QCandlestickSet Class

The QCandlestickSet class represents a single candlestick item in a candlestick chart. 更多...

头：	#include <QCandlestickSet>
Since:	Qt 5.8
实例化：	CandlestickSet
继承：	QObject

该类在 Qt 5.8 引入。

• 所有成员列表，包括继承成员

特性

brush : QBrush close : qreal high : qreal low : qreal

open : qreal pen : QPen timestamp : qreal

公共函数

	QCandlestickSet (qreal open , qreal high , qreal low , qreal close , qreal timestamp = 0.0, QObject * parent = nullptr)
	QCandlestickSet (qreal timestamp = 0.0, QObject * parent = nullptr)
virtual	~QCandlestickSet ()
QBrush	brush () const
qreal	close () const
qreal	high () const
qreal	low () const
qreal	open () const
QPen	pen () const
void	setBrush (const QBrush & brush )
void	setClose (qreal close )
void	setHigh (qreal high )
void	setLow (qreal low )
void	setOpen (qreal open )
void	setPen (const QPen & pen )
void	setTimestamp (qreal timestamp )
qreal	timestamp () const

信号

void	brushChanged ()
void	clicked ()
void	closeChanged ()
void	doubleClicked ()
void	highChanged ()
void	hovered (bool status )
void	lowChanged ()
void	openChanged ()
void	penChanged ()
void	pressed ()
void	released ()
void	timestampChanged ()

详细描述

Five values are needed to create a graphical representation of a candlestick item: open , high , low , close ，和 timestamp . These values can be either passed to a QCandlestickSet constructor or set by using setOpen (), setHigh (), setLow (), setClose ()，和 setTimestamp ().

另请参阅 QCandlestickSeries .

特性文档编制

brush : QBrush

This property holds the brush used to fill the candlestick item.

访问函数：

QBrush	brush () const
void	setBrush (const QBrush & brush )

通知程序信号：

void	brushChanged ()

close : qreal

This property holds the close value of the candlestick item.

访问函数：

qreal	close () const
void	setClose (qreal close )

通知程序信号：

void	closeChanged ()

high : qreal

This property holds the high value of the candlestick item.

访问函数：

qreal	high () const
void	setHigh (qreal high )

通知程序信号：

void	highChanged ()

low : qreal

This property holds the low value of the candlestick item.

访问函数：

qreal	low () const
void	setLow (qreal low )

通知程序信号：

void	lowChanged ()

open : qreal

This property holds the open value of the candlestick item.

访问函数：

qreal	open () const
void	setOpen (qreal open )

通知程序信号：

void	openChanged ()

pen : QPen

This property holds the pen used to draw the lines of the candlestick item.

访问函数：

QPen	pen () const
void	setPen (const QPen & pen )

通知程序信号：

void	penChanged ()

timestamp : qreal

This property holds the timestamp value of the candlestick item.

访问函数：

qreal	timestamp () const
void	setTimestamp (qreal timestamp )

通知程序信号：

void	timestampChanged ()

成员函数文档编制

QCandlestickSet:: QCandlestickSet ( qreal open , qreal high , qreal low , qreal close , qreal timestamp = 0.0, QObject * parent = nullptr)

Constructs a candlestick item with given ordered values. The values open , high , low ，和 close are mandatory. The values timestamp and parent are optional.

QCandlestickSet:: QCandlestickSet ( qreal timestamp = 0.0, QObject * parent = nullptr)

Constructs a candlestick item with an optional timestamp 和 parent .

[signal] void QCandlestickSet:: brushChanged ()

This signal is emitted when the candlestick item brush changes.

注意： 通知程序信号对于特性 brush .

另请参阅 brush .

[signal] void QCandlestickSet:: clicked ()

This signal is emitted when the candlestick item is clicked.

[signal] void QCandlestickSet:: closeChanged ()

This signal is emitted when the candlestick item close value changes.

注意： 通知程序信号对于特性 close .

另请参阅 close .

[signal] void QCandlestickSet:: doubleClicked ()

This signal is emitted when the user double-clicks a candlestick item.

[signal] void QCandlestickSet:: highChanged ()

This signal is emitted when the candlestick item high value changes.

注意： 通知程序信号对于特性 high .

另请参阅 high .

[signal] void QCandlestickSet:: hovered ( bool status )

This signal is emitted when a mouse is hovered over a candlestick item.

When the mouse moves over the item, status turns true , and when the mouse moves away again, it turns false .

[signal] void QCandlestickSet:: lowChanged ()

This signal is emitted when the candlestick item low value changes.

注意： 通知程序信号对于特性 low .

另请参阅 low .

[signal] void QCandlestickSet:: openChanged ()

This signal is emitted when the candlestick item open value changes.

注意： 通知程序信号对于特性 open .

另请参阅 open .

[signal] void QCandlestickSet:: penChanged ()

This signal is emitted when the candlestick item pen changes.

注意： 通知程序信号对于特性 pen .

另请参阅 pen .

[signal] void QCandlestickSet:: pressed ()

This signal is emitted when the user clicks the candlestick item and holds down the mouse button.

[signal] void QCandlestickSet:: released ()

This signal is emitted when the user releases the mouse press on the candlestick item.

[signal] void QCandlestickSet:: timestampChanged ()

This signal is emitted when the candlestick item timestamp changes.

注意： 通知程序信号对于特性 timestamp .

另请参阅 timestamp .

[虚拟] QCandlestickSet:: ~QCandlestickSet ()

Destroys the candlestick item.

内容

• 特性

• 公共函数

• 信号

• 详细描述