workspace/plasma/dataengines/systemmonitor/systemmonitor.h

   1 /*
   2  *   Copyright (C) 2007 John Tapsell <tapsell@kde.org>
   3  *
   4  *   This program is free software; you can redistribute it and/or modify
   5  *   it under the terms of the GNU Library General Public License version 2 as
   6  *   published by the Free Software Foundation
   7  *
   8  *   This program is distributed in the hope that it will be useful,
   9  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  *   GNU General Public License for more details
  12  *
  13  *   You should have received a copy of the GNU Library General Public
  14  *   License along with this program; if not, write to the
  15  *   Free Software Foundation, Inc.,
  16  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  17  */
  18
  19 #ifndef SYSTEMMONITORENGINE_H
  20 #define SYSTEMMONITORENGINE_H
  21
  22 #include <Plasma/DataEngine>
  23
  24 #include "../../ksysguard/gui/ksgrd/SensorClient.h"
  25
  26 #include <QStringList>
  27
  28 class QTimer;
  29
  30 /**
  31  * This class evaluates the basic expressions given in the interface.
  32  */
  33 class SystemMonitorEngine : public Plasma::DataEngine, public KSGRD::SensorClient
  34 {
  35     Q_OBJECT
  36
  37     public:
  38         /** Inherited from Plasma::DataEngine.  Returns a list of all the sensors that ksysguardd knows about. */
  39         virtual QStringList sources() const;
  40         SystemMonitorEngine( QObject* parent, const QVariantList& args );
  41         ~SystemMonitorEngine();
  42
  43     protected:
  44         bool sourceRequestEvent(const QString &name);
  45         /** inherited from SensorClient */
  46         virtual void answerReceived( int id, const QList<QByteArray>&answer );
  47         virtual void sensorLost( int );
  48         virtual bool updateSourceEvent(const QString &sensorName);
  49
  50
  51     protected slots:
  52         void updateSensors();
  53
  54     private:
  55         QStringList m_sensors;
  56         QTimer* m_timer;
  57         int m_waitingFor;
  58 };
  59
  60 K_EXPORT_PLASMA_DATAENGINE(systemmonitor, SystemMonitorEngine)
  61
  62 #endif
  63