source: ntrip/trunk/BNC/qwt/qwt_plot_intervalcurve.h@ 8597

Last change on this file since 8597 was 8127, checked in by stoecker, 7 years ago

update qwt and qwtpolar, many QT5 fixes (unfinished)

File size: 3.9 KB
RevLine 
[4271]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_PLOT_INTERVAL_CURVE_H
11#define QWT_PLOT_INTERVAL_CURVE_H
12
13#include "qwt_global.h"
14#include "qwt_plot_seriesitem.h"
15#include "qwt_series_data.h"
16
17class QwtIntervalSymbol;
18
19/*!
20 \brief QwtPlotIntervalCurve represents a series of samples, where each value
21 is associated with an interval ( \f$[y1,y2] = f(x)\f$ ).
22
23 The representation depends on the style() and an optional symbol()
24 that is displayed for each interval. QwtPlotIntervalCurve might be used
[8127]25 to display error bars or the area between 2 curves.
[4271]26*/
[8127]27class QWT_EXPORT QwtPlotIntervalCurve:
28 public QwtPlotSeriesItem, public QwtSeriesStore<QwtIntervalSample>
[4271]29{
30public:
31 /*!
32 \brief Curve styles.
33 The default setting is QwtPlotIntervalCurve::Tube.
34
35 \sa setStyle(), style()
36 */
37 enum CurveStyle
38 {
39 /*!
40 Don't draw a curve. Note: This doesn't affect the symbols.
41 */
42 NoCurve,
43
44 /*!
45 Build 2 curves from the upper and lower limits of the intervals
46 and draw them with the pen(). The area between the curves is
47 filled with the brush().
48 */
49 Tube,
50
51 /*!
52 Styles >= QwtPlotIntervalCurve::UserCurve are reserved for derived
53 classes that overload drawSeries() with
54 additional application specific curve types.
55 */
56 UserCurve = 100
57 };
58
59 /*!
60 Attributes to modify the drawing algorithm.
61 \sa setPaintAttribute(), testPaintAttribute()
62 */
63 enum PaintAttribute
64 {
65 /*!
66 Clip polygons before painting them. In situations, where points
67 are far outside the visible area (f.e when zooming deep) this
68 might be a substantial improvement for the painting performance.
69 */
70 ClipPolygons = 0x01,
71
72 //! Check if a symbol is on the plot canvas before painting it.
73 ClipSymbol = 0x02
74 };
75
76 //! Paint attributes
77 typedef QFlags<PaintAttribute> PaintAttributes;
78
79 explicit QwtPlotIntervalCurve( const QString &title = QString::null );
80 explicit QwtPlotIntervalCurve( const QwtText &title );
81
82 virtual ~QwtPlotIntervalCurve();
83
84 virtual int rtti() const;
85
86 void setPaintAttribute( PaintAttribute, bool on = true );
87 bool testPaintAttribute( PaintAttribute ) const;
88
89 void setSamples( const QVector<QwtIntervalSample> & );
[8127]90 void setSamples( QwtSeriesData<QwtIntervalSample> * );
[4271]91
[8127]92 void setPen( const QColor &, qreal width = 0.0, Qt::PenStyle = Qt::SolidLine );
[4271]93 void setPen( const QPen & );
94 const QPen &pen() const;
95
96 void setBrush( const QBrush & );
97 const QBrush &brush() const;
98
99 void setStyle( CurveStyle style );
100 CurveStyle style() const;
101
102 void setSymbol( const QwtIntervalSymbol * );
103 const QwtIntervalSymbol *symbol() const;
104
105 virtual void drawSeries( QPainter *p,
106 const QwtScaleMap &xMap, const QwtScaleMap &yMap,
107 const QRectF &canvasRect, int from, int to ) const;
108
109 virtual QRectF boundingRect() const;
110
[8127]111 virtual QwtGraphic legendIcon( int index, const QSizeF & ) const;
112
[4271]113protected:
114
115 void init();
116
117 virtual void drawTube( QPainter *,
118 const QwtScaleMap &xMap, const QwtScaleMap &yMap,
119 const QRectF &canvasRect, int from, int to ) const;
120
121 virtual void drawSymbols( QPainter *, const QwtIntervalSymbol &,
122 const QwtScaleMap &xMap, const QwtScaleMap &yMap,
123 const QRectF &canvasRect, int from, int to ) const;
124
125private:
126 class PrivateData;
127 PrivateData *d_data;
128};
129
130Q_DECLARE_OPERATORS_FOR_FLAGS( QwtPlotIntervalCurve::PaintAttributes )
131
132#endif
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