filereader.cpp Example File

 /****************************************************************************
 **
 ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
 ** Contact: http://www.qt-project.org/legal
 **
 ** This file is part of the Qt Mobility Components.
 **
 ** $QT_BEGIN_LICENSE:LGPL$
 ** 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 "filereader.h"
 #include "trace.h"
 #include <QtCore/QCoreApplication>
 #include <QtCore/QFile>
 #include <QtCore/QFileInfo>
 #include <QtCore/QTextStream>

 QString adjustPath(const QString &path)
 {
 #ifdef Q_OS_UNIX
 #ifdef Q_OS_MAC
     if (!QDir::isAbsolutePath(path))
         return QCoreApplication::applicationDirPath()
                 + QLatin1String("/../Resources/") + path;
 #else
     QString pathInInstallDir;
     const QString applicationDirPath = QCoreApplication::applicationDirPath();
     pathInInstallDir = QString::fromAscii("%1/../%2").arg(applicationDirPath, path);

     if (QFileInfo(pathInInstallDir).exists())
         return pathInInstallDir;
 #endif
 #endif
     return path;
 }

 QString FileReader::readFile(const QString &fileName)
 {
     qtTrace() << "FileReader::readFile" << "fileName" << fileName << "adjusted" << adjustPath(fileName);
     QString content;
     QFile file(adjustPath(fileName));
     if (file.open(QIODevice::ReadOnly)) {
         QTextStream stream(&file);
         content = stream.readAll();
     }
     return content;
 }