Re: SVG ? for dhtml

Roman Tarantowicz <[email protected]>:
>
> From discussion on this list I realize that is not chosen standard
> for dhtml anygui.

Actually, the dhtml back-end is just a vague plan that Alex has talked
about, and that may never happen. There are two alternatives: One
(that I don't really know much about -- Alex's version) that is
Windows-centric, and, I believe, that uses COM. The other would have a
built-in dedicated webserver and would use JavaScript, CGI, and XHTML.

> You wonder about two alternatives: UIML and XUL
> (am I wrong?).

No, that's something else. We've been talking about adding a XUL
interpreter that will read XUL and construct Anygui objects that can
be rendered in any back-end (including DHTML, if we ever get that).
As for the choice between various XML formats for GUI, adding another
parser for UIML wouldn't be much of a problem, I guess.

But none of this is very urgent until Anygui itself is fully
functional, in my opinion.

> What do you think about SVG?  I've read on slashdot,
> that SVG is become W3C proposed (yet)recommendations.

Yes, but SVG is for graphics. It's very nice, but isn't very relevant
for constructing GUIs. We might add a parser for SVG that drew on a
Canvas or something, but SVG is much more powerful than what we can
hope to implement in the foreseable future, so I don't see this as
very realistic, unless we're talking about a restricted subset.

See Batik and Fop (http://xml.apache.org/batik and
http://xml.apache.org/fop) for some tools for rendering SVG into many
other formats.

[snip]

> Certainly it is not very popular standard yet. On
> http://xml.com/pub/a/2001/11/21/svgtools.html (slightly oldish) is
> written that 3 browsers was working on support for SVG: Mozilla,
> Amaya and X-smiles.

There is a plug-in from Adobe that lets you use SVG with Netscape,
Opera, and Microsoft Internet Explorer (and probably others) too.

> I dont know, if this standard could be linked to widget-based anygui
> architecture.  I dont know more about SVG and I am too weak to
> participate in further discussion about this subject, but I am
> interested if in your opinions SVG is worth considering.

I appreciate the suggestion. I think the best use for SVG in Anygui
would be as a format for saving Canvas objects (along with e.g.
PostScript etc.).

-- 
Magnus Lie Hetland        Practical Python          The Anygui Project
http://hetland.org        http://ppython.com        http://anygui.org


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