SYNOPSIS

#include <qwt_dial_needle.h>

Inherits QwtDialNeedle.

Public Types

enum Style { Arrow, Ray }

Public Member Functions

virtual void draw (QPainter *, const QPoint &, int 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 (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)

Static Protected Member Functions

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

Member Enumeration Documentation

enum QwtDialSimpleNeedle::Style

Style of the needle.

Constructor & Destructor Documentation

QwtDialSimpleNeedle::QwtDialSimpleNeedle (Stylestyle, boolhasKnob = 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, intlength, doubledirection, QPalette::ColorGroupcolorGroup = 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::ColorGroupcolorGroup, const QPoint &center, intlength, intwidth, doubledirection, boolhasKnob) [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 QwtDialNeedle::drawKnob (QPainter *painter, const QPoint &pos, intwidth, const QBrush &brush, boolsunken) [static, protected, inherited]

Draw the knob.

void QwtDialSimpleNeedle::drawRayNeedle (QPainter *painter, const QPalette &palette, QPalette::ColorGroupcolorGroup, const QPoint &center, intlength, intwidth, doubledirection, boolhasKnob) [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

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 (intwidth)Set the width of the needle

Parameters:

width Width

See also:

width()

int QwtDialSimpleNeedle::width () constReturns:

the width of the needle

See also:

setWidth()

Author

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