QwtCompassMagnetNeedle - Man Page

A magnet needle for compass widgets.

Synopsis

#include <qwt_dial_needle.h>

Inherits QwtDialNeedle.

Public Types

enum Style { TriangleStyle, ThinStyle }
Style of the needle.

Public Member Functions

QwtCompassMagnetNeedle (Style=TriangleStyle, const QColor &light=Qt::white, const QColor &dark=Qt::red)
Constructor.

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:

See also

QwtDial, QwtCompass

Member Enumeration Documentation

enum QwtCompassMagnetNeedle::Style

Style of the needle.

Enumerator

TriangleStyle

A needle with a triangular shape.

ThinStyle

A thin needle.

Member Function Documentation

void QwtCompassMagnetNeedle::drawNeedle (QPainter * painter, double length, QPalette::ColorGroup colorGroup) const [protected], [virtual]

Draw the needle

Parameters

painter Painter
length Length of the needle
colorGroup Color group, used for painting

Implements QwtDialNeedle.

Author

Generated automatically by Doxygen for Qwt User's Guide from the source code.

Info

Mon Jun 1 2020 Version 6.1.5 Qwt User's Guide