QwtCompassWindArrow Class Reference

An indicator for the wind direction. More...

#include <qwt_dial_needle.h>

Inheritance diagram for QwtCompassWindArrow:

Inheritance graph
[legend]

List of all members.

Public Types

enum  Style {
  Style1,
  Style2
}

Public Member Functions

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

An indicator for the wind direction.

QwtCompassWindArrow shows the direction where the wind comes from.

See also:
QwtDial, QwtCompass

Member Enumeration Documentation

Style of the arrow.

Enumerator:
Style1  A needle pointing to the center.
Style2  A needle pointing to the center.


Constructor & Destructor Documentation

QwtCompassWindArrow::QwtCompassWindArrow ( Style  style,
const QColor &  light = Qt::white,
const QColor &  dark = Qt::gray 
)

Constructor

Parameters:
style Arrow style
light Light color
dark Dark color


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 QwtCompassWindArrow::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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