From 851177f47e7e81e2b0e5016354a687ad65353cd6 Mon Sep 17 00:00:00 2001
From: Ruth Comer <10599679+rcomer@users.noreply.github.com>
Date: Thu, 11 Jul 2024 20:30:42 +0100
Subject: [PATCH] Subfigures become stale when their artists are stale
---
lib/matplotlib/figure.py | 4 ++--
lib/matplotlib/tests/test_figure.py | 3 +++
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/lib/matplotlib/figure.py b/lib/matplotlib/figure.py
index 51bac3455a28..41d4b6078223 100644
--- a/lib/matplotlib/figure.py
+++ b/lib/matplotlib/figure.py
@@ -64,8 +64,8 @@
def _stale_figure_callback(self, val):
- if self.figure:
- self.figure.stale = val
+ if (fig := self.get_figure(root=False)) is not None:
+ fig.stale = val
class _AxesStack:
diff --git a/lib/matplotlib/tests/test_figure.py b/lib/matplotlib/tests/test_figure.py
index 4e73d4091200..99045e773d02 100644
--- a/lib/matplotlib/tests/test_figure.py
+++ b/lib/matplotlib/tests/test_figure.py
@@ -1774,10 +1774,13 @@ def test_subfigure_stale_propagation():
sfig2 = sfig1.subfigures()
assert fig.stale
+ assert sfig1.stale
fig.draw_without_rendering()
assert not fig.stale
+ assert not sfig1.stale
assert not sfig2.stale
sfig2.stale = True
+ assert sfig1.stale
assert fig.stale
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