QwtPlotTradingCurve 展示金融工具价格随时间的变化更多...

#include <qwt_plot_tradingcurve.h>

类 QwtPlotTradingCurve 继承关系图:

类
class	PrivateData

Public 类型
enum	SymbolStyle { NoSymbol = -1 , Bar , CandleStick , UserSymbol = 100 }
	符号样式更多...

enum	Direction { Increasing , Decreasing }
	价格变动的方向更多...

enum	PaintAttribute { ClipSymbols = 0x01 }
	绘制属性更多...

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
	QwtPlotTradingCurve (const QString &title=QString())
	构造函数

	QwtPlotTradingCurve (const QwtText &title)
	构造函数

virtual	~QwtPlotTradingCurve ()
	析构函数

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

void	setPaintAttribute (PaintAttribute, bool on=true)
	指定绘制曲线的属性

bool	testPaintAttribute (PaintAttribute) const
	测试绘制属性

void	setSamples (const QVector< QwtOHLCSample > &)
	用样本数组初始化数据

void	setSamples (QwtSeriesData< QwtOHLCSample > *)
	分配一系列样本

void	setSymbolStyle (SymbolStyle style)
	设置符号样式

SymbolStyle	symbolStyle () const
	获取符号样式

void	setSymbolPen (const QColor &, qreal width=0.0, Qt::PenStyle=Qt::SolidLine)
	构建并设置符号画笔

void	setSymbolPen (const QPen &)
	设置符号画笔

QPen	symbolPen () const
	获取符号画笔

void	setSymbolBrush (Direction, const QBrush &)
	设置符号画刷

QBrush	symbolBrush (Direction) const
	获取符号画刷

void	setSymbolExtent (double)
	设置符号的范围

double	symbolExtent () const
	获取符号的范围

void	setMinSymbolWidth (double)
	设置符号宽度的最小值

double	minSymbolWidth () const
	获取符号宽度的最小值

void	setMaxSymbolWidth (double)
	设置符号宽度的最大值

double	maxSymbolWidth () const
	获取符号宽度的最大值

virtual void	drawSeries (QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, int from, int to) const override
	绘制曲线的一个区间

virtual QRectF	boundingRect () const override
	获取所有样本的边界矩形

virtual QwtGraphic	legendIcon (int index, const QSizeF &) const override
	获取图例图标

Public 成员函数继承自 QwtPlotSeriesItem
	QwtPlotSeriesItem (const QString &title=QString())
	构造函数

	QwtPlotSeriesItem (const QwtText &title)
	构造函数

virtual	~QwtPlotSeriesItem ()
	析构函数

void	setOrientation (Qt::Orientation)
	设置绘图项的方向

Qt::Orientation	orientation () const
	获取绘图项的方向

virtual void	draw (QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect) const override
	绘制完整系列

virtual void	updateScaleDiv (const QwtScaleDiv &, const QwtScaleDiv &) override
	更新刻度划分

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	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

Public 成员函数继承自 QwtSeriesStore< QwtOHLCSample >
void	setData (QwtSeriesData< QwtOHLCSample > *series)

QwtSeriesData< QwtOHLCSample > *	data ()

const QwtSeriesData< QwtOHLCSample > *	data () const

QwtOHLCSample	sample (size_t index) const

virtual size_t	dataSize () const override

virtual QRectF	dataRect () const override

virtual void	setRectOfInterest (const QRectF &rect) override
	Set a the "rectangle of interest" for the stored series

QwtSeriesData< QwtOHLCSample > *	swapData (QwtSeriesData< QwtOHLCSample > *series)

Protected 成员函数
void	init ()
	初始化内部成员

virtual void	drawSymbols (QPainter *, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, int from, int to) const
	绘制符号

virtual void	drawUserSymbol (QPainter *, SymbolStyle, const QwtOHLCSample &, Qt::Orientation, bool inverted, double symbolWidth) const
	为符号样式 >= UserSymbol 绘制符号

void	drawBar (QPainter *, const QwtOHLCSample &, Qt::Orientation, bool inverted, double width) const
	绘制柱状图

void	drawCandleStick (QPainter *, const QwtOHLCSample &, Qt::Orientation, double width) const
	绘制烛台图

virtual double	scaledSymbolWidth (const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect) const
	计算绘图坐标中的符号宽度

Protected 成员函数继承自 QwtPlotSeriesItem
virtual void	dataChanged () override
	dataChanged() indicates, that the series has been changed.

