QHXYModelMapper Class

The QHXYModelMapper class is a horizontal model mapper for line, spline, and scatter series. More...

Header:	#include <QHXYModelMapper>
Instantiated By:	HXYModelMapper
Inherits:	QXYModelMapper

• List of all members, including inherited members

Properties

columnCount : int firstColumn : int model : QAbstractItemModel*

series : QtCharts::QXYSeries* xRow : int yRow : int

Public Functions

	QHXYModelMapper(QObject *parent = nullptr)
int	columnCount() const
int	firstColumn() const
QAbstractItemModel *	model() const
QXYSeries *	series() const
void	setColumnCount(int columnCount)
void	setFirstColumn(int firstColumn)
void	setModel(QAbstractItemModel *model)
void	setSeries(QXYSeries *series)
void	setXRow(int xRow)
void	setYRow(int yRow)
int	xRow() const
int	yRow() const

Signals

void	columnCountChanged()
void	firstColumnChanged()
void	modelReplaced()
void	seriesReplaced()
void	xRowChanged()
void	yRowChanged()

Detailed Description

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 line, spline, or scatter series and the data model that holds the consecutive data point coordinates on rows.

Both model and series properties can be used to manipulate the data. The model mapper keeps the series and the data model in sync.

See also QVXYModelMapper and QXYSeries.

Member Function Documentation

QHXYModelMapper::QHXYModelMapper(QObject *parent = nullptr)

Constructs a mapper object that is a child of parent.

[signal] void QHXYModelMapper::columnCountChanged()

This signal is emitted when the number of columns changes.

Note: Notifier signal for property columnCount.

[signal] void QHXYModelMapper::firstColumnChanged()

This signal is emitted when the first column changes.

Note: Notifier signal for property firstColumn.

[signal] void QHXYModelMapper::modelReplaced()

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

Note: Notifier signal for property model.

[signal] void QHXYModelMapper::seriesReplaced()

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

Note: Notifier signal for property series.

[signal] void QHXYModelMapper::xRowChanged()

This signal is emitted when the row that contains the x-coordinates of data points changes.

Note: Notifier signal for property xRow.

[signal] void QHXYModelMapper::yRowChanged()

This signal is emitted when the row that contains the y-coordinates of data points changes.

Note: Notifier signal for property yRow.