Referencia de la Clase QwtAbstractScale

An abstract base class for classes containing a scale. Más...

#include <qwt_abstract_scale.h>

Diagrama de herencias de QwtAbstractScale

Lista de todos los miembros.

Clases
class	PrivateData
Métodos públicos
	QwtAbstractScale ()
virtual	~QwtAbstractScale ()
	Destructor.
void	setScale (double vmin, double vmax, double step=0.0)
	Specify a scale.
void	setScale (const QwtDoubleInterval &, double step=0.0)
	Specify a scale.
void	setScale (const QwtScaleDiv &s)
	Specify a scale.
void	setAutoScale ()
	Advise the widget to control the scale range internally.
bool	autoScale () const
void	setScaleMaxMajor (int ticks)
	Set the maximum number of major tick intervals.
int	scaleMaxMinor () const
void	setScaleMaxMinor (int ticks)
	Set the maximum number of minor tick intervals.
int	scaleMaxMajor () const
void	setScaleEngine (QwtScaleEngine *)
	Set a scale engine.
const QwtScaleEngine *	scaleEngine () const
QwtScaleEngine *	scaleEngine ()
const QwtScaleMap &	scaleMap () const
Métodos protegidos
void	rescale (double vmin, double vmax, double step=0.0)
void	setAbstractScaleDraw (QwtAbstractScaleDraw *)
	Set a scale draw.
const QwtAbstractScaleDraw *	abstractScaleDraw () const
QwtAbstractScaleDraw *	abstractScaleDraw ()
virtual void	scaleChange ()
	Notify changed scale.

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Descripción detallada

An abstract base class for classes containing a scale.

QwtAbstractScale is used to provide classes with a QwtScaleDraw, and a QwtScaleDiv. The QwtScaleDiv might be set explicitely or calculated by a QwtScaleEngine.

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Documentación del constructor y destructor

QwtAbstractScale::QwtAbstractScale

(

)

Constructor

Creates a default QwtScaleDraw and a QwtLinearScaleEngine. Autoscaling is enabled, and the stepSize is initialized by 0.0.

QwtAbstractScale::~QwtAbstractScale

(

)

[virtual]

Destructor.

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Documentación de las funciones miembro

const QwtAbstractScaleDraw * QwtAbstractScale::abstractScaleDraw

(

)

const [protected]

Devuelve:

Scale draw

Ver también:

setAbstractScaleDraw()

QwtAbstractScaleDraw * QwtAbstractScale::abstractScaleDraw

(

)

[protected]

Devuelve:

Scale draw

Ver también:

setAbstractScaleDraw()

bool QwtAbstractScale::autoScale

(

)

const

Devuelve:

true if autoscaling is enabled

void QwtAbstractScale::rescale	(	double	vmin,
		double	vmax,
		double	stepSize = 0.0
	)		[protected]

Recalculate the scale division and update the scale draw.

Parámetros:

vmin	Lower limit of the scale interval
vmax	Upper limit of the scale interval
stepSize	Major step size

Ver también:

scaleChange()

void QwtAbstractScale::scaleChange

(

)

[protected, virtual]

Notify changed scale.

Dummy empty implementation, intended to be overloaded by derived classes

Reimplementado en QwtSlider y QwtThermo.

const QwtScaleEngine * QwtAbstractScale::scaleEngine

(

)

const

Devuelve:

Scale engine

Ver también:

setScaleEngine()

QwtScaleEngine * QwtAbstractScale::scaleEngine

(

)

Devuelve:

Scale engine

Ver también:

setScaleEngine()

const QwtScaleMap & QwtAbstractScale::scaleMap

(

)

const

Devuelve:

abstractScaleDraw()->scaleMap()

int QwtAbstractScale::scaleMaxMajor

(

)

const

Devuelve:

Max. number of major tick intervals The default value is 5.

int QwtAbstractScale::scaleMaxMinor

(

)

const

Devuelve:

Max. number of minor tick intervals The default value is 3.

void QwtAbstractScale::setAbstractScaleDraw

(

QwtAbstractScaleDraw *

scaleDraw

)

[protected]

Set a scale draw.

scaleDraw has to be created with new and will be deleted in ~QwtAbstractScale or the next call of setAbstractScaleDraw.

void QwtAbstractScale::setAutoScale

(

)

Advise the widget to control the scale range internally.

Autoscaling is on by default.

Ver también:

setScale(), autoScale()

void QwtAbstractScale::setScale	(	double	vmin,
		double	vmax,
		double	stepSize = 0.0
	)

Specify a scale.

Disable autoscaling and define a scale by an interval and a step size

Parámetros:

vmin	lower limit of the scale interval
vmax	upper limit of the scale interval
stepSize	major step size

Ver también:

setAutoScale()

void QwtAbstractScale::setScale

(

const QwtScaleDiv &

scaleDiv

)

Specify a scale.

Disable autoscaling and define a scale by a scale division

Parámetros:

scaleDiv

Scale division

Ver también:

setAutoScale()

void QwtAbstractScale::setScale	(	const QwtDoubleInterval &	interval,
		double	stepSize = 0.0
	)

Specify a scale.

Disable autoscaling and define a scale by an interval and a step size

Parámetros:

interval	Interval
stepSize	major step size

Ver también:

setAutoScale()

void QwtAbstractScale::setScaleEngine

(

QwtScaleEngine *

scaleEngine

)

Set a scale engine.

The scale engine is responsible for calculating the scale division, and in case of auto scaling how to align the scale.

scaleEngine has to be created with new and will be deleted in ~QwtAbstractScale or the next call of setScaleEngine.

void QwtAbstractScale::setScaleMaxMajor

(

int

ticks

)

Set the maximum number of major tick intervals.

The scale's major ticks are calculated automatically such that the number of major intervals does not exceed ticks. The default value is 5.

Parámetros:

ticks

maximal number of major ticks.

Ver también:

QwtAbstractScaleDraw

void QwtAbstractScale::setScaleMaxMinor

(

int

ticks

)

Set the maximum number of minor tick intervals.

The scale's minor ticks are calculated automatically such that the number of minor intervals does not exceed ticks. The default value is 3.

Parámetros:

ticks

Ver también:

QwtAbstractScaleDraw

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

• src/qwt/src/qwt_abstract_scale.h
• src/qwt/src/qwt_abstract_scale.cpp