在绘图画布内绘制刻度的类更多...

#include <qwt_plot_scaleitem.h>

类 QwtPlotScaleItem 继承关系图:

类
class	PrivateData

Public 成员函数
	QwtPlotScaleItem (QwtScaleDraw::Alignment=QwtScaleDraw::BottomScale, const double pos=0.0)
	在位置 pos 处的刻度项构造函数

virtual	~QwtPlotScaleItem ()
	析构函数

virtual int	rtti () const override
	获取运行时类型信息

void	setScaleDiv (const QwtScaleDiv &)
	分配刻度划分

const QwtScaleDiv &	scaleDiv () const
	获取刻度划分

void	setScaleDivFromAxis (bool on)
	启用/禁用刻度划分与对应轴的同步

bool	isScaleDivFromAxis () const
	检查刻度划分与对应轴的同步是否启用

void	setPalette (const QPalette &)
	设置调色板

QPalette	palette () const
	获取调色板

void	setFont (const QFont &)
	更改刻度标签字体

QFont	font () const
	获取刻度标签字体

void	setScaleDraw (QwtScaleDraw *)
	设置刻度绘制器

const QwtScaleDraw *	scaleDraw () const
	获取刻度绘制器（const版本）

QwtScaleDraw *	scaleDraw ()
	获取刻度绘制器

void	setPosition (double pos)
	更改刻度的位置

double	position () const
	获取刻度的位置

void	setBorderDistance (int)
	将刻度对齐到画布

int	borderDistance () const
	获取从画布边界的距离

void	setAlignment (QwtScaleDraw::Alignment)
	更改刻度的对齐方式

virtual void	draw (QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect) const override
	绘制刻度

virtual void	updateScaleDiv (const QwtScaleDiv &, const QwtScaleDiv &) override
	更新项目以响应轴刻度划分的更改

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 QRectF	boundingRect () const
	Get the bounding rectangle

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	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 }
	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...

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

详细描述

在绘图画布内绘制刻度的类

构造及析构函数说明

◆ QwtPlotScaleItem()

QwtPlotScaleItem::QwtPlotScaleItem	(	QwtScaleDraw::Alignment	alignment = `QwtScaleDraw::BottomScale`,
		const double	pos = `0.0`
	)

explicit

在位置 pos 处的刻度项构造函数

◆ ~QwtPlotScaleItem()

QwtPlotScaleItem::~QwtPlotScaleItem ( )

virtual

析构函数

成员函数说明

◆ borderDistance()

int QwtPlotScaleItem::borderDistance ( ) const

获取从画布边界的距离

◆ draw()

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

overridevirtual

绘制刻度

实现了 QwtPlotItem.

◆ font()

QFont QwtPlotScaleItem::font ( ) const

获取刻度标签字体

◆ isScaleDivFromAxis()

bool QwtPlotScaleItem::isScaleDivFromAxis ( ) const

检查刻度划分与对应轴的同步是否启用

◆ palette()

QPalette QwtPlotScaleItem::palette ( ) const

获取调色板

◆ position()

double QwtPlotScaleItem::position ( ) const

获取刻度的位置

◆ rtti()

int QwtPlotScaleItem::rtti ( ) const

overridevirtual

获取运行时类型信息

重载 QwtPlotItem .

◆ scaleDiv()

const QwtScaleDiv & QwtPlotScaleItem::scaleDiv ( ) const

获取刻度划分

◆ scaleDraw() [1/2]

QwtScaleDraw * QwtPlotScaleItem::scaleDraw ( )

获取刻度绘制器

◆ scaleDraw() [2/2]

const QwtScaleDraw * QwtPlotScaleItem::scaleDraw ( ) const

获取刻度绘制器（const版本）

◆ setAlignment()

void QwtPlotScaleItem::setAlignment ( QwtScaleDraw::Alignment alignment )

更改刻度的对齐方式

◆ setBorderDistance()

void QwtPlotScaleItem::setBorderDistance ( int distance )

将刻度对齐到画布

◆ setFont()

void QwtPlotScaleItem::setFont ( const QFont & font )

更改刻度标签字体

◆ setPalette()

void QwtPlotScaleItem::setPalette ( const QPalette & palette )

设置调色板

◆ setPosition()

void QwtPlotScaleItem::setPosition ( double pos )

更改刻度的位置

◆ setScaleDiv()

void QwtPlotScaleItem::setScaleDiv ( const QwtScaleDiv & scaleDiv )

分配刻度划分

◆ setScaleDivFromAxis()

void QwtPlotScaleItem::setScaleDivFromAxis ( bool on )

启用/禁用刻度划分与对应轴的同步

◆ setScaleDraw()

void QwtPlotScaleItem::setScaleDraw ( QwtScaleDraw * scaleDraw )

设置刻度绘制器

◆ updateScaleDiv()

void QwtPlotScaleItem::updateScaleDiv	(	const QwtScaleDiv &	xScaleDiv,
		const QwtScaleDiv &	yScaleDiv
	)

overridevirtual

更新项目以响应轴刻度划分的更改

重载 QwtPlotItem .

该类的文档由以下文件生成:

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

类

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

◆ QwtPlotScaleItem()

◆ ~QwtPlotScaleItem()

成员函数说明

◆ borderDistance()

◆ draw()

◆ font()

◆ isScaleDivFromAxis()

◆ palette()

◆ position()

◆ rtti()

◆ scaleDiv()

◆ scaleDraw() [1/2]

◆ scaleDraw() [2/2]

◆ setAlignment()

◆ setBorderDistance()

◆ setFont()

◆ setPalette()

◆ setPosition()

◆ setScaleDiv()

◆ setScaleDivFromAxis()

◆ setScaleDraw()

◆ updateScaleDiv()