QwtCompassWindArrow Class Reference

#include <qwt_dial_needle.h>

Inherits QwtDialNeedle.

List of all members.

Public Types
enum	Style {   Style1,   Style2 }
Public Member Functions
virtual void	draw (QPainter *painter, const QPointF &center, double length, double direction, QPalette::ColorGroup=QPalette::Active) const
const QPalette &	palette () const
	QwtCompassWindArrow (Style, const QColor &light=Qt::white, const QColor &dark=Qt::gray)
virtual void	setPalette (const QPalette &)
Protected Member Functions
virtual void	drawKnob (QPainter *, double width, const QBrush &, bool sunken) const
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.

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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

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Member Function Documentation

void QwtDialNeedle::draw	(	QPainter *	painter,
		const QPointF &	center,
		double	length,
		double	direction,
		QPalette::ColorGroup	colorGroup = QPalette::Active
	)		const [virtual, inherited]

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

void QwtDialNeedle::drawKnob	(	QPainter *	painter,
		double	width,
		const QBrush &	brush,
		bool	sunken
	)		const [protected, virtual, inherited]

Draw the knob.

void QwtCompassWindArrow::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.

const QPalette & QwtDialNeedle::palette

(

)

const [inherited]

Returns:

the palette of the needle.

void QwtDialNeedle::setPalette

(

const QPalette &

palette

)

[virtual, inherited]

Sets the palette for the needle.

Parameters:

palette

New Palette