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Nioce colored blocks to show which bits of work are being executed

This commit is contained in:
MikeTheWatchGuy 2019-05-19 10:33:58 -04:00
parent 0053c02f27
commit e670157f71
1 changed files with 12 additions and 5 deletions
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17
DemoPrograms/Demo_Threaded_Work.py
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@ -48,7 +48,7 @@ def long_function_wrapper(work_id, gui_queue):
# at this point, the thread exits
return
############################# Begin GUI code #############################
def the_gui():
gui_queue = queue.Queue() # queue used to communicate between the gui and long-running code
@ -57,7 +57,8 @@ def the_gui():
[sg.Text('Click Go to start a long-running function call')],
[sg.Text('', size=(25, 1), key='_OUTPUT_')],
[sg.Text('', size=(25, 1), key='_OUTPUT2_')],
[sg.Button('Go'), sg.Button('Popup'), sg.Button('Exit')], ]
[sg.Graph((10,10),(0,0),(10,10),background_color='black',key=i) for i in range(20)],
[sg.Button('Go'), sg.Button('Stop'), sg.Button('Popup'), sg.Button('Exit')], ]
window = sg.Window('Multithreaded Window').Layout(layout)
# --------------------- EVENT LOOP ---------------------
@ -68,10 +69,14 @@ def the_gui():
break
if event == 'Go': # clicking "Go" starts a long running work item by starting thread
window.Element('_OUTPUT_').Update('Starting long work %s'%work_id)
window.Element(work_id).Update(background_color='red')
# LOCATION 2
# STARTING long run by starting a thread
threading.Thread(target=long_function_wrapper, args=(work_id, gui_queue,), daemon=True).start()
work_id += 1
thread_id = threading.Thread(target=long_function_wrapper, args=(work_id, gui_queue,), daemon=True)
thread_id.start()
work_id = work_id+1 if work_id < 19 else 0
elif event == 'Stop':
thread_id.exit
# --------------- Read next message coming in from threads ---------------
try:
message = gui_queue.get_nowait() # see if something has been posted to Queue
@ -83,8 +88,10 @@ def the_gui():
# LOCATION 3
# this is the place you would execute code at ENDING of long running task
# You can check the completed_work_id variable to see exactly which long-running function completed
completed_work_id = message[:message.index(' :::')]
completed_work_id = int(message[:message.index(' :::')])
window.Element('_OUTPUT2_').Update('Complete Work ID "{}"'.format(completed_work_id))
window.Element(completed_work_id).Update(background_color='green')
if event == 'Popup':
sg.Popup('This is a popup showing that the GUI is running')
# if user exits the window, then close the window and exit the GUI func