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Posted to fop-dev@xmlgraphics.apache.org by bu...@apache.org on 2007/10/29 12:17:00 UTC

DO NOT REPLY [Bug 43712] - Collapsed borders on tables in tables not considered to lie half in the before and after margins

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http://issues.apache.org/bugzilla/show_bug.cgi?id=43712


vincent.hennebert@anyware-tech.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
          Component|fo tree                     |page-master/layout
            Summary|Unexplained bottom margin in|Collapsed borders on tables
                   |certain circumstances       |in tables not considered to
                   |                            |lie half in the before and
                   |                            |after margins




------- Additional Comments From vincent.hennebert@anyware-tech.com  2007-10-29 04:17 -------
Hi Isaac,

thanks for reporting the problem. This is not related to bug 43616. I strongly
suspect that this is due to the fact that collapsed borders are not considered
to lie half in the before and after margin for tables which are inside another
table. You can circumvent the problem by specifying border-collapse="separate"
on the inner tables. You will have to rework your border specifications a bit,
but you should still be able to achieve the layout you need. Please ask on
fop-users if you need more explanations.

Details: the merging algorithm seems to forget that the border-before/after on a
table with collapsing borders lie half in the margin. Thus the total size of the
merged sequence is bigger than expected, and overflows the page size. Whereas
when adding the areas, borders are actually put half in the margins, so that on
the visual results it looks like there is still room for the last 2 lines.

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