Re: cvs commit: xml-fop/src/java/org/apache/fop/layoutmgr BlockLayoutManager.java

["J.Pietschmann" <j3...@yahoo.de>]

gmazza@apache.org wrote:
>   2.) The space-after of a block ending at the bottom of the page is not
>   currently being added to the beginning of the subsequent page.

It shouldn't unless it is explicitely forced.

J.Pietschmann

Re: cvs commit: xml-fop/src/java/org/apache/fop/layoutmgr BlockLayoutManager.java

["J.Pietschmann" <j3...@yahoo.de>]

Glen Mazza wrote:
> Also, just to make sure I understand clearly--when you
> say "force" I think you're referring to
> "conditionality" (retain/discard),

Yes.
IIRC, by default, space-after is discarded if it would
be placed at the end of a reference area (something not
properly done in 0.20.5).

Thanks for the clarification and for getting things moved
in general.

J.Pietschmann

Re: cvs commit: xml-fop/src/java/org/apache/fop/layoutmgr BlockLayoutManager.java

[Glen Mazza <gr...@yahoo.com>]

I don't think I wrote that clearly--our current
implementation in BLM: 

(1) in addAreas(), adds empty blocks to represent
space-before & space-after in one method, and 

(2) in getNextBreakPoss(), reduces the "stackSize"
(BPD or "vertical" allowable writing area) to
compensate for (1) above when generating subsequent
text in another method.  

(2) sometimes happens without (1), resulting in the
stackSize being reduced (i.e., fewer lines of text on
the page) and an empty space occurring at the bottom. 
The implementation needs improvement, such that (1)
and (2) either both occur or neither occur, depending
on the "force" parameter you mention below.

Also, just to make sure I understand clearly--when you
say "force" I think you're referring to
"conditionality" (retain/discard), not "precedence"
(the latter of which does have a "force" value, but I
don't think that what's intended here.)

Here's the space-before & space-after definitions:
http://www.w3.org/TR/2001/REC-xsl-20011015/slice7.html#space-before

The (vague?) definitions of conditionality and
precedence are here:
http://www.w3.org/TR/2001/REC-xsl-20011015/slice4.html#spacecond

Thanks,
Glen

--- "J.Pietschmann" <j3...@yahoo.de> wrote:
> gmazza@apache.org wrote:
> >   2.) The space-after of a block ending at the
> bottom of the page is not
> >   currently being added to the beginning of the
> subsequent page.
> 
> It shouldn't unless it is explicitely forced.
> 
> J.Pietschmann
> 
> 


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