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
	QwtDialSimpleNeedle (Style, bool hasKnob=true, const QColor &mid=Qt::gray, const QColor &base=Qt::darkGray)
virtual void	draw (QPainter *, const QPoint &, int length, double direction, QPalette::ColorGroup=QPalette::Active) const
void	setWidth (int width)
int	width () const
Public Member Functions inherited from QwtDialNeedle
	QwtDialNeedle ()
virtual	~QwtDialNeedle ()
const QPalette &	palette () const
virtual void	setPalette (const QPalette &)

Static Public Member Functions
static void	drawArrowNeedle (QPainter *, const QPalette &, QPalette::ColorGroup, const QPoint &, int length, int width, double direction, bool hasKnob)
static void	drawRayNeedle (QPainter *, const QPalette &, QPalette::ColorGroup, const QPoint &, int length, int width, double direction, bool hasKnob)

Additional Inherited Members
Static Protected Member Functions inherited from QwtDialNeedle
static void	drawKnob (QPainter *, const QPoint &pos, int width, const QBrush &, bool sunken)

---

Detailed Description

A needle for dial widgets.

The following colors are used:

• QColorGroup::Mid
  Pointer
• QColorGroup::base
  Knob

See also:

QwtDial, QwtCompass

---

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::draw ( QPainter *  painter, const QPoint &  center, int  length, double  direction, QPalette::ColorGroup  colorGroup = QPalette::Active  ) const

virtual

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 QwtDialSimpleNeedle::drawArrowNeedle ( QPainter *  painter, const QPalette &  palette, QPalette::ColorGroup  colorGroup, const QPoint &  center, int  length, int  width, double  direction, bool  hasKnob  )

static

Draw a needle looking like an arrow

Parameters:

painter	Painter
palette	Palette
colorGroup	Color group
center	center of the needle
length	Length of the needle
width	Width of the needle
direction	Current Direction
hasKnob	With/Without knob

void QwtDialSimpleNeedle::drawRayNeedle ( QPainter *  painter, const QPalette &  palette, QPalette::ColorGroup  colorGroup, const QPoint &  center, int  length, int  width, double  direction, bool  hasKnob  )

static

Draw a needle looking like a ray

Parameters:

painter	Painter
palette	Palette
colorGroup	Color group
center	center of the needle
length	Length of the needle
width	Width of the needle
direction	Current Direction
hasKnob	With/Without knob

void QwtDialSimpleNeedle::setWidth

(

int

width

)

Set the width of the needle

Parameters:

width

Width

See also:

width()

int QwtDialSimpleNeedle::width

(

)

const

Returns:

the width of the needle

See also:

setWidth()