/usr/include/qwt-qt4/qwt_dial_needle.h is in libqwt5-qt4-dev 5.2.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 | /* -*- 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_DIAL_NEEDLE_H
#define QWT_DIAL_NEEDLE_H 1
#include <qpalette.h>
#include "qwt_global.h"
class QPainter;
class QPoint;
/*!
\brief Base class for needles that can be used in a QwtDial.
QwtDialNeedle is a pointer that indicates a value by pointing
to a specific direction.
Qwt is missing a set of good looking needles.
Contributions are very welcome.
\sa QwtDial, QwtCompass
*/
class QWT_EXPORT QwtDialNeedle
{
public:
QwtDialNeedle();
virtual ~QwtDialNeedle();
/*!
Draw the needle
\param painter Painter
\param center Center of the dial, start position for the needle
\param length Length of the needle
\param direction Direction of the needle, in degrees counter clockwise
\param cg Color group, used for painting
*/
virtual void draw(QPainter *painter, const QPoint ¢er,
int length, double direction,
QPalette::ColorGroup cg = QPalette::Active) const = 0;
virtual void setPalette(const QPalette &);
const QPalette &palette() const;
protected:
static void drawKnob(QPainter *, const QPoint &pos,
int width, const QBrush &, bool sunken);
private:
QPalette d_palette;
};
/*!
\brief A needle for dial widgets
The following colors are used:
- QColorGroup::Mid\n
Pointer
- QColorGroup::base\n
Knob
\sa QwtDial, QwtCompass
*/
class QWT_EXPORT QwtDialSimpleNeedle: public QwtDialNeedle
{
public:
//! Style of the needle
enum Style
{
Arrow,
Ray
};
QwtDialSimpleNeedle(Style, bool hasKnob = true,
const QColor &mid = Qt::gray, const QColor &base = Qt::darkGray);
virtual void draw(QPainter *, const QPoint &, int length,
double direction, QPalette::ColorGroup = QPalette::Active) const;
static void drawArrowNeedle(QPainter *,
const QPalette&, QPalette::ColorGroup,
const QPoint &, int length, int width, double direction,
bool hasKnob);
static void drawRayNeedle(QPainter *,
const QPalette&, QPalette::ColorGroup,
const QPoint &, int length, int width, double direction,
bool hasKnob);
void setWidth(int width);
int width() const;
private:
Style d_style;
bool d_hasKnob;
int d_width;
};
/*!
\brief A magnet needle for compass widgets
A magnet needle points to two opposite directions indicating
north and south.
The following colors are used:
- QColorGroup::Light\n
Used for pointing south
- QColorGroup::Dark\n
Used for pointing north
- QColorGroup::Base\n
Knob (ThinStyle only)
\sa QwtDial, QwtCompass
*/
class QWT_EXPORT QwtCompassMagnetNeedle: public QwtDialNeedle
{
public:
//! Style of the needle
enum Style
{
TriangleStyle,
ThinStyle
};
QwtCompassMagnetNeedle(Style = TriangleStyle,
const QColor &light = Qt::white, const QColor &dark = Qt::red);
virtual void draw(QPainter *, const QPoint &, int length,
double direction, QPalette::ColorGroup = QPalette::Active) const;
static void drawTriangleNeedle(QPainter *,
const QPalette &, QPalette::ColorGroup,
const QPoint &, int length, double direction);
static void drawThinNeedle(QPainter *,
const QPalette &, QPalette::ColorGroup,
const QPoint &, int length, double direction);
protected:
static void drawPointer(QPainter *painter, const QBrush &brush,
int colorOffset, const QPoint ¢er,
int length, int width, double direction);
private:
Style d_style;
};
/*!
\brief An indicator for the wind direction
QwtCompassWindArrow shows the direction where the wind comes from.
- QColorGroup::Light\n
Used for Style1, or the light half of Style2
- QColorGroup::Dark\n
Used for the dark half of Style2
\sa QwtDial, QwtCompass
*/
class QWT_EXPORT QwtCompassWindArrow: public QwtDialNeedle
{
public:
//! Style of the arrow
enum Style
{
Style1,
Style2
};
QwtCompassWindArrow(Style, const QColor &light = Qt::white,
const QColor &dark = Qt::gray);
virtual void draw(QPainter *, const QPoint &, int length,
double direction, QPalette::ColorGroup = QPalette::Active) const;
static void drawStyle1Needle(QPainter *,
const QPalette &, QPalette::ColorGroup,
const QPoint &, int length, double direction);
static void drawStyle2Needle(QPainter *,
const QPalette &, QPalette::ColorGroup,
const QPoint &, int length, double direction);
private:
Style d_style;
};
#endif // QWT_DIAL_NEEDLE_H
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