QwtPolarPanner provides panning of a polar plot canvas. More...

#include <qwt_polar_panner.h>

Inheritance diagram for QwtPolarPanner:

Public Slots
virtual void	movePlot (int dx, int dy)

Public Member Functions
QwtPolarCanvas *	canvas ()

const QwtPolarCanvas *	canvas () const

QwtPolarPlot *	plot ()

const QwtPolarPlot *	plot () const

	QwtPolarPanner (QwtPolarCanvas *)
	Create a plot panner for a polar plot canvas. More...

virtual	~QwtPolarPanner ()
	Destructor. More...

Public Member Functions inherited from QwtPanner
const QCursor	cursor () const

virtual bool	eventFilter (QObject , QEvent ) QWT_OVERRIDE
	Event filter. More...

void	getAbortKey (int &key, Qt::KeyboardModifiers &) const
	Get the abort key and modifiers. More...

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

bool	isEnabled () const

bool	isOrientationEnabled (Qt::Orientation) const

Qt::Orientations	orientations () const
	Return the orientation, where paning is enabled. More...

	QwtPanner (QWidget *parent)

void	setAbortKey (int key, Qt::KeyboardModifiers=Qt::NoModifier)

void	setCursor (const QCursor &)

void	setEnabled (bool)
	En/disable the panner. More...

void	setMouseButton (Qt::MouseButton, Qt::KeyboardModifiers=Qt::NoModifier)

void	setOrientations (Qt::Orientations)

virtual	~QwtPanner ()
	Destructor. More...

Protected Member Functions
virtual void	widgetMousePressEvent (QMouseEvent *) QWT_OVERRIDE

Protected Member Functions inherited from QwtPanner
virtual QBitmap	contentsMask () const
	Calculate a mask for the contents of the panned widget. More...

virtual QPixmap	grab () const

virtual void	paintEvent (QPaintEvent *) QWT_OVERRIDE
	Paint event. More...

virtual void	widgetKeyPressEvent (QKeyEvent *)

virtual void	widgetKeyReleaseEvent (QKeyEvent *)

virtual void	widgetMouseMoveEvent (QMouseEvent *)

virtual void	widgetMouseReleaseEvent (QMouseEvent *)

Additional Inherited Members
Signals inherited from QwtPanner
void	moved (int dx, int dy)

void	panned (int dx, int dy)

Detailed Description

QwtPolarPanner provides panning of a polar plot canvas.

QwtPolarPanner is a panner for a QwtPolarCanvas, that adjusts the visible area after dropping the canvas on its new position.

Together with QwtPolarMagnifier individual ways of navigating on a QwtPolarPlot widget can be implemented easily.

See also: QwtPolarMagnifier

Definition at line 30 of file qwt_polar_panner.h.

Constructor & Destructor Documentation

QwtPolarPanner::QwtPolarPanner ( QwtPolarCanvas * canvas )

explicit

Create a plot panner for a polar plot canvas.

Definition at line 16 of file qwt_polar_panner.cpp.

QwtPolarPanner::~QwtPolarPanner ( )

virtual

Destructor.

Definition at line 24 of file qwt_polar_panner.cpp.

Member Function Documentation

QwtPolarCanvas * QwtPolarPanner::canvas ( )

Returns: observed plot canvas

Definition at line 29 of file qwt_polar_panner.cpp.

const QwtPolarCanvas * QwtPolarPanner::canvas ( ) const

Returns: observed plot canvas

Definition at line 35 of file qwt_polar_panner.cpp.

void QwtPolarPanner::movePlot	(	int	dx,
		int	dy
	)

virtualslot

Adjust the zoomed area according to dx/dy

Parameters

dx	Pixel offset in x direction
dy	Pixel offset in y direction

See also: QwtPanner::panned(), QwtPolarPlot::zoom()

Definition at line 68 of file qwt_polar_panner.cpp.

QwtPolarPlot * QwtPolarPanner::plot ( )

Returns: observed plot

Definition at line 41 of file qwt_polar_panner.cpp.

const QwtPolarPlot * QwtPolarPanner::plot ( ) const

Returns: observed plot

Definition at line 51 of file qwt_polar_panner.cpp.

void QwtPolarPanner::widgetMousePressEvent ( QMouseEvent * event )

protectedvirtual

Block panning when the plot zoom factor is >= 1.0.

Parameters

event Mouse event

Reimplemented from QwtPanner.

Definition at line 108 of file qwt_polar_panner.cpp.

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

Public Slots

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation