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Posted to fop-dev@xmlgraphics.apache.org by bu...@apache.org on 2006/01/02 20:27:23 UTC

DO NOT REPLY [Bug 38102] New: - Overflow of output in region-body if there is space-after.optimum

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           Summary: Overflow of output in region-body if there is space-
                    after.optimum
           Product: Fop
           Version: 1.0dev
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: major
          Priority: P2
         Component: page-master/layout
        AssignedTo: fop-dev@xmlgraphics.apache.org
        ReportedBy: mplomer@gmx.de


I have the following problem in the actual SVN version (2006-01-02):
I render a FO document and FOP writes text beyond the bottom of the region-body
area.
After some testing I found out that this happens, if one ore more <fo:block>'s
have the space-before.optimum or space-after.optimum attribute. For space-before
or space-after (without ".optimum") it works fine.
The space itself occurs right, but it seems that the space isn't added to the
"space consumed by the page", and then the output overflows the region-body.

I will attach a sample-fo-file

Ciao
Mark

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DO NOT REPLY [Bug 38102] - Overflow of output in region-body if there is space-after.optimum

Posted by bu...@apache.org.
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------- Additional Comments From mplomer@gmx.de  2006-01-02 20:30 -------
Created an attachment (id=17308)
 --> (http://issues.apache.org/bugzilla/attachment.cgi?id=17308&action=view)
Shows the overflow


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DO NOT REPLY [Bug 38102] - Overflow of output in region-body if there is space-after.optimum

Posted by bu...@apache.org.
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jeremias@apache.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED




------- Additional Comments From jeremias@apache.org  2006-01-04 17:00 -------
Bug fixed: http://svn.apache.org/viewcvs?rev=365928&view=rev

But this only fixes this particular problem with fo:block. I will need to check
all the other FOs, too.

The problem was that BlockLayoutManager did not promote the space adjust value
to its child layout managers via the LayoutContext. If you specify the
space-before using only a space-before.optimum, the space may shrink to 0pt if
necessary (.minimum is 0pt by default). In your example, the page breaker tried
to make the space smaller to make a better page break decision, but the code
that generates the areas did not properly respect the breaker's decision.

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DO NOT REPLY [Bug 38102] - Overflow of output in region-body if there is space-after.optimum

Posted by bu...@apache.org.
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mplomer@gmx.de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED




------- Additional Comments From mplomer@gmx.de  2006-01-04 18:55 -------
Wow ... that was really fast :-)
I've recompiled FOP from SVN an it works.

Now I better understand the handling of
space-after.optimum. The text "This text
should be on the next page" in the sample
is of course not correct.

Thank you.

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