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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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-1);
+
+ fileCount += itemsToFetch;
+
+ endInsertRows();
+
+ emit numberPopulated(itemsToFetch);
+}
+//![2]
+
+//![0]
+void FileListModel::setDirPath(const QString &path)
+{
+ QDir dir(path);
+
+ fileList = dir.entryList();
+ fileCount = 0;
+ reset();
+}
+//![0]
+