Repainting a GVT tree

[Andy Ames <ag...@surfnetusa.com>]

How do I repaint a GVT tree in a JSVGCanvas without rebuilding the GVT tree
from the SVG DOM?

The Javadoc for JSVGComponent illustrates the following rendering steps:

1) Building DOM
2) Building GVT
3) Execute SVGLoad events
4) Rendering GVT
5) Update threads started

My question is, how do I re-execute step 4?

Thanks.
Andy


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RE: Repainting a GVT tree

[Thierry Kormann <tk...@ilog.fr>]

> How do I repaint a GVT tree in a JSVGCanvas without rebuilding
> the GVT tree
> from the SVG DOM?
>
> The Javadoc for JSVGComponent illustrates the following rendering steps:
>
> 1) Building DOM
> 2) Building GVT
> 3) Execute SVGLoad events
> 4) Rendering GVT
> 5) Update threads started
>
> My question is, how do I re-execute step 4?

You should find what you want in the JGVTComponent under the batik.swing.gvt
package. Everything is protected (that's one of our design rule :)

Thierry.



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RE: Repainting a GVT tree

[Stephane Hillion <sh...@ilog.fr>]

> From: Andy Ames [mailto:agames@surfnetusa.com]
> Sent: Saturday, March 30, 2002 12:24 AM
> To: Batik Users
> Subject: Repainting a GVT tree
>
>
> How do I repaint a GVT tree in a JSVGCanvas without rebuilding
> the GVT tree
> from the SVG DOM?
>
> The Javadoc for JSVGComponent illustrates the following rendering steps:
>
> 1) Building DOM
> 2) Building GVT
> 3) Execute SVGLoad events
> 4) Rendering GVT
> 5) Update threads started
>
> My question is, how do I re-execute step 4?

The step 5 handles the repaint of GVT (if the changes to GVT where caused by
a change to the DOM tree), so it is not needed to re-execute step 4.

If nothing happen when you modify the DOM tree, it is perhaps because:

- the component has detected that the document is static. To prevent that,
call JSVGComponent.setDocumentState(JSVGComponent.ALWAYS_DYNAMIC) method
before loading or setting your document,

- you are modifying GVT directly. JSVGComponent cannot handle this case,

- you are trying to modify some style properties with Batik 1.5beta1. Get
the current CVS version, it will probably work.


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