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# treeitem.cpp Example File
itemviews/sortingmodel/treeitem.cpp

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        /*
            treeitem.cpp

            A container for items of data supplied by the simple tree model.
        */

        #include <QStringList>

        #include "treeitem.h"

        TreeItem::TreeItem(QList<QVariant> data, TreeItem *parent)
        {
            parentItem = parent;
            itemData = data;
        }

        TreeItem::~TreeItem()
        {
            qDeleteAll(childItems);
        }

        void TreeItem::appendChild(TreeItem *item)
        {
            childItems.append(item);
        }

        TreeItem *TreeItem::child(int row)
        {
            return childItems.value(row);
        }

        int TreeItem::childCount() const
        {
            return childItems.count();
        }

        int TreeItem::childRow(TreeItem *item) const
        {
            return childItems.indexOf(item);
        }

        int TreeItem::columnCount() const
        {
            return itemData.count();
        }

        QVariant TreeItem::data(int column) const
        {
            return itemData.value(column);
        }

        TreeItem *TreeItem::parent()
        {
            return parentItem;
        }

        int TreeItem::row() const
        {
            if (parentItem)
                return parentItem->childRow(const_cast<TreeItem*>(this));

            return 0;
        }