QVBarModelMapper Class
Vertical model mapper for bar series. More...
| Header: | #include <QVBarModelMapper> |
| Instantiated By: | VBarModelMapper |
| Inherits: | QBarModelMapper |
Properties
|
- 1 property inherited from QObject
Public Functions
| QVBarModelMapper(QObject *parent = Q_NULLPTR) | |
| int | firstBarSetColumn() const |
| int | firstRow() const |
| int | lastBarSetColumn() const |
| QAbstractItemModel * | model() const |
| int | rowCount() const |
| QAbstractBarSeries * | series() const |
| void | setFirstBarSetColumn(int firstBarSetColumn) |
| void | setFirstRow(int firstRow) |
| void | setLastBarSetColumn(int lastBarSetColumn) |
| void | setModel(QAbstractItemModel *model) |
| void | setRowCount(int rowCount) |
| void | setSeries(QAbstractBarSeries *series) |
- 31 public functions inherited from QObject
Signals
| void | firstBarSetColumnChanged() |
| void | firstRowChanged() |
| void | lastBarSetColumnChanged() |
| void | modelReplaced() |
| void | rowCountChanged() |
| void | seriesReplaced() |
- 2 signals inherited from QObject
Additional Inherited Members
- 1 public slot inherited from QObject
- 1 public variable inherited from QObject
- 10 static public members inherited from QObject
- 14 protected functions inherited from QBarModelMapper
- 9 protected functions inherited from QObject
- 2 protected variables inherited from QObject
Detailed Description
Vertical model mapper for bar series.
Model mappers allow you to use QAbstractItemModel derived models as a data source for a chart series. Vertical model mapper is used to create a connection between QAbstractBarSeries and QAbstractItemModel derived model object. Model mapper maintains equal size of all the BarSets. Adding/removing value from the BarSet causes the the same change in the rest of the BarSets added to the same series.
Note: Used model has to support adding/removing rows/columns and modifying the data of the cells.
Property Documentation
firstBarSetColumn : int
This property defines which column of the model is used as the data source for the first bar set.
Default value is: -1 (invalid mapping)
Access functions:
| int | firstBarSetColumn() const |
| void | setFirstBarSetColumn(int firstBarSetColumn) |
Notifier signal:
| void | firstBarSetColumnChanged() |
firstRow : int
This property defines which row of the model contains the first values of the QBarSets in the series.
Minimal and default value is: 0
Access functions:
| int | firstRow() const |
| void | setFirstRow(int firstRow) |
Notifier signal:
| void | firstRowChanged() |
lastBarSetColumn : int
This property defines which column of the model is used as the data source for the last bar set.
Default value is: -1 (invalid mapping)
Access functions:
| int | lastBarSetColumn() const |
| void | setLastBarSetColumn(int lastBarSetColumn) |
Notifier signal:
| void | lastBarSetColumnChanged() |
model : QAbstractItemModel *
This property defines the model that is used by the mapper.
Access functions:
| QAbstractItemModel * | model() const |
| void | setModel(QAbstractItemModel *model) |
Notifier signal:
| void | modelReplaced() |
rowCount : int
This property defines the number of rows of the model that are mapped as the data for QAbstractBarSeries.
Minimal and default value is: -1 (count limited by the number of rows in the model)
Access functions:
| int | rowCount() const |
| void | setRowCount(int rowCount) |
Notifier signal:
| void | rowCountChanged() |
series : QAbstractBarSeries *
This property defines the QBarSeries object that is used by the mapper.
All the data in the series is discarded when it is set to the mapper. When new series is specified the old series is disconnected (it preserves its data)
Access functions:
| QAbstractBarSeries * | series() const |
| void | setSeries(QAbstractBarSeries *series) |
Notifier signal:
| void | seriesReplaced() |
Member Function Documentation
QVBarModelMapper::QVBarModelMapper(QObject *parent = Q_NULLPTR)
Constructs a mapper object which is a child of parent.
[signal] void QVBarModelMapper::firstBarSetColumnChanged()
Emitted when the firstBarSetColumn has changed.
Note: Notifier signal for property firstBarSetColumn.
[signal] void QVBarModelMapper::firstRowChanged()
Emitted when the firstRow has changed.
Note: Notifier signal for property firstRow.
[signal] void QVBarModelMapper::lastBarSetColumnChanged()
Emitted when the lastBarSetColumn has changed.
Note: Notifier signal for property lastBarSetColumn.
[signal] void QVBarModelMapper::modelReplaced()
Emitted when the model to which mapper is connected to has changed.
Note: Notifier signal for property model.
[signal] void QVBarModelMapper::rowCountChanged()
Emitted when the rowCount has changed.
Note: Notifier signal for property rowCount.
[signal] void QVBarModelMapper::seriesReplaced()
Emitted when the series to which mapper is connected to has changed.
Note: Notifier signal for property series.