beamerpresentationstable of contents
I'm looking to be able to have an outline or table of contents on the side of every slide fairly automatically, though it would be good if it could be suppressed on some slides. This outline would update as the presentation progresses, showing which point have already been covered.
I would prefer a less obtrusive way of indicating the state of the presentation, but this is an external requirement.
I guess there are at least three alternatives for your problem, the four slides in the following example all do the same:
\documentclass{beamer}
\usetheme{Darmstadt}
\begin{document}
\begin{frame}
\begin{itemize}
\item first one
\pause
\item second one
\pause
\item third one
\pause
\item fourth one
\end{itemize}
\end{frame}
\begin{frame}
\begin{itemize}
\item<1-> first one
\item<2-> second one
\item<3-> third one
\item<4-> fourth one
\end{itemize}
\end{frame}
\begin{frame}
\begin{itemize}
\item<+-> first one
\item<+-> second one
\item<+-> third one
\item<+-> fourth one
\end{itemize}
\end{frame}
\begin{frame}
\begin{itemize}[<+->]
\item first one
\item second one
\item third one
\item fourth one
\end{itemize}
\end{frame}
\end{document}
<3-> meaning all starting from the third onebeamerpause (=1 at beginning of frame) by one at each encounterEdit 1: You can also set the behaviour from the fourth example as general. All frames following \beamerdefaultoverlayspecification{<+->} will set pauses for every actionenv environment and every \item. To be in effect globally, you need to set this outside of a frame, e.g. as the first line after \begin{document}, before the first frame.
Here's something that works with the example you posted, but might not work with more sophisticated overlay specifications. There are two parts to the method. The first is a little addition to the overlay code which tries to establish whether the current frame was explicitly mentioned, for example the 3 in \uncover<3->, or not, for example frame 4 in \uncover<4->. If explicitly mentioned, it sets a flag. The second part to the method is a little addition to pgfpages, imaginatively called pgfmorepages (CTAN and github), which - amongst other things - introduces the possibility of skipping a page when shipping out pages. So this looks for the flag set by the first part of the code and if it doesn't find it, it ignores the particular page.
There is a snag. You can't use the transparent option. That is because this does some look-ahead stuff and asks "Is this going to appear in a frame or two's time?" So it runs the overlay specifications with other frame numbers than the current one and that messes up the testing.
The other annoying bit is that each frame has to start with the command \mentionedsetup. This could be automated by adding it to one of the templates.
Here's the code with some sample frames.
%\url{http://tex.stackexchange.com/q/56990/86}
% 1. NO NOTES
\documentclass[]{beamer}
%% 2. DUAL-DISPLAY NOTES:
%\documentclass[hyperref={bookmarks=true}]{beamer}
\usepackage{pgfmorepages}
%\setbeameroption{show notes on second screen=left}
\makeatletter
\newif\if@mentioned
\@mentionedtrue
\pgfpagesdeclarelayout{1 on 1 with possible skip}
{
\def\pgfpageoptionborder{0pt}
}
{
\pgfpagesphysicalpageoptions
{%
logical pages=1,%
physical pages=1,%
first logical shipout=1,%
last logical shipout=1,%
current logical shipout=1,%
}
\pgfpagesphysicalpage{1}{
skip code={%
\if@mentioned
\pgfpagesshiptrue
\else
\pgfpagesshipfalse
\fi
}
}
\pgfpageslogicalpageoptions{1}
{%
center=\pgfpoint{.5\pgfphysicalwidth}{.5\pgfphysicalheight},%
}%
}
\pgfpagesuselayout{1 on 1 with possible skip}
\def\slidereferenced{%
\ifbeamer@inframe
\global\@mentionedtrue
