Qt 4.8: mcevibrator.cpp Example File (widgets/maemovibration/mcevibrator.cpp)

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# mcevibrator.cpp Example File

widgets/maemovibration/mcevibrator.cpp

     /****************************************************************************
     **
     ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
     ** Contact: http://www.qt-project.org/legal
     **
     ** This file is part of the QtCore module 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 Digia Plc 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.
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     #include "mcevibrator.h"

     #include <QStringList>
     #include <QDebug>
     #include <QDBusConnection>
     #include <QDBusMessage>

     #include <mce/dbus-names.h>

     const char MceVibrator::defaultMceFilePath[] = "/etc/mce/mce.ini";

     static void checkError(QDBusMessage &msg)
     {
         if (msg.type() == QDBusMessage::ErrorMessage)
             qDebug() << msg.errorName() << msg.errorMessage();
     }

     MceVibrator::MceVibrator(QObject *parent) :
         QObject(parent),
         mceInterface(MCE_SERVICE, MCE_REQUEST_PATH, MCE_REQUEST_IF,
                        QDBusConnection::systemBus())
     {
         QDBusMessage reply = mceInterface.call(MCE_ENABLE_VIBRATOR);
         checkError(reply);
     }

     MceVibrator::~MceVibrator()
     {
         deactivate(lastPatternName);
         QDBusMessage reply = mceInterface.call(MCE_DISABLE_VIBRATOR);
         checkError(reply);
     }

     void MceVibrator::vibrate(const QString &patternName)
     {
         deactivate(lastPatternName);
         lastPatternName = patternName;
         QDBusMessage reply = mceInterface.call(MCE_ACTIVATE_VIBRATOR_PATTERN, patternName);
         checkError(reply);
     }

     void MceVibrator::deactivate(const QString &patternName)
     {
         if (!patternName.isNull()) {
             QDBusMessage reply = mceInterface.call(MCE_DEACTIVATE_VIBRATOR_PATTERN, patternName);
             checkError(reply);
         }
     }

     QStringList MceVibrator::parsePatternNames(QTextStream &stream)
     {
         QStringList result;
         QString line;

         do {
             line = stream.readLine();
             if (line.startsWith(QLatin1String("VibratorPatterns="))) {
                 QString values = line.section('=', 1);
                 result = values.split(';');
                 break;
             }
         } while (!line.isNull());

         return result;
     }