QwtPolarMagnifier provides zooming, by magnifying in steps. More...

#include <qwt_polar_magnifier.h>

Inheritance diagram for QwtPolarMagnifier:

Classes
class	PrivateData

Public Slots
virtual void	rescale (double factor) override
	Rescale the plot.

void	unzoom ()
	Unzoom the plot.

Public Member Functions
	QwtPolarMagnifier (QwtPolarCanvas *)
	Constructor.

virtual	~QwtPolarMagnifier ()
	Destructor.

void	setUnzoomKey (int key, int modifiers)
	Set the unzoom key.

void	getUnzoomKey (int &key, int &modifiers) const
	Get the unzoom key.

QwtPolarPlot *	plot ()
	Get the plot.

const QwtPolarPlot *	plot () const
	Get the plot (const version)

QwtPolarCanvas *	canvas ()
	Get the canvas.

const QwtPolarCanvas *	canvas () const
	Get the canvas (const version)

Public Member Functions inherited from QwtMagnifier
	QwtMagnifier (QWidget *)
	Constructor.

virtual	~QwtMagnifier ()
	Destructor .

QWidget *	parentWidget ()
	Return the parent widget where the rescaling happens.

const QWidget *	parentWidget () const
	Return the parent widget where the rescaling happens.

void	setEnabled (bool)
	En/disable the magnifier.

bool	isEnabled () const
	Return whether the magnifier is enabled.

void	setMouseFactor (double)
	Change the mouse factor.

double	mouseFactor () const
	Return the mouse factor.

void	setMouseButton (Qt::MouseButton, Qt::KeyboardModifiers=Qt::NoModifier)
	Assign the mouse button that is used for zooming in/out.

void	getMouseButton (Qt::MouseButton &, Qt::KeyboardModifiers &) const
	Get the mouse button and modifiers used for zooming.

void	setWheelFactor (double)
	Change the wheel factor.

double	wheelFactor () const
	Return the wheel factor.

void	setWheelModifiers (Qt::KeyboardModifiers)
	Assign keyboard modifiers for zooming in/out using the wheel.

Qt::KeyboardModifiers	wheelModifiers () const
	Return the wheel modifiers.

void	setKeyFactor (double)
	Change the key factor.

double	keyFactor () const
	Return the key factor.

void	setZoomInKey (int key, Qt::KeyboardModifiers=Qt::NoModifier)
	Assign the key that is used for zooming in.

void	getZoomInKey (int &key, Qt::KeyboardModifiers &) const
	Retrieve the settings of the zoom in key.

void	setZoomOutKey (int key, Qt::KeyboardModifiers=Qt::NoModifier)
	Assign the key that is used for zooming out.

void	getZoomOutKey (int &key, Qt::KeyboardModifiers &) const
	Retrieve the settings of the zoom out key.

virtual bool	eventFilter (QObject , QEvent ) override
	Event filter.

Protected Member Functions
virtual void	widgetKeyPressEvent (QKeyEvent *) override
	Handle key press events.

Protected Member Functions inherited from QwtMagnifier
virtual void	rescale (double factor)=0
	Rescale the parent widget.

virtual void	widgetMousePressEvent (QMouseEvent *)
	Handle a mouse press event for the observed widget.

virtual void	widgetMouseReleaseEvent (QMouseEvent *)
	Handle a mouse release event for the observed widget.

virtual void	widgetMouseMoveEvent (QMouseEvent *)
	Handle a mouse move event for the observed widget.

virtual void	widgetWheelEvent (QWheelEvent *)
	Handle a wheel event for the observed widget.

virtual void	widgetKeyReleaseEvent (QKeyEvent *)
	Handle a key release event for the observed widget.

Detailed Description

QwtPolarMagnifier provides zooming, by magnifying in steps.

Constructor & Destructor Documentation

◆ QwtPolarMagnifier()

QwtPolarMagnifier::QwtPolarMagnifier ( QwtPolarCanvas * canvas )

explicit

Constructor.

◆ ~QwtPolarMagnifier()

QwtPolarMagnifier::~QwtPolarMagnifier ( )

virtual

Destructor.

Destructor

.

Member Function Documentation

◆ canvas() [1/2]

QwtPolarCanvas * QwtPolarMagnifier::canvas ( )

Get the canvas.

Get the observed plot canvas.

◆ canvas() [2/2]

const QwtPolarCanvas * QwtPolarMagnifier::canvas ( ) const

Get the canvas (const version)

Get the observed plot canvas (const version)

◆ getUnzoomKey()

void QwtPolarMagnifier::getUnzoomKey	(	int &	key,
		int &	modifiers
	)		const

Get the unzoom key.

Get the key and modifiers that are used for unzooming.

◆ plot() [1/2]

QwtPolarPlot * QwtPolarMagnifier::plot ( )

Get the plot.

Get the observed plot.

◆ plot() [2/2]

const QwtPolarPlot * QwtPolarMagnifier::plot ( ) const

Get the plot (const version)

Get the observed plot (const version)

◆ rescale

void QwtPolarMagnifier::rescale ( double factor )

overridevirtualslot

Rescale the plot.

Zoom in/out the zoomed area.

◆ setUnzoomKey()

void QwtPolarMagnifier::setUnzoomKey	(	int	key,
		int	modifiers
	)

Set the unzoom key.

Assign key and modifiers that are used for unzooming.

◆ unzoom

void QwtPolarMagnifier::unzoom ( )

slot

Unzoom the plot.

Unzoom the plot widget

.

◆ widgetKeyPressEvent()

void QwtPolarMagnifier::widgetKeyPressEvent ( QKeyEvent * event )

overrideprotectedvirtual

Handle key press events.

Handle a key press event for the observed widget.

Parameters

event Key event

Reimplemented from QwtMagnifier.

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

/home/runner/work/QWT/QWT/src/plot/qwt_polar_magnifier.h
/home/runner/work/QWT/QWT/src/plot/qwt_polar_magnifier.cpp

Classes

Public Slots

Public Member Functions

Protected Member Functions