projektor/projektor.sty

\NeedsTeXFormat{LaTeX2e}

\ProvidesPackage{projektor}[2023/04/29 Beamer template]

% Options
\newif\ifoption@code
\DeclareOption{code}{\option@codetrue}
\newif\ifoption@fr
\DeclareOption{fr}{\option@frtrue}
\newif\ifoption@dark
\DeclareOption{dark}{\option@darktrue}

\ProcessOptions
\ifoption@code
    % Intégration code
    \RequirePackage{minted}
    \usemintedstyle{emacs}
\fi
\ifoption@fr
    % Langue
    \RequirePackage[french]{babel}
\fi

% Metropolis + barre de progression + numéro de page
\usetheme[
    progressbar=frametitle,
    numbering=fraction,
    block=fill
]{metropolis}


\ifoption@dark
    % Dark theme
    \setbeamercolor{normal text}{fg=white,bg=black!90}
    \setbeamercolor{alerted text}{fg=orange!65!white}
    \setbeamercolor{progress bar}{bg=alerted text.fg!20!black!90}
    \setbeamercolor{frametitle}{bg=black!92}
    \setbeamercolor*{palette primary}{use=structure,fg=structure.fg}
\else
    % Augmente l'épaisseur de la barre de progression sur les diapos
    \setlength{\metropolis@progressinheadfoot@linewidth}{0.8pt}
\fi

% Métadonnées
\hypersetup{
    pdfsubject={Présentation},
    pdfkeywords={presentation},
    pdfcreator={LaTeX with Beamer class and projektor template}
}

% Resolve issue with overfull vbox
\def\titlepage{\usebeamertemplate{title page}}

% Bas de page
\setbeamertemplate{frame footer}{
    \insertsection \hfill\hspace{-4em} \insertshorttitle
}
\setbeamerfont{page number in head/foot}{size=\tiny}
\setbeamercolor{footline}{fg=gray}

% Enumerate au lieu d'itemize
\setbeamertemplate{section in toc}[sections numbered]

% Police
\RequirePackage{lmodern}

% Inverse titre court/titre long dans le plan
\RequirePackage{etoolbox}
\makeatletter
\patchcmd{\beamer@section}{{#2}{\the\c@page}}{{#1}{\the\c@page}}{}{}
\patchcmd{\beamer@section}{{\the\c@section}{\secname}}{{\the\c@section}{#1}}{}{}
\makeatother

% Liste sur plusieurs colonnes
\RequirePackage{multicol}

% Pas de préfix pour les figures
\RequirePackage[figurename=]{caption}

% Support des sous-titres
\makeatletter
\newcommand\startsubtitle{
    \renewcommand{\metropolis@frametitlestrut@start}{
        \rule{0pt}{1ex +
            \totalheightof{
                \ifcsdef{metropolis@frametitleformat}{\metropolis@frametitleformat X}{X}
            }
        }
    }
    \renewcommand{\metropolis@frametitlestrut@end}{
        \rule[-3ex]{0pt}{\metropolis@frametitle@padding}
    }
}

\newcommand\stopsubtitle{
    \renewcommand{\metropolis@frametitlestrut@start}{
        \rule{0pt}{\metropolis@frametitle@padding +
            \totalheightof{
                \ifcsdef{metropolis@frametitleformat}{\metropolis@frametitleformat X}{X}
            }
        }
    }
    \renewcommand{\metropolis@frametitlestrut@end}{
        \rule[-\metropolis@frametitle@padding]{0pt}{\metropolis@frametitle@padding}
    }
}
\makeatother

\setbeamercolor{framesubtitle}{fg=white}
\setbeamerfont{framesubtitle}{series=\mdseries}
\addtobeamertemplate{frametitle}{
    \ifx\insertframesubtitle\empty\else
        \startsubtitle
    \fi
}{
    \ifx\insertframesubtitle\empty\else
        \vspace{-4ex}
        \usebeamerfont{framesubtitle}
        \usebeamercolor[fg]{framesubtitle}
        \insertframesubtitle
        \stopsubtitle
    \fi
}