mirror of https://github.com/matze/mtheme.git
529 lines
14 KiB
TeX
529 lines
14 KiB
TeX
% \iffalse meta-comment -------------------------------------------------------
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% Copyright 2015 Matthias Vogelgesang and the LaTeX community. A full list of
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% contributors can be found at
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%
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% https://github.com/matze/mtheme/graphs/contributors
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%
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% and the original template was based on the HSRM theme by Benjamin Weiss.
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%
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% This work is licensed under a Creative Commons Attribution-ShareAlike 4.0
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% International License (https://creativecommons.org/licenses/by-sa/4.0/).
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% ------------------------------------------------------------------------- \fi
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% \iffalse
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%<driver> \ProvidesFile{beamerinnerthememetropolis.dtx}
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%<*package>
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\NeedsTeXFormat{LaTeX2e}
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\ProvidesPackage{beamerinnerthememetropolis}[2015/06/12 Metropolis inner theme]
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%</package>
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%<driver> \documentclass{ltxdoc}
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%<driver> \usepackage{beamerinnerthememetropolis}
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%<driver> \begin{document}
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%<driver> \DocInput{beamerinnerthememetropolis.dtx}
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%<driver> \end{document}
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% \fi
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% \CheckSum{0}
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% \StopEventually{}
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% \iffalse
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%<*package>
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% ------------------------------------------------------------------------- \fi
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%
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% \subsection{\textsc{metropolis} inner theme}
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%
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% A |beamer| inner theme dictates the style of the frame elements traditionally
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% set in the ``body'' of each slide. These include:
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%
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% \begin{itemize}
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% \item title, part, and section pages;
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% \item itemize, enumerate, and description environments;
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% \item block environments including theorems and proofs;
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% \item figures and tables; and
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% \item footnotes and plain text.
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% \end{itemize}
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%
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% Load required packages.
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% \begin{macrocode}
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\RequirePackage{etoolbox}
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\RequirePackage{calc}
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\RequirePackage{pgfopts}
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\RequirePackage{tikz}
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% \end{macrocode}
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%
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%
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%
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% \subsubsection{Options}
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%
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% \begin{macro}{block}
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% This option controls the block style.
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% \begin{macrocode}
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\pgfkeys{
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/metropolis/inner/block/.cd,
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.is choice,
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transparent/.code=\setlength{\@metropolis@blockskip}{0ex},
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fill/.code=\setlength{\@metropolis@blockskip}{1ex},
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}
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% \end{macrocode}
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% \end{macro}
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%
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% \begin{macro}{titleformat}
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% Control the case style of the title
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% \begin{macrocode}
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\pgfkeys{
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/metropolis/inner/titleformat/.cd,
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.is choice,
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regular/.code=\renewcommand{\@metropolis@titleformat}{},
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lowercase/.code={%
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\renewcommand{\@metropolis@titleformat}{\MakeLowercase}
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},
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uppercase/.code={%
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\renewcommand{\@metropolis@titleformat}{\MakeUppercase}
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},
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}
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% \end{macrocode}
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% \end{macro}
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%
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% \begin{macro}{sectiontitleformat}
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% Control the case style of the section title
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% \begin{macrocode}
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\pgfkeys{
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/metropolis/inner/sectiontitleformat/.cd,
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.is choice,
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regular/.code=\renewcommand{\@metropolis@sectiontitleformat}{},
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lowercase/.code={%
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\renewcommand{\@metropolis@sectiontitleformat}{\MakeLowercase}
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},
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uppercase/.code={%
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\renewcommand{\@metropolis@sectiontitleformat}{\MakeUppercase}
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},
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}
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% \end{macrocode}
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% \end{macro}
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%
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% \begin{macro}{sectionpage}
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% The |sectionpage| option defines the behaviour of the sectionpage.
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% \begin{macrocode}
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\pgfkeys{
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/metropolis/inner/sectionpage/.cd,
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.is choice,
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none/.code=\@metropolis@sectionpage@none,
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simple/.code=\@metropolis@sectionpage@simple,
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progressbar/.code=\@metropolis@sectionpage@progressbar,
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}
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% \end{macrocode}
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% \end{macro}
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%
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% \begin{macro}{\@metropolis@inner@setdefaults}
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% Set default values for inner theme options.
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% \begin{macrocode}
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\newcommand{\@metropolis@inner@setdefaults}{
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\pgfkeys{/metropolis/inner/.cd,
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sectionpage=progressbar,
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block=transparent,
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titleformat=lowercase,
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sectiontitleformat=lowercase,
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}
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}
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% \end{macrocode}
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% \end{macro}
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%
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%
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%
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% \subsubsection{Title page}
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%
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% \begin{macro}{\@metropolis@titleformat}
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% Define hooks to change the case format of the titles.
