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QwtCompassMagnetNeedle Class Reference

Inheritance diagram for QwtCompassMagnetNeedle:

QwtDialNeedle List of all members.

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


Public Types

enum  Style {
  TriangleStyle,
  ThinStyle
}

Public Member Functions

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

Static Public Member Functions

void drawTriangleNeedle (QPainter *, const QColorGroup &, const QPoint &, int length, double direction)
void drawThinNeedle (QPainter *, const QColorGroup &, const QPoint &, int length, double direction)

Static Protected Member Functions

void drawPointer (QPainter *painter, const QBrush &brush, int colorOffset, const QPoint &center, int length, int width, double direction)


Constructor & Destructor Documentation

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

Constructor.


Member Function Documentation

void QwtCompassMagnetNeedle::draw QPainter *  painter,
const QPoint &  center,
int  length,
double  direction,
QPalette::ColorGroup  cg = 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
cg Color group, used for painting

Implements QwtDialNeedle.


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