Examples of org.freeplane.features.map.FirstGroupNode.undoableActivateHook()

    final NodeModel newNode = addNewNode(parentNode, end+1, isLeft);
    final SummaryNode summary = modeController.getExtension(SummaryNode.class);
    summary.undoableActivateHook(newNode, summary);
    final FirstGroupNode firstGroup = modeController.getExtension(FirstGroupNode.class);
    final NodeModel firstNode = parentNode.getChildAt(start);
    firstGroup.undoableActivateHook(firstNode, firstGroup);
    int level = summaryLevel;
    for(int i = start+1; i < end; i++){
      NodeModel node = parentNode.getChildAt(i);
      if(isLeft != node.isLeft())
        continue;

      if(SummaryNode.isSummaryNode(node))
        level++;
      else
        level = 0;
      if(level == summaryLevel && SummaryNode.isFirstGroupNode(node))
        firstGroup.undoableActivateHook(node, firstGroup);
    }
    startEditingAfterSelect(newNode);
    select(newNode);


  }

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