man QwtCompassMagnetNeedle (Fonctions bibliothèques) -

NAME

QwtCompassMagnetNeedle -

SYNOPSIS

Inherits QwtDialNeedle.

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:

â€¢: QColorGroup::Light

Used for pointing south
â€¢: QColorGroup::Dark

Used for pointing north
â€¢: QColorGroup::Base

Knob (ThinStyle only)

See also: QwtDial, QwtCompass

Definition at line 123 of file qwt_dial_needle.h.

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.

Definition at line 268 of file qwt_dial_needle.cpp.

References QwtDialNeedle::setPalette().

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.

Definition at line 295 of file qwt_dial_needle.cpp.

References QwtDialNeedle::colorGroup(), drawThinNeedle(), and drawTriangleNeedle().

void QwtCompassMagnetNeedle::drawPointer (QPainter * painter, const QBrush & brush, int colorOffset, const QPoint & center, int length, int width, double direction) [static, protected]

Draw a compass needle Definition at line 394 of file qwt_dial_needle.cpp.

Referenced by drawThinNeedle().

void QwtCompassMagnetNeedle::drawThinNeedle (QPainter * painter, const QColorGroup & cg, const QPoint & center, int length, double direction) [static]

Draw a compass needle Definition at line 369 of file qwt_dial_needle.cpp.

References QwtDialNeedle::drawKnob(), and drawPointer().

Referenced by draw().

void QwtCompassMagnetNeedle::drawTriangleNeedle (QPainter * painter, const QColorGroup & cg, const QPoint & center, int length, double direction) [static]

Draw a compass needle Definition at line 313 of file qwt_dial_needle.cpp.