QwtPlotSvgItem Class Reference

#include <qwt_plot_svgitem.h>

Inheritance diagram for QwtPlotSvgItem:

List of all members.

Public Member Functions
	QwtPlotSvgItem (const QString &title=QString::null)
	QwtPlotSvgItem (const QwtText &title)
virtual	~QwtPlotSvgItem ()
virtual QRectF	boundingRect () const
virtual void	draw (QPainter *p, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &rect) const
bool	loadData (const QRectF &, const QByteArray &)
bool	loadFile (const QRectF &, const QString &fileName)
virtual int	rtti () const
Public Member Functions inherited from QwtPlotItem
	QwtPlotItem (const QwtText &title=QwtText())
virtual	~QwtPlotItem ()
void	attach (QwtPlot *plot)
void	detach ()
void	hide ()
bool	isVisible () const
virtual void	itemChanged ()
virtual QWidget *	legendItem () const
QRectF	paintRect (const QwtScaleMap &, const QwtScaleMap &) const
QwtPlot *	plot () const
QRectF	scaleRect (const QwtScaleMap &, const QwtScaleMap &) const
void	setAxes (int xAxis, int yAxis)
void	setItemAttribute (ItemAttribute, bool on=true)
void	setRenderHint (RenderHint, bool on=true)
void	setTitle (const QString &title)
void	setTitle (const QwtText &title)
virtual void	setVisible (bool)
void	setXAxis (int axis)
void	setYAxis (int axis)
void	setZ (double z)
void	show ()
bool	testItemAttribute (ItemAttribute) const
bool	testRenderHint (RenderHint) const
const QwtText &	title () const
virtual void	updateLegend (QwtLegend *) const
virtual void	updateScaleDiv (const QwtScaleDiv &, const QwtScaleDiv &)
int	xAxis () const
int	yAxis () const
double	z () const
Public Member Functions inherited from QwtLegendItemManager
	QwtLegendItemManager ()
virtual	~QwtLegendItemManager ()
virtual void	drawLegendIdentifier (QPainter *, const QRectF &) const

Protected Member Functions
void	render (QPainter *painter, const QRectF &viewBox, const QRectF &rect) const
const QSvgRenderer &	renderer () const
QSvgRenderer &	renderer ()
QRectF	viewBox (const QRectF &area) const

Additional Inherited Members
Public Types inherited from QwtPlotItem
enum	ItemAttribute {   Legend = 0x01,   AutoScale = 0x02 }
typedef QFlags< ItemAttribute >	ItemAttributes
enum	RenderHint { RenderAntialiased = 1 }
typedef QFlags< RenderHint >	RenderHints
enum	RttiValues {   Rtti_PlotItem = 0,   Rtti_PlotGrid,   Rtti_PlotScale,   Rtti_PlotMarker,   Rtti_PlotCurve,   Rtti_PlotSpectroCurve,   Rtti_PlotIntervalCurve,   Rtti_PlotHistogram,   Rtti_PlotSpectrogram,   Rtti_PlotSVG,   Rtti_PlotUserItem = 1000 }

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Detailed Description

A plot item, which displays data in Scalable Vector Graphics (SVG) format.

SVG images are often used to display maps

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Constructor & Destructor Documentation

QwtPlotSvgItem::QwtPlotSvgItem ( const QString &  title = QString::null )

explicit

Constructor.

Sets the following item attributes:

• QwtPlotItem::AutoScale: true
• QwtPlotItem::Legend: false

Parameters:

title

Title

QwtPlotSvgItem::QwtPlotSvgItem ( const QwtText &  title )

explicit

Constructor.

Sets the following item attributes:

• QwtPlotItem::AutoScale: true
• QwtPlotItem::Legend: false

Parameters:

title

Title

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Member Function Documentation

void QwtPlotSvgItem::draw ( QPainter *  painter, const QwtScaleMap &  xMap, const QwtScaleMap &  yMap, const QRectF &  canvasRect  ) const

virtual

Draw the SVG item

Parameters:

painter	Painter
xMap	X-Scale Map
yMap	Y-Scale Map
canvasRect	Contents rect of the plot canvas

Implements QwtPlotItem.

bool QwtPlotSvgItem::loadData	(	const QRectF &	rect,
		const QByteArray &	data
	)

Load SVG data

Parameters:

rect	Bounding rectangle
data	in SVG format

Returns:

true, if the SVG data could be loaded

bool QwtPlotSvgItem::loadFile	(	const QRectF &	rect,
		const QString &	fileName
	)

Load a SVG file

Parameters:

rect	Bounding rectangle
fileName	SVG file name

Returns:

true, if the SVG file could be loaded

void QwtPlotSvgItem::render ( QPainter *  painter, const QRectF &  viewBox, const QRectF &  rect  ) const

protected

Render the SVG data

Parameters:

painter	Painter
viewBox	View Box, see QSvgRenderer::viewBox
rect	Traget rectangle on the paint device

const QSvgRenderer & QwtPlotSvgItem::renderer ( ) const

protected

Returns:

Renderer used to render the SVG data

QSvgRenderer & QwtPlotSvgItem::renderer ( )

protected

Returns:

Renderer used to render the SVG data

int QwtPlotSvgItem::rtti ( ) const

virtual

Returns:

QwtPlotItem::Rtti_PlotSVG

Reimplemented from QwtPlotItem.

QRectF QwtPlotSvgItem::viewBox ( const QRectF &  rect ) const

protected

Calculate the viewBox from an rect and boundingRect().

Parameters:

rect	Rectangle in scale coordinates

Returns:

viewBox View Box, see QSvgRenderer::viewBox