QwtDialSimpleNeedle Class Reference

#include <qwt_dial_needle.h>

Inheritance diagram for QwtDialSimpleNeedle:

List of all members.

Public Types
enum	Style {   Arrow,   Ray }
Public Member Functions
virtual void	draw (QPainter *painter, const QPointF &center, double length, double direction, QPalette::ColorGroup=QPalette::Active) const
const QPalette &	palette () const
	QwtDialSimpleNeedle (Style, bool hasKnob=true, const QColor &mid=Qt::gray, const QColor &base=Qt::darkGray)
virtual void	setPalette (const QPalette &)
void	setWidth (double width)
double	width () const
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

A needle for dial widgets.

The following colors are used:

• QPalette::Mid
  Pointer
• QPalette::Base
  Knob

See also:

QwtDial, QwtCompass

---

Member Enumeration Documentation

enum QwtDialSimpleNeedle::Style

Style of the needle.

Enumerator:

Arrow	Arrow.
Ray	A straight line from the center.

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Constructor & Destructor Documentation

QwtDialSimpleNeedle::QwtDialSimpleNeedle	(	Style	style,
		bool	hasKnob = true,
		const QColor &	mid = Qt::gray,
		const QColor &	base = Qt::darkGray
	)

Constructor

Parameters:

style	Style
hasKnob	With/Without knob
mid	Middle color
base	Base color

---

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 QwtDialSimpleNeedle::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

void QwtDialSimpleNeedle::setWidth

(

double

width

)

Set the width of the needle

Parameters:

width

Width

See also:

width()

double QwtDialSimpleNeedle::width

(

)

const

Returns:

the width of the needle

See also:

setWidth()