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#5388 Add a CAF-feature to get the ancestor of a type (but not this)

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This commit is contained in:
Gaute Lindkvist 2020-01-24 15:16:59 +01:00
parent d8dfca5bad
commit e4ffa5d7b9
1 changed files with 18 additions and 22 deletions
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40
Fwk/AppFwk/cafProjectDataModel/cafPdmCore/cafPdmObjectHandle.h
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@ -38,6 +38,11 @@ public:
template <typename T>
void firstAncestorOrThisOfType(T*& ancestor) const;
/// Traverses parents recursively and returns first parent of the requested type.
/// Does NOT check _this_ object
template <typename T>
void firstAncestorOfType(T*& ancestor) const;
/// Calls firstAncestorOrThisOfType, and asserts that a valid object is found
template <typename T>
void firstAncestorOrThisOfTypeAsserted(T*& ancestor) const;
@ -137,36 +142,27 @@ void PdmObjectHandle::firstAncestorOrThisOfType(T*& ancestor) const
return;
}
// Search parents for first type match
this->firstAncestorOfType<T>(ancestor);
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
template <typename T>
void PdmObjectHandle::firstAncestorOfType(T*& ancestor) const
{
ancestor = nullptr;
// Search parents for first type match
PdmObjectHandle* parent = nullptr;
PdmFieldHandle* parentField = this->parentField();
if (parentField) parent = parentField->ownerObject();
while (parent != nullptr)
if (parent != nullptr)
{
T* objectOfType = dynamic_cast<T*>(parent);
if (objectOfType)
{
ancestor = objectOfType;
return;
}
// Get next level parent
PdmFieldHandle* nextParentField = parent->parentField();
if (nextParentField)
{
parent = nextParentField->ownerObject();
}
else
{
parent = nullptr;
}
parent->firstAncestorOrThisOfType<T>(ancestor);
}
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------