PlugLayout : Update activations when children added/removed

GafferHQ · Nov 26, 2024 · 724d182 · 724d182
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diff --git a/Changes.md b/Changes.md
@@ -1,7 +1,10 @@
 1.5.x.x (relative to 1.5.1.0)
 =======
 
+API
+---
 
+- PlugLayout : Activations may now depend on the presence of certain plugs, as they are now reevaluated when child plugs are added and removed.
 
 1.5.1.0 (relative to 1.5.0.1)
 =======

diff --git a/python/GafferUI/PlugLayout.py b/python/GafferUI/PlugLayout.py
@@ -483,6 +483,7 @@ def __childAddedOrRemoved( self, *unusedArgs ) :
 		# we do a lazy update so we can batch up several changes into one.
 		# upheaval is over.
 		self.__layoutDirty = True
+		self.__activationsDirty = True
 		self.__updateLazily()
 
 	def __plugMetadataChanged( self, plug, key, reason ) :