Button('Launch 2nd Window'), sg.Button('Popup'), sg.Button('Exit')]
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]
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window = sg.Window('Window Title', layout, location=(800,600))
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win2_active = False
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i=0
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while True: # Event Loop
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event, values = window.read(timeout=100)
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if event != sg.TIMEOUT_KEY:
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print(i, event, values)
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if event in (sg.WIN_CLOSED, 'Exit'):
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break
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elif event == 'Popup':
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sg.popup('This is a BLOCKING popup','all windows remain inactive while popup active')
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i+=1
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if event == 'Launch 2nd Window' and not win2_active: # only run if not already showing a window2
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win2_active = True
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# window 2 layout - note - must be "new" every time a window is created
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layout2 = [
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[sg.Text('The second window')],
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[sg.Input(key='-IN-')],
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[sg.Button('Show'), sg.Button('Exit')]
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]
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window2 = sg.Window('Second Window', layout2)
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# Read window 2's events. Must use timeout of 0
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if win2_active:
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# print("reading 2")
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event, values = window2.read(timeout=100)
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# print("win2 ", event)
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if event != sg.TIMEOUT_KEY:
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print("win2 ", event)
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if event == 'Exit' or event == sg.WIN_CLOSED:
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# print("Closing window 2", event)
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win2_active = False
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window2.close()
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if event == 'Show':
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sg.popup('You entered ', values['-IN-'])
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window.close()
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