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% \begin{macrocode}
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\def\@metropolis@titleformat#1{#1}
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\def\@metropolis@sectiontitleformat#1{#1}
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% \end{macrocode}
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% \end{macro}
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%
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% To make the |\MakeLowercase| and |\MakeUppercase| macros work in the
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% sectiontitle we have to patch |\sectionentry| and |\beamer@section|. This
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% solution was suggested by Enrico Gregorio in an answer to
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% \href{http://tex.stackexchange.com/questions/112526/}{this StackExchange
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% question}.
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%
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% \begin{macrocode}
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\patchcmd{\sectionentry}
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{\def\insertsectionhead{#2}}
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{\def\insertsectionhead{\@metropolis@sectiontitleformat{#2}}}
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{}
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{\PackageError{beamerinnerthememetropolis}{Patching section title failed.}}
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\patchcmd{\beamer@section}
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{\def\insertsectionhead{\hyperlink{Navigation\the\c@page}{#1}}}
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{\def\insertsectionhead{\hyperlink{Navigation\the\c@page}{\@metropolis@sectiontitleformat{#1}}}}
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{}
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{\PackageError{beamerinnerthememetropolis}{Patching section title failed.}}
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% \end{macrocode}
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%
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% \begin{macro}{title page}
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% Template for the title page. Each element is only typset if it is defined
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% by the user. If |\subtitle| is empty, for example, it won't leave a blank
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% space on the title slide.
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% \begin{macrocode}
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\setbeamertemplate{title page}{
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\begin{minipage}[b][\paperheight]{\textwidth}
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\ifx\inserttitlegraphic\@empty\else\usebeamertemplate*{title graphic}\fi
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\vfill%
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\ifx\inserttitle\@empty\else\usebeamertemplate*{title}\fi
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\ifx\insertsubtitle\@empty\else\usebeamertemplate*{subtitle}\fi
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\usebeamertemplate*{title separator}
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% \end{macrocode}
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%
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% Beamer's definition of |\insertauthor| is always nonempty, so we have
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% to test another macro initialized by |\author{...}| to see if the user has
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% defined an author. This solution was suggested by Enrico Gregorio in an
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% answer to \href{https://tex.stackexchange.com/questions/241306/}{this
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% Stack Exchange question}.
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%
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% \begin{macrocode}
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\ifx\beamer@shortauthor\@empty\else\usebeamertemplate*{author}\fi
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\ifx\insertdate\@empty\else\usebeamertemplate*{date}\fi
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\ifx\insertinstitute\@empty\else\usebeamertemplate*{institute}\fi
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\vfill
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\vspace*{1mm}
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\end{minipage}
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}
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% \end{macrocode}
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% \end{macro}%
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%
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% Normal people should use |\maketitle| or |\titlepage| instead of using the
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% |title page| beamer template directly. Beamer already defines these macros,
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% but we patch them here to make the title page |[plain]| by default, remove
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% |\@thanks|, and ensure the title frame number doesn't count.
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%
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% \begin{macro}{\maketitle}
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% \begin{macro}{\titlepage}
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%
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% Inserts the title frame, or causes the current frame to use the
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% |title page| template.
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%
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% \begin{macrocode}
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\def\maketitle{%
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\ifbeamer@inframe
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\titlepage
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\else
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\frame[plain]{\titlepage}
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\fi
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}
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\def\titlepage{%
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\usebeamertemplate{title page}
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}
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% \end{macrocode}
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% \end{macro}
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% \end{macro}
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%
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% \begin{macro}{title graphic}
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% Set the title graphic in a zero-height box, so it doesn't change the
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% position of other elements.
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% \begin{macrocode}
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\setbeamertemplate{title graphic}{
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\vbox to 0pt {
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\vspace*{2em}
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\inserttitlegraphic%
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}%
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\nointerlineskip%
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}
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% \end{macrocode}
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% \end{macro}
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%
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% \begin{macro}{title}
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% Set the title on the title page.
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% \begin{macrocode}
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\setbeamertemplate{title}{
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\raggedright%
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\linespread{1.0}%
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\@metropolis@titleformat{\inserttitle}%
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\par%
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\vspace*{0.5em}
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}
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% \end{macrocode}
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% \end{macro}
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%
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% \begin{macro}{subtitle}
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% Set the subtitle on the title page.
