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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.1, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
/*
treeitem.cpp
A container for items of data supplied by the simple tree model.
*/
#include <QStringList>
#include "treeitem.h"
//! [0]
TreeItem::TreeItem(const QVector<QVariant> &data, TreeItem *parent)
{
parentItem = parent;
itemData = data;
}
//! [0]
//! [1]
TreeItem::~TreeItem()
{
qDeleteAll(childItems);
}
//! [1]
//! [2]
TreeItem *TreeItem::child(int number)
{
return childItems.value(number);
}
//! [2]
//! [3]
int TreeItem::childCount() const
{
return childItems.count();
}
//! [3]
//! [4]
int TreeItem::childNumber() const
{
if (parentItem)
return parentItem->childItems.indexOf(const_cast<TreeItem*>(this));
return 0;
}
//! [4]
//! [5]
int TreeItem::columnCount() const
{
return itemData.count();
}
//! [5]
//! [6]
QVariant TreeItem::data(int column) const
{
return itemData.value(column);
}
//! [6]
//! [7]
bool TreeItem::insertChildren(int position, int count, int columns)
{
if (position < 0 || position > childItems.size())
return false;
for (int row = 0; row < count; ++row) {
QVector<QVariant> data(columns);
TreeItem *item = new TreeItem(data, this);
childItems.insert(position, item);
}
return true;
}
//! [7]
//! [8]
bool TreeItem::insertColumns(int position, int columns)
{
if (position < 0 || position > itemData.size())
return false;
for (int column = 0; column < columns; ++column)
itemData.insert(position, QVariant());
foreach (TreeItem *child, childItems)
child->insertColumns(position, columns);
return true;
}
//! [8]
//! [9]
TreeItem *TreeItem::parent()
{
return parentItem;
}
//! [9]
//! [10]
bool TreeItem::removeChildren(int position, int count)
{
if (position < 0 || position + count > childItems.size())
return false;
for (int row = 0; row < count; ++row)
delete childItems.takeAt(position);
return true;
}
//! [10]
bool TreeItem::removeColumns(int position, int columns)
{
if (position < 0 || position + columns > itemData.size())
return false;
for (int column = 0; column < columns; ++column)
itemData.remove(position);
foreach (TreeItem *child, childItems)
child->removeColumns(position, columns);
return true;
}
//! [11]
bool TreeItem::setData(int column, const QVariant &value)
{
if (column < 0 || column >= itemData.size())
return false;
itemData[column] = value;
return true;
}
//! [11]
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