Re: New beamer support

[Eric S Fraga <ucecesf@ucl.ac.uk>]

At Wed, 06 Jan 2010 10:46:45 +0100,
Sébastien Vauban wrote:
> 
> Hello all,
> 
> Here a few comments, after my first attempt with the new beamer support --
> excellent, needless to say...

Yes, excellent indeed.  

An aside: *Carsten,* I have been off ill (eye operation at start of
December) so only today have I managed to come back to play with
org-mode's beamer support.  Everything so far is working as expected,
i.e. very well indeed.

> Before that, I was using Nick's export class. But, now, I'm using yesterday's
> git version.
> 
> The few things I'm tackling right now are:
> 
> - How to get a TOC with a frame title, without having to add it explicitly?

I think you need to add it explicitly with \tableofcontents?  In beamer, I simply typically have

--8<---------------cut here---------------start------------->8---
\begin{frame}<beamer> 
  \frametitle{Table of contents}
  \tableofcontents
\end{frame}
--8<---------------cut here---------------end--------------->8---

> - How to get alerted text, without customizing `org-export-emphasis-alist'?
>   Has this been forgotten from the commit?

I think the decision was to allow users to customise this themselves
(as indicated in your subsequent followup with a link to one of our
previous messages on this topic).

> 
> - How to get "frame breaks", without modifying the resulting TeX file (by
>   adding a frame option `allowframebreaks' -- similar to the `fragile'
>   option)?
> 
> - How to get the TOC repeated when changing of section, with the new item
>   highlighted?  See my manual essay ;-)

Again, beamer supports this easily so I would suggest simply adding
some direct latex code at the start of your org file.  The latex code
I use is:

--8<---------------cut here---------------start------------->8---
\AtBeginSection[]
{
  \begin{frame}
    \frametitle{Topic}
    \tableofcontents[currentsection]
  \end{frame}
}
--8<---------------cut here---------------end--------------->8---

You could simply put this in one line with #+latex_header: as in (untested):

--8<---------------cut here---------------start------------->8---
#+latex_header: \AtBeginSection[]{  \begin{frame}    \frametitle{Topic}    \tableofcontents[currentsection]  \end{frame}}
--8<---------------cut here---------------end--------------->8---

HTH,
eric