source: ntrip/trunk/BNC/qwt/qwt_point_mapper.h@ 9520

Last change on this file since 9520 was 9383, checked in by stoecker, 4 years ago

update to qwt verion 6.1.1 to fix build with newer Qt5

File size: 2.6 KB
RevLine 
[8127]1/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
2 * Qwt Widget Library
3 * Copyright (C) 1997 Josef Wilgen
4 * Copyright (C) 2002 Uwe Rathmann
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the Qwt License, Version 1.0
8 *****************************************************************************/
9
10#ifndef QWT_POINT_MAPPER_H
11#define QWT_POINT_MAPPER_H
12
13#include "qwt_global.h"
14#include "qwt_series_data.h"
15#include <qimage.h>
16
17class QwtScaleMap;
18class QPolygonF;
19class QPolygon;
20
21/*!
22 \brief A helper class for translating a series of points
23
24 QwtPointMapper is a collection of methods and optimizations
[9383]25 for translating a series of points into paint device coordinates.
26 It is used by QwtPlotCurve but might also be useful for
[8127]27 similar plot items displaying a QwtSeriesData<QPointF>.
28 */
29class QWT_EXPORT QwtPointMapper
30{
31public:
[9383]32 /*!
[8127]33 \brief Flags affecting the transformation process
34 \sa setFlag(), setFlags()
35 */
36 enum TransformationFlag
37 {
38 //! Round points to integer values
39 RoundPoints = 0x01,
40
[9383]41 /*!
[8127]42 Try to remove points, that are translated to the
43 same position.
44 */
45 WeedOutPoints = 0x02
46 };
47
[9383]48 /*!
[8127]49 \brief Flags affecting the transformation process
50 \sa setFlag(), setFlags()
51 */
52 typedef QFlags<TransformationFlag> TransformationFlags;
53
54 QwtPointMapper();
55 ~QwtPointMapper();
56
57 void setFlags( TransformationFlags );
58 TransformationFlags flags() const;
59
60 void setFlag( TransformationFlag, bool on = true );
61 bool testFlag( TransformationFlag ) const;
62
63 void setBoundingRect( const QRectF & );
64 QRectF boundingRect() const;
65
66 QPolygonF toPolygonF( const QwtScaleMap &xMap, const QwtScaleMap &yMap,
67 const QwtSeriesData<QPointF> *series, int from, int to ) const;
68
69 QPolygon toPolygon( const QwtScaleMap &xMap, const QwtScaleMap &yMap,
70 const QwtSeriesData<QPointF> *series, int from, int to ) const;
71
72 QPolygon toPoints( const QwtScaleMap &xMap, const QwtScaleMap &yMap,
73 const QwtSeriesData<QPointF> *series, int from, int to ) const;
74
75 QPolygonF toPointsF( const QwtScaleMap &xMap, const QwtScaleMap &yMap,
76 const QwtSeriesData<QPointF> *series, int from, int to ) const;
77
78 QImage toImage( const QwtScaleMap &xMap, const QwtScaleMap &yMap,
[9383]79 const QwtSeriesData<QPointF> *series, int from, int to,
[8127]80 const QPen &, bool antialiased, uint numThreads ) const;
81
82private:
83 class PrivateData;
84 PrivateData *d_data;
85};
86
87Q_DECLARE_OPERATORS_FOR_FLAGS( QwtPointMapper::TransformationFlags )
88
89#endif
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