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""" |
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* PyDMXControl: A Python 3 module to control DMX via Python. Featuring fixture profiles and working with uDMX. |
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* <https://github.com/MattIPv4/PyDMXControl/> |
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* Copyright (C) 2018 Matt Cowley (MattIPv4) ([email protected]) |
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""" |
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from collections import OrderedDict |
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from threading import Thread |
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from time import sleep, time |
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from typing import Dict, Any |
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from ._TimedEvent import TimedEvent |
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from ..exceptions import EventAlreadyExistsException |
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from ... import DMXMINWAIT |
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class TimedEvents: |
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def __init__(self, debug_messages: bool = False): |
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self.__events = {} |
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self.__started = None |
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self.__messages = debug_messages |
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self.__run_cbs = [] |
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self.__stop_cbs = [] |
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def __run(self, start_millis): |
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# Don't allow to run more that once simultaneously |
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if self.__started is not None: |
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return |
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# Set starting params |
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self.__started = (time() * 1000.0) - start_millis |
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events_left = OrderedDict(sorted(self.__events.items())) |
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# Skip events in the past |
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for timestamp, event in events_left.copy().items(): |
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if timestamp < start_millis: |
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del events_left[timestamp] |
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# Keep looping until last event timestamp |
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end = self.__started + max(self.__events.keys()) + 1000 |
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while end > time() * 1000.0 and self.__started is not None: |
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# Find all events to run |
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for timestamp, event in events_left.copy().items(): |
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# Look into the past so we don't ever miss any |
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if timestamp <= self.progress: |
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msg = event.run(self.__started) # Run |
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if self.__messages: # Debug if needed |
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print(msg) |
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del events_left[timestamp] # Remove - we're done with it |
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else: |
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# We're into the future |
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break |
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sleep(0.000001) |
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# Let everyone know we're done |
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self.__started = None |
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if self.__messages: |
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print("Timed events playback completed") |
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def run(self, start_millis: int = 0): |
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# Create the thread and run loop |
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thread = Thread(target=self.__run, args=[start_millis]) |
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thread.daemon = True |
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thread.start() |
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for cb in self.__run_cbs: |
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thread = Thread(target=cb) |
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thread.daemon = True |
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thread.start() |
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def stop(self): |
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self.__started = None |
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for cb in self.__stop_cbs: |
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thread = Thread(target=cb) |
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thread.daemon = True |
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thread.start() |
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for event in self.__events.values(): |
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event.reset_fired() |
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def toggle_debug_messages(self) -> bool: |
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self.__messages = not self.__messages |
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return self.__messages |
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def add_event(self, milliseconds_in: int, callback: callable, *args, name: str = ""): |
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milliseconds_in = int(milliseconds_in) |
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if milliseconds_in in self.__events: |
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raise EventAlreadyExistsException(milliseconds_in) |
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self.__events[milliseconds_in] = TimedEvent(milliseconds_in, callback, args, name) |
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def remove_event(self, milliseconds_in: int): |
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milliseconds_in = int(milliseconds_in) |
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if milliseconds_in in self.__events: |
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del self.__events[milliseconds_in] |
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def add_run_callback(self, callback: callable): |
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self.__run_cbs.append(callback) |
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def clear_run_callbacks(self): |
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self.__run_cbs = [] |
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def add_stop_callback(self, callback: callable): |
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self.__stop_cbs.append(callback) |
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def clear_stop_callbacks(self): |
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self.__stop_cbs = [] |
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@property |
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def progress(self) -> float: |
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if self.__started is None: |
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return 0 |
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return (time() * 1000.0) - self.__started |
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@property |
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def data(self) -> Dict[str, Any]: |
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return { |
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"events": {k: v.data for k, v in OrderedDict(sorted(self.__events.items())).items()}, |
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"progress": "{}ms".format("{:,.4f}".format(self.progress).rstrip("0").rstrip(".")), |
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"progress_raw": self.progress |
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} |
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def sleep_till_done(self): |
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# Hold until all events completed |
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while self.__running: |
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sleep(DMXMINWAIT) |
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MattIPv4 /
PyDMXControl
