Referencia de la Clase QwtCompass

A Compass Widget. Más...

#include <qwt_compass.h>

Diagrama de herencias de QwtCompass

Lista de todos los miembros.

Clases
class	PrivateData
Métodos públicos
	QwtCompass (QWidget *parent=NULL)
	Constructor.
	QwtCompass (QWidget *parent, const char *name)
	Constructor.
virtual	~QwtCompass ()
	Destructor.
void	setRose (QwtCompassRose *rose)
const QwtCompassRose *	rose () const
QwtCompassRose *	rose ()
const QMap< double, QString > &	labelMap () const
QMap< double, QString > &	labelMap ()
void	setLabelMap (const QMap< double, QString > &map)
	Set a map, mapping values to labels.
Métodos protegidos
virtual QwtText	scaleLabel (double value) const
virtual void	drawRose (QPainter *, const QPoint &center, int radius, double north, QPalette::ColorGroup) const
virtual void	drawScaleContents (QPainter *, const QPoint &center, int radius) const
	Draw the contents of the scale.
virtual void	keyPressEvent (QKeyEvent *)

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Descripción detallada

A Compass Widget.

QwtCompass is a widget to display and enter directions. It consists of a scale, an optional needle and rose.

Nota:

The examples/dials example shows how to use QwtCompass.

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Documentación del constructor y destructor

QwtCompass::QwtCompass

(

QWidget *

parent = NULL

)

[explicit]

Constructor.

Parámetros:

parent

Parent widget

Create a compass widget with a scale, no needle and no rose. The default origin is 270.0 with no valid value. It accepts mouse and keyboard inputs and has no step size. The default mode is QwtDial::RotateNeedle.

QwtCompass::QwtCompass	(	QWidget *	parent,
		const char *	name
	)		[explicit]

Constructor.

Parámetros:

parent	Parent widget
name	Object name

Create a compass widget with a scale, no needle and no rose. The default origin is 270.0 with no valid value. It accepts mouse and keyboard inputs and has no step size. The default mode is QwtDial::RotateNeedle.

QwtCompass::~QwtCompass

(

)

[virtual]

Destructor.

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Documentación de las funciones miembro

void QwtCompass::drawRose	(	QPainter *	painter,
		const QPoint &	center,
		int	radius,
		double	north,
		QPalette::ColorGroup	cg
	)		const [protected, virtual]

Draw the compass rose

Parámetros:

painter	Painter
center	Center of the compass
radius	of the circle, where to paint the rose
north	Direction pointing north, in degrees counter clockwise
cg	Color group

void QwtCompass::drawScaleContents	(	QPainter *	painter,
		const QPoint &	center,
		int	radius
	)		const [protected, virtual]

Draw the contents of the scale.

Reimplementado de QwtDial.

void QwtCompass::keyPressEvent

(

QKeyEvent *

kev

)

[protected, virtual]

Handles key events

Beside the keys described in QwtDial::keyPressEvent numbers from 1-9 (without 5) set the direction according to their position on the num pad.

Ver también:

isReadOnly()

Reimplementado de QwtDial.

QMap< double, QString > & QwtCompass::labelMap

(

)

Devuelve:

map, mapping values to labels

Ver también:

setLabelMap()

const QMap< double, QString > & QwtCompass::labelMap

(

)

const

Devuelve:

map, mapping values to labels

Ver también:

setLabelMap()

const QwtCompassRose * QwtCompass::rose

(

)

const

Devuelve:

rose

Ver también:

setRose()

QwtCompassRose * QwtCompass::rose

(

)

Devuelve:

rose

Ver también:

setRose()

QwtText QwtCompass::scaleLabel

(

double

value

)

const [protected, virtual]

Map a value to a corresponding label

Parámetros:

value

Value that will be mapped

Devuelve:

Label, or QString::null

label() looks in a map for a corresponding label for value or return an null text.

Ver también:

labelMap(), setLabelMap()

Reimplementado de QwtDial.

void QwtCompass::setLabelMap

(

const QMap< double, QString > &

map

)

Set a map, mapping values to labels.

Parámetros:

map	value to label map

The values of the major ticks are found by looking into this map. The default map consists of the labels N, NE, E, SE, S, SW, W, NW.

Atención:

The map will have no effect for values that are no major tick values. Major ticks can be changed by QwtScaleDraw::setScale

Ver también:

labelMap(), scaleDraw(), setScale()

void QwtCompass::setRose

(

QwtCompassRose *

rose

)

Set a rose for the compass

Parámetros:

rose	Compass rose

Atención:

The rose will be deleted, when a different rose is set or in ~QwtCompass

Ver también:

rose()

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La documentación para esta clase fue generada a partir de los siguientes ficheros:

• src/qwt/src/qwt_compass.h
• src/qwt/src/qwt_compass.cpp