显示区域的绘图项更多...

#include <qwt_plot_zoneitem.h>

类 QwtPlotZoneItem 继承关系图:

类
class	PrivateData

Public 成员函数
	QwtPlotZoneItem ()
	构造函数

virtual	~QwtPlotZoneItem ()
	析构函数

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

void	setOrientation (Qt::Orientation)
	设置区域的方向

Qt::Orientation	orientation () const
	获取区域的方向

void	setInterval (double min, double max)
	设置区域的区间

void	setInterval (const QwtInterval &)
	设置区域的区间

QwtInterval	interval () const
	获取区域的区间

void	setPen (const QColor &, qreal width=0.0, Qt::PenStyle=Qt::SolidLine)
	构建并分配画笔

void	setPen (const QPen &)
	分配画笔

const QPen &	pen () const
	获取用于绘制边界线的画笔

void	setBrush (const QBrush &)
	分配画刷

const QBrush &	brush () const
	获取用于填充区域的画刷

virtual void	draw (QPainter *, const QwtScaleMap &, const QwtScaleMap &, const QRectF &canvasRect) const override
	绘制区域

virtual QRectF	boundingRect () const override
	获取边界矩形

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

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

显示区域的绘图项

构造及析构函数说明

◆ QwtPlotZoneItem()

QwtPlotZoneItem::QwtPlotZoneItem ( )

explicit

构造函数

◆ ~QwtPlotZoneItem()

QwtPlotZoneItem::~QwtPlotZoneItem ( )

virtual

析构函数

成员函数说明

◆ boundingRect()

QRectF QwtPlotZoneItem::boundingRect ( ) const

overridevirtual

获取边界矩形

重载 QwtPlotItem .

◆ brush()

const QBrush & QwtPlotZoneItem::brush ( ) const

获取用于填充区域的画刷

◆ draw()

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

overridevirtual

绘制区域

实现了 QwtPlotItem.

◆ interval()

QwtInterval QwtPlotZoneItem::interval ( ) const

获取区域的区间

◆ orientation()

Qt::Orientation QwtPlotZoneItem::orientation ( ) const

获取区域的方向

◆ pen()

const QPen & QwtPlotZoneItem::pen ( ) const

获取用于绘制边界线的画笔

◆ rtti()

int QwtPlotZoneItem::rtti ( ) const

overridevirtual

获取运行时类型信息

重载 QwtPlotItem .

◆ setBrush()

void QwtPlotZoneItem::setBrush ( const QBrush & brush )

分配画刷

◆ setInterval() [1/2]

void QwtPlotZoneItem::setInterval ( const QwtInterval & interval )

设置区域的区间

◆ setInterval() [2/2]

void QwtPlotZoneItem::setInterval	(	double	min,
		double	max
	)

设置区域的区间

◆ setOrientation()

void QwtPlotZoneItem::setOrientation ( Qt::Orientation orientation )

设置区域的方向

◆ setPen() [1/2]

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

构建并分配画笔

◆ setPen() [2/2]

void QwtPlotZoneItem::setPen ( const QPen & pen )

分配画笔

该类的文档由以下文件生成:

/home/runner/work/QWT/QWT/src/plot/qwt_plot_zoneitem.h
/home/runner/work/QWT/QWT/src/plot/qwt_plot_zoneitem.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

◆ QwtPlotZoneItem()

◆ ~QwtPlotZoneItem()

成员函数说明

◆ boundingRect()

◆ brush()

◆ draw()

◆ interval()

◆ orientation()

◆ pen()

◆ rtti()

◆ setBrush()

◆ setInterval() [1/2]

◆ setInterval() [2/2]

◆ setOrientation()

◆ setPen() [1/2]

◆ setPen() [2/2]