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Qwt User's Guide 6.0.0
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A magnet needle for compass widgets. More...
#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) | |
Protected Member Functions | |
| virtual void | drawNeedle (QPainter *, double length, QPalette::ColorGroup) const |
A magnet needle for compass widgets.
A magnet needle points to two opposite directions indicating north and south.
The following colors are used:
| QwtCompassMagnetNeedle::QwtCompassMagnetNeedle | ( | Style | style = TriangleStyle, |
| const QColor & | light = Qt::white, |
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| const QColor & | dark = Qt::red |
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| ) |
Constructor.
| void QwtCompassMagnetNeedle::drawNeedle | ( | QPainter * | painter, |
| double | length, | ||
| QPalette::ColorGroup | colorGroup | ||
| ) | const [protected, virtual] |
Draw the needle
| painter | Painter |
| length | Length of the needle |
| colorGroup | Color group, used for painting |
Implements QwtDialNeedle.
1.7.3