QwtCompassWindArrow (3)

#include <qwt_dial_needle.h>

Inherits QwtDialNeedle.

Public Types

enum Style { Style1, Style2 }

Public Member Functions

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

virtual void draw (QPainter *, const QPoint &, int length, double direction, QPalette::ColorGroup=QPalette::Active) const

Static Public Member Functions

static void drawStyle1Needle (QPainter *, const QPalette &, QPalette::ColorGroup, const QPoint &, int length, double direction)

static void drawStyle2Needle (QPainter *, const QPalette &, QPalette::ColorGroup, const QPoint &, int length, double direction)

Additional Inherited Members

An indicator for the wind direction.

QwtCompassWindArrow shows the direction where the wind comes from.

• QColorGroup::Light

  Used for Style1, or the light half of Style2

• QColorGroup::Dark

  Used for the dark half of Style2

See also:

QwtDial, QwtCompass

QwtCompassWindArrow::QwtCompassWindArrow (\fBStyle\fPstyle, const QColor &light = \fCQt::white\fP, const QColor &dark = \fCQt::gray\fP)

Constructor

Parameters:

style Arrow style

light Light color

dark Dark color

void QwtCompassWindArrow::draw (QPainter *painter, const QPoint ¢er, intlength, doubledirection, QPalette::ColorGroupcolorGroup = \fCQPalette::Active\fP) const\fC [virtual]\fP

Draw the needle

Parameters:

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.

void QwtCompassWindArrow::drawStyle1Needle (QPainter *painter, const QPalette &palette, QPalette::ColorGroupcolorGroup, const QPoint ¢er, intlength, doubledirection)\fC [static]\fP

Draw a compass needle

Parameters:

painter Painter

palette Palette

colorGroup colorGroup

center Center of the dial, start position for the needle

length Length of the needle

direction Direction of the needle, in degrees counter clockwise

void QwtCompassWindArrow::drawStyle2Needle (QPainter *painter, const QPalette &palette, QPalette::ColorGroupcolorGroup, const QPoint ¢er, intlength, doubledirection)\fC [static]\fP

Draw a compass needle

Parameters:

painter Painter

palette Palette

colorGroup colorGroup

center Center of the dial, start position for the needle

length Length of the needle

direction Direction of the needle, in degrees counter clockwise

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