#include <qframe.h> #include <qwt_plot_curve.h> #include <qwt_scale_map.h> class MainWin : public QFrame { public: enum { curveCount = 4 }; QwtScaleMap xMap[curveCount]; QwtScaleMap yMap[curveCount]; QwtPlotCurve curve[curveCount]; public: MainWin(); protected: virtual void timerEvent(QTimerEvent *t); #if QT_VERSION >= 0x040000 virtual void paintEvent(QPaintEvent *); #endif virtual void drawContents(QPainter *); private: void newValues(); };