Qwt User's Guide 5.2.2
Public Types | Public Member Functions | Static Public Member Functions | Static Protected Member Functions

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 *, const QPoint &, int 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 &)

Static Public Member Functions

static void drawStyle1Needle (QPainter *, const QPalette &, QPalette::ColorGroup, const QPoint &, int length, double direction)
static void drawStyle2Needle (QPainter *, const QPalette &, QPalette::ColorGroup, const QPoint &, int length, double direction)

Static Protected Member Functions

static void drawKnob (QPainter *, const QPoint &pos, int width, const QBrush &, bool sunken)

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.


Constructor & Destructor Documentation

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

Constructor

Parameters:
styleArrow style
lightLight color
darkDark color

Member Function Documentation

void QwtCompassWindArrow::draw ( QPainter *  painter,
const QPoint &  center,
int  length,
double  direction,
QPalette::ColorGroup  colorGroup = QPalette::Active 
) const [virtual]

Draw the needle

Parameters:
painterPainter
centerCenter of the dial, start position for the needle
lengthLength of the needle
directionDirection of the needle, in degrees counter clockwise
colorGroupColor group, used for painting

Implements QwtDialNeedle.

void QwtDialNeedle::drawKnob ( QPainter *  painter,
const QPoint &  pos,
int  width,
const QBrush &  brush,
bool  sunken 
) [static, protected, inherited]

Draw the knob.

void QwtCompassWindArrow::drawStyle1Needle ( QPainter *  painter,
const QPalette &  palette,
QPalette::ColorGroup  colorGroup,
const QPoint &  center,
int  length,
double  direction 
) [static]

Draw a compass needle

Parameters:
painterPainter
palettePalette
colorGroupcolorGroup
centerCenter of the dial, start position for the needle
lengthLength of the needle
directionDirection of the needle, in degrees counter clockwise
void QwtCompassWindArrow::drawStyle2Needle ( QPainter *  painter,
const QPalette &  palette,
QPalette::ColorGroup  colorGroup,
const QPoint &  center,
int  length,
double  direction 
) [static]

Draw a compass needle

Parameters:
painterPainter
palettePalette
colorGroupcolorGroup
centerCenter of the dial, start position for the needle
lengthLength of the needle
directionDirection of the needle, in degrees counter clockwise
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:
paletteNew Palette