#include <qwt_polar_canvas.h>

Inheritance diagram for QwtPolarCanvas:

Classes
class	PrivateData

Public Types
enum	PaintAttribute { BackingStore = 0x01 }
	Paint attributes. More...

typedef QFlags< PaintAttribute >	PaintAttributes
	Paint attributes. More...

Public Member Functions
const QPixmap *	backingStore () const

void	invalidateBackingStore ()
	Invalidate the internal backing store. More...

QwtPointPolar	invTransform (const QPoint &) const

QwtPolarPlot *	plot ()

const QwtPolarPlot *	plot () const

	QwtPolarCanvas (QwtPolarPlot *)
	Constructor. More...

void	setPaintAttribute (PaintAttribute, bool on=true)
	Changing the paint attributes. More...

bool	testPaintAttribute (PaintAttribute) const

QPoint	transform (const QwtPointPolar &) const

virtual	~QwtPolarCanvas ()
	Destructor. More...

Protected Member Functions
virtual void	paintEvent (QPaintEvent *) QWT_OVERRIDE

virtual void	resizeEvent (QResizeEvent *) QWT_OVERRIDE

Private Attributes
PrivateData *	d_data

Detailed Description

Canvas of a QwtPolarPlot.

The canvas is the widget, where all polar items are painted to.

Note: In opposite to QwtPlot all axes are painted on the canvas.

See also: QwtPolarPlot

Definition at line 27 of file qwt_polar_canvas.h.

Member Typedef Documentation

typedef QFlags<PaintAttribute> QwtPolarCanvas::PaintAttributes

Paint attributes.

Definition at line 51 of file qwt_polar_canvas.h.

Member Enumeration Documentation

enum QwtPolarCanvas::PaintAttribute

Paint attributes.

The default setting enables BackingStore

See also: setPaintAttribute(), testPaintAttribute(), backingStore()

Enumerator
BackingStore	Paint double buffered and reuse the content of the pixmap buffer for some spontaneous repaints that happen when a plot gets unhidden, deiconified or changes the focus.

Definition at line 40 of file qwt_polar_canvas.h.

Constructor & Destructor Documentation

QwtPolarCanvas::QwtPolarCanvas ( QwtPolarPlot * plot )

explicit

Constructor.

Definition at line 77 of file qwt_polar_canvas.cpp.

QwtPolarCanvas::~QwtPolarCanvas ( )

virtual

Destructor.

Definition at line 91 of file qwt_polar_canvas.cpp.

Member Function Documentation

const QPixmap * QwtPolarCanvas::backingStore ( ) const

Returns: Backing store, might be null

Definition at line 170 of file qwt_polar_canvas.cpp.

void QwtPolarCanvas::invalidateBackingStore ( )

Invalidate the internal backing store.

Definition at line 176 of file qwt_polar_canvas.cpp.

QwtPointPolar QwtPolarCanvas::invTransform ( const QPoint & pos ) const

Translate a point from widget into plot coordinates

Parameters

pos	Point in widget coordinates of the plot canvas

Returns: Point in plot coordinates

See also: transform()

Definition at line 267 of file qwt_polar_canvas.cpp.

void QwtPolarCanvas::paintEvent ( QPaintEvent * event )

protectedvirtual

Paint event

Parameters

event Paint event

Definition at line 186 of file qwt_polar_canvas.cpp.

QwtPolarPlot * QwtPolarCanvas::plot ( )

Returns: Parent plot widget

Definition at line 97 of file qwt_polar_canvas.cpp.

const QwtPolarPlot * QwtPolarCanvas::plot ( ) const

Returns: Parent plot widget

Definition at line 103 of file qwt_polar_canvas.cpp.

void QwtPolarCanvas::resizeEvent ( QResizeEvent * event )

protectedvirtual

Resize event

Parameters

event Resize event

Definition at line 251 of file qwt_polar_canvas.cpp.

void QwtPolarCanvas::setPaintAttribute	(	PaintAttribute	attribute,
		bool	on = `true`
	)

Changing the paint attributes.

Parameters

attribute	Paint attribute
on	On/Off

The default setting enables BackingStore

See also: testPaintAttribute(), paintCache()

Definition at line 118 of file qwt_polar_canvas.cpp.

bool QwtPolarCanvas::testPaintAttribute ( PaintAttribute attribute ) const

Test wether a paint attribute is enabled

Parameters

attribute Paint attribute

Returns: true if the attribute is enabled

See also: setPaintAttribute()

Definition at line 164 of file qwt_polar_canvas.cpp.

QPoint QwtPolarCanvas::transform ( const QwtPointPolar & polarPos ) const

Translate a point from plot into widget coordinates

Parameters

polarPos Point in plot coordinates

Returns: Point in widget coordinates

See also: transform()

Definition at line 310 of file qwt_polar_canvas.cpp.

Member Data Documentation

PrivateData* QwtPolarCanvas::d_data

private

Definition at line 73 of file qwt_polar_canvas.h.

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

Classes

Public Types

Public Member Functions

Protected Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation