用于绘制标记的类更多...

#include <qwt_plot_marker.h>

类 QwtPlotMarker 继承关系图:

类
class	PrivateData

Public 类型
enum	LineStyle { NoLine , HLine , VLine , Cross }
	线条样式更多...

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 }
	运行时类型信息更多...

enum	ItemAttribute { Legend = 0x01 , AutoScale = 0x02 , Margins = 0x04 }
	绘图项属性更多...

enum	ItemInterest { ScaleInterest = 0x01 , LegendInterest = 0x02 }
	绘图项关注的事件类型更多...

enum	RenderHint { RenderAntialiased = 0x1 }
	渲染提示更多...

Public 成员函数
	QwtPlotMarker ()
	Constructor

	QwtPlotMarker (const QString &title)
	Constructor with title

	QwtPlotMarker (const QwtText &title)
	Constructor with QwtText title

virtual	~QwtPlotMarker ()
	Destructor

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

double	xValue () const
	Get the x-value

double	yValue () const
	Get the y-value

QPointF	value () const
	Get the value as a point

void	setXValue (double)
	Set the x-value

void	setYValue (double)
	Set the y-value

void	setValue (double, double)
	Set the value

void	setValue (const QPointF &)
	Set the value from a point

void	setLineStyle (LineStyle)
	Set the line style

LineStyle	lineStyle () const
	Get the line style

void	setLinePen (const QColor &, qreal width=0.0, Qt::PenStyle=Qt::SolidLine)
	Set the line pen

void	setLinePen (const QPen &)
	Set the line pen

const QPen &	linePen () const
	Get the line pen

void	setSymbol (const QwtSymbol *)
	Set the symbol

const QwtSymbol *	symbol () const
	Get the symbol

void	setLabel (const QwtText &)
	Set the label

QwtText	label () const
	Get the label

void	setLabelAlignment (Qt::Alignment)
	Set the label alignment

Qt::Alignment	labelAlignment () const
	Get the label alignment

void	setLabelOrientation (Qt::Orientation)
	Set the label orientation

Qt::Orientation	labelOrientation () const
	Get the label orientation

void	setSpacing (int)
	Set the spacing

int	spacing () const
	Get the spacing

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

virtual QRectF	boundingRect () const override
	Get the bounding rectangle

virtual QwtGraphic	legendIcon (int index, const QSizeF &) const override
	Get the legend icon

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

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

Protected 成员函数
virtual void	drawLines (QPainter *, const QRectF &, const QPointF &) const
	Draw the lines

virtual void	drawSymbol (QPainter *, const QRectF &, const QPointF &) const
	Draw the symbol

virtual void	drawLabel (QPainter *, const QRectF &, const QPointF &) const
	Draw the label

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

详细描述

用于绘制标记的类

成员枚举类型说明

◆ LineStyle

enum QwtPlotMarker::LineStyle

线条样式

枚举值
NoLine	No line
HLine	A horizontal line
VLine	A vertical line
Cross	A crosshair

构造及析构函数说明

◆ QwtPlotMarker() [1/3]

QwtPlotMarker::QwtPlotMarker ( )

explicit

Constructor

构造函数

◆ QwtPlotMarker() [2/3]

QwtPlotMarker::QwtPlotMarker ( const QString & title )

explicit

Constructor with title

QString标题的构造函数

◆ QwtPlotMarker() [3/3]

QwtPlotMarker::QwtPlotMarker ( const QwtText & title )

explicit

Constructor with QwtText title

QwtText标题的构造函数

◆ ~QwtPlotMarker()

QwtPlotMarker::~QwtPlotMarker ( )

virtual

Destructor

析构函数

成员函数说明

◆ boundingRect()

QRectF QwtPlotMarker::boundingRect ( ) const

overridevirtual

Get the bounding rectangle

获取边界矩形

重载 QwtPlotItem .

◆ draw()

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

overridevirtual

Draw the marker

绘制标记

实现了 QwtPlotItem.

◆ drawLabel()

void QwtPlotMarker::drawLabel	(	QPainter *	painter,
		const QRectF &	canvasRect,
		const QPointF &	pos
	)		const

protectedvirtual

Draw the label

Align and draw the text label of the marker

参数

painter	Painter
canvasRect	Contents rectangle of the canvas in painter coordinates
pos	Position of the marker, translated into widget coordinates

参见: drawLabel(), drawSymbol()

◆ drawLines()

void QwtPlotMarker::drawLines	(	QPainter *	painter,
		const QRectF &	canvasRect,
		const QPointF &	pos
	)		const

protectedvirtual

Draw the lines

Draw the lines marker

参数

painter	Painter
canvasRect	Contents rectangle of the canvas in painter coordinates
pos	Position of the marker, translated into widget coordinates

参见: drawLabel(), drawSymbol()

