QVBoxPlotModelMapper 類

QVBoxPlotModelMapper 是用於框形圖係列的垂直模型映射器。 更多...

頭：	#include <QVBoxPlotModelMapper>
實例化：	VBoxPlotModelMapper
繼承：	QObject

• 所有成員列錶，包括繼承成員

特性

firstBoxSetColumn : int firstRow : int lastBoxSetColumn : int

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

公共函數

	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 )

信號

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

詳細描述

模型映射器允許使用的數據模型派生自 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.

另請參閱 QHBoxPlotModelMapper .

特性文檔編製

firstBoxSetColumn : int

This property holds the column of the model that is used as the data source for the first box-and-whiskers item.

默認值為 -1 (無效映射)。

訪問函數：

int	firstBoxSetColumn () const
void	setFirstBoxSetColumn (int firstBoxSetColumn )

通知程序信號：

void	firstBoxSetColumnChanged ()

firstRow : int

This property holds the row of the model that contains the first values of the box-and-whiskers items in the box plot series.

最小且默認值為 0。

訪問函數：

int	firstRow () const
void	setFirstRow (int firstRow )

通知程序信號：

void	firstRowChanged ()

lastBoxSetColumn : int

This property holds the column of the model that is used as the data source for the last box-and-whiskers item.

默認值為 -1 (無效映射)。

訪問函數：

int	lastBoxSetColumn () const
void	setLastBoxSetColumn (int lastBoxSetColumn )

通知程序信號：

void	lastBoxSetColumnChanged ()

model : QAbstractItemModel *

此特性保持映射器使用的模型。

訪問函數：

QAbstractItemModel *	model () const
void	setModel (QAbstractItemModel * model )

通知程序信號：

void	modelReplaced ()

rowCount : int

This property holds the number of rows of the model that are mapped as the data for the box plot series.

The minimum and default value is -1 (number limited to the number of columns in the model).

訪問函數：

int	rowCount () const
void	setRowCount (int rowCount )

通知程序信號：

void	rowCountChanged ()

series : QtCharts::QBoxPlotSeries *

This property holds the box plot series that is used by the mapper.

All the data in the series is discarded when it is set to the mapper. When a new series is specified, the old series is disconnected (but it preserves its data).

訪問函數：

QBoxPlotSeries *	series () const
void	setSeries (QBoxPlotSeries * series )

通知程序信號：

void	seriesReplaced ()

成員函數文檔編製

QVBoxPlotModelMapper:: QVBoxPlotModelMapper ( QObject * parent = nullptr)

構造映射器對象為子級化 parent .

[signal] void QVBoxPlotModelMapper:: firstBoxSetColumnChanged ()

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

注意： 通知程序信號對於特性 firstBoxSetColumn .

[signal] void QVBoxPlotModelMapper:: firstRowChanged ()

This signal is emitted when the first row changes.

注意： 通知程序信號對於特性 firstRow .

[signal] void QVBoxPlotModelMapper:: lastBoxSetColumnChanged ()

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

注意： 通知程序信號對於特性 lastBoxSetColumn .

[signal] void QVBoxPlotModelMapper:: modelReplaced ()

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

注意： 通知程序信號對於特性 model .

[signal] void QVBoxPlotModelMapper:: rowCountChanged ()

This signal is emitted when the number of rows changes.

注意： 通知程序信號對於特性 rowCount .

[signal] void QVBoxPlotModelMapper:: seriesReplaced ()

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

注意： 通知程序信號對於特性 series .

內容

1. 特性

2. 公共函數

3. 信號

4. 詳細描述