QwtCompassWindArrow - Man Page
Name
QwtCompassWindArrow —
An indicator for the wind direction.
Synopsis
#include <qwt_dial_needle.h>
Inherits QwtDialNeedle.
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.
- 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 (Stylestyle, 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 ¢er, 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 QwtDialNeedle::drawKnob (QPainter *painter, const QPoint &pos, intwidth, const QBrush &brush, boolsunken) [static, protected, inherited]
Draw the knob.
void QwtCompassWindArrow::drawStyle1Needle (QPainter *painter, const QPalette &palette, QPalette::ColorGroupcolorGroup, const QPoint ¢er, intlength, doubledirection) [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::ColorGroupcolorGroup, const QPoint ¢er, intlength, doubledirection) [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
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
Author
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