text: // Copyright 2022 Intelligent Robotics Lab
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  //     http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  
  
  #include <QWidget>
  #include <QTreeWidget>
  
  #include "rqt_plansys2_performers/PerformersTree.hpp"
  
  namespace rqt_plansys2_performers
  {
  
  PerformersTree::PerformersTree()
  : QTreeWidget()
  {
  }
  
  void
  PerformersTree::clearAllItems()
  {
    int rows = topLevelItemCount();
  
    while (topLevelItemCount() > 0) {
      rowsAboutToBeRemoved(rootIndex(), 0, 0);
      delete takeTopLevelItem(0);
      rowsRemoved(rootIndex(), 0, 0);/* code */
    }
  }
  
  }  // namespace rqt_plansys2_performers
  