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47 lines
1.3 KiB
47 lines
1.3 KiB
import threading
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import time
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from openpilot.system.ui.lib.application import gui_app
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class Wrapper:
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def __init__(self, title: str, renderer_cls, *args):
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self._title = title
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self._renderer_class = renderer_cls
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self._args = args
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self._renderer = None
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self._stop_event = threading.Event()
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self._thread = threading.Thread(target=self._run, args=(self._stop_event,), daemon=True)
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self._thread.start()
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def _run(self, stop_event: threading.Event):
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gui_app.init_window(self._title)
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self._renderer = self._renderer_class(*self._args)
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try:
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for _ in gui_app.render():
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if stop_event.is_set():
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break
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self._renderer.render()
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finally:
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gui_app.close()
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def __enter__(self):
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return self
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def wait(self):
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"""wait for renderer to be initialized"""
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while self._renderer is None and self._thread is not None and self._thread.is_alive():
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time.sleep(0.01)
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def close(self):
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if self._thread is not None and self._thread.is_alive():
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self._stop_event.set()
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self._thread.join(timeout=2.0)
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if self._thread.is_alive():
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print(f"WARNING: failed to join {self._title} thread")
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self._thread = None
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def __del__(self):
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self.close()
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def __exit__(self, exc_type, exc_value, traceback):
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self.close()
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