Hi,
Sometime I find it useful to align Beamer notes with slide overlays, for
example, when stepping through a worked example (see attachment).
Beamer permits notes to have overlay specifications but presently these
are not exported by org.
--
Jamie Forth
>From 5faeaf613b3eb8f687ca2a2addfce974d588fafe Mon Sep 17 00:00:00 2001
From: Jamie Forth <j.fo...@gold.ac.uk>
Date: Mon, 21 Jan 2019 18:01:13 +0000
Subject: [PATCH] lisp/ox-beamer.el: Export overlay specification for notes
* ox-beamer.el (org-beamer-headline): Pass overlay specification to
beamer `\note{}' command.
This is useful for animating multiple slides within a single frame and
displaying only relevant note for each step.
TINYCHANGE
---
lisp/ox-beamer.el | 23 ++++++++++++++++-------
1 file changed, 16 insertions(+), 7 deletions(-)
diff --git a/lisp/ox-beamer.el b/lisp/ox-beamer.el
index 05894ffab..7811dd6b5 100644
--- a/lisp/ox-beamer.el
+++ b/lisp/ox-beamer.el
@@ -645,13 +645,22 @@ as a communication channel."
contents))
;; Case 4: HEADLINE is a note.
((member environment '("note" "noteNH"))
- (format "\\note{%s}"
- (concat (and (equal environment "note")
- (concat
- (org-export-data
- (org-element-property :title headline) info)
- "\n"))
- (org-trim contents))))
+ (concat "\\note"
+ ;; Overlay specification.
+ (let ((overlay (org-element-property :BEAMER_ACT headline)))
+ (when overlay
+ (org-beamer--normalize-argument
+ overlay
+ (if (string-match "\\`\\[.*\\]\\'" overlay)
+ 'defaction 'action))))
+ (format "{%s}"
+ (concat (and (equal environment "note")
+ (concat
+ (org-export-data
+ (org-element-property :title headline)
+ info)
+ "\n"))
+ (org-trim contents)))))
;; Case 5: HEADLINE is a frame.
((= level frame-level)
(org-beamer--format-frame headline contents info))
--
2.20.1
#+startup: beamer
#+beamer_theme: Singapore
#+beamer_header: \usepackage{pgfpages}
#+beamer_header: \setbeameroption{show notes on second screen=right}
#+options: toc:nil H:2
* Section 1
** Slide 1
*** Step 1 :B_onlyenv:
:PROPERTIES:
:BEAMER_ACT: <+>
:BEAMER_env: onlyenv
:END:
**** Foo
- a
- b
**** Step 1 note :B_note:
:PROPERTIES:
:BEAMER_env: note
:BEAMER_ACT: <.>
:END:
- qux
*** Step 2 :B_onlyenv:
:PROPERTIES:
:BEAMER_ACT: <+>
:BEAMER_env: onlyenv
:END:
**** Bar
- c
- d
**** Step 2 note :B_note:
:PROPERTIES:
:BEAMER_env: note
:BEAMER_ACT: <.>
:END:
- qux
# Local Variables:
# org-beamer-environments-extra: (("onlyenv" "O" "\\begin{onlyenv}%a" "\\end{onlyenv}"))
# End:
