Method OnLabelModified

Modules/SegmentationUI/src/QmitkMultiLabelTreeModel.cpp:986–1023

}

void QmitkMultiLabelTreeModel::OnLabelModified(LabelValueType labelValue)
{
  if (labelValue == mitk::MultiLabelSegmentation::UNLABELED_VALUE) return;

  auto instanceItem = GetInstanceItem(labelValue, this->m_RootItem.get());

  if (nullptr == instanceItem)
  {
    mitkThrow() << "Internal invalid state. QmitkMultiLabelTreeModel received a LabelModified signal for a label that is not represented in the model. Invalid label: " << labelValue;
  }

  auto internalLabel = instanceItem->GetLabel();
  auto segLabel = m_Segmentation->GetLabel(labelValue);
  if (segLabel != internalLabel)
  { //label instance has been changed in the segmentation instance
    //we have to update internal pointer
    instanceItem->m_Label = segLabel;
  }

  auto labelItem = instanceItem->ParentItem();

  m_ModelUpdateOngoing = true;
  if (labelItem->m_ClassName == instanceItem->GetLabel()->GetName())
  { //only the state of the label changed, but not its position in the model tree.
    auto index = labelItem->HandleAsInstance() ? GetIndexByItem(labelItem, this) : GetIndexByItem(instanceItem, this);
    auto rightIndex = index.sibling(index.row(), this->columnCount() - 1);
    emit dataChanged(index, rightIndex);
  }
  else
  { //the name of the label changed and thus its place in the model tree, delete the current item and add a new one
    this->OnLabelRemoved(labelValue);
    this->OnLabelAdded(labelValue);
  }

  m_NearestLabelValueToLastChange = labelValue;
  m_ModelUpdateOngoing = false;
  emit modelChanged();
}

const QmitkMultiLabelSegTreeItem* QmitkMultiLabelTreeModel::ClosestLabelInstanceIndex(const QmitkMultiLabelSegTreeItem* currentItem) const
{