//----------------------------------------------------------------- // This class shows how to extend QwtPlotItems. It displays a // pie chart of user/total/idle cpu usage in percent. //----------------------------------------------------------------- #include <qwt_plot_item.h> class CpuPieMarker: public QwtPlotItem { public: CpuPieMarker(); virtual int rtti() const; virtual void draw(QPainter *p, const QwtScaleMap &, const QwtScaleMap &, const QRectF &rect) const; };