PySimpleGUI/Demo_Timer.py

47 lines
1.5 KiB
Python

import PySimpleGUI as sg
import time
# form that doen't block
# good for applications with an loop that polls hardware
def Timer():
sg.ChangeLookAndFeel('TealMono')
# 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
# Create the rows
form_rows = [[sg.Text('Stopwatch')],
[sg.Text('', size=(8, 2), font=('Helvetica', 20), justification='center', key='text')],
[sg.ReadFormButton('Pause/Resume'), sg.ReadFormButton('Reset')]]
# Layout the rows of the form and perform a read. Indicate the form is non-blocking!
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
paused = False
while (True):
# This is the code that reads and updates your window
form.FindElement('text').Update('{:02d}:{:02d}.{:02d}'.format((i // 100) // 60, (i // 100) % 60, i % 100))
button, values = form.ReadNonBlocking()
if values is None:
break
if button is 'Reset':
i=0
elif button is 'Pause/Resume':
paused = not paused
if not paused:
i += 1
# Your code begins here
time.sleep(.01)
# Broke out of main loop. Close the window.
form.CloseNonBlockingForm()
Timer()