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show progress dialog for post-progress plugin?


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Posted · show progress dialog for post-progress plugin?

i wrote a little plugin doing changes on the gcode

as it sometimes needs several seconds I tried to show a progress-bar but UI is blocking - so I switched to a sub-thread to do the work but it's still the same
if I don't wait for the thread to finish the progress-bar get's shown and runs smooth
but I need to wait for the thread? or can I tell cura to wait for the thread to be finished?
(~~ i don't know much about python ~~ but I did some research ~~)

import threading
from time import sleep
class SamplePlugin(Extension):
    def __init__(self):

    def _processGCode(self, output_device):
        self._message = Message(catalog.i18nc("@info:progress", "processing gcode changes"), 0, False, -1)
        self._message.setTitle("Sample Plugin")

        x = threading.Thread(name="SamplePluginThread", target=self.threaded_processGcode, daemon=True)

        Logger.log("d", "start thread")

	*** how to wait without block*** ??
	x.join() is blocking UI

	wait-loop is blocking UI also
        while x.is_alive():

	*** how to wait without block*** ??

        Logger.log("d", "fan control thread finished")

        #self._message = None

    def threaded_processGcode(self):
        for line in lines:                
            if line.startswith(";LAYER:"): 
                iLayerNr = int(re.split(':| |;|#|\n',line)[2])
                if self._message:
                     self._message.setProgress(iLine * 100 / len(newLines))


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