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App: circular reference testing routine for new links

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DocumentObject::testIfLinkDAGCompatible: return true if link can be
created (no cycles will be made). False if the link will cause a
circular dependency and break recomputes.
This commit is contained in:
DeepSOIC
2015-07-08 21:36:39 +03:00
committed by Stefan Tröger
parent a8781fdacc
commit 565a191689
3 changed files with 56 additions and 2 deletions
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35
src/App/DocumentObject.cpp
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@@ -172,6 +172,41 @@ DocumentObjectGroup* DocumentObject::getGroup() const
return DocumentObjectGroup::getGroupOfObject(this);
}
bool DocumentObject::testIfLinkDAGCompatible(DocumentObject *linkTo) const
{
std::vector<App::DocumentObject*> linkTo_in_vector;
linkTo_in_vector.reserve(1);
linkTo_in_vector.push_back(linkTo);
return this->testIfLinkDAGCompatible(linkTo_in_vector);
}
bool DocumentObject::testIfLinkDAGCompatible(const std::vector<DocumentObject *> &linksTo) const
{
Document* doc = this->getDocument();
if (!doc)
throw Base::Exception("DocumentObject::testIfLinkIsDAG: object is not in any document.");
std::vector<App::DocumentObject*> deplist = doc->getDependencyList(linksTo);
if( std::find(deplist.begin(),deplist.end(),this) != deplist.end() )
//found this in dependency list
return false;
else
return true;
}
bool DocumentObject::testIfLinkDAGCompatible(PropertyLinkSubList &linksTo) const
{
const std::vector<App::DocumentObject*> &linksTo_in_vector = linksTo.getValues();
return this->testIfLinkDAGCompatible(linksTo_in_vector);
}
bool DocumentObject::testIfLinkDAGCompatible(PropertyLinkSub &linkTo) const
{
std::vector<App::DocumentObject*> linkTo_in_vector;
linkTo_in_vector.reserve(1);
linkTo_in_vector.push_back(linkTo.getValue());
return this->testIfLinkDAGCompatible(linkTo_in_vector);
}
void DocumentObject::onLostLinkToObject(DocumentObject*)
{