QHCandlestickModelMapper Class
The QHCandlestickModelMapper class is a horizontal model mapper for a candlestick series. 更多...
| 头文件: | #include <QHCandlestickModelMapper> |
| 开始支持版本: | Qt 5.8 |
| Instantiated By: | HCandlestickModelMapper |
| 基类: | QCandlestickModelMapper |
属性
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- 2 个属性继承自 QCandlestickModelMapper
- 1 个属性继承自 QObject
公有函数
| QHCandlestickModelMapper(QObject *parent = nullptr) | |
| int | closeColumn() const |
| int | firstSetRow() const |
| int | highColumn() const |
| int | lastSetRow() const |
| int | lowColumn() const |
| int | openColumn() const |
| void | setCloseColumn(int closeColumn) |
| void | setFirstSetRow(int firstSetRow) |
| void | setHighColumn(int highColumn) |
| void | setLastSetRow(int lastSetRow) |
| void | setLowColumn(int lowColumn) |
| void | setOpenColumn(int openColumn) |
| void | setTimestampColumn(int timestampColumn) |
| int | timestampColumn() const |
重新实现的公有函数
| virtual Qt::Orientation | orientation() const |
- 5 个公有函数继承自 QCandlestickModelMapper
- 32 个公有函数继承自 QObject
信号
| void | closeColumnChanged() |
| void | firstSetRowChanged() |
| void | highColumnChanged() |
| void | lastSetRowChanged() |
| void | lowColumnChanged() |
| void | openColumnChanged() |
| void | timestampColumnChanged() |
- 2 个信号继承自 QCandlestickModelMapper
- 2 个信号继承自 QObject
其他继承的成员
- 1 个公有槽函数继承自 QObject
- 1 个公有变量继承自 QObject
- 10 个静态公有成员继承自 QObject
- 14 个受保护的函数继承自 QCandlestickModelMapper
- 9 个受保护的函数继承自 QObject
- 2 个受保护的变量继承自 QObject
详细描述
The QHCandlestickModelMapper class is a horizontal model mapper for a candlestick series.
Model mappers enable using a data model derived from the QAbstractItemModel class as a data source for a chart. A horizontal model mapper is used to create a connection between a data model and QCandlestickSeries, so that each row in the data model defines a candlestick item and each column 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.
参见 QCandlestickSeries, QCandlestickSet, and QVCandlestickModelMapper.
属性
closeColumn : int
This property holds the column of the model that contains the close values of the candlestick items in the series.
The default value is -1 (invalid mapping).
访问函数:
| int | closeColumn() const |
| void | setCloseColumn(int closeColumn) |
Notifier signal:
| void | closeColumnChanged() |
firstSetRow : int
This property holds the row of the model that is used as the data source for the first item.
The default value is -1 (invalid mapping).
访问函数:
| int | firstSetRow() const |
| void | setFirstSetRow(int firstSetRow) |
Notifier signal:
| void | firstSetRowChanged() |
highColumn : int
This property holds the column of the model that contains the high values of the candlestick items in the series.
The default value is -1 (invalid mapping).
访问函数:
| int | highColumn() const |
| void | setHighColumn(int highColumn) |
Notifier signal:
| void | highColumnChanged() |
lastSetRow : int
This property holds the row of the model that is used as the data source for the last item.
The default value is -1 (invalid mapping).
访问函数:
| int | lastSetRow() const |
| void | setLastSetRow(int lastSetRow) |
Notifier signal:
| void | lastSetRowChanged() |
lowColumn : int
This property holds the column of the model that contains the low values of the candlestick items in the series.
The default value is -1 (invalid mapping).
访问函数:
| int | lowColumn() const |
| void | setLowColumn(int lowColumn) |
Notifier signal:
| void | lowColumnChanged() |
openColumn : int
This property holds the column of the model that contains the open values of the candlestick items in the series.
The default value is -1 (invalid mapping).
访问函数:
| int | openColumn() const |
| void | setOpenColumn(int openColumn) |
Notifier signal:
| void | openColumnChanged() |
timestampColumn : int
This property holds the column of the model that contains the timestamp values of the candlestick items in the series.
The default value is -1 (invalid mapping).
访问函数:
| int | timestampColumn() const |
| void | setTimestampColumn(int timestampColumn) |
Notifier signal:
| void | timestampColumnChanged() |
成员函数
QHCandlestickModelMapper::QHCandlestickModelMapper(QObject *parent = nullptr)
Constructs a horizontal model mapper object which is a child of parent.
[signal] void QHCandlestickModelMapper::closeColumnChanged()
Emitted when the column of the model that contains close values is changed.
Note: Notifier signal for property closeColumn.
参见 closeColumn.
[signal] void QHCandlestickModelMapper::firstSetRowChanged()
Emitted when the row of the model that contains the data of the first item is changed.
Note: Notifier signal for property firstSetRow.
参见 firstSetRow.
[signal] void QHCandlestickModelMapper::highColumnChanged()
Emitted when the column of the model that contains high values is changed.
Note: Notifier signal for property highColumn.
参见 highColumn.
[signal] void QHCandlestickModelMapper::lastSetRowChanged()
Emitted when the row of the model that contains the data of the last item is changed.
Note: Notifier signal for property lastSetRow.
参见 lastSetRow.
[signal] void QHCandlestickModelMapper::lowColumnChanged()
Emitted when the column of the model that contains low values is changed.
Note: Notifier signal for property lowColumn.
参见 lowColumn.
[signal] void QHCandlestickModelMapper::openColumnChanged()
Emitted when the column of the model that contains open values is changed.
Note: Notifier signal for property openColumn.
参见 openColumn.
[virtual] Qt::Orientation QHCandlestickModelMapper::orientation() const
Reimplemented from QCandlestickModelMapper::orientation().
Returns Qt::Horizontal. This means that values of the item are read from rows.
[signal] void QHCandlestickModelMapper::timestampColumnChanged()
Emitted when the column of the model that contains timestamp values is changed
Note: Notifier signal for property timestampColumn.
参见 timestampColumn.