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Backport PR #29842 on branch v3.10.x (Don't drag draggables on scroll events) #29858

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Merged
merged 1 commit into from
Apr 2, 2025
Merged

Backport PR #29842 on branch v3.10.x (Don't drag draggables on scroll events) #29858

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7 changes: 6 additions & 1 deletion lib/matplotlib/offsetbox.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1488,7 +1488,7 @@ def finalize_offset(self):
def __init__(self, ref_artist, use_blit=False):
self.ref_artist = ref_artist
if not ref_artist.pickable():
ref_artist.set_picker(True)
ref_artist.set_picker(self._picker)
self.got_artist = False
self._use_blit = use_blit and self.canvas.supports_blit
callbacks = self.canvas.callbacks
Expand All @@ -1502,6 +1502,11 @@ def __init__(self, ref_artist, use_blit=False):
]
]

@staticmethod
def _picker(artist, mouseevent):
# A custom picker to prevent dragging on mouse scroll events
return (artist.contains(mouseevent) and mouseevent.name != "scroll_event"), {}

# A property, not an attribute, to maintain picklability.
canvas = property(lambda self: self.ref_artist.get_figure(root=True).canvas)
cids = property(lambda self: [
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