Leandro Lucarella, el 23 de junio a las 22:15 me escribiste:
> Hi.
>
> I'm trying to improve the aafig_ Sphinx extension to use an image node
> to output the aafigure_ generated image, so it can take advantage of the
> extra image options (like height, width, etc.) and any bug-fixes.
> Consistency is a nice advantage too.
>
> The problem is I'm getting an error when doing that. I'm sorry about the
> cross-posting, but I don't know if the error is docutils or Sphinx
> related.
>
> What I'm doing is something like::
>
> def aafig_node_html_visit(self, node):
> # generate the aafigure image
> node.img = nodes.image()
> # copy aafig attributes to the image node
> self.visit_image(node.img)
> raise nodes.SkipNode
>
> def aafig_node_html_depart(self, node):
> self.depart_image(node.img)
> raise nodes.SkipNode
I took a different approach trying to do this. I saw how the figure
directive is implemented and I decided to give that way a try. It's all
almost working, but I have a small problem and I don't know how to fix it,
if it's even possible without modifying docutils/Sphinx.
What I'm doing is inherit my Aafig directive from docutil's Image and
create an image in a similar way as the Figure directive does.
This is the simplified code:
class Aafig(directives.images.Image):
def run(self):
self.arguments = ['???'] # (1)
(image_node,) = directives.images.Image.run(self)
aafig_node = aafig(text, image_node, **aafig_options)
return [aafig_node]
def aafig_html_visit(self, node):
# generate the image
image_node = node[0]
image_node['src'] = image_file_path # (2)
My problem is, I don't know the file name of the image at point (1)
because the image file name depends on the builder used to render the
document. As things are now, I have to add the argument to the directive
because the Image directive expects one argument, but I don't know what's
the image file name until (2). I can't come up with a format-independent
image file name because I have to store the generated image in the build
directory, which is builder-dependent.
Is there any way to do what I want? If not, will you be willing to accept
patches to allow this? I think other extensions can benefit from this,
like the official graphviz extension (in which I based the aafig
extension) and my other graphviz-based extension: mscgen.
TIA.
--
Leandro Lucarella (luca) | Blog colectivo: http://www.mazziblog.com.ar/blog/
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