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33fc476d89
* require qwt >=6.2 (and fallback to internal 6.3 if system's qwt doesn't suffice) * debian doesn't have qwt for Qt6 and won't have it for trixie
99 lines
2.5 KiB
C++
99 lines
2.5 KiB
C++
/******************************************************************************
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* QwtPolar Widget Library
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* Copyright (C) 2008 Uwe Rathmann
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the Qwt License, Version 1.0
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*****************************************************************************/
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#ifndef QWT_POLAR_PICKER_H
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#define QWT_POLAR_PICKER_H
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#include "qwt_global.h"
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#include "qwt_picker.h"
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#include <qvector.h>
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#include <qpainterpath.h>
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class QwtPolarPlot;
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class QwtPolarCanvas;
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class QwtPointPolar;
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/*!
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\brief QwtPolarPicker provides selections on a plot canvas
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QwtPolarPicker is a QwtPicker tailored for selections on
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a polar plot canvas.
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*/
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class QWT_EXPORT QwtPolarPicker : public QwtPicker
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{
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Q_OBJECT
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public:
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explicit QwtPolarPicker( QwtPolarCanvas* );
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virtual ~QwtPolarPicker();
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explicit QwtPolarPicker(
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RubberBand rubberBand, DisplayMode trackerMode,
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QwtPolarCanvas* );
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QwtPolarPlot* plot();
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const QwtPolarPlot* plot() const;
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QwtPolarCanvas* canvas();
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const QwtPolarCanvas* canvas() const;
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virtual QRect pickRect() const;
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Q_SIGNALS:
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/*!
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A signal emitted in case of selectionFlags() & PointSelection.
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\param pos Selected point
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*/
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void selected( const QwtPointPolar& pos );
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/*!
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A signal emitting the selected points,
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at the end of a selection.
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\param points Selected points
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*/
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void selected( const QVector< QwtPointPolar >& points );
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/*!
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A signal emitted when a point has been appended to the selection
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\param pos Position of the appended point.
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\sa append(). moved()
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*/
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void appended( const QwtPointPolar& pos );
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/*!
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A signal emitted whenever the last appended point of the
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selection has been moved.
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\param pos Position of the moved last point of the selection.
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\sa move(), appended()
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*/
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void moved( const QwtPointPolar& pos );
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protected:
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QwtPointPolar invTransform( const QPoint& ) const;
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virtual QwtText trackerText( const QPoint& ) const QWT_OVERRIDE;
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virtual QwtText trackerTextPolar( const QwtPointPolar& ) const;
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virtual void move( const QPoint& ) QWT_OVERRIDE;
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virtual void append( const QPoint& ) QWT_OVERRIDE;
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virtual bool end( bool ok = true ) QWT_OVERRIDE;
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private:
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virtual QPainterPath pickArea() const QWT_OVERRIDE;
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class PrivateData;
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PrivateData* m_data;
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};
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#endif
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