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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
118 lines
3.0 KiB
C++
118 lines
3.0 KiB
C++
/******************************************************************************
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* Qwt Widget Library
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* Copyright (C) 1997 Josef Wilgen
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* Copyright (C) 2002 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_PLOT_PICKER_H
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#define QWT_PLOT_PICKER_H
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#include "qwt_global.h"
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#include "qwt_picker.h"
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#include "qwt_axis_id.h"
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class QwtPlot;
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class QPointF;
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class QRectF;
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#if QT_VERSION < 0x060000
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template< typename T > class QVector;
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#endif
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/*!
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\brief QwtPlotPicker provides selections on a plot canvas
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QwtPlotPicker is a QwtPicker tailored for selections on
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a plot canvas. It is set to a x-Axis and y-Axis and
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translates all pixel coordinates into this coordinate system.
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*/
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class QWT_EXPORT QwtPlotPicker : public QwtPicker
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{
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Q_OBJECT
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public:
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explicit QwtPlotPicker( QWidget* canvas );
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virtual ~QwtPlotPicker();
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explicit QwtPlotPicker( QwtAxisId xAxisId, QwtAxisId yAxisId, QWidget* );
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explicit QwtPlotPicker( QwtAxisId xAxisId, QwtAxisId yAxisId,
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RubberBand rubberBand, DisplayMode trackerMode, QWidget* );
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virtual void setAxes( QwtAxisId xAxisId, QwtAxisId yAxisId );
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QwtAxisId xAxis() const;
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QwtAxisId yAxis() const;
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QwtPlot* plot();
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const QwtPlot* plot() const;
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QWidget* canvas();
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const QWidget* canvas() const;
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Q_SIGNALS:
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/*!
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A signal emitted in case of QwtPickerMachine::PointSelection.
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\param pos Selected point
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*/
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void selected( const QPointF& pos );
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/*!
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A signal emitted in case of QwtPickerMachine::RectSelection.
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\param rect Selected rectangle
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*/
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void selected( const QRectF& rect );
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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 pa Selected points
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*/
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void selected( const QVector< QPointF >& pa );
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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 QPointF& 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 QPointF& pos );
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protected:
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QRectF scaleRect() const;
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QRectF invTransform( const QRect& ) const;
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QRect transform( const QRectF& ) const;
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QPointF invTransform( const QPoint& ) const;
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QPoint transform( const QPointF& ) const;
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virtual QwtText trackerText( const QPoint& ) const QWT_OVERRIDE;
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virtual QwtText trackerTextF( const QPointF& ) 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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class PrivateData;
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PrivateData* m_data;
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};
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#endif
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