NAME¶

QwtCompassMagnetNeedle - A magnet needle for compass widgets.

SYNOPSIS¶

#include <qwt_dial_needle.h> Inherits QwtDialNeedle.

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

Detailed Description¶

A magnet needle for compass widgets. A magnet needle points to two opposite directions indicating north and south. The following colors are used:

•

QPalette::Light

 

Used for pointing south

•

QPalette::Dark

 

Used for pointing north

•

QPalette::Base

 

Knob (ThinStyle only)

See also:

Member Enumeration Documentation¶

enum QwtCompassMagnetNeedle::Style¶

Style of the needle. Enumerator:

TriangleStyle

A needle with a triangular shape.

ThinStyle

A thin needle.

Constructor & Destructor Documentation¶

QwtCompassMagnetNeedle::QwtCompassMagnetNeedle (Stylestyle = TriangleStyle, const QColor &light = Qt::white, const QColor &dark = Qt::red)¶

Constructor.

Member Function Documentation¶

void QwtCompassMagnetNeedle::drawNeedle (QPainter *painter, doublelength, QPalette::ColorGroupcolorGroup) const [protected, virtual] Draw the needle¶

Parameters: Implements QwtDialNeedle.

Author¶

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