QwtCompassWindArrow (3) Linux Manual Page

QwtCompassWindArrow –

An indicator for the wind direction.

Synopsis

#include <qwt_dial_needle.h>

Inherits QwtDialNeedle.

Public Types

enum Style { Style1, Style2 }
Style of the arrow.

Public Member Functions

QwtCompassWindArrow (Style, const QColor &light=Qt::white, const QColor &dark=Qt::gray)

Protected Member Functions

virtual void drawNeedle (QPainter *, double length, QPalette::ColorGroup) const

Detailed Description

An indicator for the wind direction.

QwtCompassWindArrow shows the direction where the wind comes from.

•

QPalette::Light

Used for Style1, or the light half of Style2

•

QPalette::Dark

Used for the dark half of Style2

See Also:

QwtDial, QwtCompass

Member Enumeration Documentation

enum `QwtCompassWindArrow::Style`

Style of the arrow.

Enumerator

Style1: A needle pointing to the center.
Style2: A needle pointing to the center.

Constructor & Destructor Documentation

QwtCompassWindArrow::QwtCompassWindArrow (`Style`style, const QColor &light = Qt::white, const QColor &dark = Qt::gray)

Constructor

Parameters:

style Arrow style
light Light color
dark Dark color

Member Function Documentation

void QwtCompassWindArrow::drawNeedle (QPainter *painter, doublelength, QPalette::ColorGroupcolorGroup) const [protected], [virtual]

Draw the needle

Parameters:

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

Implements QwtDialNeedle.

Author

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