QwtCompassMagnetNeedle - A magnet needle for compass widgets.

NAME  SYNOPSIS  Public Types  Public Member Functions  Protected Member Functions  Detailed Description  Member Enumeration Documentation  enum QwtCompassMagnetNeedle::Style  Constructor & Destructor Documentation  QwtCompassMagnetNeedle::QwtCompassMagnetNeedle (Style style =TriangleStyle, const QColor & light = Qt::white, const QColor & dark =Qt::red)  Member Function Documentation  void QwtCompassMagnetNeedle::drawNeedle (QPainter * painter, double length,QPalette::ColorGroup colorGroup) const [override], [protected],[virtual]  Author 

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NAME

QwtCompassMagnetNeedle − A magnet needle for compass widgets.

SYNOPSIS

#include <qwt_dial_needle.h>

Inherits QwtDialNeedle.

Public Types

enum Style { TriangleStyle, ThinStyle }
Style of the needle.

Public Member Functions

QwtCompassMagnetNeedle (Style=TriangleStyle, const QColor &light=Qt::white, const QColor &dark=Qt::red)
Constructor.

Public Member Functions inherited from QwtDialNeedle

QwtDialNeedle ()
Constructor.
virtual ˜QwtDialNeedle ()
Destructor.
virtual void setPalette (const QPalette &)
const QPalette & palette () const
virtual void draw (QPainter *, const QPointF &center, double length, double direction, QPalette::ColorGroup=QPalette::Active) const

Protected Member Functions

virtual void drawNeedle (QPainter *, double length, QPalette::ColorGroup) const override

Protected Member Functions inherited from QwtDialNeedle

virtual void drawKnob (QPainter *, double width, const QBrush &, bool sunken) const
Draw the knob.

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:

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QPalette::Light

Used for pointing south

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QPalette::Dark

Used for pointing north

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QPalette::Base

Knob (ThinStyle only)

See also

QwtDial, QwtCompass

Definition at line 127 of file qwt_dial_needle.h.

Member Enumeration Documentation

enum QwtCompassMagnetNeedle::Style

Style of the needle.

Enumerator
TriangleStyle

A needle with a triangular shape.

ThinStyle

A thin needle.

Definition at line 131 of file qwt_dial_needle.h.

Constructor & Destructor Documentation

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

Constructor.

Definition at line 350 of file qwt_dial_needle.cpp.

Member Function Documentation

void QwtCompassMagnetNeedle::drawNeedle (QPainter * painter, double length,QPalette::ColorGroup colorGroup) const [override], [protected],[virtual]

Draw the needle

Parameters

painter Painter
length Length of the needle
colorGroup Color group, used for painting

Implements QwtDialNeedle.

Definition at line 369 of file qwt_dial_needle.cpp.

Author

Generated automatically by Doxygen for Qwt User’s Guide from the source code.

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