QHBoxPlotModelMapper Class
The QHBoxPlotModelMapper class is a horizontal model mapper for box plot series. 更多...
| 头文件: | #include <QHBoxPlotModelMapper> |
| Instantiated By: | HBoxPlotModelMapper |
| 基类: | QObject |
属性
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- 1 个属性继承自 QObject
公有函数
| QHBoxPlotModelMapper(QObject *parent = nullptr) | |
| int | columnCount() const |
| int | firstBoxSetRow() const |
| int | firstColumn() const |
| int | lastBoxSetRow() const |
| QAbstractItemModel * | model() const |
| QBoxPlotSeries * | series() const |
| void | setColumnCount(int rowCount) |
| void | setFirstBoxSetRow(int firstBoxSetRow) |
| void | setFirstColumn(int firstColumn) |
| void | setLastBoxSetRow(int lastBoxSetRow) |
| void | setModel(QAbstractItemModel *model) |
| void | setSeries(QBoxPlotSeries *series) |
- 32 个公有函数继承自 QObject
信号
| void | columnCountChanged() |
| void | firstBoxSetRowChanged() |
| void | firstColumnChanged() |
| void | lastBoxSetRowChanged() |
| void | modelReplaced() |
| void | seriesReplaced() |
- 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
- 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 QHBoxPlotModelMapper class is a horizontal model mapper for box plot 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 QBoxPlotSeries object, so that each row in the data model defines a box-and-whiskers item and each column maps to the range and three median values of the box-and-whiskers item.
Both model and series properties can be used to manipulate the data. The model mapper keeps the series and the data model in sync.
The model mapper ensures that all the box-and-whiskers items in the box plot series have equal sizes. Therefore, adding or removing a value from a box-and-whiskers item causes the same change to be made in all the box-and-whiskers items in the box plot series.
属性
columnCount : int
This property holds the number of columns of the model that are mapped as the data for the box plot series.
The minimum and default value is -1 (number limited to the number of columns in the model).
访问函数:
| int | columnCount() const |
| void | setColumnCount(int rowCount) |
Notifier signal:
| void | columnCountChanged() |
firstBoxSetRow : int
This property holds the row of the model that is used as the data source for the first box-and-whiskers item.
The default value is -1 (invalid mapping).
访问函数:
| int | firstBoxSetRow() const |
| void | setFirstBoxSetRow(int firstBoxSetRow) |
Notifier signal:
| void | firstBoxSetRowChanged() |
firstColumn : int
This property holds the column of the model that contains the first values of the box-and-whiskers items in the box plot series.
The minimum and default value is 0.
访问函数:
| int | firstColumn() const |
| void | setFirstColumn(int firstColumn) |
Notifier signal:
| void | firstColumnChanged() |
lastBoxSetRow : int
This property holds the row of the model that is used as the data source for the last box-and-whiskers item.
The default value is -1 (invalid mapping).
访问函数:
| int | lastBoxSetRow() const |
| void | setLastBoxSetRow(int lastBoxSetRow) |
Notifier signal:
| void | lastBoxSetRowChanged() |
model : QAbstractItemModel *
This property holds the model that is used by the mapper.
访问函数:
| QAbstractItemModel * | model() const |
| void | setModel(QAbstractItemModel *model) |
Notifier signal:
| void | modelReplaced() |
series : QBoxPlotSeries *
This property holds the box plot series that is used by the mapper.
All the data in the series is discarded when it is set to the mapper. When a new series is specified, the old series is disconnected (but it preserves its data).
访问函数:
| QBoxPlotSeries * | series() const |
| void | setSeries(QBoxPlotSeries *series) |
Notifier signal:
| void | seriesReplaced() |
成员函数
QHBoxPlotModelMapper::QHBoxPlotModelMapper(QObject *parent = nullptr)
Constructs a mapper object that is a child of parent.
[signal] void QHBoxPlotModelMapper::columnCountChanged()
This signal is emitted when the number of columns changes.
Note: Notifier signal for property columnCount.
[signal] void QHBoxPlotModelMapper::firstBoxSetRowChanged()
This signal is emitted when the first box-and-whiskers item row changes.
Note: Notifier signal for property firstBoxSetRow.
[signal] void QHBoxPlotModelMapper::firstColumnChanged()
This signal is emitted when the first column changes.
Note: Notifier signal for property firstColumn.
[signal] void QHBoxPlotModelMapper::lastBoxSetRowChanged()
This signal is emitted when the last box-and-whiskers item row changes.
Note: Notifier signal for property lastBoxSetRow.
[signal] void QHBoxPlotModelMapper::modelReplaced()
This signal is emitted when the model that the mapper is connected to changes.
Note: Notifier signal for property model.
[signal] void QHBoxPlotModelMapper::seriesReplaced()
This signal is emitted when the series that the mapper is connected to changes.
Note: Notifier signal for property series.