Qwt User's Guide: QwtCompassWindArrow Class Reference

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QwtCompassWindArrow Class Reference

An indicator for the wind direction. More...

#include <qwt_dial_needle.h>

Inheritance diagram for QwtCompassWindArrow:
[legend]

List of all members.

Public Types

enum  Style {
  Style1,
  Style2
}

Public Member Functions

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

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)

Detailed Description

An indicator for the wind direction.

QwtCompassWindArrow shows the direction where the wind comes from.

  • QColorGroup::Light
    Used for Style1, or the light half of Style2
  • QColorGroup::Dark
    Used for the dark half of Style2
See also:
QwtDial, QwtCompass

Member Enumeration Documentation

enum QwtCompassWindArrow::Style

Style of the arrow.

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

Draw a compass needle

Parameters:
painter Painter
palette Palette
colorGroup colorGroup
center Center of the dial, start position for the needle
length Length of the needle
direction Direction 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:
painter Painter
palette Palette
colorGroup colorGroup
center Center of the dial, start position for the needle
length Length of the needle
direction Direction of the needle, in degrees counter clockwise
Generated on Wed Sep 2 18:37:23 2009 for Qwt User's Guide by  doxygen 1.6.1
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