treeitem.cpp

来自「奇趣公司比较新的qt/emd版本」· C++ 代码 · 共 95 行

/****************************************************************************
**
** Copyright (C) 2005-2007 Trolltech ASA. All rights reserved.
**
** This file is part of the example classes of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file.  Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at [e-mail].
**
** In addition, as a special exception, Trolltech gives you certain
** additional rights. These rights are described in the Trolltech GPL
** Exception version 1.0, which can be found at
** http://www.trolltech.com/products/qt/gplexception/ and in the file
** GPL_EXCEPTION.txt in this package.
**
** In addition, as a special exception, Trolltech, as the sole copyright
** holder for Qt Designer, grants users of the Qt/Eclipse Integration
** plug-in the right for the Qt/Eclipse Integration to link to
** functionality provided by Qt Designer and its related libraries.
**
** Trolltech reserves all rights not expressly granted herein.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

/*
    treeitem.cpp

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

#include <QStringList>

#include "treeitem.h"

TreeItem::TreeItem(const 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::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->childItems.indexOf(const_cast<TreeItem*>(this));

    return 0;
}