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treeitem.h Example File
^{itemviews/sortingmodel/treeitem.h}

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    #ifndef TREEITEM_H
    #define TREEITEM_H

    #include <QList>
    #include <QVariant>

    class TreeItem
    {
    public:
        TreeItem(QList<QVariant> data, TreeItem *parent = 0);
        ~TreeItem();

        void appendChild(TreeItem *child);

        TreeItem *child(int row);
        int childCount() const;
        int columnCount() const;
        QVariant data(int column) const;
        int row() const;
        TreeItem *parent();

    private:
        int childRow(TreeItem *item) const;

        QList<TreeItem*> childItems;
        QList<QVariant> itemData;
        TreeItem *parentItem;
    };

    #endif