Removed old Pi Robotics demo. Added Demo_Buttons_Realtime
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PySimpleGUI
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#!/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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@ -1,100 +0,0 @@
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#!/usr/bin/env python
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import sys
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import PySimpleGUI as sg
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# Robotics design pattern
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# Uses Realtime Buttons to simulate the controls for a robot
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# Rather than sending a single click when a button is clicked, Realtime Buttons
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# send button presses continuously while the button is pressed down.
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# Two examples, one using fancy graphics, one plain.
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def RemoteControlExample():
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# Make a form, but don't use context manager
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sg.set_options(element_padding=(0,0))
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back = '#eeeeee'
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sg.set_options(border_width=0,
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button_color=('black', back),
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background_color=back,
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element_background_color=back,
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text_element_background_color=back)
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mypad = ((50,0),0)
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layout = [[sg.Text('Robotics Remote Control')],
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[sg.Text('', justification='center', size=(19,1), key='status')],
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[ sg.RealtimeButton('', key='Forward', pad=mypad)],
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[ sg.RealtimeButton('', key='Left', ),
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sg.RealtimeButton('', key='Right', pad=mypad)],
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[ sg.RealtimeButton('', key='Reverse', pad=mypad)],
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[sg.Text('')],
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[sg.Quit(button_color=('black', 'orange'))]]
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window = sg.Window('Robotics Remote Control', layout, grab_anywhere=False)
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#
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# Some place later in your code...
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# You need to perform a ReadNonBlocking on your form every now and then or
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# else it won't refresh.
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#
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# your program's main loop
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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=0, timeout_key='timeout')
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if event is not None:
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window['status'].update(event)
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elif event != 'timeout':
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window['status'].update('')
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# if user clicked quit button OR closed the form using the X, then break out of loop
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if event == 'Quit' or values is None:
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break
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window.close()
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def RemoteControlExample_NoGraphics():
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# Make a form, but don't use context manager
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layout = [[sg.Text('Robotics Remote Control', justification='center')],
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[sg.Text('', justification='center', size=(19,1), key='status')],
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[sg.Text(' '*8), sg.RealtimeButton('Forward')],
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[ sg.RealtimeButton('Left'), sg.Text(' '), sg.RealtimeButton('Right')],
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[sg.Text(' '*8), sg.RealtimeButton('Reverse')],
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[sg.Text('')],
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[sg.Quit(button_color=('black', 'orange'))]]
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# Display form to user
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window = sg.Window('Robotics Remote Control', layout, grab_anywhere=False)
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#
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# Some place later in your code...
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# You need to perform a Read on your form every now and then or
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# else it won't refresh.
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# Notice how the timeout is 100ms. You don't have to use a timeout = 0 for all of your hardware
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# applications. Leave some CPU for other threads or for your GUI. The longer you are in the GUI, the more
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# responsive the GUI itself will be Match your timeout with your hardware's capabilities
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#
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# your program's main loop
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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, timeout_key='timeout')
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# print(event, values)
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if event != 'timeout':
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window['status'].update(event)
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else:
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window['status'].update('')
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# if user clicked quit button OR closed the form using the X, then break out of loop
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if event in (sg.WIN_CLOSED, 'Quit'):
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break
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window.close()
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# ------------------------------------- main -------------------------------------
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def main():
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RemoteControlExample_NoGraphics()
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# Uncomment to get the fancy graphics version. Be sure and download the button images!
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RemoteControlExample()
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# sg.popup('End of non-blocking demonstration')
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if __name__ == '__main__':
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main()
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