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/***************************************************************************
* Copyright (C) 2006 by Ken Werner *
* ken.werner@web.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#ifndef SYSFREQSRC_H
#define SYSFREQSRC_H
#include "labelsource.h"
#include "threadedtrigger.h"
#include <qfile.h>
#include <list>
/**
* SysFreqSrc reads frequency values from /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
*/
class SysFreqSrc : public LabelSource {
Q_OBJECT //macro which activates signals and slots (moc)
public:
/**
* Creates a new Source from the given File
*/
SysFreqSrc(QWidget* inParent, const QFile& inSourceFile);
virtual ~SysFreqSrc();
/**
* Creates instances of that Source (and returns pointers to them)
*/
static std::list<Source*> createInstances(QWidget* inParent);
/**
* Fetches and returns the value of this source
* This method is called from a thread so don't call it directly
*/
virtual QString fetchValue();
private:
/**
* The file from which the value is read
*/
QFile mSourceFile;
/**
* triggers the fetchValue method
*/
ThreadedTrigger mTrigger;
};
#endif //SYSFREQSRC_H
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