QVCandlestickModelMapper Class
The QVCandlestickModelMapper class is a vertical model mapper for a candlestick series. 更多...
| 头文件: | #include <QVCandlestickModelMapper> |
| 开始支持版本: | Qt 5.8 |
| Instantiated By: | VCandlestickModelMapper |
| 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
| 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 | closeRowChanged() |
| void | firstSetColumnChanged() |
| void | highRowChanged() |
| void | lastSetColumnChanged() |
| void | lowRowChanged() |
| void | openRowChanged() |
| void | timestampRowChanged() |
- 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 QVCandlestickModelMapper class is a vertical 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 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.
参见 QCandlestickSeries, QCandlestickSet, and QHCandlestickModelMapper.
属性
closeRow : int
This property holds the row 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 | closeRow() const |
| void | setCloseRow(int closeRow) |
Notifier signal:
| void | closeRowChanged() |
firstSetColumn : int
This property holds the column 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 | firstSetColumn() const |
| void | setFirstSetColumn(int firstSetColumn) |
Notifier signal:
| void | firstSetColumnChanged() |
highRow : int
This property holds the row 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 | highRow() const |
| void | setHighRow(int highRow) |
Notifier signal:
| void | highRowChanged() |
lastSetColumn : int
This property holds the column 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 | lastSetColumn() const |
| void | setLastSetColumn(int lastSetColumn) |
Notifier signal:
| void | lastSetColumnChanged() |
lowRow : int
This property holds the row 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 | lowRow() const |
| void | setLowRow(int lowRow) |
Notifier signal:
| void | lowRowChanged() |
openRow : int
This property holds the row 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 | openRow() const |
| void | setOpenRow(int openRow) |
Notifier signal:
| void | openRowChanged() |
timestampRow : int
This property holds the row 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 | timestampRow() const |
| void | setTimestampRow(int timestampRow) |
Notifier signal:
| void | timestampRowChanged() |
成员函数
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.
Note: Notifier signal for property closeRow.
参见 closeRow.
[signal] void QVCandlestickModelMapper::firstSetColumnChanged()
Emitted when the column of the model that contains the data of the first item is changed.
Note: Notifier signal for property firstSetColumn.
参见 firstSetColumn.
[signal] void QVCandlestickModelMapper::highRowChanged()
Emitted when the row of the model that contains high values is changed.
Note: Notifier signal for property highRow.
参见 highRow.
[signal] void QVCandlestickModelMapper::lastSetColumnChanged()
Emitted when the column of the model that contains the data of the last item is changed.
Note: Notifier signal for property lastSetColumn.
参见 lastSetColumn.
[signal] void QVCandlestickModelMapper::lowRowChanged()
Emitted when the row of the model that contains low values is changed.
Note: Notifier signal for property lowRow.
参见 lowRow.
[signal] void QVCandlestickModelMapper::openRowChanged()
Emitted when the row of the model that contains open values is changed.
Note: Notifier signal for property openRow.
参见 openRow.
[virtual] Qt::Orientation QVCandlestickModelMapper::orientation() const
Reimplemented from QCandlestickModelMapper::orientation().
Returns 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.
Note: Notifier signal for property timestampRow.
参见 timestampRow.