\fi
}
\def\mentionedsetup{%
\ifnum\beamer@slideinframe=1
\global\@mentionedtrue
\else
\global\@mentionedfalse
\fi
}
\expandafter\let\csname
beamerx@\string\beamer@inframenote\endcsname\relax
\renewcommand<>{\beamer@inframenote}[2][]{}
\def\beamer@decodeuntil-#1,{%
\ifnum1<\beamer@minimum\global\beamer@minimum=1\fi%
\ifnum#1>\beamer@slideinframe\global\beamer@anotherslidetrue\beamer@localanotherslidetrue\fi%
\ifnum\beamer@slideinframe>#1\else\gdef\beamer@doifnotinframe{\beamer@doifinframe}\fi%
\ifnum\beamer@slideinframe=#1\relax\slidereferenced\fi%
\beamer@@decode}
\def\beamer@decodeto#1,{%
\ifnum#1<\beamer@minimum\global\beamer@minimum=#1\fi%
\ifnum#1>\beamer@slideinframe\global\beamer@anotherslidetrue\beamer@localanotherslidetrue\fi%
\ifnum#1>\beamer@slideinframe\else\gdef\beamer@doifnotinframe{\beamer@doifinframe}\fi%
\ifnum\beamer@slideinframe=#1\relax\slidereferenced\fi%
\beamer@@decode}
\def\beamer@decodebetween#1#2,{%
\ifnum#1<\beamer@minimum\global\beamer@minimum=#1\fi%
\ifnum#1>\beamer@slideinframe\global\beamer@anotherslidetrue\beamer@localanotherslidetrue\fi%
\ifnum#2>\beamer@slideinframe\global\beamer@anotherslidetrue\beamer@localanotherslidetrue\fi%
\ifnum#1>\beamer@slideinframe\else\ifnum#2<\beamer@slideinframe\else\gdef\beamer@doifnotinframe{\beamer@doifinframe}\fi\fi%
\ifnum\beamer@slideinframe=#1\relax\slidereferenced\fi%
\ifnum\beamer@slideinframe=#2\relax\slidereferenced\fi%
\beamer@@decode}
\def\beamer@decodeone#1,{%
\ifnum#1<\beamer@minimum\global\beamer@minimum=#1\fi%
\ifnum#1>\beamer@slideinframe\global\beamer@anotherslidetrue\beamer@localanotherslidetrue\fi%
\ifnum#1=\beamer@slideinframe\gdef\beamer@doifnotinframe{\beamer@doifinframe}\fi%
\ifnum\beamer@slideinframe=#1\relax\slidereferenced\fi%
\beamer@@decode}
\makeatother
\usepackage[english]{babel}
\mode<presentation>{
\usetheme{Warsaw}
% \setbeamercovered{transparent}
}
\begin{document}
\begin{frame}{Testing}
\mentionedsetup
\uncover<1->{hello}
\uncover<3->{world}
\uncover<5->{greetings}
\uncover<7->{earthlings}
\end{frame}
\begin{frame}{Introduction}{}
\mentionedsetup
\begin{itemize}
\item hello world
\uncover<1->{\item Here is my first point}
\uncover<2->{\item Here is my second point}
\uncover<4->{\item With notes on, I would expect it to take two
clicks to get here from the last point, since there are two notes. But
with them off, I would expect it to take one click.}
\uncover<5->{\item This is my third point. I have four notes about
this point, so with notes on, it should take three more clicks to get
to the next slide. With them off, however, it should take one. }
\end{itemize}
\note[item]<1->{Here is a note about my first point}
\note[item]<2->{Here is a note about my second point}
\note[item]<3->{Here is \textbf{another} note about my second point}
\note[item]<4->{Here is a note about my third point}
\note[item]<5->{Here is the second of several more notes about my
third point}
\note[item]<6->{Another one}
\note[item]<7->{And another}
\end{frame}
\begin{frame}{Another slide}{}
\begin{itemize}
\uncover<1->{\item Not much to say here}
\end{itemize}
\end{frame}
\end{document}
Oh, and we have to redefine the \note command. Even when the notes aren't shown, the command is processed. So we have to redefine it to be a NO-OP to ensure that the resulting overlays aren't read.
Here's the first few frames of the above, showing that frames 2,4,6 get skipped.
Best Answer
Beamer has several themes that provide this functionality automatically. One example:
This is of course highly customisable, as everything in latex. For example to only show sections
\usetheme[hideallsubsections]{Berkeley}. See thebeameruserguidesection 15.4 for more options.