text: #ifndef TREEMODEL_H
  #define TREEMODEL_H
  
  #include <QAbstractItemModel>
  #include <QModelIndex>
  #include <QVariant>
  
  class TreeItem;
  
  class TreeModel : public QAbstractItemModel
  {
      Q_OBJECT
  public:
      TreeModel(QObject *parent = 0);
      ~TreeModel();
  
      QVariant data(const QModelIndex &index, int role) const;
      Qt::ItemFlags flags(const QModelIndex &index) const;
      QVariant headerData(int section, Qt::Orientation orientation,
                          int role = Qt::DisplayRole) const;
      QModelIndex index(int row, int column,
                        const QModelIndex &parent = QModelIndex()) const;
      QModelIndex parent(const QModelIndex &index) const;
      int rowCount(const QModelIndex &parent = QModelIndex()) const;
      int columnCount(const QModelIndex &parent = QModelIndex()) const;
  
  private:
      void setupModelData(const QStringList &lines, TreeItem *parent);
  
      TreeItem *rootItem_;
      
  };
  
  #endif // TREEMODEL_H
  