QVCandlestickModelMapper Class▲
-
Header: QVCandlestickModelMapper
-
Since: Qt 5.8
-
Inherited By:
-
Instantiated By: qml-qtcharts-vcandlestickmodelmapper.xml
-
Inherits: QCandlestickModelMapper
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▲
Property Documentation▲
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).
Access functions:
-
int closeRow() const
-
void setCloseRow(int closeRow)
Notifier signal:
-
void closeRowChanged()
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).
Access functions:
-
int firstSetColumn() const
-
void setFirstSetColumn(int firstSetColumn)
Notifier signal:
-
void firstSetColumnChanged()
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).
Access functions:
-
int highRow() const
-
void setHighRow(int highRow)
Notifier signal:
-
void highRowChanged()
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).
Access functions:
-
int lastSetColumn() const
-
void setLastSetColumn(int lastSetColumn)
Notifier signal:
-
void lastSetColumnChanged()
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).
Access functions:
-
int lowRow() const
-
void setLowRow(int lowRow)
Notifier signal:
-
void lowRowChanged()
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).
Access functions:
-
int openRow() const
-
void setOpenRow(int openRow)
Notifier signal:
-
void openRowChanged()
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).
Access functions:
-
int timestampRow() const
-
void setTimestampRow(int timestampRow)
Notifier signal:
-
void timestampRowChanged()
Member Function Documentation▲
[explicit] QVCandlestickModelMapper::QVCandlestickModelMapper(QObject *parent = nullptr)▲
Constructs a vertical model mapper object which is a child of parent.
void QVCandlestickModelMapper::closeRowChanged()▲
Emitted when the row of the model that contains close values is changed.
Notifier signal for property closeRow.
See Also▲
See also closeRow
void QVCandlestickModelMapper::firstSetColumnChanged()▲
Emitted when the column of the model that contains the data of the first item is changed.
Notifier signal for property firstSetColumn.
See Also▲
See also firstSetColumn
void QVCandlestickModelMapper::highRowChanged()▲
Emitted when the row of the model that contains high values is changed.
Notifier signal for property highRow.
See Also▲
See also highRow
void QVCandlestickModelMapper::lastSetColumnChanged()▲
Emitted when the column of the model that contains the data of the last item is changed.
Notifier signal for property lastSetColumn.
See Also▲
See also lastSetColumn
void QVCandlestickModelMapper::lowRowChanged()▲
Emitted when the row of the model that contains low values is changed.
Notifier signal for property lowRow.
See Also▲
See also lowRow
void QVCandlestickModelMapper::openRowChanged()▲
Emitted when the row of the model that contains open values is changed.
Notifier signal for property openRow.
See Also▲
See also openRow
[override virtual] Qt::Orientation QVCandlestickModelMapper::orientation() const▲
Reimplements: QCandlestickModelMapper::orientation() const.
Returns Qt::Vertical. This means that values of the item are read from columns.
void QVCandlestickModelMapper::timestampRowChanged()▲
Emitted when the row of the model that contains timestamp values is changed.
Notifier signal for property timestampRow.
See Also▲
See also timestampRow