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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** All rights reserved.
** Contact: http://www.qt-project.org/legal
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 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 the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "filelistmodel.h"
#include <QApplication>
#include <QPalette>
#include <QBrush>
#include <QDir>
FileListModel::FileListModel(QObject *parent)
: QAbstractListModel(parent)
{
}
//![4]
int FileListModel::rowCount(const QModelIndex & /* parent */) const
{
return fileCount;
}
QVariant FileListModel::data(const QModelIndex &index, int role) const
{
if (!index.isValid())
return QVariant();
if (index.row() >= fileList.size() || index.row() < 0)
return QVariant();
if (role == Qt::DisplayRole)
return fileList.at(index.row());
else if (role == Qt::BackgroundRole) {
int batch = (index.row() / 100) % 2;
if (batch == 0)
return qApp->palette().base();
else
return qApp->palette().alternateBase();
}
return QVariant();
}
//![4]
//![1]
bool FileListModel::canFetchMore(const QModelIndex & /* index */) const
{
if (fileCount < fileList.size())
return true;
else
return false;
}
//![1]
//![2]
void FileListModel::fetchMore(const QModelIndex & /* index */)
{
int remainder = fileList.size() - fileCount;
int itemsToFetch = qMin(100, remainder);
beginInsertRows(QModelIndex(), fileCount, fileCount+itemsToFetch);
fileCount += itemsToFetch;
endInsertRows();
emit numberPopulated(itemsToFetch);
}
//![2]
//![0]
void FileListModel::setDirPath(const QString &path)
{
QDir dir(path);
fileList = dir.entryList();
fileCount = 0;
reset();
}
//![0]
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