https://issues.apache.org/bugzilla/show_bug.cgi?id=51196

             Bug #: 51196
           Summary: [PATCH] Patch to simplify XSSFChart creation
           Product: POI
           Version: 3.8-dev
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: XSSF
        AssignedTo: [email protected]
        ReportedBy: [email protected]
    Classification: Unclassified


Created attachment 26995
  --> https://issues.apache.org/bugzilla/attachment.cgi?id=26995
A patch based on 735dd86ac48481cfe6350d92997514e2aa7dee21 git revision

I need to insert charts in xslx documents, and at the moment (as I can see) POI
does not have support for that. So I write a simple patch to simplify chart
creation process. I have tried to adopt my changes to existing code (I use git
repo on GitHub). At the moment the data model is the following:

XSSFDrawing -- creates -- XSSFChart -- has -- XSSFChartLabel
                            |
                        belongs to
                            |
                       XSSFGraphicFrame

I have also add a simple test for new functionality. But the more interesting
thing is that those changes do the thing: generated xlsx file with scetter
chart is attached (low-level client code is still required for that, the next
step is to provide appropriate API).

I am not a POI hacker and this is my first patch so any feedback will be
helpful.

POI is a great thing, lets improve it )

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