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Posted to dev@poi.apache.org by bu...@apache.org on 2021/11/29 15:55:38 UTC

[Bug 65712] New: Missing Diagram relations when merging presentations

https://bz.apache.org/bugzilla/show_bug.cgi?id=65712

            Bug ID: 65712
           Summary: Missing Diagram relations when merging presentations
           Product: POI
           Version: 5.0.x-dev
          Hardware: PC
            Status: NEW
          Severity: normal
          Priority: P2
         Component: XSLF
          Assignee: dev@poi.apache.org
          Reporter: vadim.zav@storied.co
  Target Milestone: ---

I'm trying to merge two presentations (using example from the XSLF Cookbook)
with the SmartArts inside and getting corrupted presentation as result
(PowerPoint says: "PowerPoint found a problem with content in merged.pptx")

After troubleshooting I've found that diagram relations is missing in the
slideslide2.xml.rels file.
Problem is caused by XSLFSheet::importPart() method which checks existence of
package part and skip creation of new relation for diagrams.

Code:
XMLSlideShow ppt = new XMLSlideShow();
String[] pptx = {"diagram.pptx", "diagram1.pptx"};

for(String arg : pptx){
    XMLSlideShow  src = XSLFTestDataSamples.openSampleDocument(arg);

    for(XSLFSlide srcSlide : src.getSlides()){
        ppt.createSlide().importContent(srcSlide);
    }
}

FileOutputStream out = new FileOutputStream("merged.pptx");
ppt.write(out);
ppt.close();

Call stack:
importPart:679, XSLFSheet (org.apache.poi.xslf.usermodel)
copyDiagram:257, XSLFGraphicFrame (org.apache.poi.xslf.usermodel)
copy:213, XSLFGraphicFrame (org.apache.poi.xslf.usermodel)
wipeAndReinitialize:455, XSLFSheet (org.apache.poi.xslf.usermodel)
importContent:434, XSLFSheet (org.apache.poi.xslf.usermodel)
importContent:293, XSLFSlide (org.apache.poi.xslf.usermodel)
testMergeSlidesWithDiagram:206, TestXSLFSlide (org.apache.poi.xslf.usermodel)

I would like if someone looks at this issue and try to fix or provide details
on how this bug should be fixed.

Thank you.

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[Bug 65712] Missing Diagram relations when merging presentations

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=65712

--- Comment #1 from Vadim <va...@storied.co> ---
Created attachment 38110
  --> https://bz.apache.org/bugzilla/attachment.cgi?id=38110&action=edit
Sample presentations with diagrams

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[Bug 65712] Missing Diagram relations when merging presentations

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=65712

PJ Fanning <fa...@yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |INFORMATIONPROVIDED
             Status|NEW                         |RESOLVED

--- Comment #3 from PJ Fanning <fa...@yahoo.com> ---
https://bz.apache.org/bugzilla/show_bug.cgi?id=66176 might help - will close
this. Please reopen if #66176 does not help.

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[Bug 65712] Missing Diagram relations when merging presentations

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=65712

PJ Fanning <fa...@yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 OS|                            |All

--- Comment #2 from PJ Fanning <fa...@yahoo.com> ---
A previous issue on stackoverflow on
https://stackoverflow.com/questions/54556729/merging-powerpoint-presentations-using-apache-poi-doesnt-work-well-with-charts

There are not people working the XSLF code base and it may be a case of the
person who has the issue fixing it and submitting it for the benefit of other
users.

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