[swfmill] Group transform attribute

[Paul Colomiets]

Gerrit . wrote:
> [...]
>
> I am currently concentrating on Batik programming, but if you would like to try and implement such a function, I'll be glad to help.
Yes, I'd like. Patch attached. It combines two transforms into one by 
multiplicating matrices with C function, just as you suggested.
swft:transform2, gives two transform specification and produces tag just 
like swft:tranform. Patch includes test case, which looks same with both 
versions (trunk and patched), but "wrap-element" test (in scriptout text 
field) shows difference.

The problems I've found:
1. svg:use which links to svg:use is not even present in the clip (both 
in trunk and my version). I don't know how to handle it recursively
2. I want inkscape's transformation center to be origin of movie clip 
(possibly optionally), but the problem is that it's bound to center of 
object, but I have no great ideas how to find that point (traversing of 
whole tree of contained objects probably not good option)

Any comments and pointers are welcome.

--
Paul.
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