+/// Returns in theDelta labels that has been modified in the latest transaction of theDoc
+static void modifiedLabels(const Handle(TDocStd_Document)& theDoc, TDF_LabelList& theDelta,
+ const bool isRedo = false) {
+ Handle(TDF_Delta) aDelta;
+ if (isRedo)
+ aDelta = theDoc->GetRedos().First();
+ else
+ aDelta = theDoc->GetUndos().Last();
+ TDF_LabelList aDeltaList;
+ aDelta->Labels(aDeltaList); // it clears list, so, use new one and then append to the result
+ for(TDF_ListIteratorOfLabelList aListIter(aDeltaList); aListIter.More(); aListIter.Next()) {
+ theDelta.Append(aListIter.Value());
+ }
+ // add also label of the modified attributes
+ const TDF_AttributeDeltaList& anAttrs = aDelta->AttributeDeltas();
+ for (TDF_ListIteratorOfAttributeDeltaList anAttr(anAttrs); anAttr.More(); anAttr.Next()) {
+ theDelta.Append(anAttr.Value()->Label());
+ }
+}
+