QVCandlestickModelMapper#

The QVCandlestickModelMapper class is a vertical model mapper for a candlestick series. More…

Synopsis#

Functions#

def closeRow ()
def firstSetColumn ()
def highRow ()
def lastSetColumn ()
def lowRow ()
def openRow ()
def setCloseRow (closeRow)
def setFirstSetColumn (firstSetColumn)
def setHighRow (highRow)
def setLastSetColumn (lastSetColumn)
def setLowRow (lowRow)
def setOpenRow (openRow)
def setTimestampRow (timestampRow)
def timestampRow ()

Signals#

def closeRowChanged ()
def firstSetColumnChanged ()
def highRowChanged ()
def lastSetColumnChanged ()
def lowRowChanged ()
def openRowChanged ()
def timestampRowChanged ()

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 QCandlestickSeries , so that each column in the data model defines a candlestick item and each row 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 QHCandlestickModelMapper

class PySide6.QtCharts.QVCandlestickModelMapper([parent=None])#

Parameters: parent – PySide6.QtCore.QObject

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

PySide6.QtCharts.QVCandlestickModelMapper.closeRow()#

Return type: int

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

The default value is -1 (invalid mapping).

PySide6.QtCharts.QVCandlestickModelMapper.closeRowChanged()#

Emitted when the row of the model that contains close values is changed.

See also

closeRow

PySide6.QtCharts.QVCandlestickModelMapper.firstSetColumn()#

Return type: int

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

The default value is -1 (invalid mapping).

PySide6.QtCharts.QVCandlestickModelMapper.firstSetColumnChanged()#

Emitted when the column of the model that contains the data of the first item is changed.

See also

firstSetColumn

PySide6.QtCharts.QVCandlestickModelMapper.highRow()#

Return type: int

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

The default value is -1 (invalid mapping).

PySide6.QtCharts.QVCandlestickModelMapper.highRowChanged()#

Emitted when the row of the model that contains high values is changed.

See also

highRow

PySide6.QtCharts.QVCandlestickModelMapper.lastSetColumn()#

Return type: int

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

The default value is -1 (invalid mapping).

PySide6.QtCharts.QVCandlestickModelMapper.lastSetColumnChanged()#

Emitted when the column of the model that contains the data of the last item is changed.

See also

lastSetColumn

PySide6.QtCharts.QVCandlestickModelMapper.lowRow()#

Return type: int

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

The default value is -1 (invalid mapping).

PySide6.QtCharts.QVCandlestickModelMapper.lowRowChanged()#

Emitted when the row of the model that contains low values is changed.

See also

lowRow

PySide6.QtCharts.QVCandlestickModelMapper.openRow()#

Return type: int

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

The default value is -1 (invalid mapping).

PySide6.QtCharts.QVCandlestickModelMapper.openRowChanged()#

Emitted when the row of the model that contains open values is changed.

See also

openRow

PySide6.QtCharts.QVCandlestickModelMapper.setCloseRow(closeRow)#

Parameters: closeRow – int

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

The default value is -1 (invalid mapping).

PySide6.QtCharts.QVCandlestickModelMapper.setFirstSetColumn(firstSetColumn)#

Parameters: firstSetColumn – int

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

The default value is -1 (invalid mapping).

PySide6.QtCharts.QVCandlestickModelMapper.setHighRow(highRow)#

Parameters: highRow – int

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

The default value is -1 (invalid mapping).

PySide6.QtCharts.QVCandlestickModelMapper.setLastSetColumn(lastSetColumn)#

Parameters: lastSetColumn – int

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

The default value is -1 (invalid mapping).

PySide6.QtCharts.QVCandlestickModelMapper.setLowRow(lowRow)#

Parameters: lowRow – int

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

The default value is -1 (invalid mapping).

PySide6.QtCharts.QVCandlestickModelMapper.setOpenRow(openRow)#

Parameters: openRow – int

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

The default value is -1 (invalid mapping).

PySide6.QtCharts.QVCandlestickModelMapper.setTimestampRow(timestampRow)#

Parameters: timestampRow – int

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

The default value is -1 (invalid mapping).

PySide6.QtCharts.QVCandlestickModelMapper.timestampRow()#

Return type: int

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

The default value is -1 (invalid mapping).

PySide6.QtCharts.QVCandlestickModelMapper.timestampRowChanged()#

Emitted when the row of the model that contains timestamp values is changed.

See also

timestampRow