cpuplot.h
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#include <qwt_plot.h>
#include "cpustat.h"
#define HISTORY 60 // seconds
class QwtPlotCurve;
class CpuPlot : public QwtPlot
{
Q_OBJECT
public:
enum CpuData
{
User,
System,
Total,
Idle,
NCpuData
};
CpuPlot( QWidget * = 0 );
const QwtPlotCurve *cpuCurve( int id ) const
{
return data[id].curve;
}
protected:
void timerEvent( QTimerEvent *e );
private Q_SLOTS:
void legendChecked( const QVariant &, bool on );
private:
void showCurve( QwtPlotItem *, bool on );
struct
{
QwtPlotCurve *curve;
double data[HISTORY];
} data[NCpuData];
double timeData[HISTORY];
int dataCount;
CpuStat cpuStat;
};