Hi All,
Currently the html-renderer of Scribble converts picts into png-images.
Is there an easy way to get svg-images instead?
A first look at the code seems to indicate the answer is no, but maybe I have
overlooked something?
The html-renderer converts anything (including picts) convertible to
png-bytes pngs.
Line 1090-... in scribble/html-render.rkt :
(define/override (render-content e part ri)
(define (attribs [extras null]) (content-attribs e extras))
(cond
[(string? e) (super render-content e part ri)] ; short-cut for
common case
[(list? e) (super render-content e part ri)] ; also a short-cut
[(and (convertible? e)
(convert e 'png-bytes))
=> (lambda (bstr)
(let ([w (integer-bytes->integer (subbytes bstr 16 20) #f #t)]
[h (integer-bytes->integer (subbytes bstr 20 24) #f #t)])
`((img ([src ,(install-file "pict.png" bstr)]
[alt "image"]
[width ,(number->string w)]
[height ,(number->string h)])))))]
[(image-element? e)
...
In mrlib/image-core.rkt at line 232 one sees that images currently can
be converted to png-bytes only.
Is the right way to proceed, to
1) add svg-bytes to mrlib/image-core.rkt.
2) introduce a parameter in Scribble that controls what picts
should be converted to
3) change render-content in scribble/html-render.rkt accordingly
?
https://github.com/plt/racket/blob/master/pkgs/scribble-pkgs/scribble-lib/scribble/html-render.rkt#L1090
https://github.com/plt/racket/blob/4b8bd2260543dfe7d6da58e7529f330a1cf19d7b/pkgs/gui-pkgs/gui-lib/mrlib/image-core.rkt#L232
--
Jens Axel Søgaard
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