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% \begin{macrocode}
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\setbeamertemplate{subtitle}{
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\insertsubtitle%
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\par%
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\vspace*{0.5em}
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}
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% \end{macrocode}
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% \end{macro}
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%
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% \begin{macro}{title separator}
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% Template to set the title graphic in a zero-height box. (It won't
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% change the position of other elements.)
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% \begin{macrocode}
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\setbeamertemplate{title separator}{
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\begin{tikzpicture}
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\draw[fg] (0, 0) -- (\textwidth, 0);
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\end{tikzpicture}%
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\par%
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}
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% \end{macrocode}
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% \end{macro}
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%
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% \begin{macro}{author}
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% Set the author on the title page.
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% \begin{macrocode}
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\setbeamertemplate{author}{
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\vspace*{2em}
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\insertauthor%
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\par%
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\vspace*{0.25em}
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}
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% \end{macrocode}
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% \end{macro}
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%
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% \begin{macro}{date}
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% Set the date on the title page.
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% \begin{macrocode}
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\setbeamertemplate{date}{
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\insertdate%
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\par%
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}
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% \end{macrocode}
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% \end{macro}
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%
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% \begin{macro}{institute}
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% Set the institute on the title page.
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% \begin{macrocode}
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\setbeamertemplate{institute}{
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\vspace*{3mm}
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\insertinstitute%
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\par%
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}
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% \end{macrocode}
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% \end{macro}
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%
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%
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%
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% \subsubsection{Section page}
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%
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% \begin{macro}{section page}
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%
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% Template for the section title slide at the beginning of each section.
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%
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% \begin{macrocode}
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\newcommand{\@metropolis@sectionpage@none}{
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\AtBeginSection{
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% intenionally empty
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}
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}
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\defbeamertemplate{section page}{simple}{
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\centering
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\usebeamercolor[fg]{section title}
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\usebeamerfont{section title}
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\insertsectionhead\\
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}
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\newcommand{\@metropolis@sectionpage@simple}{
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\setbeamertemplate{section page}[simple]
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\AtBeginSection{
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\ifbeamer@inframe
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\sectionpage
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\else
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\frame[plain,c]{\sectionpage}
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\fi
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}
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}
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\defbeamertemplate{section page}{progressbar}{
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\centering
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\begin{minipage}{22em}
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\usebeamercolor[fg]{section title}
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\usebeamerfont{section title}
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\insertsectionhead\\[-1ex]
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\usebeamertemplate*{progress bar in section page}
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\end{minipage}
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\par
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}
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\newcommand{\@metropolis@sectionpage@progressbar}{
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\setbeamertemplate{section page}[progressbar]
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\AtBeginSection{
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\ifbeamer@inframe
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\sectionpage
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\else
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\frame[plain,c]{\sectionpage}
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\fi
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}
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}
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% \end{macrocode}
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% \end{macro}
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%
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% \begin{macro}{progress bar in section page}
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%
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% Template for the progress bar displayed by default on the section page.
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% This code is duplicated in large part in the outer theme's template
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% |progress bar in head/foot|.
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%
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% \begin{macrocode}
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\newlength{\metropolis@progressonsectionpage}
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\setbeamertemplate{progress bar in section page}{
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\setlength{\metropolis@progressonsectionpage}{%
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\textwidth * \ratio{\insertframenumber pt}{\inserttotalframenumber pt}%
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}%
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\begin{tikzpicture}
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\draw[bg, fill=bg] (0,0) rectangle (\textwidth, 0.4pt);
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\draw[fg, fill=fg] (0,0) rectangle (\metropolis@progressonsectionpage, 0.4pt);
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\end{tikzpicture}%
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}
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% \end{macrocode}
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%
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% The above code assumes that |\insertframenumber| is less than or equal to
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% |\inserttotalframenumber|. However, this is not true on the first compile;
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% in the absence of an |.aux| file, |\inserttotalframenumber| defaults to 1.
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% This behaviour could cause fatal errors for long presentations, as
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% |\metropolis@progressonsectionpage| would exceed \TeX's maximum length
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% (16383.99999pt, roughly 5.75 metres or 18.9 feet).
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% To avoid this, we increase the default value for |\inserttotalframenumber|;
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% presentations with over 4000 slides will still break on first compile, but
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% users in that situation likely have deeper problems to solve.