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

详细描述

QwtPlotTradingCurve 展示金融工具价格随时间的变化

成员枚举类型说明

◆ Direction

enum QwtPlotTradingCurve::Direction

价格变动的方向

枚举值
Increasing	The closing price is higher than the opening price
Decreasing	The closing price is lower than the opening price

◆ PaintAttribute

enum QwtPlotTradingCurve::PaintAttribute

绘制属性

枚举值
ClipSymbols	Check if a symbol is on the plot canvas before painting it.

◆ SymbolStyle

enum QwtPlotTradingCurve::SymbolStyle

符号样式

枚举值
NoSymbol	Nothing is displayed
Bar	图表上的一条线显示一个时间单位（例如一天或一小时）内的价格范围（最高和最低价格）。从线的两侧伸出的刻度标记表示开盘价和收盘价。
CandleStick	开盘/收盘价之间的范围显示为填充框。填充画刷取决于价格变动的方向。该框通过线条连接到最高/最低值。
UserSymbol	SymbolTypes >= UserSymbol 通过 drawUserSymbol() 显示，需要在派生的曲线类中重载和实现。参见 drawUserSymbol()

构造及析构函数说明

◆ QwtPlotTradingCurve() [1/2]

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

explicit

构造函数

◆ QwtPlotTradingCurve() [2/2]

QwtPlotTradingCurve::QwtPlotTradingCurve ( const QwtText & title )

explicit

构造函数

◆ ~QwtPlotTradingCurve()

QwtPlotTradingCurve::~QwtPlotTradingCurve ( )

virtual

析构函数

成员函数说明

◆ boundingRect()

QRectF QwtPlotTradingCurve::boundingRect ( ) const

overridevirtual

获取所有样本的边界矩形

重载 QwtPlotSeriesItem .

◆ drawBar()

void QwtPlotTradingCurve::drawBar	(	QPainter *	painter,
		const QwtOHLCSample &	sample,
		Qt::Orientation	orientation,
		bool	inverted,
		double	width
	)		const

protected

绘制柱状图

◆ drawCandleStick()

void QwtPlotTradingCurve::drawCandleStick	(	QPainter *	painter,
		const QwtOHLCSample &	sample,
		Qt::Orientation	orientation,
		double	width
	)		const

protected

绘制烛台图

◆ drawSeries()

void QwtPlotTradingCurve::drawSeries	(	QPainter *	painter,
		const QwtScaleMap &	xMap,
		const QwtScaleMap &	yMap,
		const QRectF &	canvasRect,
		int	from,
		int	to
	)		const

overridevirtual

绘制曲线的一个区间

实现了 QwtPlotSeriesItem.

◆ drawSymbols()

void QwtPlotTradingCurve::drawSymbols	(	QPainter *	painter,
		const QwtScaleMap &	xMap,
		const QwtScaleMap &	yMap,
		const QRectF &	canvasRect,
		int	from,
		int	to
	)		const

protectedvirtual

绘制符号

◆ drawUserSymbol()

void QwtPlotTradingCurve::drawUserSymbol	(	QPainter *	painter,
		SymbolStyle	symbolStyle,
		const QwtOHLCSample &	sample,
		Qt::Orientation	orientation,
		bool	inverted,
		double	symbolWidth
	)		const

protectedvirtual

为符号样式 >= UserSymbol 绘制符号

◆ init()

void QwtPlotTradingCurve::init ( )

protected

初始化内部成员

◆ legendIcon()

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

overridevirtual

获取图例图标

重载 QwtPlotItem .

