FUIChartSummaryDataSource

public protocol FUIChartSummaryDataSource : AnyObject

Data source for FUIChartSummaryView. Optionally, supply a summary item for the category.

Important

the FUIChartSummaryDataSource will query for a summary item for categoryIndex = -1. This item will be displayed at the far left, and should typically contain aggregate info.


                      
                      
                      chartSummaryView(_:summaryItemForCategory:)

Default implementation

Returns an optional FUIChartSummaryItem for a category index

Default Implementation

This default implementation always returns nil.

Declaration

Swift

func chartSummaryView(_ chartSummaryView: FUIChartSummaryView, summaryItemForCategory categoryIndex: Int) -> FUIChartSummaryItem?

Parameters

`chartSummaryView`	The chart summary view of type `FUIChartSummaryView`
`categoryIndex`	The summary item for the category

Return Value

optional item summarizing the category values of series in a chart.


                      
                      
                      chartSummaryView(_:summaryItemForCategoryRange:)

Default implementation

Returns an optional FUIChartRangeSummaryItem for a category range

Default Implementation

This default implementation always returns nil.

Declaration

Swift

func chartSummaryView(_ chartSummaryView: FUIChartSummaryView, summaryItemForCategoryRange categoryRange: ClosedRange<Int>) -> FUIChartRangeSummaryItem?

Parameters

`chartSummaryView`	The chart summary view of type `FUIChartSummaryView`
`categoryRange`	The summary item for the category range

Return Value

optional item summarizing the category values of series in a chart.


                      
                      
                      chartView(_:summaryItemForCategory:)

Default implementation

Returns an optional FUIChartSummaryItem for a category index

Default Implementation

This default implementation always returns nil.

Declaration

Swift

@available(*, deprecated, renamed: "chartSummaryView(_:summaryItemForCategory:﹚")
func chartView(_ chartView: FUIChartView, summaryItemForCategory categoryIndex: Int) -> FUIChartSummaryItem?

Parameters

`chartView`	The chart view of type `FUIChartView`
`categoryIndex`	The summary item for the category

Return Value

optional item summarizing the category values of series in a chart.


                      
                      
                      chartView(_:summaryItemForCategoryRange:)

Default implementation

Returns an optional FUIChartRangeSummaryItem for a category range

Default Implementation

This default implementation always returns nil.

Declaration

Swift

@available(*, deprecated, renamed: "chartSummaryView(_:summaryItemForCategoryRange:﹚")
func chartView(_ chartView: FUIChartView, summaryItemForCategoryRange categoryRange: ClosedRange<Int>) -> FUIChartRangeSummaryItem?

Parameters

`chartView`	The chart view of type `FUIChartView`
`categoryRange`	The summary item for the category range

Return Value

optional item summarizing the category values of series in a chart.