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%
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% \begin{macrocode}
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\def\inserttotalframenumber{100}
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% \end{macrocode}
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% \end{macro}
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%
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%
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%
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% \subsubsection{Block environments}
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%
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% Regular block environment
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%
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% \begin{macrocode}
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\newlength{\@metropolis@blockskip}
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\setbeamertemplate{block begin}{%
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\vspace*{1ex}
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\begin{beamercolorbox}[%
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ht=2.4ex,
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dp=1ex,
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leftskip=\@metropolis@blockskip,
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rightskip=\@metropolis@blockskip]{block title}
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\usebeamerfont*{block title}\insertblocktitle%
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\end{beamercolorbox}%
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\vspace*{-1pt}
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\usebeamerfont{block body}%
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\begin{beamercolorbox}[%
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dp=1ex,
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leftskip=\@metropolis@blockskip,
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rightskip=\@metropolis@blockskip,
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vmode]{block body}%
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}
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\setbeamertemplate{block end}{%
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\end{beamercolorbox}
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\vspace*{0.2ex}
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}
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% \end{macrocode}
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%
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% Alerted block environment
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%
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% \begin{macrocode}
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\setbeamertemplate{block alerted begin}{%
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\vspace*{1ex}
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\begin{beamercolorbox}[%
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ht=2.4ex,
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dp=1ex,
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leftskip=\@metropolis@blockskip,
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rightskip=\@metropolis@blockskip]{block title alerted}
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\usebeamerfont*{block title alerted}\insertblocktitle%
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\end{beamercolorbox}%
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\vspace*{-1pt}
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\usebeamerfont{block body alerted}%
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\begin{beamercolorbox}[%
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dp=1ex,
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leftskip=\@metropolis@blockskip,
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rightskip=\@metropolis@blockskip,
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vmode]{block body}%
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}
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\setbeamertemplate{block alerted end}{%
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\end{beamercolorbox}
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\vspace*{0.2ex}
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}
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% \end{macrocode}
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%
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% Example block environment
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%
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% \begin{macrocode}
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\setbeamertemplate{block example begin}{%
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\vspace*{1ex}
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\begin{beamercolorbox}[%
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ht=2.4ex,
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dp=1ex,
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leftskip=\@metropolis@blockskip,
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rightskip=\@metropolis@blockskip]{block title example}
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\usebeamerfont*{block title example}\insertblocktitle%
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\end{beamercolorbox}%
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\vspace*{-1pt}
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\usebeamerfont{block body example}%
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\begin{beamercolorbox}[%
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dp=1ex,
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leftskip=\@metropolis@blockskip,
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rightskip=\@metropolis@blockskip,
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vmode]{block body}%
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}
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\setbeamertemplate{block example end}{%
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\end{beamercolorbox}
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\vspace*{0.2ex}
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}
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% \end{macrocode}
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%
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%
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%
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% \subsubsection{Lists and floats}
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%
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% \begin{macrocode}
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\setbeamertemplate{itemize items}{\textbullet}
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\setbeamertemplate{caption label separator}{: }
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\setbeamertemplate{caption}[numbered]
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% \end{macrocode}
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%
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%
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%
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% \subsubsection{Footnotes}
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% \begin{macrocode}
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\setbeamertemplate{footnote}{%
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\parindent 0em\noindent%
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\raggedright
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\usebeamercolor{footnote}\hbox to 0.8em{\hfil\insertfootnotemark}\insertfootnotetext\par%
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}
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% \end{macrocode}
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%
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%
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%
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% \subsubsection{Text and spacing settings}
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%
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% \begin{macrocode}
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\setlength{\parskip}{0.5em}
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\linespread{1.15}
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% \end{macrocode}
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%
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% By default, Beamer frames offer the |c| option to \textit{almost} vertically
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% center the text, but the placement is a little too high. To fix this, we
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% redefine the |c| option to equalize |\beamer@frametopskip| and
|
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% |\beamer@framebottomskip|. This solution was suggested by Enrico Gregorio in
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|
% an answer to \href{http://tex.stackexchange.com/questions/247826/}{this
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% Stack Exchange question}.
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%
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% \begin{macrocode}
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\define@key{beamerframe}{c}[true]{% centered
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\beamer@frametopskip=0pt plus 1fill\relax%
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\beamer@framebottomskip=0pt plus 1fill\relax%
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\beamer@frametopskipautobreak=0pt plus .4\paperheight\relax%
|
|
\beamer@framebottomskipautobreak=0pt plus .6\paperheight\relax%
|
|
\def\beamer@initfirstlineunskip{}%
|
|
}
|
|
% \end{macrocode}
|
|
%
|
|
% Process package options
|
|
%
|
|
% \begin{macrocode}
|
|
\@metropolis@inner@setdefaults
|
|
\ProcessPgfPackageOptions{/metropolis/inner}
|
|
% \end{macrocode}
|
|
%
|
|
% \iffalse
|
|
%</package>
|
|
% \fi
|
|
% \Finale
|
|
\endinput
|