QwtDialSimpleNeedle (3)

#include <qwt_dial_needle.h>

Inherits QwtDialNeedle.

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

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

A needle for dial widgets.

The following colors are used:

• QColorGroup::Mid

  Pointer

• QColorGroup::base

  Knob

See also:

QwtDial, QwtCompass

QwtDialSimpleNeedle::QwtDialSimpleNeedle (\fBStyle\fPstyle, boolhasKnob = \fCtrue\fP, const QColor &mid = \fCQt::gray\fP, const QColor &base = \fCQt::darkGray\fP)

Constructor

Parameters:

style Style

hasKnob With/Without knob

mid Middle color

base Base color

void QwtDialSimpleNeedle::draw (QPainter *painter, const QPoint ¢er, intlength, doubledirection, QPalette::ColorGroupcolorGroup = \fCQPalette::Active\fP) const\fC [virtual]\fP

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::ColorGroupcolorGroup, const QPoint ¢er, intlength, intwidth, doubledirection, boolhasKnob)\fC [static]\fP

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::ColorGroupcolorGroup, const QPoint ¢er, intlength, intwidth, doubledirection, boolhasKnob)\fC [static]\fP

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 (intwidth)

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()

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