[FOP-2582] keep-together.page=<integer> doesn't appear to have an effect

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.1
• Component/s: fo/block
• Environment: Java 64-bit 1.8.0_66 on MacOS X 10.11.3
• Assignee: Unassigned
• Reporter: Matthew Wilson
• Created: 26/Feb/16 18:10
• Updated: 26/Feb/16 18:13

Description

When trying to keep the contents of a block together on one page, I create a block with:

<fo:block keep-together.within-page="100"> ... </fo:block>

This does not seem to have any effect; it is as if the keep-together parameter is still set to "auto".

To reproduce:

Process the attached file, keep-bug.xml. E.g. "fop keep-bug.xml keep-bug.pdf"

Actual result:

"Section 2" of the example content does not start on a new page; instead a page break appears in the middle of section 2, violating the keep-together attribute.

Expected result:

A page break should have been inserted between "section 1" and "section 2" so that "section 2" stays together on a page. This expected result can be demonstrated by changing the keep-together attribute to "always", which demonstrates that it is possible to fit "section 2" on a single page and therefore the integer keep-together constraint should do so.