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Major update of all demo programs to use new PEP8 bindings, etc

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PySimpleGUI 2019-10-23 16:10:03 -04:00
parent 3f7c87c562
commit 7f52778bcc
307 changed files with 19546 additions and 3297 deletions
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46
DemoPrograms/Demo_Threaded_Work.py
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@ -39,10 +39,13 @@ import PySimpleGUI as sg
# Put your long running code inside this "wrapper"
# NEVER make calls to PySimpleGUI from this thread (or any thread)!
# Create one of these functions for EVERY long-running call you want to make
def long_function_wrapper(work_id, gui_queue):
# LOCATION 1
# this is our "long running function call"
time.sleep(5) # sleep for a while as a simulation of a long-running computation
# sleep for a while as a simulation of a long-running computation
time.sleep(5)
# at the end of the work, before exiting, send a message back to the GUI indicating end
gui_queue.put('{} ::: done'.format(work_id))
# at this point, the thread exits
@ -51,28 +54,34 @@ def long_function_wrapper(work_id, gui_queue):
############################# Begin GUI code #############################
def the_gui():
gui_queue = queue.Queue() # queue used to communicate between the gui and long-running code
# queue used to communicate between the gui and long-running code
gui_queue = queue.Queue()
layout = [[sg.Text('Multithreaded Work Example')],
[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.Graph((10,10),(0,0),(10,10),background_color='black',key=i) for i in range(20)],
[sg.Text('', size=(25, 1), key='-OUTPUT-')],
[sg.Text('', size=(25, 1), key='-OUTPUT2-')],
[sg.Graph((10, 10), (0, 0), (10, 10),
background_color='black', key=i) for i in range(20)],
[sg.Button('Go'), sg.Button('Popup'), sg.Button('Exit')], ]
window = sg.Window('Multithreaded Window').Layout(layout)
window = sg.Window('Multithreaded Window', layout)
# --------------------- EVENT LOOP ---------------------
work_id = 0
while True:
event, values = window.Read(timeout=100) # wait for up to 100 ms for a GUI event
if event is None or event == 'Exit':
# wait for up to 100 ms for a GUI event
event, values = window.read(timeout=100)
if event in (None, 'Exit'):
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')
window['-OUTPUT-'].update('Starting long work %s' % work_id)
window[work_id].update(background_color='red')
# LOCATION 2
# STARTING long run by starting a thread
thread_id = threading.Thread(target=long_function_wrapper, args=(work_id, gui_queue,), daemon=True)
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
# --------------- Read next message coming in from threads ---------------
@ -85,18 +94,21 @@ def the_gui():
if message is not None:
# 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
# You can check the completed_work_id variable
# to see exactly which long-running function completed
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')
window['-OUTPUT2-'].update(
'Complete Work ID "{}"'.format(completed_work_id))
window[completed_work_id].update(background_color='green')
if event == 'Popup':
sg.Popup('This is a popup showing that the GUI is running')
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
window.Close()
window.close()
############################# Main #############################
if __name__ == '__main__':
the_gui()
print('Exiting Program')
print('Exiting Program')