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(); }