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Pi Robotics Demo / Design Pattern

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MikeTheWatchGuy committed Jul 31, 2018
1 parent b41f65d commit 3066a1c099735ef9b36106ffc6260ce5179af94d
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import PySimpleGUI as sg
# Robotics design pattern
# Uses Realtime Buttons to simulate the controls for a robot
# Rather than sending a single click when a button is clicked, Realtime Buttons
# send button presses continuously while the button is pressed down.
# Two examples, one using fancy graphics, one plain.
def RemoteControlExample():
# Make a form, but don't use context manager
back ='#eeeeee'
image_forward = 'ButtonGraphics/RobotForward.png'
image_backward = 'ButtonGraphics/RobotBack.png'
image_left = 'ButtonGraphics/RobotLeft.png'
image_right = 'ButtonGraphics/RobotRight.png'
sg.SetOptions(border_width=0, button_color=('black', back), background_color=back, element_background_color=back, text_element_background_color=back)
form = sg.FlexForm('Robotics Remote Control', auto_size_text=True)
status_display_elem = sg.T('', justification='center', size=(19,1))
form_rows = [[sg.Text('Robotics Remote Control')],
[status_display_elem],
[sg.T(' '*10), sg.RealtimeButton('Forward', image_filename=image_forward)],
[ sg.RealtimeButton('Left', image_filename=image_left), sg.T(' '), sg.RealtimeButton('Right', image_filename=image_right)],
[sg.T(' '*10), sg.RealtimeButton('Reverse', image_filename=image_backward)],
[sg.T('')],
[sg.Quit(button_color=('black', 'orange'))]
]
form.LayoutAndRead(form_rows, non_blocking=True)
#
# Some place later in your code...
# You need to perform a ReadNonBlocking on your form every now and then or
# else it won't refresh.
#
# your program's main loop
while (True):
# This is the code that reads and updates your window
button, values = form.ReadNonBlocking()
if button is not None:
status_display_elem.Update(button)
else:
status_display_elem.Update('')
# if user clicked quit button OR closed the form using the X, then break out of loop
if button == 'Quit' or values is None:
break
form.CloseNonBlockingForm()
def RemoteControlExample_NoGraphics():
# Make a form, but don't use context manager
form = sg.FlexForm('Robotics Remote Control', auto_size_text=True)
status_display_elem = sg.T('', justification='center', size=(19,1))
form_rows = [[sg.Text('Robotics Remote Control')],
[status_display_elem],
[sg.T(' '*10), sg.RealtimeButton('Forward')],
[ sg.RealtimeButton('Left'), sg.T(' '), sg.RealtimeButton('Right')],
[sg.T(' '*10), sg.RealtimeButton('Reverse')],
[sg.T('')],
[sg.Quit(button_color=('black', 'orange'))]
]
# Display form to user
form.LayoutAndRead(form_rows, non_blocking=True)
#
# Some place later in your code...
# You need to perform a ReadNonBlocking on your form every now and then or
# else it won't refresh.
#
# your program's main loop
while (True):
# This is the code that reads and updates your window
button, values = form.ReadNonBlocking()
if button is not None:
status_display_elem.Update(button)
else:
status_display_elem.Update('')
# if user clicked quit button OR closed the form using the X, then break out of loop
if button == 'Quit' or values is None:
break
form.CloseNonBlockingForm()
# ------------------------------------- main -------------------------------------
def main():
RemoteControlExample_NoGraphics()
# Uncomment to get the fancy graphics version. Be sure and download the button images!
# RemoteControlExample()
sg.MsgBox('End of non-blocking demonstration')
if __name__ == '__main__':
main()

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