Referencia de la Clase QwtMagnifier

QwtMagnifier provides zooming, by magnifying in steps. Más...

#include <qwt_magnifier.h>

Diagrama de herencias de QwtMagnifier

Lista de todos los miembros.

Clases
class	PrivateData
Métodos públicos
	QwtMagnifier (QWidget *)
virtual	~QwtMagnifier ()
	Destructor.
QWidget *	parentWidget ()
const QWidget *	parentWidget () const
void	setEnabled (bool)
	En/disable the magnifier.
bool	isEnabled () const
void	setMouseFactor (double)
	Change the mouse factor.
double	mouseFactor () const
void	setMouseButton (int button, int buttonState=Qt::NoButton)
void	getMouseButton (int &button, int &buttonState) const
void	setWheelFactor (double)
	Change the wheel factor.
double	wheelFactor () const
void	setWheelButtonState (int buttonState)
int	wheelButtonState () const
void	setKeyFactor (double)
	Change the key factor.
double	keyFactor () const
void	setZoomInKey (int key, int modifiers)
void	getZoomInKey (int &key, int &modifiers) const
void	setZoomOutKey (int key, int modifiers)
void	getZoomOutKey (int &key, int &modifiers) const
virtual bool	eventFilter (QObject *, QEvent *)
	Event filter.
Métodos protegidos
virtual void	rescale (double factor)=0
virtual void	widgetMousePressEvent (QMouseEvent *)
virtual void	widgetMouseReleaseEvent (QMouseEvent *)
virtual void	widgetMouseMoveEvent (QMouseEvent *)
virtual void	widgetWheelEvent (QWheelEvent *)
virtual void	widgetKeyPressEvent (QKeyEvent *)
virtual void	widgetKeyReleaseEvent (QKeyEvent *)

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Descripción detallada

QwtMagnifier provides zooming, by magnifying in steps.

Using QwtMagnifier a plot can be zoomed in/out in steps using keys, the mouse wheel or moving a mouse button in vertical direction.

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Documentación del constructor y destructor

QwtMagnifier::QwtMagnifier

(

QWidget *

parent

)

[explicit]

Constructor

Parámetros:

parent

Widget to be magnified

QwtMagnifier::~QwtMagnifier

(

)

[virtual]

Destructor.

---

Documentación de las funciones miembro

bool QwtMagnifier::eventFilter	(	QObject *	o,
		QEvent *	e
	)		[virtual]

Event filter.

When isEnabled() the mouse events of the observed widget are filtered.

Ver también:

widgetMousePressEvent(), widgetMouseReleaseEvent(), widgetMouseMoveEvent(), widgetWheelEvent(), widgetKeyPressEvent() widgetKeyReleaseEvent()

Reimplementado de QObject.

void QwtMagnifier::getMouseButton	(	int &	button,
		int &	buttonState
	)		const

Ver también:

setMouseButton

void QwtMagnifier::getZoomInKey	(	int &	key,
		int &	modifiers
	)		const

Ver también:

setZoomInKey

void QwtMagnifier::getZoomOutKey	(	int &	key,
		int &	modifiers
	)		const

Ver también:

setZoomOutKey

bool QwtMagnifier::isEnabled

(

)

const

Devuelve:

true when enabled, false otherwise

Ver también:

setEnabled, eventFilter()

double QwtMagnifier::keyFactor

(

)

const

Devuelve:

Key factor

Ver también:

setKeyFactor()

double QwtMagnifier::mouseFactor

(

)

const

Devuelve:

Mouse factor

Ver también:

setMouseFactor()

QWidget * QwtMagnifier::parentWidget

(

)

const QWidget * QwtMagnifier::parentWidget

(

)

const

virtual void QwtMagnifier::rescale

(

double

factor

)

[protected, pure virtual]

Implementado en QwtPlotMagnifier.

void QwtMagnifier::setEnabled

(

bool

on

)

En/disable the magnifier.

When enabled is true an event filter is installed for the observed widget, otherwise the event filter is removed.

Parámetros:

on	true or false

Ver también:

isEnabled(), eventFilter()

void QwtMagnifier::setKeyFactor

(

double

factor

)

Change the key factor.

