QwtCompassWindArrow Class Reference

An indicator for the wind direction. More...

#include <qwt_dial_needle.h>

Inheritance diagram for QwtCompassWindArrow:

Public Types
enum	Style { Style1, Style2 }
	Style of the arrow. More...

Public Member Functions
	QwtCompassWindArrow (Style, const QColor &light=Qt::white, const QColor &dark=Qt::gray)
Public Member Functions inherited from QwtDialNeedle
	QwtDialNeedle ()
	Constructor.
virtual	~QwtDialNeedle ()
	Destructor.
virtual void	setPalette (const QPalette &)
const QPalette &	palette () const
virtual void	draw (QPainter *painter, const QPointF &center, double length, double direction, QPalette::ColorGroup=QPalette::Active) const

Protected Member Functions
virtual void	drawNeedle (QPainter *, double length, QPalette::ColorGroup) const
Protected Member Functions inherited from QwtDialNeedle
virtual void	drawKnob (QPainter *, double width, const QBrush &, bool sunken) const
	Draw the knob.

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, double  length, QPalette::ColorGroup  colorGroup  ) const

protectedvirtual

Draw the needle

Parameters

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

Implements QwtDialNeedle.