On Fri, 21 Jun 2024 22:07:22 GMT, Markus Mack <mm...@openjdk.org> wrote:

>> This PR provides the test case given in the JBS issue, and a simple fix for 
>> the index calculation when inserting data after previous data with duplicate 
>> categories.
>> 
>> Also, I've added a comment to `BarChart`s javadoc, clarifying the behavior 
>> that was apparently assumed (but broken) previously.
>> 
>> The index lookup is skipped for performance reasons if there are no 
>> duplicates, corresponding to the previous implementation.
>> Further optimizations would be possible, but probably are not really helpful 
>> without more extensive changes. The previous code already loops over all 
>> categories to check if they are present, typically nested in a loop adding 
>> many data items, thus already scaling quadratically when adding lots of 
>> mostly unique data points.
>
> Markus Mack has updated the pull request incrementally with one additional 
> commit since the last revision:
> 
>   testAddingDataAtIndex & fix

modules/javafx.controls/src/main/java/javafx/scene/chart/BarChart.java line 227:

> 225:                 var uniqueCategories = new HashSet<String>();
> 226:                 for (var entry : seriesCategoryMap.entrySet()) {
> 227:                     Series s = entry.getKey();

would it make sense to add a comment explaining the reasoning for this more 
complex code?

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PR Review Comment: https://git.openjdk.org/jfx/pull/1476#discussion_r1649465456

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