QwtDialSimpleNeedle Class Reference

A needle for dial widgets. More...

#include <qwt_dial_needle.h>

Inheritance diagram for QwtDialSimpleNeedle:

Public Types
enum	Style { Arrow, Ray }
	Style of the needle. More...

Public Member Functions
	QwtDialSimpleNeedle (Style, bool hasKnob=true, const QColor &mid=Qt::gray, const QColor &base=Qt::darkGray)
void	setWidth (double width)
double	width () const
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

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.

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 QwtDialSimpleNeedle::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.

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()