[Tex/LaTex] Beamer navigation dots

beamermini-framesnavigation

I'm writing a presentation using the Beamer class, I wonder if it is possible to keep the navigation dots filled (using the outertheme miniframes or smoothbars) once I've passed that slide.

An example (I've picked the Frankfurt theme at random, any other theme will do):

\documentclass{beamer}
\usetheme{Frankfurt}
\useoutertheme{miniframes}
\usepackage{remreset}

\makeatletter
\@removefromreset{subsection}{section}
\makeatother

\setcounter{subsection}{1}

\begin{document}
\section{Test}
\frame{one}
\frame{two}
\frame{three}
\end{document}

As you can see, in the first slide the first dot is full while the others are blank, in the second one the middle dot is full, on the last slide the last dot is full.

I would like the first slide to have the first dot full, the second one to have the first two dots full, etc..

Best Answer

To highlight all the mini frames of slides already seen, you can use the following code:

\documentclass[compress]{beamer}

\usetheme{Ilmenau}

\makeatletter
\def\slideentry#1#2#3#4#5#6{%
  %section number, subsection number, slide number, first/last frame, page number, part number
  \ifnum#6=\c@part\ifnum#2>0\ifnum#3>0%
    \ifbeamer@compress%
      \advance\beamer@xpos by1\relax%
    \else%
      \beamer@xpos=#3\relax%
      \beamer@ypos=#2\relax%
    \fi%
  \hbox to 0pt{%
    \beamer@tempdim=-\beamer@vboxoffset%
    \advance\beamer@tempdim by-\beamer@boxsize%
    \multiply\beamer@tempdim by\beamer@ypos%
    \advance\beamer@tempdim by -.05cm%
    \raise\beamer@tempdim\hbox{%
      \beamer@tempdim=\beamer@boxsize%
      \multiply\beamer@tempdim by\beamer@xpos%
      \advance\beamer@tempdim by -\beamer@boxsize%
      \advance\beamer@tempdim by 1pt%
      \kern\beamer@tempdim
      \global\beamer@section@min@dim\beamer@tempdim
      \hbox{\beamer@link(#4){%
          \usebeamerfont{mini frame}%
          \ifnum\c@section>#1%
            %\usebeamercolor[fg]{mini frame}%
            %\usebeamertemplate{mini frame}%
            \usebeamercolor{mini frame}%
            \usebeamertemplate{mini frame in other subsection}%
          \else%
            \ifnum\c@section=#1%
              \ifnum\c@subsection>#2%
                \usebeamercolor[fg]{mini frame}%
                \usebeamertemplate{mini frame}%
              \else%
                \ifnum\c@subsection=#2%
                  \usebeamercolor[fg]{mini frame}%
                  \ifnum\c@subsectionslide<#3%
                    \usebeamertemplate{mini frame in current subsection}%
                  \else%
                    \usebeamertemplate{mini frame}%
                  \fi%
                \else%
                  \usebeamercolor{mini frame}%
                  \usebeamertemplate{mini frame in other subsection}%
                \fi%
              \fi%
            \else%
              \usebeamercolor{mini frame}%
              \usebeamertemplate{mini frame in other subsection}%
            \fi%
          \fi%
        }}}\hskip-10cm plus 1fil%
  }\fi\fi%
  \else%
  \fakeslideentry{#1}{#2}{#3}{#4}{#5}{#6}%
  \fi\ignorespaces
  }
\makeatother

\begin{document}
\section{Section 1}
\subsection{Subsection 1}
\frame{}\frame{}\frame{}
\subsection{Subsection 2}
\frame{}\frame{}
\section{Section 2}
\subsection{Subsection 1}
\frame{}
\subsection{Subsection 2}
\frame{}\frame{}\frame{}\frame{}\frame{}\frame{}
\section{Section 3}
\subsection{Subsection 1}
\frame{}\frame{}\frame{}\frame{}\frame{}\frame{}
\end{document}

Result

mini frames navigation, with highlighted mini frames for slides already presented (only in current section)

Explanation

The question is very similar to Beamer: how to change the mini frames coloring: You have to rewrite the internal macro \slideentry responsible for generating the mini frames so that it checks whether the mini frame which is currently produced was already presented or not. This is achieved by a series of conditional statements in ll. 29-56.

Related Question