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[core] Add a property to ignore an attribute during the UID computation

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By default, an attribute that belongs to the UID group 0 is taken into
the node's UID computation independently from its value, as long as it is
enabled.

When such an attribute is added to a node's list of attributes, it
automatically invalidates all computations made for this node prior to
its addition.

This commits adds a new attribute property, "uidIgnoreValue". This property
determines whether the attribute must be taken into consideration during
the node's UID computation: if the value of the attribute is the same as
"uidIgnoreValue", then it should be ignored; otherwise, it should be taken
into account. By default, "uidIgnoreValue" is set to "None", meaning that
any attribute that may be considered during the UID computation will be
taken into account.

In the context of the internal attributes, "uidIgnoreValue" is set to empty
string, so the "invalidation" attribute will not automatically
invalidate 100% of the nodes from existing graphs until its value is set
to a non-empty string.
This commit is contained in:
Candice Bentéjac 2023-02-17 15:34:39 +01:00
parent 6381371e7d
commit 311ab9cb40
3 changed files with 16 additions and 6 deletions
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5
meshroom/core/attribute.py
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@ -143,6 +143,10 @@ class Attribute(BaseObject):
self._enabled = v
self.enabledChanged.emit()
def getUidIgnoreValue(self):
""" Value for which the attribute should be ignored during the UID computation. """
return self.attributeDesc.uidIgnoreValue
def _get_value(self):
if self.isLink:
return self.getLinkParam().value
@ -333,6 +337,7 @@ class Attribute(BaseObject):
node = Property(BaseObject, node.fget, constant=True)
enabledChanged = Signal()
enabled = Property(bool, getEnabled, setEnabled, notify=enabledChanged)
uidIgnoreValue = Property(Variant, getUidIgnoreValue, constant=True)
def raiseIfLink(func):