◆ maxSymbolWidth()

double QwtPlotTradingCurve::maxSymbolWidth ( ) const

获取符号宽度的最大值

◆ minSymbolWidth()

double QwtPlotTradingCurve::minSymbolWidth ( ) const

获取符号宽度的最小值

◆ rtti()

int QwtPlotTradingCurve::rtti ( ) const

overridevirtual

获取运行时类型信息

重载 QwtPlotItem .

◆ scaledSymbolWidth()

double QwtPlotTradingCurve::scaledSymbolWidth	(	const QwtScaleMap &	xMap,
		const QwtScaleMap &	yMap,
		const QRectF &	canvasRect
	)		const

protectedvirtual

计算绘图坐标中的符号宽度

◆ setMaxSymbolWidth()

void QwtPlotTradingCurve::setMaxSymbolWidth ( double width )

设置符号宽度的最大值

◆ setMinSymbolWidth()

void QwtPlotTradingCurve::setMinSymbolWidth ( double width )

设置符号宽度的最小值

◆ setPaintAttribute()

void QwtPlotTradingCurve::setPaintAttribute	(	PaintAttribute	attribute,
		bool	on = `true`
	)

指定绘制曲线的属性

◆ setSamples() [1/2]

void QwtPlotTradingCurve::setSamples ( const QVector< QwtOHLCSample > & samples )

用样本数组初始化数据

◆ setSamples() [2/2]

void QwtPlotTradingCurve::setSamples ( QwtSeriesData< QwtOHLCSample > * data )

分配一系列样本

◆ setSymbolBrush()

void QwtPlotTradingCurve::setSymbolBrush	(	Direction	direction,
		const QBrush &	brush
	)

设置符号画刷

◆ setSymbolExtent()

void QwtPlotTradingCurve::setSymbolExtent ( double extent )

设置符号的范围

◆ setSymbolPen() [1/2]

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

构建并设置符号画笔

◆ setSymbolPen() [2/2]

void QwtPlotTradingCurve::setSymbolPen ( const QPen & pen )

设置符号画笔

◆ setSymbolStyle()

void QwtPlotTradingCurve::setSymbolStyle ( SymbolStyle style )

设置符号样式

◆ symbolBrush()

QBrush QwtPlotTradingCurve::symbolBrush ( Direction direction ) const

获取符号画刷

◆ symbolExtent()

double QwtPlotTradingCurve::symbolExtent ( ) const

获取符号的范围

◆ symbolPen()

QPen QwtPlotTradingCurve::symbolPen ( ) const

获取符号画笔

◆ symbolStyle()

QwtPlotTradingCurve::SymbolStyle QwtPlotTradingCurve::symbolStyle ( ) const

获取符号样式

◆ testPaintAttribute()

bool QwtPlotTradingCurve::testPaintAttribute ( PaintAttribute attribute ) const

测试绘制属性

该类的文档由以下文件生成:

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

◆ Direction

◆ PaintAttribute

◆ SymbolStyle

构造及析构函数说明

◆ QwtPlotTradingCurve() [1/2]

◆ QwtPlotTradingCurve() [2/2]

◆ ~QwtPlotTradingCurve()

成员函数说明

◆ boundingRect()

◆ drawBar()

◆ drawCandleStick()

◆ drawSeries()

◆ drawSymbols()

◆ drawUserSymbol()

◆ init()

◆ legendIcon()

◆ maxSymbolWidth()

◆ minSymbolWidth()

◆ rtti()

◆ scaledSymbolWidth()

◆ setMaxSymbolWidth()

◆ setMinSymbolWidth()

◆ setPaintAttribute()

◆ setSamples() [1/2]

◆ setSamples() [2/2]

◆ setSymbolBrush()

◆ setSymbolExtent()

◆ setSymbolPen() [1/2]

◆ setSymbolPen() [2/2]

◆ setSymbolStyle()

◆ symbolBrush()

◆ symbolExtent()

◆ symbolPen()

◆ symbolStyle()

◆ testPaintAttribute()