Method RemoveNodeInternal

Modules/QtWidgets/src/QmitkDataStorageTreeModel.cpp:657–693

}

void QmitkDataStorageTreeModel::RemoveNodeInternal(const mitk::DataNode *node)
{
  if (!m_Root)
    return;

  TreeItem *treeItem = m_Root->Find(node);
  if (!treeItem)
    return; // return because there is no treeitem containing this node

  TreeItem *parentTreeItem = treeItem->GetParent();
  QModelIndex parentIndex = this->IndexFromTreeItem(parentTreeItem);

  // emit beginRemoveRows event (QModelIndex is empty because we dont have a tree model)
  this->beginRemoveRows(parentIndex, treeItem->GetIndex(), treeItem->GetIndex());

  // remove node
  std::vector<TreeItem*> children = treeItem->GetChildren();
  delete treeItem;

  // emit endRemoveRows event
  endRemoveRows();

  // move all children of deleted node into its parent
  for (std::vector<TreeItem*>::iterator it = children.begin(); it != children.end(); it++)
  {
    // emit beginInsertRows event
    beginInsertRows(parentIndex, parentTreeItem->GetChildCount(), parentTreeItem->GetChildCount());

    // add nodes again
    parentTreeItem->AddChild(*it);

    // emit endInsertRows event
    endInsertRows();
  }

  this->AdjustLayerProperty();
}

void QmitkDataStorageTreeModel::RemoveNode(const mitk::DataNode *node)
{