Re: [docbook-apps] dbfo-need height in FOP 1.0

[Sam Fischmann <sam.fischmann@gmail.com>]

Hi Bob,

Thanks for the information. Along with reading your email, I did some
experimentation on my own, and the result is that I have a bit better
understanding of keeps and space in XSL:FO.

-Sam

On Fri, Jul 23, 2010 at 4:36 PM, Bob Stayton <bobs@sagehill.net> wrote:
> Hi Sam,
> Actually, you prompted me to revisit this feature.  A block-container was
> used because you can set a fixed height on it to take up the needed space,
> and a regular block does not.  However, I thought I would try a table with a
> single row whose block-progression-dimension is set to the height, and that
> does work in FOP 0.95 and 1.0.
>
> However, the other part of the need template is managing the vertical space
> so that it does not introduce extra space.  And FOP 1.0 does not support
> space-after.precedence="force", so it cannot properly manage the space.  The
> visual result is that a section heading that is bumped to the next page will
> express its space-before value before the heading.  This leads to too much
> space at the top of the page.
>
> Normally a space-before property is suppressed on the first block on a page,
> so the heading would appear at the top without its space-before.  But the
> dbfo-need blocks interfere with that because they become the first block of
> text on the page.  What should happen is that the last dbfo-need block sets
> space-after="0pt" and space-after.precedence="force", whose effect is to
> override the heading block's space-before value.  However, the
> space-after.precedence="force" does not yet work in FOP, so you get the
> extra space.
>
> So FOP is closer to supporting this feature, but not quite there yet.
>
> Bob Stayton
> Sagehill Enterprises
> bobs@sagehill.net
>
>
> ----- Original Message ----- From: "Sam Fischmann" <sam.fischmann@gmail.com>
> To: "deannelson" <deannelson@aol.com>
> Cc: <docbook-apps@lists.oasis-open.org>
> Sent: Friday, July 23, 2010 2:04 PM
> Subject: Re: [docbook-apps] dbfo-need height in FOP 1.0
>
>
> I just gave this a shot and it did not appear to work in FOP 1.0.
> I also see that they haven't added XSL-FO 1.1 indexing extensions, yet.
>
> Is there any reason that this PI has to work using the block-container
> trick? If you made a processing instruction that created a regular
> block that had both a keep-with-next.within-column="always" and
> keep-with-previous.within-column="always"?
>
> -Sam
>
> On Fri, Jul 23, 2010 at 12:14 PM, deannelson <deannelson@aol.com> wrote:
>>
>> All,
>>
>> Does anyone know if the docbook stylesheets method for "dbfo-need height"
>> is
>> now supported in the new FOP 1.0 release?
>>
>> I know it was broke in the 0.93 & .0.95 releases.
>>
>> Regards,
>> Dean Nelson
>
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