QCandlestickModelMapper Class
Abstract model mapper class for candlestick series. 更多...
| 头文件: | #include <QCandlestickModelMapper> |
| 开始支持版本: | Qt 5.8 |
| 基类: | QObject |
| 派生类: |
属性
- 1 个属性继承自 QObject
公有函数
| QCandlestickModelMapper(QObject *parent = nullptr) | |
| QAbstractItemModel * | model() const |
| virtual Qt::Orientation | orientation() const = 0 |
| QCandlestickSeries * | series() const |
| void | setModel(QAbstractItemModel *model) |
| void | setSeries(QCandlestickSeries *series) |
- 32 个公有函数继承自 QObject
信号
| void | modelReplaced() |
| void | seriesReplaced() |
- 2 个信号继承自 QObject
受保护的函数
| int | close() const |
| int | firstSetSection() const |
| int | high() const |
| int | lastSetSection() const |
| int | low() const |
| int | open() const |
| void | setClose(int close) |
| void | setFirstSetSection(int firstSetSection) |
| void | setHigh(int high) |
| void | setLastSetSection(int lastSetSection) |
| void | setLow(int low) |
| void | setOpen(int open) |
| void | setTimestamp(int timestamp) |
| int | timestamp() const |
- 9 个受保护的函数继承自 QObject
其他继承的成员
详细描述
Abstract model mapper class for candlestick series.
Model mappers allow the use of a QAbstractItemModel-derived model as a data source for a chart series, creating a connection between a QCandlestickSeries and the model object. A model mapper maintains an equal size across all QCandlestickSets.
Note: The model used must support adding and removing rows/columns and modifying the data of the cells.
属性
model : QAbstractItemModel *
Defines the model that is used by the mapper.
访问函数:
| QAbstractItemModel * | model() const |
| void | setModel(QAbstractItemModel *model) |
Notifier signal:
| void | modelReplaced() |
series : QCandlestickSeries *
Defines the QCandlestickSeries object that is used by the mapper.
Note: All data in the series is discarded when it is set to the mapper. When a new series is specified, the old series is disconnected (preserving its data).
访问函数:
| QCandlestickSeries * | series() const |
| void | setSeries(QCandlestickSeries *series) |
Notifier signal:
| void | seriesReplaced() |
成员函数
QCandlestickModelMapper::QCandlestickModelMapper(QObject *parent = nullptr)
Constructs a model mapper object as a child of parent.
[protected] int QCandlestickModelMapper::close() const
Returns the row/column of the model that contains the close values of the sets in the series. Default value is -1 (invalid mapping).
参见 setClose().
[protected] int QCandlestickModelMapper::firstSetSection() const
Returns the section of the model that is used as the data source for the first candlestick set. Default value is -1 (invalid mapping).
参见 setFirstSetSection().
[protected] int QCandlestickModelMapper::high() const
Returns the row/column of the model that contains the high values of the sets in the series. Default value is -1 (invalid mapping).
参见 setHigh().
[protected] int QCandlestickModelMapper::lastSetSection() const
Returns the section of the model that is used as the data source for the last candlestick set. Default value is -1 (invalid mapping).
参见 setLastSetSection().
[protected] int QCandlestickModelMapper::low() const
Returns the row/column of the model that contains the low values of the sets in the series. Default value is -1 (invalid mapping).
参见 setLow().
[signal] void QCandlestickModelMapper::modelReplaced()
Emitted when the model, to which the mapper is connected, has changed.
Note: Notifier signal for property model.
参见 model.
[protected] int QCandlestickModelMapper::open() const
Returns the row/column of the model that contains the open values of the sets in the series. Default value is -1 (invalid mapping).
参见 setOpen().
[pure virtual] Qt::Orientation QCandlestickModelMapper::orientation() const
Returns the orientation that is used when QCandlestickModelMapper accesses the model. This determines whether the consecutive values of the set are read from rows (Qt::Horizontal) or from columns (Qt::Vertical).
[signal] void QCandlestickModelMapper::seriesReplaced()
Emitted when the series to which mapper is connected to has changed.
Note: Notifier signal for property series.
参见 series.
[protected] void QCandlestickModelMapper::setClose(int close)
Sets the row/column of the model that contains the close values of the sets in the series. Default value is -1 (invalid mapping).
参见 close().
[protected] void QCandlestickModelMapper::setFirstSetSection(int firstSetSection)
Sets the section of the model that is used as the data source for the first candlestick set. Parameter firstSetSection specifies the section of the model. Default value is -1.
参见 firstSetSection().
[protected] void QCandlestickModelMapper::setHigh(int high)
Sets the row/column of the model that contains the high values of the sets in the series. Default value is -1 (invalid mapping).
参见 high().
[protected] void QCandlestickModelMapper::setLastSetSection(int lastSetSection)
Sets the section of the model that is used as the data source for the last candlestick set. Parameter lastSetSection specifies the section of the model. Default value is -1.
参见 lastSetSection().
[protected] void QCandlestickModelMapper::setLow(int low)
Sets the row/column of the model that contains the low values of the sets in the series. Default value is -1 (invalid mapping).
参见 low().
[protected] void QCandlestickModelMapper::setOpen(int open)
Sets the row/column of the model that contains the open values of the sets in the series. Default value is -1 (invalid mapping).
参见 open().
[protected] void QCandlestickModelMapper::setTimestamp(int timestamp)
Sets the row/column of the model that contains the timestamp values of the sets in the series. Default value is -1 (invalid mapping).
参见 timestamp().
[protected] int QCandlestickModelMapper::timestamp() const
Returns the row/column of the model that contains the timestamp values of the sets in the series. Default value is -1 (invalid mapping).
参见 setTimestamp().