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00012 #ifndef QWT_PLOT_PICKER_H
00013 #define QWT_PLOT_PICKER_H
00014
00015 #include "qwt_double_rect.h"
00016 #include "qwt_plot_canvas.h"
00017 #include "qwt_picker.h"
00018
00019 class QwtPlot;
00020
00029 class QWT_EXPORT QwtPlotPicker: public QwtPicker
00030 {
00031 Q_OBJECT
00032
00033 public:
00034 explicit QwtPlotPicker(QwtPlotCanvas *);
00035
00036 explicit QwtPlotPicker(int xAxis, int yAxis,
00037 QwtPlotCanvas *);
00038
00039 explicit QwtPlotPicker(int xAxis, int yAxis, int selectionFlags,
00040 RubberBand rubberBand, DisplayMode trackerMode,
00041 QwtPlotCanvas *);
00042
00043 virtual void setAxis(int xAxis, int yAxis);
00044
00045 int xAxis() const;
00046 int yAxis() const;
00047
00048 QwtPlot *plot();
00049 const QwtPlot *plot() const;
00050
00051 QwtPlotCanvas *canvas();
00052 const QwtPlotCanvas *canvas() const;
00053
00054 signals:
00055
00060 void selected(const QwtDoublePoint &pos);
00061
00066 void selected(const QwtDoubleRect &rect);
00067
00074 void selected(const QwtArray<QwtDoublePoint> &pa);
00075
00082 void appended(const QwtDoublePoint &pos);
00083
00091 void moved(const QwtDoublePoint &pos);
00092
00093 protected:
00094 QwtDoubleRect scaleRect() const;
00095
00096 QwtDoubleRect invTransform(const QRect &) const;
00097 QRect transform(const QwtDoubleRect &) const;
00098
00099 QwtDoublePoint invTransform(const QPoint &) const;
00100 QPoint transform(const QwtDoublePoint &) const;
00101
00102 virtual QwtText trackerText(const QPoint &) const;
00103 virtual QwtText trackerText(const QwtDoublePoint &) const;
00104
00105 virtual void move(const QPoint &);
00106 virtual void append(const QPoint &);
00107 virtual bool end(bool ok = true);
00108
00109 private:
00110 int d_xAxis;
00111 int d_yAxis;
00112 };
00113
00114 #endif