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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the test suite 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "incrementalmodel.h"
#include <QApplication>
#include <QDebug>
IncrementalModel::IncrementalModel(QObject *parent)
: QAbstractListModel(parent), count(0)
{
for (int i = 0; i < 100; ++i)
list.append("Item " + QString::number(i));
}
int IncrementalModel::rowCount(const QModelIndex & /* parent */) const
{
return count;
}
QVariant IncrementalModel::data(const QModelIndex &index, int role) const
{
if (!index.isValid())
return QVariant();
if (index.row() >= list.size() || index.row() < 0)
return QVariant();
if (role == Qt::DisplayRole)
return list.at(index.row());
return QVariant();
}
bool IncrementalModel::canFetchMore(const QModelIndex & /* index */) const
{
if (count < list.size())
return true;
else
return false;
}
void IncrementalModel::fetchMore(const QModelIndex & /* index */)
{
int remainder = list.size() - count;
int itemsToFetch = qMin(5, remainder);
beginInsertRows(QModelIndex(), count, count+itemsToFetch-1);
count += itemsToFetch;
endInsertRows();
}
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