內容

• 特性
• 公共函數
• 信號
• 詳細描述

QHPieModelMapper 類

The QHPieModelMapper is a horizontal model mapper for pie series. 更多...

頭：	#include <QHPieModelMapper>
實例化：	HPieModelMapper
繼承：	QPieModelMapper

• 所有成員列錶，包括繼承成員

特性

columnCount : int firstColumn : int labelsRow : int

model : QAbstractItemModel * series : QPieSeries * valuesRow : int

• 1 特性繼承自 QObject

公共函數

	QHPieModelMapper (QObject * parent = Q_NULLPTR)
int	columnCount () const
int	firstColumn () const
int	labelsRow () const
QAbstractItemModel *	model () const
QPieSeries *	series () const
void	setColumnCount (int columnCount )
void	setFirstColumn (int firstColumn )
void	setLabelsRow (int labelsRow )
void	setModel (QAbstractItemModel * model )
void	setSeries (QPieSeries * series )
void	setValuesRow (int valuesRow )
int	valuesRow () const

• 32 公共函數繼承自 QObject

信號

void	columnCountChanged ()
void	firstColumnChanged ()
void	labelsRowChanged ()
void	modelReplaced ()
void	seriesReplaced ()
void	valuesRowChanged ()

• 2 信號繼承自 QObject

額外繼承成員

• 1 公共槽繼承自 QObject
• 11 靜態公共成員繼承自 QObject
• 14 保護函數繼承自 QPieModelMapper
• 9 保護函數繼承自 QObject

詳細描述

The QHPieModelMapper is a horizontal model mapper for pie series.

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 horizontal model mapper is used to create a connection between a data model and QPieSeries , so that each column in the data model defines a pie slice and each row maps to the label or the value of the pie slice.

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

特性文檔編製

columnCount : int

This property holds the number of columns of the model that are mapped as the data for the pie series.

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

訪問函數：

int	columnCount () const
void	setColumnCount (int columnCount )

通知程序信號：

void	columnCountChanged ()

firstColumn : int

This property holds the column of the model that contains the first slice value.

最小且默認值為 0。

訪問函數：

int	firstColumn () const
void	setFirstColumn (int firstColumn )

通知程序信號：

void	firstColumnChanged ()

labelsRow : int

This property holds the row of the model that is kept in sync with the labels of the pie's slices.

默認值為 -1 (無效映射)。

訪問函數：

int	labelsRow () const
void	setLabelsRow (int labelsRow )

通知程序信號：

void	labelsRowChanged ()

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 ()

series : QPieSeries *

This property holds the pie 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：

QPieSeries *	series () const
void	setSeries (QPieSeries * series )

通知程序信號：

void	seriesReplaced ()

valuesRow : int

This property holds the row of the model that is kept in sync with the values of the pie's slices.

默認值為 -1 (無效映射)。

訪問函數：

int	valuesRow () const
void	setValuesRow (int valuesRow )

通知程序信號：

void	valuesRowChanged ()

成員函數文檔編製

QHPieModelMapper:: QHPieModelMapper ( QObject * parent = Q_NULLPTR)

構造映射器對象為子級化 parent .

[signal] void QHPieModelMapper:: columnCountChanged ()

This signal is emitted when the number of columns changes.

注意： 通知程序信號對於特性 columnCount .

[signal] void QHPieModelMapper:: firstColumnChanged ()

This signal is emitted when the first column changes.

注意： 通知程序信號對於特性 firstColumn .

int QHPieModelMapper:: labelsRow () const

Returns the row of the model that is kept in sync with the labels of the pie's slices.

注意： getter 函數對於特性 labelsRow .

另請參閱 setLabelsRow ().

[signal] void QHPieModelMapper:: labelsRowChanged ()

This signal is emitted when the labels row changes.

注意： 通知程序信號對於特性 labelsRow .

[signal] void QHPieModelMapper:: 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 QHPieModelMapper:: 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 .

void QHPieModelMapper:: setLabelsRow ( int labelsRow )

Sets the model row that is kept in sync with the pie slices' labels to labelsRow .

注意： setter 函數對於特性 labelsRow .

另請參閱 labelsRow ().

void QHPieModelMapper:: setValuesRow ( int valuesRow )

Sets the model row that is kept in sync with the pie slices' values to valuesRow .

注意： setter 函數對於特性 valuesRow .

另請參閱 valuesRow ().

int QHPieModelMapper:: valuesRow () const

Returns the row of the model that is kept in sync with the values of the pie's slices.

注意： getter 函數對於特性 valuesRow .

另請參閱 setValuesRow ().

[signal] void QHPieModelMapper:: valuesRowChanged ()

This signal is emitted when the values row changes.

注意： 通知程序信號對於特性 valuesRow .