◆ drawSymbol()

void QwtPlotMarker::drawSymbol	(	QPainter *	painter,
		const QRectF &	canvasRect,
		const QPointF &	pos
	)		const

protectedvirtual

Draw the symbol

Draw the symbol of the marker

参数

painter	Painter
canvasRect	Contents rectangle of the canvas in painter coordinates
pos	Position of the marker, translated into widget coordinates

参见: drawLabel(), QwtSymbol::drawSymbol()

◆ label()

QwtText QwtPlotMarker::label ( ) const

Get the label

获取标签

◆ labelAlignment()

Qt::Alignment QwtPlotMarker::labelAlignment ( ) const

Get the label alignment

获取标签对齐方式

◆ labelOrientation()

Qt::Orientation QwtPlotMarker::labelOrientation ( ) const

Get the label orientation

获取标签方向

◆ legendIcon()

QwtGraphic QwtPlotMarker::legendIcon	(	int	index,
		const QSizeF &	size
	)		const

overridevirtual

Get the legend icon

获取图例上代表标记的图标

重载 QwtPlotItem .

◆ linePen()

const QPen & QwtPlotMarker::linePen ( ) const

Get the line pen

获取线条画笔

◆ lineStyle()

QwtPlotMarker::LineStyle QwtPlotMarker::lineStyle ( ) const

Get the line style

获取线条样式

◆ rtti()

int QwtPlotMarker::rtti ( ) const

overridevirtual

Get the runtime type information

获取运行时类型信息

重载 QwtPlotItem .

◆ setLabel()

void QwtPlotMarker::setLabel ( const QwtText & label )

Set the label

设置标签

◆ setLabelAlignment()

void QwtPlotMarker::setLabelAlignment ( Qt::Alignment align )

Set the label alignment

设置标签的对齐方式

◆ setLabelOrientation()

void QwtPlotMarker::setLabelOrientation ( Qt::Orientation orientation )

Set the label orientation

设置标签的方向

◆ setLinePen() [1/2]

void QwtPlotMarker::setLinePen	(	const QColor &	color,
		qreal	width = `0.0`,
		Qt::PenStyle	style = `Qt::SolidLine`
	)

Set the line pen

构建并分配线条画笔

◆ setLinePen() [2/2]

void QwtPlotMarker::setLinePen ( const QPen & pen )

Set the line pen

指定线条的画笔

◆ setLineStyle()

void QwtPlotMarker::setLineStyle ( LineStyle style )

Set the line style

设置线条样式

◆ setSpacing()

void QwtPlotMarker::setSpacing ( int spacing )

Set the spacing

设置间距

◆ setSymbol()

void QwtPlotMarker::setSymbol ( const QwtSymbol * symbol )

Set the symbol

分配符号

◆ setValue() [1/2]

void QwtPlotMarker::setValue ( const QPointF & pos )

Set the value from a point

从点设置值

◆ setValue() [2/2]

void QwtPlotMarker::setValue	(	double	x,
		double	y
	)

Set the value

设置值

◆ setXValue()

void QwtPlotMarker::setXValue ( double x )

Set the x-value

设置x值

◆ setYValue()

void QwtPlotMarker::setYValue ( double y )

Set the y-value

设置y值

◆ spacing()

int QwtPlotMarker::spacing ( ) const

Get the spacing

获取间距

◆ symbol()

const QwtSymbol * QwtPlotMarker::symbol ( ) const

Get the symbol

获取符号

◆ value()

QPointF QwtPlotMarker::value ( ) const

Get the value as a point

获取作为点的值

◆ xValue()

double QwtPlotMarker::xValue ( ) const

Get the x-value

获取x值

◆ yValue()

double QwtPlotMarker::yValue ( ) const

Get the y-value

获取y值

该类的文档由以下文件生成:

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

类

Public 类型

Public 成员函数

Protected 成员函数

详细描述

成员枚举类型说明

◆ LineStyle

构造及析构函数说明

◆ QwtPlotMarker() [1/3]

◆ QwtPlotMarker() [2/3]

◆ QwtPlotMarker() [3/3]

◆ ~QwtPlotMarker()

成员函数说明

◆ boundingRect()

◆ draw()

◆ drawLabel()

◆ drawLines()

◆ drawSymbol()

◆ label()

◆ labelAlignment()

◆ labelOrientation()

◆ legendIcon()

◆ linePen()

◆ lineStyle()

◆ rtti()

◆ setLabel()

◆ setLabelAlignment()

◆ setLabelOrientation()

◆ setLinePen() [1/2]

◆ setLinePen() [2/2]

◆ setLineStyle()

◆ setSpacing()

◆ setSymbol()

◆ setValue() [1/2]

◆ setValue() [2/2]

◆ setXValue()

◆ setYValue()

◆ spacing()

◆ symbol()

◆ value()

◆ xValue()

◆ yValue()