22 lines
468 B
C++
22 lines
468 B
C++
#ifndef _CURVE_TRACKER_H_
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#define _CURVE_TRACKER_H_
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#include <qwt_plot_picker.h>
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class QwtPlotCurve;
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class CurveTracker: public QwtPlotPicker
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{
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public:
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CurveTracker( QWidget * );
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protected:
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virtual QwtText trackerTextF( const QPointF & ) const;
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virtual QRect trackerRect( const QFont & ) const;
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private:
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QString curveInfoAt( const QwtPlotCurve *, const QPointF & ) const;
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QLineF curveLineAt( const QwtPlotCurve *, double x ) const;
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};
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#endif
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