diff --git a/Demo_NonBlocking_Form.py b/Demo_NonBlocking_Form.py index 8ea24f6e..6121e725 100644 --- a/Demo_NonBlocking_Form.py +++ b/Demo_NonBlocking_Form.py @@ -42,6 +42,53 @@ def StatusOutputExample(): form.CloseNonBlockingForm() +def RemoteControlExample(): + # Make a form, but don't use context manager + form = sg.FlexForm('Running Timer', auto_size_text=True) + # Create a text element that will be updated with status information on the GUI itself + output_element = sg.Text('', size=(8, 2), font=('Helvetica', 20), justification='center') + + + form_rows = [[sg.Text('Robotics Remote Control')], + [output_element], + [sg.T(' '*10), sg.RealtimeButton('Forward')], + [ sg.RealtimeButton('Left'), sg.T(' '*15), sg.RealtimeButton('Right')], + [sg.T(' '*10), sg.RealtimeButton('Reverse')], + [sg.T('')], + [sg.Quit()] + ] + + 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 + i=0 + while (True): + # This is the code that reads and updates your window + output_element.Update('{:02d}:{:02d}.{:02d}'.format((i // 100) // 60, (i // 100) % 60, i % 100)) + button, values = form.ReadNonBlocking() + if button is not None: + print(button) + if button == 'Quit' or values is None: + break + if button == 'LED On': + print('Turning on the LED') + elif button == 'LED Off': + print('Turning off the LED') + + i += 1 + # Your code begins here + time.sleep(.01) + + # Broke out of main loop. Close the window. + form.CloseNonBlockingForm() + + + # This design pattern follows the uses a context manager to better control the resources # It may not be realistic to use a context manager within an embedded (Pi) environment @@ -65,6 +112,7 @@ def StatusOutputExample_context_manager(): form.CloseNonBlockingForm() def main(): + RemoteControlExample() StatusOutputExample() sg.MsgBox('End of non-blocking demonstration') # StatusOutputExample_context_manager()