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

#include <qwt_plot_svgitem.h>

类 QwtPlotSvgItem 继承关系图:

Public 成员函数
	QwtPlotSvgItem (const QString &title=QString())
	Constructor

	QwtPlotSvgItem (const QwtText &title)
	Constructor

	~QwtPlotSvgItem () override
	Destructor

bool	loadFile (const QRectF &, const QString &fileName)
	Load an SVG file

bool	loadData (const QRectF &, const QByteArray &)
	Load SVG data

Public 成员函数继承自 QwtPlotGraphicItem
	QwtPlotGraphicItem (const QString &title=QString())
	Constructor

	QwtPlotGraphicItem (const QwtText &title)
	Constructor with QwtText title

	~QwtPlotGraphicItem () override
	Destructor

void	setGraphic (const QRectF &rect, const QwtGraphic &)
	Set graphic with its bounding rectangle

QwtGraphic	graphic () const
	Get graphic

virtual QRectF	boundingRect () const override
	Get the bounding rectangle

virtual void	draw (QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect) const override
	Draw the graphic

virtual int	rtti () const override
	Get the runtime type information

Public 成员函数继承自 QwtPlotItem
	QwtPlotItem ()
	Default constructor

	QwtPlotItem (const QString &title)
	Constructor with title as QString

	QwtPlotItem (const QwtText &title)
	Constructor with title as QwtText

virtual	~QwtPlotItem ()
	Destructor

virtual void	attach (QwtPlot *plot)
	Attach the item to a plot

void	detach ()
	Detach the item from the plot

QwtPlot *	plot () const
	Get the plot the item is attached to

void	setTitle (const QString &title)
	Set the title using a QString

void	setTitle (const QwtText &title)
	Set the title using a QwtText

const QwtText &	title () const
	Get the title

void	setItemAttribute (ItemAttribute, bool on=true)
	Set an item attribute

bool	testItemAttribute (ItemAttribute) const
	Test an item attribute

void	setItemInterest (ItemInterest, bool on=true)
	Set an item interest

bool	testItemInterest (ItemInterest) const
	Test an item interest

void	setRenderHint (RenderHint, bool on=true)
	Set a render hint

bool	testRenderHint (RenderHint) const
	Test a render hint

void	setRenderThreadCount (uint numThreads)
	Set the number of render threads

uint	renderThreadCount () const
	Get the number of render threads

void	setLegendIconSize (const QSize &)
	Set the legend icon size

QSize	legendIconSize () const
	Get the legend icon size

double	z () const
	Get the z-value

void	setZ (double z)
	Set the z-value

void	show ()
	Show the item

void	hide ()
	Hide the item

virtual void	setVisible (bool)
	Set the visibility

bool	isVisible () const
	Check if the item is visible

void	setAxes (QwtAxisId xAxis, QwtAxisId yAxis)
	Set both axes

void	setXAxis (QwtAxisId)
	Set the x-axis

QwtAxisId	xAxis () const
	Get the x-axis

void	setYAxis (QwtAxisId)
	Set the y-axis

QwtAxisId	yAxis () const
	Get the y-axis

virtual void	itemChanged ()
	Notify the plot that the item has changed

virtual void	legendChanged ()
	Notify the item that the legend has changed

virtual void	getCanvasMarginHint (const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, double &left, double &top, double &right, double &bottom) const
	Get margin hints for the canvas

virtual void	updateScaleDiv (const QwtScaleDiv &, const QwtScaleDiv &)
	Update the item with new scale divisions

virtual void	updateLegend (const QwtPlotItem *, const QList< QwtLegendData > &)
	Update the item with changes of the legend

QRectF	scaleRect (const QwtScaleMap &, const QwtScaleMap &) const
	Calculate the scale rectangle

QRectF	paintRect (const QwtScaleMap &, const QwtScaleMap &) const
	Calculate the paint rectangle

virtual QList< QwtLegendData >	legendData () const
	Return legend data

virtual QwtGraphic	legendIcon (int index, const QSizeF &) const
	Return a legend icon

额外继承的成员函数
Public 类型继承自 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_PlotArrowMarker , Rtti_PlotBoxChart , Rtti_PlotUserItem = 1000 }
	Runtime type information 更多...

enum	ItemAttribute { Legend = 0x01 , AutoScale = 0x02 , Margins = 0x04 }
	Plot Item Attributes 更多...

enum	ItemInterest { ScaleInterest = 0x01 , LegendInterest = 0x02 }
	Plot Item Interests 更多...

enum	RenderHint { RenderAntialiased = 0x1 }
	Render hints 更多...

Protected 成员函数继承自 QwtPlotItem
QwtGraphic	defaultIcon (const QBrush &, const QSizeF &) const
	Create a default icon

详细描述

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.

构造及析构函数说明

◆ QwtPlotSvgItem() [1/2]

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

explicit

Constructor

参数

[in] title Title

◆ QwtPlotSvgItem() [2/2]

QwtPlotSvgItem::QwtPlotSvgItem ( const QwtText & title )

explicit

Constructor

参数

[in] title Title

成员函数说明

◆ loadData()

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

Load SVG data

参数

[in]	rect	Bounding rectangle
[in]	data	Data in SVG format

返回: true, if the SVG data could be loaded

◆ loadFile()

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

Load an SVG file

参数

[in]	rect	Bounding rectangle
[in]	fileName	SVG file name

返回: true, if the SVG file could be loaded

该类的文档由以下文件生成:

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

Public 成员函数

额外继承的成员函数

详细描述

构造及析构函数说明

◆ QwtPlotSvgItem() [1/2]

◆ QwtPlotSvgItem() [2/2]

成员函数说明

◆ loadData()

◆ loadFile()