55 lines
2.2 KiB
Python
55 lines
2.2 KiB
Python
#!/usr/bin/env python
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"""
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Demo - Realtime Buttons
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Realtime buttons provide a way for you to get a continuous stream of button
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events for as long as a button is held down.
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This demo is using a timeout to determine that a button has been released.
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If your application doesn't care when a button is released and only needs to know
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that it's being held down, then you can remove the timeout on the window read call.
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Note that your reaction latency will be the same as your timeout value. In this demo
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the timeout is 100, so there will be 100ms between releasing a button and your program detecting
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this has happened.
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Copyright 2021 PySimpleGUI
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"""
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import PySimpleGUI as sg
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def main():
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# The Quit button is being placed in the bottom right corner and the colors are inverted, just for fun
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layout = [[sg.Text('Robotics Remote Control')],
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[sg.Text('Hold Down Button To Move')],
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[sg.Text()],
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[sg.Text(' '),
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sg.RealtimeButton(sg.SYMBOL_UP, key='-FORWARD-')],
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[sg.RealtimeButton(sg.SYMBOL_LEFT, key='-LEFT-'),
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sg.Text(size=(10,1), key='-STATUS-', justification='c', pad=(0,0)),
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sg.RealtimeButton(sg.SYMBOL_RIGHT, key='-RIGHT-')],
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[sg.Text(' '),
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sg.RealtimeButton(sg.SYMBOL_DOWN, key='-DOWN-')],
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[sg.Text()],
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[sg.Column([[sg.Quit(button_color=(sg.theme_button_color()[1], sg.theme_button_color()[0]), focus=True)]], justification='r')]]
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window = sg.Window('Robotics Remote Control', layout)
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while True:
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# This is the code that reads and updates your window
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event, values = window.read(timeout=100)
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if event in (sg.WIN_CLOSED, 'Quit'):
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break
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if event != sg.TIMEOUT_EVENT:
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# if not a timeout event, then it's a button that's being held down
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window['-STATUS-'].update(event)
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else:
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# A timeout signals that all buttons have been released so clear the status display
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window['-STATUS-'].update('')
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window.close()
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if __name__ == '__main__':
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sg.theme('dark red')
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main()
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