Posted by
Patrick Ben Koetter on
Nov 18, 2019; 9:29pm
URL: https://discuss.asciidoctor.org/Conditionally-setting-image-in-Header-in-PDF-tp7356.html
Greetings,
I'm looking for an elegant way to set which image to use in PDF headers
(running content) to indicate which classification a document has.
The simpliest, but not so elegant way I can think of is to specify a dedicated
theme, which sets the correct header like along this concept:
# theme 1
header:
...
recto:
right:
content: image:../assets/level1.png[]
verso:
left:
content: $header-recto-right-content
# theme 2
header:
...
recto:
right:
content: image:../assets/level2.png[]
verso:
left:
content: $header-recto-right-content
But that will create lots of reduncancy in the themes and only the image would
change with the classification.
Ideally I would set the classification as VAR in the document:
= My Document
:classification: level1
...
And then $SOMETHING would evaluate the condition and set the image associated
with the {classification}.
I thought a simple attribute reference
<
https://github.com/asciidoctor/asciidoctor-pdf/blob/master/docs/theming-guide.adoc#attribute-references>
might work, but it won't if I do it like this:
= My Document
:classification: level1
...
header:
...
recto:
right:
content: image:../assets/{classification}.png[]
verso:
left:
content: $header-recto-right-content
However if I specify the image name as attribute, the image isn't embedded
whereas if I hardcode it, it will be.
Any ideas what I am doing wrong or a different way to do it?
TIA,
p@rick
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