1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
* Qwt Widget Library
* Copyright (C) 1997 Josef Wilgen
* Copyright (C) 2002 Uwe Rathmann
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the Qwt License, Version 1.0
*****************************************************************************/
#ifndef QWT_COMPASS_ROSE_H
#define QWT_COMPASS_ROSE_H 1
#include <qpalette.h>
#include "qwt_global.h"
class QPainter;
/*!
\brief Abstract base class for a compass rose
*/
class QWT_EXPORT QwtCompassRose
{
public:
virtual ~QwtCompassRose() {};
virtual void setPalette(const QPalette &p) {
d_palette = p;
}
const QPalette &palette() const {
return d_palette;
}
/*!
Draw the rose
\param painter Painter
\param center Center point
\param radius Radius of the rose
\param north Position
\param colorGroup Color group
*/
virtual void draw(QPainter *painter, const QPoint ¢er,
int radius, double north,
QPalette::ColorGroup colorGroup = QPalette::Active) const = 0;
private:
QPalette d_palette;
};
/*!
\brief A simple rose for QwtCompass
*/
class QWT_EXPORT QwtSimpleCompassRose: public QwtCompassRose
{
public:
QwtSimpleCompassRose(int numThorns = 8, int numThornLevels = -1);
void setWidth(double w);
double width() const {
return d_width;
}
void setNumThorns(int count);
int numThorns() const;
void setNumThornLevels(int count);
int numThornLevels() const;
void setShrinkFactor(double factor) {
d_shrinkFactor = factor;
}
double shrinkFactor() const {
return d_shrinkFactor;
}
virtual void draw(QPainter *, const QPoint ¢er, int radius,
double north, QPalette::ColorGroup = QPalette::Active) const;
static void drawRose(QPainter *,
#if QT_VERSION < 0x040000
const QColorGroup &,
#else
const QPalette &,
#endif
const QPoint ¢er, int radius, double origin, double width,
int numThorns, int numThornLevels, double shrinkFactor);
private:
double d_width;
int d_numThorns;
int d_numThornLevels;
double d_shrinkFactor;
};
#endif // QWT_COMPASS_ROSE_H