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From Roberto Nunnari <roberto.nunn...@supsi.ch>
Subject Re: total per page
Date Wed, 01 Feb 2006 10:41:42 GMT
Hi J.Pietschmann.
Thank you for your reply.

Solution #1 would be good enough for me. As I'm a beginner with
FO, I'd like to ask if you could be kind enough to put me on
the right direction with a short FO-code example.. if you have
no time, even telling me the name of the objects to use would be
a great help to me..

As a beninner I suspect that I should use some kind of static-area
at the bottom of each page where to put the partial total, but
I'd like to hear the word of the experts for the correct way
to go.

Thank you again.

--
Robi

J.Pietschmann wrote:
> Roberto Nunnari wrote:
> 
>> but I also need to have the current total at the end of
>> each page and at the beginnig of each new page in the final
>> pdf document, and here is where I ask for help.
> 
> 
> In general, there is no standard (or easy) way to solve this. FOP
> doesn't do calculations involving data from the content, and OTOH
> there is no way for other tools to know what content is on a page.
> 
> There are solutions in some special cases:
> 1. If you can live with a partial sum from the beginning to the
>  (end of) the current page rather than the total of the current page,
>   you can  use a marker based solution.
> 2. If you can reasonably estimate how much content fits on a page,
>  you can precompute the layout the pages, including the page totals.
> 
> A more flexible solution would be coding a functional extension to FOP
> involving the evaluation of expressions which may refer to marker
> content.
> 
> J.Pietschmann
> 
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