* modify frame title in beamer export
@ 2020-04-05 9:28 Gürtler, Martin
2020-04-05 12:36 ` Nicolas Goaziou
0 siblings, 1 reply; 2+ messages in thread
From: Gürtler, Martin @ 2020-04-05 9:28 UTC (permalink / raw)
To: emacs-orgmode@gnu.org
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Hi,
I'd like to modify the frame title in beamer export based on
properties or priority as this is possible in latex export.
In latex export, one can set the variable
org-latex-format-headline-function to the name of a function that
creates the content of the headline. I was able to use this in
latex export.
As beamer export is derived from latex export I had hoped that
this
would automatically work for beamer export as well, but this
is not the case, the headlines in beamer export are not modified.
A second question is, whether one could also use properties to
format the headlines. The arguments of the user supplied function
include tags, but not properties.
Thanks,
Martin
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: modify frame title in beamer export
2020-04-05 9:28 modify frame title in beamer export Gürtler, Martin
@ 2020-04-05 12:36 ` Nicolas Goaziou
0 siblings, 0 replies; 2+ messages in thread
From: Nicolas Goaziou @ 2020-04-05 12:36 UTC (permalink / raw)
To: Gürtler, Martin; +Cc: emacs-orgmode@gnu.org
Hello,
"Gürtler, Martin" <martin.guertler@htwk-leipzig.de> writes:
> I'd like to modify the frame title in beamer export based on
> properties or priority as this is possible in latex export.
>
> In latex export, one can set the variable
> org-latex-format-headline-function to the name of a function that
> creates the content of the headline. I was able to use this in
> latex export.
>
> As beamer export is derived from latex export I had hoped that this
> would automatically work for beamer export as well, but this
> is not the case, the headlines in beamer export are not modified.
>
> A second question is, whether one could also use properties to
> format the headlines. The arguments of the user supplied function
> include tags, but not properties.
I suggest to create a function modifying the headline element in the
parse tree, and add it to `org-export-filter-parse-tree-functions'. This
way, you have access to all properties and what not, and can replace the
headline by whatever you need. E.g., (untested):
(defun my-beamer-frame-title-filter (ast backend info)
(cond
((not (org-export-derived-backend-p 'beamer)) ast)
(t
(org-element-map ast 'headline
(lambda (h)
(when (equal (org-export-get-node-property :A h) "foo")
(org-element-put-property h :title "FOO!")))
info)
ast)))
HTH,
--
Nicolas Goaziou
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