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QwtDialSimpleNeedle(3) Qwt User's Guide QwtDialSimpleNeedle(3)

NAME

QwtDialSimpleNeedle -
A needle for dial widgets.
 

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 () const Returns:

the width of the needle
See also:
setWidth()
 
 

Author

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Mon Aug 1 2011 Version 5.2.2