The key factor defines the ratio between the current range on the parent widget and the zoomed range for each key press of the zoom in/out keys. The default value is 0.9.

Parámetros:

factor

Key factor

Ver también:

keyFactor(), setZoomInKey(), setZoomOutKey(), setWheelFactor, setMouseFactor()

void QwtMagnifier::setMouseButton	(	int	button,
		int	buttonState = Qt::NoButton
	)

Assign the mouse button, that is used for zooming in/out. The default value is Qt::RightButton.

Parámetros:

button	Button
buttonState	Button state

Ver también:

getMouseButton

void QwtMagnifier::setMouseFactor

(

double

factor

)

Change the mouse factor.

The mouse factor defines the ratio between the current range on the parent widget and the zoomed range for each vertical mouse movement. The default value is 0.95.

Parámetros:

factor

Wheel factor

Ver también:

mouseFactor(), setMouseButton(), setWheelFactor(), setKeyFactor()

void QwtMagnifier::setWheelButtonState

(

int

buttonState

)

Assign a mandatory button state for zooming in/out using the wheel. The default button state is Qt::NoButton.

Parámetros:

buttonState

Button state

Ver también:

wheelButtonState

void QwtMagnifier::setWheelFactor

(

double

factor

)

Change the wheel factor.

The wheel factor defines the ratio between the current range on the parent widget and the zoomed range for each step of the wheel. The default value is 0.9.

Parámetros:

factor

Wheel factor

Ver también:

wheelFactor(), setWheelButtonState(), setMouseFactor(), setKeyFactor()

void QwtMagnifier::setZoomInKey	(	int	key,
		int	modifiers
	)

Assign the key, that is used for zooming in. The default combination is Qt::Key_Plus + Qt::NoModifier.

Parámetros:

key
modifiers

Ver también:

getZoomInKey(), setZoomOutKey()

void QwtMagnifier::setZoomOutKey	(	int	key,
		int	modifiers
	)

Assign the key, that is used for zooming out. The default combination is Qt::Key_Minus + Qt::NoModifier.

Parámetros:

key
modifiers

Ver también:

getZoomOutKey(), setZoomOutKey()

int QwtMagnifier::wheelButtonState

(

)

const

Devuelve:

Wheel button state

Ver también:

setWheelButtonState

double QwtMagnifier::wheelFactor

(

)

const

Devuelve:

Wheel factor

Ver también:

setWheelFactor()

void QwtMagnifier::widgetKeyPressEvent

(

QKeyEvent *

ke

)

[protected, virtual]

Handle a key press event for the observed widget.

Parámetros:

ke

Key event

Ver también:

eventFilter(), widgetKeyReleaseEvent()

void QwtMagnifier::widgetKeyReleaseEvent

(

QKeyEvent *

)

[protected, virtual]

Handle a key release event for the observed widget.

Parámetros:

ke

Key event

Ver también:

eventFilter(), widgetKeyReleaseEvent()

void QwtMagnifier::widgetMouseMoveEvent

(

QMouseEvent *

me

)

[protected, virtual]

Handle a mouse move event for the observed widget.

Parámetros:

me	Mouse event

Ver también:

eventFilter(), widgetMousePressEvent(), widgetMouseReleaseEvent(),

void QwtMagnifier::widgetMousePressEvent

(

QMouseEvent *

me

)

[protected, virtual]

Handle a mouse press event for the observed widget.

Parámetros:

me	Mouse event

Ver también:

eventFilter(), widgetMouseReleaseEvent(), widgetMouseMoveEvent()

void QwtMagnifier::widgetMouseReleaseEvent

(

QMouseEvent *

)

[protected, virtual]

Handle a mouse release event for the observed widget.

Ver también:

eventFilter(), widgetMousePressEvent(), widgetMouseMoveEvent(),

void QwtMagnifier::widgetWheelEvent

(

QWheelEvent *

we

)

[protected, virtual]

Handle a wheel event for the observed widget.

Parámetros:

we	Wheel event

Ver también:

eventFilter()

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

• src/qwt/src/qwt_magnifier.h
• src/qwt/src/qwt_magnifier.cpp