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From "Kais Dukes" ...@kaisdukes.com>
Subject RE: HWPF and HSSF common code?
Date Thu, 04 Mar 2004 22:43:46 GMT
Hi Ryan

Forgive me if I'm mistaken, but it appears that what has been comittied is a
some Escher records, and a graphics objects, all within HSSF + some
examples. Am I wrong -- or is there a standalone package somewhere, that can
be reused, and e.g. plugged into HWPF?

-- Kais

-----Original Message-----
From: Ryan Ackley [mailto:sackley@cfl.rr.com]
Sent: 04 March 2004 19:57
To: POI Developers List
Subject: Re: HWPF and HSSF common code?


I think the common library was the plan from the start. I haven't looked at
the package structure.

-Ryan

----- Original Message -----
From: "Kais Dukes" <kd@kaisdukes.com>
To: "POI Developers List" <poi-dev@jakarta.apache.org>
Sent: Thursday, March 04, 2004 2:33 PM
Subject: HWPF and HSSF common code?


>
> POI Developers,
>
> First of all, I would like to thank you for all your time and effort,
since
> this very useful project that would not have come into existence without
> you, and especially the project founders.
>
> I have a question regarding the Escher layer, and the recent 2.5 release.
To
> the best of my knowledge (please correct me If I am wrong) the Escher
layer
> was adopted from Excel 97 onwards as an office-wide drawing
implementation.
> As such, would it be technically feasible to create a common library for
> POI, i.e. outside of HSSF?
>
> I do releaize that the XLS serialization of drawing objects distributes
the
> Escher stream across multiple records, differing from the normal BIFF
> pattern. I am asking this questios mainly from a design perspective
> (something I am personally interested in) but believe these comments may
be
> fruitful to discuss on POI-Dev. If a common library could be created, we
> could let HWPF and HSSF use the same core drawing code, but let the XLS
and
> DOC serialization do that in their own ways. Could a common object model
> (and possibly API?), make sense for both HWPF and HSSF on this?
>
> Look forward to your comments on this issue, as the drawing library is
> something I would be keen to work on as a first releasable project, having
> not been able to commit any of my other POI contributions yet.
>
> -- Kais
>
>
>
>
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