beamerthemeegupico.sty

\ProvidesPackage{beamerthemeegupico}
% beamer theme for EGU Pico sessions
% Authors: Anselm Koehler and Rolf Sander (2018)

% setup some fonts:
\setbeamerfont{normal text}{size=\small}
\setbeamerfont{title}{series=\bfseries}
\setbeamerfont{author}{series=\bfseries, size=\small}
\setbeamerfont{institute}{size*={3pt}{0pt}}
%\setbeamersize{text margin left=0pt,text margin right=0pt}

% color definitions:
\definecolor{bgcolor}{rgb}{1,1,0.9} % 252, 220, 163
\definecolor{buttonpassivecolor}{rgb}{0,0.6274,0.8353}
\definecolor{buttonactivecolor}{rgb}{0,0.4,0.4}
\setbeamercolor*{normal text}{fg=black, bg=bgcolor}

\usepackage{ifthen}
\usepackage{ragged2e}


\setbeamertemplate{navigation symbols}{}%remove navigation symbols

\AtBeginDocument{
  \usebeamerfont{normal text}
  \justifying
  \newwrite\copyfile  % open the file to write to
  \immediate\openout\copyfile=picobuttons2.tex
  \newread\file      % open the file to read from
  \openin\file=picobuttons.tex
  \begingroup\endlinechar=-1
  \loop\unless\ifeof\file
    \read\file to\fileline  % Read one line and store it into \fileline
    \immediate\write\copyfile{\unexpanded\expandafter{\fileline}}  % print to picobuttons2.tex
  \repeat
  \endgroup
  \immediate\closeout\copyfile
  \newwrite\tempfile
  \immediate\openout\tempfile=picobuttons.tex
  \hypersetup{
    pdfauthor={\shortauthor},
    pdftitle={\shorttitle},
    colorlinks=false}
  }

\AtEndDocument{
  \immediate\closeout\tempfile
  }

\newcommand{\sectioninfo}{}
\setbeamertemplate{headline}{\leavevmode
  \begin{beamercolorbox}[width=\paperwidth]{head title}
    \color{buttonactivecolor}\small\bf
    \rule[-1ex]{0ex}{4ex}
    \shorttitle:
    \sectioninfo
    \hfill
    \shortauthor
    \rule[-1ex]{0ex}{4ex}
    {\color{buttonactivecolor}\hrule height 1pt\vspace{0.1cm}}
  \end{beamercolorbox}%
}

% setup the navigation in footbox
% first set some button colors
\newcommand{\buttonactive}{\setbeamercolor{button}{bg=buttonactivecolor,fg=white}}
\newcommand{\buttonpassive}{\setbeamercolor{button}{bg=buttonpassivecolor,fg=black}}
% now set up that the one active one gets the new color.
\newcommand{\secvariable}{nothing}
% therefore we write before each section (well, everything which should
% be part of the navi bar) the variable \secvariable to any name which
% is in the next function ...
% USAGE: \picosection{label}{buttontext}{sectiontitle}
\newcommand{\picosection}[3]{%
  \renewcommand{\secvariable}{#1}
  \renewcommand{\sectioninfo}{#3}
  \immediate\write\tempfile{\string\tocbuttoncolor{#1}\string\hspace{\string\buttonspacingfootline}}
  \immediate\write\tempfile{\string\hyperlink{#1}{\string\beamerbutton{#2}}}
  \label{\secvariable}
}
% ... compaired to strings in the following navibar definition ...
\newcommand{\tocbuttoncolor}[1]{%
  \ifthenelse{\equal{\secvariable}{#1}}{%
    \buttonactive}{%
    \buttonpassive}}
% ... here we start to set up the navibar. each entry is calling first
% the function \tocbuttoncolor with the argument which should be tested
% for being active. if active, then change color. afterwards the button
% is draw. so to change that, you need to change the argument in
% \toc..color, the first in \hyperlink and before each frames
% definition... A bit messed up, but works...
\newlength{\buttonspacingfootline}
\setlength{\buttonspacingfootline}{0mm}
\setbeamertemplate{footline}
{\leavevmode
\begin{beamercolorbox}[width=\paperwidth]{head title}
  {\color{buttonactivecolor}\hrule height 1pt}
  \vspace{0.05cm}
  % set up the buttons in an mbox
  \centering \mbox{
      % if you want general navigation buttons -> uncomment the following lines
        %\tocbuttoncolor{prev}\hspace{\buttonspacingfootline}
        %\hyperlinkslideprev{\beamerbutton{$<$}}
        %\tocbuttoncolor{next}\hspace{\buttonspacingfootline}
        %\hyperlinkslidenext{\beamerbutton{$>$}}
        %\buttonpassive\Acrobatmenu{GoBack}{\beamerreturnbutton{}}
    \IfFileExists{picobuttons2.tex}{\input{picobuttons2}}{}
  }
\hfill
    % uncomment for normal button to acrobat menue
    \buttonpassive\Acrobatmenu{FullScreenPrefs}{\beamerbutton{\#}}
    % have the acrobat menue hidden under the cc-logo
    % \Acrobatmenu{FullScreenPrefs}{\mbox{%
    %   \includegraphics[height=0.04\textheight,keepaspectratio]{%
    %     figures/CreativeCommons_Attribution_License}%
    %     \hspace{0.02cm}
    %     }}



    \vspace{0.05cm}
\end{beamercolorbox}%
}