Andy Wingo <wi...@igalia.com> skribis: > On Fri 28 Aug 2015 19:15, Luis Felipe López Acevedo > <felipe.lo...@openmailbox.org> writes: > >> Modifying the document background does not affect the design at all, >> because we are using the dark rectangle on top of it as the background >> of the image, so it doesn't matter what the background of the document >> is. >> >> Could it be that rsvg-convert is complaining about transparency in the >> page/document background and not about the transparency of the >> checkerboard pattern in the "Background" layer? Because it is not >> complaining about the transparency in the layer that contains the logo >> (which has transparency as well), is it? > > We could use guile-cairo / guile-rsvg to convert, fwiw. Better to do > that than to cause our graphics people to modify the image. > > (use-modules (rsvg) (cairo)) > > (define (->int x) (inexact->exact (ceiling x))) > > (define (render-to-png in-svg out-png) > (let ((svg (rsvg-handle-new-from-file in-svg))) > (call-with-values (lambda () (rsvg-handle-get-dimensions svg)) > (lambda (width height em ex) > (let* ((surf (cairo-image-surface-create 'argb32 > (->int width) > (->int height))) > (cr (cairo-create surf))) > (rsvg-handle-render-cairo svg cr) > (cairo-surface-flush surf) > (cairo-surface-write-to-png (cairo-get-target cr) out-png))))))
FWIW I tried this (finally!) and this has the same problem as ‘rsvg-convert’ regarding the checkerboard pattern. So maybe we need to apply Felipe’s changes anyway? Thoughts? Ludo’.
