New Demo Program using new Window.timer_stop and Window.timer_stop

DemoPrograms/Demo_Desktop_Widget_Timer_Using_Window_Timers.py

@@ -0,0 +1,74 @@
+#!/usr/bin/env python
+import PySimpleGUI as sg
+import time
+
+"""
+    Demo Program - Timer Desktop Widget using Window.timer_start and Window.timer_stop
+
+    This is a re-implementation of the original timer desktop widget that used window.read timeouts as
+    the means of getting timer events.
+
+    This program uses the new Window.timer_start to get timer events.  It is simpler because:
+        There is only 1 call to window.read and it's in the standard location in the event loop
+        The timer pause/run button uses the timer_start and timer_stop calls - perhaps more intuitive
+
+    Note that this Demo Program requires PySimpleGUI 4.60.4.132 and greater
+
+    Copyright 2022 PySimpleGUI
+"""
+
+
+def time_as_int():
+    return int(round(time.time() * 100))
+
+
+# ----------------  Create Form  ----------------
+sg.theme('Black')
+
+layout = [[sg.Text('')],
+          [sg.Text('', size=(8, 2), font=('Helvetica', 20),
+                justification='center', key='text')],
+          [sg.Button('Pause', key='-RUN-PAUSE-', button_color=('white', '#001480')),
+           sg.Button('Reset', button_color=('white', '#007339'), key='-RESET-'),
+           sg.Exit(button_color=('white', 'firebrick4'), key='Exit')]]
+
+window = sg.Window('Running Timer', layout,
+                   no_titlebar=True,
+                   auto_size_buttons=False,
+                   keep_on_top=True,
+                   grab_anywhere=True,
+                   element_padding=(0, 0),
+                   finalize=True,
+                   element_justification='c',
+                   right_click_menu=sg.MENU_RIGHT_CLICK_EDITME_EXIT)
+
+current_time, paused_time, paused = 0, 0, False
+start_time = time_as_int()
+timer_id = window.timer_start(10)
+
+while True:
+    event, values = window.read()
+    if event in (sg.WIN_CLOSED, 'Exit'):        # ALWAYS give a way out of program
+        break
+    # --------- Handle events --------
+    if event == '-RUN-PAUSE-':
+        paused = not paused
+        if paused:
+            window.timer_stop(timer_id)
+            paused_time = time_as_int()
+        else:
+            timer_id = window.timer_start(10)
+            start_time = start_time + time_as_int() - paused_time
+        window['-RUN-PAUSE-'].update('Run' if paused else 'Pause')
+    elif event == sg.EVENT_TIMER:
+        current_time = time_as_int() - start_time
+    if event == '-RESET-':
+        current_time = 0
+        start_time = paused_time = time_as_int()
+    elif event == 'Edit Me':
+        sg.execute_editor(__file__)
+    # --------- Display timer_id in window --------
+    window['text'].update('{:02d}:{:02d}.{:02d}'.format((current_time // 100) // 60,
+                                                        (current_time // 100) % 60,
+                                                        current_time % 100))
+window.close()