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https://issues.apache.org/jira/browse/FOP-2293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13937934#comment-13937934
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Seifeddine Dridi commented on FOP-2293:
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{quote}
On the other hand, if the penalty is not selected (because none of its variant 
would fit on the page), then the glue will correctly be taken into account on 
the following page. So, the dynamic content will appear at the beginning of the 
next page. This is illustrated in the 3rd page-sequence in the 
multi-switch_best-fit_multiple-variants.xml test case that was added to the 
patch.
{quote}

That's not what I want. The glue must be skipped if none of the variants fit in 
the current page. I mean this is the main goal of this extension, we evaluate a 
dynamic content given the remaining space in the current page then we make a 
decision either to discard the dynamic content or include one of its variants.

> Whitespace management extension
> -------------------------------
>
>                 Key: FOP-2293
>                 URL: https://issues.apache.org/jira/browse/FOP-2293
>             Project: Fop
>          Issue Type: New Feature
>          Components: general
>    Affects Versions: trunk
>            Reporter: Seifeddine Dridi
>            Priority: Minor
>              Labels: XSL-FO
>             Fix For: trunk
>
>         Attachments: FO_multi-switch_best-fit_ext_rev2.patch, 
> FO_multi-switch_best-fit_ext_rev3.patch, 
> FO_multi-switch_best-fit_ext_rev4.patch, 
> FO_multi-switch_best-fit_ext_rev5.patch, 
> FO_multi-switch_best-fit_ext_rev6.patch, 
> FO_multi-switch_best-fit_ext_rev7.patch, 
> FO_multi-switch_best-fit_ext_rev8.patch, FO_multi-switch_test.fo, 
> FO_multi-switch_with_best-fit_extension.patch, bestfit.fo, doc.pdf, 
> multi-switch-testcases.zip, multi-switch_bestfit.fo, 
> multiple-feasible-nodes.fo, patch-rev1.1.patch, patch-rev1.patch, 
> patch-rev2.patch, patch.patch, two-valid-variants.fo
>
>
> I have been working on an extension for whitespace management, similar to 
> what's described here: 
> http://wiki.apache.org/xmlgraphics-fop/WhitespaceManagement
> The logic of the extension is very simple: the user defines a set of 
> alternatives that he wishes to insert at the end of a page, then if there is 
> enough space left, FOP will pick the alternative that best matches the user's 
> selection criteria (first fit, smallest fit, biggest fit).
> This is my first work on FOP and it took me almost 2 months to reach this 
> stage in development. But it's not the end of course, so I'm relying on your 
> feedback to improve it.
> Thank you



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