hey philippe, thanks for reply. i allready had a look at the FileLibrary. i like it! but i want to save the jpg or png files or any kind of multimedia data directly in the data objects which get rendered. so there is an instance of type 'Form' and which holds an jpg picture file. everything works perfect with gifs. but as soon as jpgs or png or other mime type come into the game its getting difficult.

i want the jpeg file (hold in a instance variable of type form) to be RENDERED. not only a link to the data.

...

html imageWithDocument: aForm bits asByteArray mimeType: 'image/jpeg' fileName: root name,'Picture', '.jpg'.

best

martin

Am 31.05.2006 um 22:37 schrieb Philippe Marschall:

Hi

If you want to do this with FileLibrary

• Load the latest FileLibrary from the Seaside repository at

SqueakSource

• go to your /seaside/config application and make sure there's an

application of the type "Static File Library" named files (should happen automatically if you load FileLibrary-pmm.8 and had no previous version loaded)

• create a subclass of WAFileLibrary named let's say MyFileLibrary
• configure the files application, again in the /seaside/config

application

• add MyFileLibrary and configure it too
• add/upload your 'wave.jpg' file (might take a moment)
• in your seaside application you can use the following code

html image: '/files/wave.jpg'

You can check in MyFileLibrary into Monticello, file it out, make a changeset, .... it will take 'wave.jpg' everywhere it goes.

Cheers Philippe

2006/5/31, Martin Schubert martin.schubert@informatik.uni-ulm.de:

...

hello out there, allthough i browsed throught the archives i couldn`t find the answer to my problem.

i want to serve a jpg-file which is stored in a Form object. so i do : aForm _ (Form fromFileNamed: 'wave.jpg')

then i tried the following inside the #renderContentOn: method :

html imageWithDocument: aForm bits asByteArray mimeType: 'image/jpeg' fileName: root name,'Picture', '.jpg'.

this doesn`t work, and when i am acceptin the following, seaside seems to convert the jpg file to gif or wracks up the picture file somehow :

    html imageWithDocument: aForm
            mimeType: 'image/jpeg'
            fileName: root name,'Picture', '.jpg'.

anybodys having some experience with this issue? thanks for help!

martin

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Am 01.06.2006 um 08:40 schrieb Michel Bany:

Martin Schubert a écrit :

...

i want to serve a jpg-file which is stored in a Form object. so i do : aForm _ (Form fromFileNamed: 'wave.jpg')

Method #fromFileNamed: is smart enough to decode various picture formats and turn them into bitmaps. That's why it can understand your jpeg file. However after this was executed, the knowledge that its source was jpeg is lost. Not so smart.

...

this doesn`t work, and when i am acceptin the following, seaside seems to convert the jpg file to gif or wracks up the picture file somehow :

html imageWithDocument: aForm
    mimeType: 'image/jpeg'
    fileName: root name,'Picture', '.jpg'.

The above creates a document handler. When invoked for the rendering, this document handler needs to encode the bitmap into a MIME document. For some reason, the GIF encoding is selected by Seaside. See Form>>asMIMEDocument.

i tried to extend the Form with the following method and some variations but i cant get it work. it allways renders an image of type gif and it looks like this as well

asMIMEDocument | aStream | aStream _ (RWBinaryOrTextStream on: ''). JPEGReadWriter putForm: (self asFormOfDepth: self depth) onStream: aStream. ^MIMEDocument contentType: 'image/jpeg' content: aStream contents

so any help on how to fix that would be great.

as far as the html canvas api is concerned i don`t know anything about it. is there an example about the methods where the rendering is done. is the #renderContenOn: omitted?

thanks so far !!!

A possible solution would be to subclass Form so that it remembers the encoding of its source, re-implementing #asMIMEDocument to take this into account.

Another solution may be to use the Canvas api, where the image tag is handled quite differently.

HTH Michel. _______________________________________________ Seaside mailing list Seaside@lists.squeakfoundation.org http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside

because the construct : FormXTD fromFileNamed: 'x.jpeg' created an instance of Form

I had a quick look, and yes, I agree, subclassing Form is quite a challenge.

so for a quick hack, just take the previous method and substitute the Form>>asMIMEDocument method with it.

Rather than hacking, you may want to try something like this

html imageWithDocument: aForm asMIMEDocumentOfTypeJPEG mimeType: 'image/jpeg' fileName: root name,'Picture', '.jpg'.

goran@krampe.se a écrit :

do this:

html image fileName: 'myimage.png'

or:

html image fileName: 'myimage.blurp' mimeType: 'blurp'

The Seaside2.6b1 branch (that includes everything from 2.6a3) also supports this :

html image fileName: 'myimage.blurp' mimeType: 'blurp' document: aDocument

where the additional argument is anything that can understand #asMIMEDocument (String, ByteArray, Form, CachedDocument, etc.).