Implementation: Scrollable JSVGCanvas

[Zach Del <zs...@umich.edu>]

After finding no implementation of any scrolling (or scrollable) 
JSVGCanvas, I have made my own. I know that there is at least some 
interest in one, as someone on the list wanted such code a few months ago.

I just wanted to make the code available to anyone who wants it; it's 
about 5k zipped (I'm not sure if I can attach it and send it over the 
list? if so, I can do that). If anyone who uses it makes any 
improvements or fixes any bugs, I would appreciate knowing about it.

It is very easy to use, and involves a drop-in replacement for 
JSVGCanvas, called JSVGScrollCanvas, and a special JViewport (called 
JSVGViewport) which handles the scrolling. All scrolling is done via 
affine transforms, and peacefully coexists with tranformations such as 
zooming and other actions such as shift-drag panning and control-drag 
zooming. Usage instructions are contained in the Javadoc.

I've tested it under Batik 1.5rc2 only, but will probably work with 
earlier versions. It does work with dynamic documents.

Zach


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Re: Implementation: Scrollable JSVGCanvas

[Vincent Hardy <vi...@sun.com>]

Zach,

Thanks for being willing to share your code. 

As a rule of thumb, it is better to post your file on a web site so 
that people can have a look at it.

But if your file is small, I think it is ok to send it to the list
(people have sent fairly large raster images to this list and there were
not complaints, even though it should not start a trend :-).

Thanks!
Vincent.

Zach Del wrote:
> 
> After finding no implementation of any scrolling (or scrollable)
> JSVGCanvas, I have made my own. I know that there is at least some
> interest in one, as someone on the list wanted such code a few months ago.
> 
> I just wanted to make the code available to anyone who wants it; it's
> about 5k zipped (I'm not sure if I can attach it and send it over the
> list? if so, I can do that). If anyone who uses it makes any
> improvements or fixes any bugs, I would appreciate knowing about it.
> 
> It is very easy to use, and involves a drop-in replacement for
> JSVGCanvas, called JSVGScrollCanvas, and a special JViewport (called
> JSVGViewport) which handles the scrolling. All scrolling is done via
> affine transforms, and peacefully coexists with tranformations such as
> zooming and other actions such as shift-drag panning and control-drag
> zooming. Usage instructions are contained in the Javadoc.
> 
> I've tested it under Batik 1.5rc2 only, but will probably work with
> earlier versions. It does work with dynamic documents.
> 
> Zach
> 
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> To unsubscribe, e-mail: batik-users-unsubscribe@xml.apache.org
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