It'll kinda of be self documented when I publish my code (after
finals, as always -- sorry).
Cheers,
Tyler
Back to Evidence, bah.
On 5/5/06, Geert Bevin <[EMAIL PROTECTED]> wrote:
Oh, btw, guys. This is not the first time I get this question. If
someone would like to write it up and put it on the wiki, that would
be great!
On 06 May 2006, at 04:13, Geert Bevin wrote:
> Hi David,
>
> this is not possible as an embedded element, since you can't embed
> the actual content of a PNG image inside HTML text. You'll first
> have to write an embedded element that outputs the <img src="..." /
> > tag. After that you'll have to write an element that handles the
> response to src="..." attribute. I encourage you to not hard-code
> the URL of the src attribute, but detect the URL of the image URL:
> getSite().resolveId("PngImageElement", getElementInfo()).getUrl()
>
> The very above looks it up relative to the current element, you can
> also look it up absolutely, like this:
> getSite().resolveId(".Pub.Binary.PngImageElement").getUrl()
>
> The relative one is better though. Just a small note (which you
> maybe don't know), dots separate the sub-sites, and '^' goes one
> level up. So consider your current element's ID is
> '.Pub.Portal.PngImage' and you want the refer relatively to the
> image element, you'll write '^^Binary.PngImageElement'.
>
> That image element is very servlet-like. If your content-type is
> fixed (ie. always png), set is during the declaration of your
> element (contenttype attribute). If it's dynamic, set the
> contenttype attribute to "" (empty), and use setContentType("image/
> png") inside the element implementation. After doing that, you can
> obtain the binary OutputStream with getOutputStream() and stream
> anything through it.
>
> Hope this helps,
>
> Geert
>
> On 05 May 2006, at 19:10, David Herbert wrote:
>
>> Hello,
>>
>> I wonder whether there is provision in RIFE for an element which
>> writes out content as a binary stream e.g. a PNG image
>> representing a graph or chart created with a charting package? I
>> can create a page with an embedded element which creates the
>> chart, I'm just stuck as to how to output the PNG data using RIFE
>> functionality. I know how to do this using HttpServletResponse e.g:
>>
>> BufferedImage image = ImageIO.read( url );
>> response.setContentType( "png" );
>> ImageIO.write( image, "png", out );
>>
>> However I don't think this is right here - anyone point me in the
>> right direction?
>>
>> Thanks,
>>
>> David Herbert.
>> _______________________________________________
>> Rife-users mailing list
>> [email protected]
>> http://lists.uwyn.com/mailman/listinfo/rife-users
>>
>
> --
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> gbevin at uwyn dot com Tel: +32 64 84 80 03 Mobile: +32 477 302 599
>
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>
--
Geert Bevin Uwyn bvba GTalk: [EMAIL PROTECTED]
"Use what you need" Avenue de Scailmont 34 Skype: gbevin
http://www.uwyn.com 7170 Manage, Belgium AIM: geertbevin
gbevin at uwyn dot com Tel: +32 64 84 80 03 Mobile: +32 477 302 599
PGP Fingerprint : 4E21 6399 CD9E A384 6619 719A C8F4 D40D 309F D6A9
Public PGP key : available at servers pgp.mit.edu, wwwkeys.pgp.net
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