QwtCompassMagnetNeedle Class Reference

A magnet needle for compass widgets. More...

#include <qwt_dial_needle.h>

Inheritance diagram for QwtCompassMagnetNeedle:

Inheritance graph
[legend]

List of all members.

Public Types

enum  Style {
  TriangleStyle,
  ThinStyle
}

Public Member Functions

virtual void draw (QPainter *painter, const QPointF &center, double length, double direction, QPalette::ColorGroup=QPalette::Active) const
const QPalette & palette () const
 QwtCompassMagnetNeedle (Style=TriangleStyle, const QColor &light=Qt::white, const QColor &dark=Qt::red)
virtual void setPalette (const QPalette &)

Protected Member Functions

virtual void drawKnob (QPainter *, double width, const QBrush &, bool sunken) const
virtual void drawNeedle (QPainter *, double length, QPalette::ColorGroup) const


Detailed Description

A magnet needle for compass widgets.

A magnet needle points to two opposite directions indicating north and south.

The following colors are used:

See also:
QwtDial, QwtCompass

Member Enumeration Documentation

Style of the needle.

Enumerator:
TriangleStyle  A needle with a triangular shape.
ThinStyle  A thin needle.


Constructor & Destructor Documentation

QwtCompassMagnetNeedle::QwtCompassMagnetNeedle ( Style  style = TriangleStyle,
const QColor &  light = Qt::white,
const QColor &  dark = Qt::red 
)

Constructor.


Member Function Documentation

void QwtDialNeedle::draw ( QPainter *  painter,
const QPointF &  center,
double  length,
double  direction,
QPalette::ColorGroup  colorGroup = QPalette::Active 
) const [virtual, inherited]

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

void QwtDialNeedle::drawKnob ( QPainter *  painter,
double  width,
const QBrush &  brush,
bool  sunken 
) const [protected, virtual, inherited]

Draw the knob.

void QwtCompassMagnetNeedle::drawNeedle ( QPainter *  painter,
double  length,
QPalette::ColorGroup  colorGroup 
) const [protected, virtual]

Draw the needle

Parameters:
painter Painter
length Length of the needle
colorGroup Color group, used for painting

Implements QwtDialNeedle.

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


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