QwtPlotSvgItem Class Reference

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

#include <qwt_plot_svgitem.h>

Inheritance diagram for QwtPlotSvgItem:

Public Member Functions
	QwtPlotSvgItem (const QString &title=QString())
	Constructor.
	QwtPlotSvgItem (const QwtText &title)
	Constructor.
virtual	~QwtPlotSvgItem ()
	Destructor.
bool	loadFile (const QRectF &, const QString &fileName)
bool	loadData (const QRectF &, const QByteArray &)
Public Member Functions inherited from QwtPlotGraphicItem
	QwtPlotGraphicItem (const QString &title=QString())
	Constructor.
	QwtPlotGraphicItem (const QwtText &title)
	Constructor.
virtual	~QwtPlotGraphicItem ()
	Destructor.
void	setGraphic (const QRectF &rect, const QwtGraphic &)
QwtGraphic	graphic () const
virtual QRectF	boundingRect () const override
	Bounding rectangle of the item.
virtual void	draw (QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect) const override
virtual int	rtti () const override
Public Member Functions inherited from QwtPlotItem
	QwtPlotItem ()
	QwtPlotItem (const QString &title)
	QwtPlotItem (const QwtText &title)
virtual	~QwtPlotItem ()
	Destroy the QwtPlotItem.
void	attach (QwtPlot *plot)
	Attach the item to a plot.
void	detach ()
	This method detaches a QwtPlotItem from any QwtPlot it has been associated with.
QwtPlot *	plot () const
	Return attached plot.
void	setTitle (const QString &title)
void	setTitle (const QwtText &title)
const QwtText &	title () const
void	setItemAttribute (ItemAttribute, bool on=true)
bool	testItemAttribute (ItemAttribute) const
void	setItemInterest (ItemInterest, bool on=true)
bool	testItemInterest (ItemInterest) const
void	setRenderHint (RenderHint, bool on=true)
bool	testRenderHint (RenderHint) const
void	setRenderThreadCount (uint numThreads)
uint	renderThreadCount () const
void	setLegendIconSize (const QSize &)
QSize	legendIconSize () const
double	z () const
void	setZ (double z)
	Set the z value.
void	show ()
	Show the item.
void	hide ()
	Hide the item.
virtual void	setVisible (bool)
bool	isVisible () const
void	setAxes (QwtAxisId xAxis, QwtAxisId yAxis)
void	setXAxis (QwtAxisId)
QwtAxisId	xAxis () const
	Return xAxis.
void	setYAxis (QwtAxisId)
QwtAxisId	yAxis () const
	Return yAxis.
virtual void	itemChanged ()
virtual void	legendChanged ()
virtual void	getCanvasMarginHint (const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, double &left, double &top, double &right, double &bottom) const
	Calculate a hint for the canvas margin.
virtual void	updateScaleDiv (const QwtScaleDiv &, const QwtScaleDiv &)
	Update the item to changes of the axes scale division.
virtual void	updateLegend (const QwtPlotItem *, const QList< QwtLegendData > &)
	Update the item to changes of the legend info.
QRectF	scaleRect (const QwtScaleMap &, const QwtScaleMap &) const
	Calculate the bounding scale rectangle of 2 maps.
QRectF	paintRect (const QwtScaleMap &, const QwtScaleMap &) const
	Calculate the bounding paint rectangle of 2 maps.
virtual QList< QwtLegendData >	legendData () const
	Return all information, that is needed to represent the item on the legend.
virtual QwtGraphic	legendIcon (int index, const QSizeF &) const

Additional Inherited Members
Public Types inherited from QwtPlotItem
enum	RttiValues {   Rtti_PlotItem = 0 , Rtti_PlotGrid , Rtti_PlotScale , Rtti_PlotLegend ,   Rtti_PlotMarker , Rtti_PlotCurve , Rtti_PlotSpectroCurve , Rtti_PlotIntervalCurve ,   Rtti_PlotHistogram , Rtti_PlotSpectrogram , Rtti_PlotGraphic , Rtti_PlotTradingCurve ,   Rtti_PlotBarChart , Rtti_PlotMultiBarChart , Rtti_PlotShape , Rtti_PlotTextLabel ,   Rtti_PlotZone , Rtti_PlotVectorField , Rtti_PlotUserItem = 1000 }
	Runtime type information. More...
enum	ItemAttribute { Legend = 0x01 , AutoScale = 0x02 , Margins = 0x04 }
	Plot Item Attributes. More...
enum	ItemInterest { ScaleInterest = 0x01 , LegendInterest = 0x02 }
	Plot Item Interests. More...
enum	RenderHint { RenderAntialiased = 0x1 }
	Render hints. More...
typedef QFlags< ItemAttribute >	ItemAttributes
typedef QFlags< ItemInterest >	ItemInterests
typedef QFlags< RenderHint >	RenderHints
Protected Member Functions inherited from QwtPlotItem
QwtGraphic	defaultIcon (const QBrush &, const QSizeF &) const
	Return a default icon from a brush.

Detailed Description

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

SVG images are often used to display maps

QwtPlotSvgItem is only a small convenience wrapper class for QwtPlotGraphicItem, that creates a QwtGraphic from SVG data.

Definition at line 28 of file qwt_plot_svgitem.h.

Constructor & Destructor Documentation

QwtPlotSvgItem() [1/2]

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

explicit

Constructor.

Parameters

title

Title

Definition at line 20 of file qwt_plot_svgitem.cpp.

QwtPlotSvgItem() [2/2]

QwtPlotSvgItem::QwtPlotSvgItem ( const QwtText & title )

explicit

Constructor.

Parameters

title

Title

Definition at line 29 of file qwt_plot_svgitem.cpp.

~QwtPlotSvgItem()

QwtPlotSvgItem::~QwtPlotSvgItem ( )

virtual

Destructor.

Definition at line 35 of file qwt_plot_svgitem.cpp.

Member Function Documentation

loadData()

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

Definition at line 74 of file qwt_plot_svgitem.cpp.

loadFile()

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

Definition at line 47 of file qwt_plot_svgitem.cpp.