Feature pull request: Mutable SVG object in runtime

[wonson]

I modify your code to make the SVG mutable, Including:

• public your svg tag classes and value type class (user may new and modify from outside)
• add saveSVGState and restoreSVGState (like push and pop), restoreOriginalSVGState (Like openGL load identity) etc.

Please take a look.

I followed you from GoogleCode. You said you will parse it to DOM-tree, I dunno if it is still on. But may be you can accept this first and let people do these things first. After you finish the DOM-tree implementation, you can level up your version to 2.x.x

[BigBadaboom]

Hi. Thanks for posting this. This is an interesting patch. I'm curious how you are using these changes yourself. What is it enabling you to do that you couldn't do before?

[wonson]

I have 2 major usage:

• Change color in runtime
• Draw only specified group with "display" attribute (so that I can draw sprite with common in different frame. Imagine that how u make a gif animation by enabling various layers in different frame)

After the change is set, I render the SVG object into picture, then restore original SVG state and the another change, and so on.

[wonson]

But the code is not thoroughly tested. I only use it with some tags I've used. You'd better test the code more with your own test case. :P

[ultimate-deej]

This is definitely stale, but it would still be a useful feature. CSS customization is an option, but a very limited one. Mutable SVG objects could potentially provide much more flexibiltiy, along with a more natural programmatic way of doing so (as opposed to css strings).