| Qwt User's Guide
    5.2.3
    | 
#include <qwt_dial_needle.h>

| Public Types | |
| enum | Style { TriangleStyle, ThinStyle } | 
| Public Member Functions | |
| 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 | 
|  Public Member Functions inherited from QwtDialNeedle | |
| QwtDialNeedle () | |
| virtual | ~QwtDialNeedle () | 
| const QPalette & | palette () const | 
| virtual void | setPalette (const QPalette &) | 
| Static Public Member Functions | |
| static void | drawThinNeedle (QPainter *, const QPalette &, QPalette::ColorGroup, const QPoint &, int length, double direction) | 
| static void | drawTriangleNeedle (QPainter *, const QPalette &, QPalette::ColorGroup, const QPoint &, int length, double direction) | 
| Static Protected Member Functions | |
| static void | drawPointer (QPainter *painter, const QBrush &brush, int colorOffset, const QPoint ¢er, int length, int width, double direction) | 
|  Static Protected Member Functions inherited from QwtDialNeedle | |
| static void | drawKnob (QPainter *, const QPoint &pos, int width, const QBrush &, bool sunken) | 
A magnet needle for compass widgets.
A magnet needle points to two opposite directions indicating north and south.
The following colors are used:
| 
 | virtual | 
Draw the needle
| painter | Painter | 
| center | Center of the dial, start position for the needle | 
| length | Length of the needle | 
| direction | Direction of the needle, in degrees counter clockwise | 
| colorGroup | Color group, used for painting | 
Implements QwtDialNeedle.
| 
 | staticprotected | 
Draw a compass needle
| painter | Painter | 
| brush | Brush | 
| colorOffset | Color offset | 
| center | Center, where the needle starts | 
| length | Length of the needle | 
| width | Width of the needle | 
| direction | Direction | 
| 
 | static | 
Draw a compass needle
| painter | Painter | 
| palette | Palette | 
| colorGroup | Color group | 
| center | Center, where the needle starts | 
| length | Length of the needle | 
| direction | Direction | 
| 
 | static | 
Draw a compass needle
| painter | Painter | 
| palette | Palette | 
| colorGroup | Color group | 
| center | Center, where the needle starts | 
| length | Length of the needle | 
| direction | Direction | 
 1.8.1
 1.8.1