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FIX: Update macosx animation handling #22175

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Merged
merged 1 commit into from
Mar 5, 2022
Merged

FIX: Update macosx animation handling #22175

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9 changes: 8 additions & 1 deletion lib/matplotlib/animation.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1199,9 +1199,16 @@ def _setup_blit(self):
# axes
self._blit_cache = dict()
self._drawn_artists = []
# _post_draw needs to be called first to initialize the renderer
self._post_draw(None, self._blit)
# Then we need to clear the Frame for the initial draw
# This is typically handled in _on_resize because QT and Tk
# emit a resize event on launch, but the macosx backend does not,
# thus we force it here for everyone for consistency
self._init_draw()
# Connect to future resize events
self._resize_id = self._fig.canvas.mpl_connect('resize_event',
self._on_resize)
self._post_draw(None, self._blit)

def _on_resize(self, event):
# On resize, we need to disable the resize event handling so we don't
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2 changes: 2 additions & 0 deletions src/_macosx.m
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Expand Up @@ -1329,6 +1329,8 @@ - (void)updateDevicePixelRatio:(double)scale
goto exit;
}
if (PyObject_IsTrue(change)) {
// Notify that there was a resize_event that took place
gil_call_method(canvas, "resize_event");
[self setNeedsDisplay: YES];
}

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