int Model_AttributeIntArray::size()
{
- return myArray.IsNull() ? 0 : myArray->Length();
+ if (myArray.IsNull() || !myArray->IsValid()) {
+ // this could be on undo and then redo creation of the attribute
+ // in result creation it may be uninitialized
+ myIsInitialized = myLab.FindAttribute(TDataStd_IntegerArray::GetID(), myArray);
+ }
+ // checking the validity because attribute (as a field) may be presented,
+ // but without label: it is undoed
+ return (myArray.IsNull() || !myArray->IsValid()) ? 0 : myArray->Length();
}
void Model_AttributeIntArray::setSize(const int theSize)
{
- if (myArray.IsNull()) { // create array if it is not done yet
+ if (myArray.IsNull() || !myArray->IsValid()) { // create array if it is not done yet
if (theSize != 0) { // if size is zero, nothing to do (null array means there is no array)
myArray = TDataStd_IntegerArray::Set(myLab, 0, theSize);
owner()->data()->sendAttributeUpdated(this);