A magnet needle for compass widgets. More...

#include <qwt_dial_needle.h>

Inheritance diagram for QwtCompassMagnetNeedle:

Public Types
enum	Style { TriangleStyle, ThinStyle }
	Style of the needle. More...

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

Public Member Functions inherited from QwtDialNeedle
virtual void	draw (QPainter *, const QPointF &center, double length, double direction, QPalette::ColorGroup=QPalette::Active) const

const QPalette &	palette () const

	QwtDialNeedle ()
	Constructor. More...

virtual void	setPalette (const QPalette &)

virtual	~QwtDialNeedle ()
	Destructor. More...

Protected Member Functions
virtual void	drawNeedle (QPainter *, double length, QPalette::ColorGroup) const QWT_OVERRIDE

Protected Member Functions inherited from QwtDialNeedle
virtual void	drawKnob (QPainter *, double width, const QBrush &, bool sunken) const
	Draw the knob. More...

Private Attributes
Style	m_style

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:

QPalette::Light
Used for pointing south
QPalette::Dark
Used for pointing north
QPalette::Base
Knob (ThinStyle only)

See also: QwtDial, QwtCompass

Definition at line 127 of file qwt_dial_needle.h.

Member Enumeration Documentation

◆ Style

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::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

◆ drawNeedle()

void QwtCompassMagnetNeedle::drawNeedle	(	QPainter *	painter,
		double	length,
		QPalette::ColorGroup	colorGroup
	)		const

protectedvirtual

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.

Member Data Documentation

◆ m_style

Style QwtCompassMagnetNeedle::m_style

private

Definition at line 148 of file qwt_dial_needle.h.

The documentation for this class was generated from the following files:

Public Types

Public Member Functions

Protected Member Functions

Private Attributes