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#include <qwt_plot.h>
#include "cpustat.h"
#define HISTORY 60 // seconds
class CpuPlot : public QwtPlot
{
Q_OBJECT
public:
enum CpuData
{
User,
System,
Total,
Idle,
Average,
NCpuData
};
CpuPlot(QWidget * = 0);
const QwtPlotCurve *cpuCurve(int id) const
{ return curve(data[id].curve); }
protected:
virtual void drawCanvasItems(QPainter *, const QRect &,
const QwtArray<QwtDiMap> &, const QwtPlotPrintFilter &) const;
void timerEvent(QTimerEvent *e);
private slots:
void toggleCurve(long);
private:
struct
{
long curve;
double data[HISTORY];
} data[NCpuData];
double timeData[HISTORY];
int dataCount;
CpuStat cpuStat;
};
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