#include <qmainwindow.h> class QwtPlotZoomer; class QwtPlotPicker; class QwtPlotPanner; class Plot; class QPolygon; class MainWindow : public QMainWindow { Q_OBJECT public: MainWindow(QWidget *parent = 0); private Q_SLOTS: void moved(const QPoint &); void selected(const QPolygon &); #ifndef QT_NO_PRINTER void print(); #endif void exportDocument(); void enableZoomMode(bool); private: void showInfo(QString text = QString::null); Plot *d_plot; QwtPlotZoomer *d_zoomer[2]; QwtPlotPicker *d_picker; QwtPlotPanner *d_panner; };