內容

• 特性
• 公共函數
• 重實現公共函數
• 信號
• 詳細描述

QVCandlestickModelMapper 類

The QVCandlestickModelMapper class is a vertical model mapper for a candlestick series. 更多...

頭：	#include <QVCandlestickModelMapper>
Since:	Qt 5.8
實例化：	VCandlestickModelMapper
繼承：	QCandlestickModelMapper

• 所有成員列錶，包括繼承成員

特性

closeRow : int firstSetColumn : int highRow : int lastSetColumn : int

lowRow : int openRow : int timestampRow : int

• 2 特性繼承自 QCandlestickModelMapper
• 1 特性繼承自 QObject

公共函數

	QVCandlestickModelMapper (QObject * parent = nullptr)
int	closeRow () const
int	firstSetColumn () const
int	highRow () const
int	lastSetColumn () const
int	lowRow () const
int	openRow () const
void	setCloseRow (int closeRow )
void	setFirstSetColumn (int firstSetColumn )
void	setHighRow (int highRow )
void	setLastSetColumn (int lastSetColumn )
void	setLowRow (int lowRow )
void	setOpenRow (int openRow )
void	setTimestampRow (int timestampRow )
int	timestampRow () const

重實現公共函數

virtual Qt::Orientation

orientation () const

• 5 public functions inherited from QCandlestickModelMapper
• 32 公共函數繼承自 QObject

信號

void	closeRowChanged ()
void	firstSetColumnChanged ()
void	highRowChanged ()
void	lastSetColumnChanged ()
void	lowRowChanged ()
void	openRowChanged ()
void	timestampRowChanged ()

• 2 信號繼承自 QCandlestickModelMapper
• 2 信號繼承自 QObject

額外繼承成員

• 1 公共槽繼承自 QObject
• 11 靜態公共成員繼承自 QObject
• 14 保護函數繼承自 QCandlestickModelMapper
• 9 保護函數繼承自 QObject

詳細描述

The QVCandlestickModelMapper class is a vertical model mapper for a candlestick series.

模型映射器允許使用的數據模型派生自 QAbstractItemModel class as a data source for a chart. A vertical model mapper is used to create a connection between a data model and QCandlestickSeries , so that each column in the data model defines a candlestick item and each row maps to the open, high, low, close, and timestamp values of the candlestick item.

Both model and candlestick series properties can be used to manipulate the data. The model mapper keeps the candlestick series and the data model in sync.

The model mapper ensures that all the candlestick items in the candlestick series have equal sizes. Therefore, adding or removing a value from a candlestick item causes the same change to be made in all the candlestick items in the candlestick series.

另請參閱 QCandlestickSeries , QCandlestickSet ，和 QHCandlestickModelMapper .

特性文檔編製

closeRow : int

This property holds the row of the model that contains the close values of the candlestick items in the series.

默認值為 -1 (無效映射)。

訪問函數：

int	closeRow () const
void	setCloseRow (int closeRow )

通知程序信號：

void	closeRowChanged ()

firstSetColumn : int

This property holds the column of the model that is used as the data source for the first item.

默認值為 -1 (無效映射)。

訪問函數：

int	firstSetColumn () const
void	setFirstSetColumn (int firstSetColumn )

通知程序信號：

void	firstSetColumnChanged ()

highRow : int

This property holds the row of the model that contains the high values of the candlestick items in the series.

默認值為 -1 (無效映射)。

訪問函數：

int	highRow () const
void	setHighRow (int highRow )

通知程序信號：

void	highRowChanged ()

lastSetColumn : int

This property holds the column of the model that is used as the data source for the last item.

默認值為 -1 (無效映射)。

訪問函數：

int	lastSetColumn () const
void	setLastSetColumn (int lastSetColumn )

通知程序信號：

void	lastSetColumnChanged ()

lowRow : int

This property holds the row of the model that contains the low values of the candlestick items in the series.

默認值為 -1 (無效映射)。

訪問函數：

int	lowRow () const
void	setLowRow (int lowRow )

通知程序信號：

void	lowRowChanged ()

openRow : int

This property holds the row of the model that contains the open values of the candlestick items in the series.

默認值為 -1 (無效映射)。

訪問函數：

int	openRow () const
void	setOpenRow (int openRow )

通知程序信號：

void	openRowChanged ()

timestampRow : int

This property holds the row of the model that contains the timestamp values of the candlestick items in the series.

默認值為 -1 (無效映射)。

訪問函數：

int	timestampRow () const
void	setTimestampRow (int timestampRow )

通知程序信號：

void	timestampRowChanged ()

成員函數文檔編製

QVCandlestickModelMapper:: QVCandlestickModelMapper ( QObject * parent = nullptr)

Constructs a vertical model mapper object which is a child of parent .

[signal] void QVCandlestickModelMapper:: closeRowChanged ()

Emitted when the row of the model that contains close values is changed.

注意： 通知程序信號對於特性 closeRow .

另請參閱 closeRow .

[signal] void QVCandlestickModelMapper:: firstSetColumnChanged ()

Emitted when the column of the model that contains the data of the first item is changed.

注意： 通知程序信號對於特性 firstSetColumn .

另請參閱 firstSetColumn .

[signal] void QVCandlestickModelMapper:: highRowChanged ()

Emitted when the row of the model that contains high values is changed.

注意： 通知程序信號對於特性 highRow .

另請參閱 highRow .

[signal] void QVCandlestickModelMapper:: lastSetColumnChanged ()

Emitted when the column of the model that contains the data of the last item is changed.

注意： 通知程序信號對於特性 lastSetColumn .

另請參閱 lastSetColumn .

[signal] void QVCandlestickModelMapper:: lowRowChanged ()

Emitted when the row of the model that contains low values is changed.

注意： 通知程序信號對於特性 lowRow .

另請參閱 lowRow .

[signal] void QVCandlestickModelMapper:: openRowChanged ()

Emitted when the row of the model that contains open values is changed.

注意： 通知程序信號對於特性 openRow .

另請參閱 openRow .

[虛擬] Qt::Orientation QVCandlestickModelMapper:: orientation () const

重實現自 QCandlestickModelMapper::orientation ().

返迴 Qt::Vertical . This means that values of the item are read from columns.

[signal] void QVCandlestickModelMapper:: timestampRowChanged ()

Emitted when the row of the model that contains timestamp values is changed.

注意： 通知程序信號對於特性 timestampRow .

另請參閱 timestampRow .