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Sourcecode: qt4-x11 version File versions

QModelIndex TreeModel::parent ( const QModelIndex index  )  const [virtual]




Implements QAbstractItemModel.

Definition at line 153 of file treemodel.cpp.

References QAbstractItemModel::createIndex(), QModelIndex::internalPointer(), QModelIndex::isValid(), TreeItem::parent(), and TreeItem::row().

    if (!index.isValid())
        return QModelIndex();

    TreeItem *childItem = static_cast<TreeItem*>(index.internalPointer());
    TreeItem *parentItem = childItem->parent();

    if (parentItem == rootItem)
        return QModelIndex();

    return createIndex(parentItem->row(), 0, parentItem);

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