QHCandlestickModelMapper

The QHCandlestickModelMapper class is a horizontal model mapper for a candlestick series. More…

Synopsis

Functions

• def closeColumn ()

• def firstSetRow ()

• def highColumn ()

• def lastSetRow ()

• def lowColumn ()

• def openColumn ()

• def setCloseColumn (closeColumn)

• def setFirstSetRow (firstSetRow)

• def setHighColumn (highColumn)

• def setLastSetRow (lastSetRow)

• def setLowColumn (lowColumn)

• def setOpenColumn (openColumn)

• def setTimestampColumn (timestampColumn)

• def timestampColumn ()

Signals

• def closeColumnChanged ()

• def firstSetRowChanged ()

• def highColumnChanged ()

• def lastSetRowChanged ()

• def lowColumnChanged ()

• def openColumnChanged ()

• def timestampColumnChanged ()

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 data model and QCandlestickSeries , so that each row in the data model defines a candlestick item and each column maps to the open, high, low, close, and timestamp values of the candlestick item.

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

The model mapper ensures that all the candlestick items in the candlestick series have equal sizes. Therefore, adding or removing a value from a candlestick item causes the same change to be made in all the candlestick items in the candlestick series.

See also

QCandlestickSeries QCandlestickSet QVCandlestickModelMapper

class PySide6.QtCharts.QHCandlestickModelMapper([parent=None])

Parameters

parent – PySide6.QtCore.QObject

Constructs a horizontal model mapper object which is a child of parent.

PySide6.QtCharts.QHCandlestickModelMapper.closeColumn()

Return type

int

This property holds The column of the model that contains the close values of the candlestick items in the series..

The default value is -1 (invalid mapping).

PySide6.QtCharts.QHCandlestickModelMapper.closeColumnChanged()

PySide6.QtCharts.QHCandlestickModelMapper.firstSetRow()

Return type

int

This property holds The row of the model that is used as the data source for the first item..

The default value is -1 (invalid mapping).

PySide6.QtCharts.QHCandlestickModelMapper.firstSetRowChanged()

PySide6.QtCharts.QHCandlestickModelMapper.highColumn()

Return type

int

This property holds The column of the model that contains the high values of the candlestick items in the series..

The default value is -1 (invalid mapping).

PySide6.QtCharts.QHCandlestickModelMapper.highColumnChanged()

PySide6.QtCharts.QHCandlestickModelMapper.lastSetRow()

Return type

int

This property holds The row of the model that is used as the data source for the last item..

The default value is -1 (invalid mapping).

PySide6.QtCharts.QHCandlestickModelMapper.lastSetRowChanged()

PySide6.QtCharts.QHCandlestickModelMapper.lowColumn()

Return type

int

This property holds The column of the model that contains the low values of the candlestick items in the series..

The default value is -1 (invalid mapping).

PySide6.QtCharts.QHCandlestickModelMapper.lowColumnChanged()

PySide6.QtCharts.QHCandlestickModelMapper.openColumn()

Return type

int

This property holds The column of the model that contains the open values of the candlestick items in the series..

The default value is -1 (invalid mapping).

PySide6.QtCharts.QHCandlestickModelMapper.openColumnChanged()

PySide6.QtCharts.QHCandlestickModelMapper.setCloseColumn(closeColumn)

Parameters

closeColumn – int

This property holds The column of the model that contains the close values of the candlestick items in the series..

The default value is -1 (invalid mapping).

PySide6.QtCharts.QHCandlestickModelMapper.setFirstSetRow(firstSetRow)

Parameters

firstSetRow – int

This property holds The row of the model that is used as the data source for the first item..

The default value is -1 (invalid mapping).

PySide6.QtCharts.QHCandlestickModelMapper.setHighColumn(highColumn)

Parameters

highColumn – int

This property holds The column of the model that contains the high values of the candlestick items in the series..

The default value is -1 (invalid mapping).

PySide6.QtCharts.QHCandlestickModelMapper.setLastSetRow(lastSetRow)

Parameters

lastSetRow – int

This property holds The row of the model that is used as the data source for the last item..

The default value is -1 (invalid mapping).

PySide6.QtCharts.QHCandlestickModelMapper.setLowColumn(lowColumn)

Parameters

lowColumn – int

This property holds The column of the model that contains the low values of the candlestick items in the series..

The default value is -1 (invalid mapping).

PySide6.QtCharts.QHCandlestickModelMapper.setOpenColumn(openColumn)

Parameters

openColumn – int

This property holds The column of the model that contains the open values of the candlestick items in the series..

The default value is -1 (invalid mapping).

PySide6.QtCharts.QHCandlestickModelMapper.setTimestampColumn(timestampColumn)

Parameters

timestampColumn – int

This property holds The column of the model that contains the timestamp values of the candlestick items in the series..

The default value is -1 (invalid mapping).

PySide6.QtCharts.QHCandlestickModelMapper.timestampColumn()

Return type

int

This property holds The column of the model that contains the timestamp values of the candlestick items in the series..

The default value is -1 (invalid mapping).

PySide6.QtCharts.QHCandlestickModelMapper.timestampColumnChanged()