From: F J Franklin (F.J.Franklin@sheffield.ac.uk)
Date: Thu Aug 15 2002 - 03:34:38 EDT
On Thu, 2002-08-15 at 04:54, F J Franklin wrote:
> the new classes shouldn't affect anyone at the moment; there's an auto*
> option to enable it, but I don't really recommend trying it just yet.
>
> o experimental XAP_Resource & XAP_ResourceManager classes for handling a
> document's images/objects/hyperlinks
I have been thinking a lot lately about writing an XHTML importer/exporter
that can handle CSS, PHP, JavaScript, SVG, MathML, and hyperlinks to
external images/stylesheets.
I think at the moment AbiWord deals with PNG and SVG, and these only as
visible images, but for me there is a need also for multiple non-visible
objects.
(PHP & JavaScript, and indeed processing instructions & comments
generally, will need some kind of marker - click to view/edit - in the
document, maybe club, diamond, heart, spade :-)
So that's one aim of the new class - to handle these various objects.
It will also allow the same object to used in multiple places within a
document, though we'll need to be careful about that.
The second aim is to effectively divorce objects from *references*
to objects. Base64-encoded objects can be grouped at the end of the .abw
file in a list:
...
<resource id="ri_000000">
3ab788346fa6c...
</resource>
<resource id="ri_000001" content/type="image/png">
346fa6c3ab788...
</resource>
<resource id="ri_000002" content/type="text/css">
788346fa6c3ab...
</resource>
</abiword>
and referred to earlier in the object as
<image href="#ri_000001" ... />
(or whatever). And if instead you put
<image href="http://me.com/my.png" ... />
then it doesn't matter; the resource manager will figure out what to do.
Finally, I think the resource manager should be multi-threaded, so that
image download and rendering interferes as little as possible with
document processing. There's nothing more annoying than trying to scroll
through a document and having to pause for 10s each on pages with
images...
Regards, Frank
Francis James Franklin
F.J.Franklin@shef.ac.uk
"No, she really likes me. She told me I look like Britney Spears, and why
would you say that to somebody you don't like?"
--- Elle Woods
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