beamertable of contents
In a presentation, people show regularly a "outline" frame containing the table of contents where some sections are grey (have been presented) and others are highlighted (will be presented right now).
Could anyone tell me how to realize it? Do we have to copy the same frame (table of contents) every time and change the color of some titles?
Thank you very much
Here is a solution that patches an auxiliary macro in \frametitle, adding code that adds a bookmark and table-of-contents line as if it were a subsection (you can just comment this out if not wanted):
\documentclass{beamer}
\AtBeginSection{\frame{\tableofcontents[currentsection]}}
\usepackage{bookmark}
\usepackage{etoolbox}
\makeatletter
% save the current definition of \beamer@@frametitle
\let\nobookmarkbeamer@@frametitle\beamer@@frametitle
% then patch it to do the bookmarks and/or TOC entries
\apptocmd{\beamer@@frametitle}{%
% keep this to add the frame title to the TOC at the "subsection level"
\addtocontents{toc}{\protect\beamer@subsectionintoc{\the\c@section}{0}{#1}{\the\c@page}{\the\c@part}%
{\the\beamer@tocsectionnumber}}%
% keep this line to add a bookmark that shows up in the PDF TOC at the subsection level
\bookmark[page=\the\c@page,level=3]{#1}%
}%
{\message{** patching of \string\beamer@@frametitle succeeded **}}%
{\errmessage{** patching of \string\beamer@@frametitle failed **}}%
\pretocmd{\beamer@checknoslide}{%
% ensure the bookmark is not created if the slide is filtered out
\let\beamer@@frametitle\nobookmarkbeamer@@frametitle
}%
{\message{** patching of \string\beamer@checknoslide succeeded **}}%
{\errmessage{** patching of \string\beamer@checknoslide failed **}}%
\makeatother
\begin{document}
\section{First Section}
\begin{frame}{First frame}Text\end{frame}
\begin{frame}{Second frame}Text\end{frame}
\section{Second Section}
\begin{frame}{Third frame}Text\end{frame}
\begin{frame}\frametitle{Fourth frame}Text\end{frame}
\begin{frame}<handout>\frametitle{Fifth frame}Text\end{frame}
\end{document}
I had to dig around in beamerbasesection.sty to figure that out. But it seems to work.
EDIT. (by cyberSingularity): Now prevents unwanted bookmarks when the slide is not shown by also patching \beamer@checknoslide, and provided an additional frame to test.
Note: if there are frames with multiple slides (e.g. due to \pauses), you may also be interested in this follow up question.
Use a conditional based on the section counter to decide whether to include the table of contents frame. Here, I use the \ifnumcomp macro from etoolbox
\usepackage{etoolbox}
\AtBeginSection[] {
\ifnumcomp{\value{section}}{=}{1}{}
{
\begin{frame}[t]
\frametitle{Overview}
\tableofcontents[sectionstyle=show/shaded,hideothersubsections]
\end{frame}
}
}
If the section number is 1, then the first (empty) set of braces will be used. Otherwise the second set of braces (with the frame in it) will be used.
Best Answer
You can do this using
\AtBeginSection:Here's the frame obtained just before the frames for section two: