cpuplot.h

This a framework to test new ideas in transmission technology. Actual development is a LDPC-coder in

#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;
};