QVBoxPlotModelMapper Class

The QVBoxPlotModelMapper is a vertical model mapper for box plot series. More...

Header:	#include <QVBoxPlotModelMapper>
Instantiated By:	VBoxPlotModelMapper
Inherits:	QObject

• List of all members, including inherited members

Properties

firstBoxSetColumn : int firstRow : int lastBoxSetColumn : int

model : QAbstractItemModel* rowCount : int series : QtCharts::QBoxPlotSeries*

Public Functions

	QVBoxPlotModelMapper(QObject *parent = nullptr)
int	firstBoxSetColumn() const
int	firstRow() const
int	lastBoxSetColumn() const
QAbstractItemModel *	model() const
int	rowCount() const
QBoxPlotSeries *	series() const
void	setFirstBoxSetColumn(int firstBoxSetColumn)
void	setFirstRow(int firstRow)
void	setLastBoxSetColumn(int lastBoxSetColumn)
void	setModel(QAbstractItemModel *model)
void	setRowCount(int rowCount)
void	setSeries(QBoxPlotSeries *series)

Signals

void	firstBoxSetColumnChanged()
void	firstRowChanged()
void	lastBoxSetColumnChanged()
void	modelReplaced()
void	rowCountChanged()
void	seriesReplaced()

Detailed Description

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 a QBoxPlotSeries object, so that each column in the data model defines a box-and-whiskers item and each row 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 bar 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.

See also QHBoxPlotModelMapper.

Member Function Documentation

QVBoxPlotModelMapper::QVBoxPlotModelMapper(QObject *parent = nullptr)

Constructs a mapper object that is a child of parent.

[signal] void QVBoxPlotModelMapper::firstBoxSetColumnChanged()

This signal is emitted when the first box-and-whiskers item column changes.

Note: Notifier signal for property firstBoxSetColumn.

[signal] void QVBoxPlotModelMapper::firstRowChanged()

This signal is emitted when the first row changes.

Note: Notifier signal for property firstRow.

[signal] void QVBoxPlotModelMapper::lastBoxSetColumnChanged()

This signal is emitted when the last box-and-whiskers item column changes.

Note: Notifier signal for property lastBoxSetColumn.

[signal] void QVBoxPlotModelMapper::modelReplaced()

This signal is emitted when the model that the mapper is connected to changes.

Note: Notifier signal for property model.

[signal] void QVBoxPlotModelMapper::rowCountChanged()

This signal is emitted when the number of rows changes.

Note: Notifier signal for property rowCount.

[signal] void QVBoxPlotModelMapper::seriesReplaced()

This signal is emitted when the series that the mapper is connected to changes.

Note: Notifier signal for property series.