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Title: Fix: Prevent Cursor blitting from erasing overlapping axes (#25670) by MohitPal2005 · Pull Request #31368 · matplotlib/matplotlib · GitHub

Open Graph Title: Fix: Prevent Cursor blitting from erasing overlapping axes (#25670) by MohitPal2005 · Pull Request #31368 · matplotlib/matplotlib

X Title: Fix: Prevent Cursor blitting from erasing overlapping axes (#25670) by MohitPal2005 · Pull Request #31368 · matplotlib/matplotlib

Description: Fixes #25670. Bug: When Cursor is used with useblit=True, its background restore operation blindly overwrites any overlapping widgets (like CheckButtons residing in a different axes on the same figure), causing them to flicker or disappear. Fix: Updated Cursor.onmove to explicitly detect if any other axes overlap with the cursor's main axes bounding box. If an overlap is detected, the overlapping axes are explicitly redrawn before blitting to the canvas, preserving their state. This serves as a localized fix for widget interaction prior to a larger architectural overlay manager.

Open Graph Description: Fixes #25670. Bug: When Cursor is used with useblit=True, its background restore operation blindly overwrites any overlapping widgets (like CheckButtons residing in a different axes on the same fig...

X Description: Fixes #25670. Bug: When Cursor is used with useblit=True, its background restore operation blindly overwrites any overlapping widgets (like CheckButtons residing in a different axes on the same fig...

Opengraph URL: https://github.com/matplotlib/matplotlib/pull/31368

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Fix: Prevent Cursor blitting from erasing overlapping axes (#25670) https://github.com/matplotlib/matplotlib/pull/31368/files#top
Show all changes 6 commits https://github.com/matplotlib/matplotlib/pull/31368/files
9faecaf Fix: Prevent Cursor blitting from erasing overlapping axes MohitPal2005 Mar 24, 2026 https://github.com/matplotlib/matplotlib/pull/31368/commits/9faecaf9cc21452ca7167825ee5a4b397ce2af62
b39eaf1 Fix styling: remove trailing whitespace and shorten comment MohitPal2005 Mar 24, 2026 https://github.com/matplotlib/matplotlib/pull/31368/commits/b39eaf19e6d76c0fe1e82a184de98ce338545a10
d1f0a33 MAINT: explicitly mark Cursor blitting on overlapping axes as unsuppo… MohitPal2005 Mar 29, 2026 https://github.com/matplotlib/matplotlib/pull/31368/commits/d1f0a3342b5eeef2747f36f6a4a8febd645c22f2
1a29cbc style: fix ruff line length limit in widgets.py MohitPal2005 Mar 29, 2026 https://github.com/matplotlib/matplotlib/pull/31368/commits/1a29cbcb03aebf758661475019d8504b99a7bfd4
1098b05 test: add coverage for cursor overlapping axes warning MohitPal2005 Mar 30, 2026 https://github.com/matplotlib/matplotlib/pull/31368/commits/1098b0564a4e75d4d425639639982e59ceeb126e
f2050ae chore: trigger CI to clear Windows timeout flake MohitPal2005 Mar 30, 2026 https://github.com/matplotlib/matplotlib/pull/31368/commits/f2050aefd22fe82247ae90a631587dcd384e219d
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