DHBW.cls

% Class
\NeedsTeXFormat{LaTeX2e}
\ProvidesClass{DHBW}[2022/08/01 DHBW Beamer Class]
\LoadClassWithOptions{beamer}

% Theme
\usetheme[header=true,footer=true]{DHBW}

% Packages
\usepackage{blindtext}   % Blindtext:    \blindtext, \Blindtext
\usepackage{csquotes}    % Quotes:       \enquote{}
\usepackage{environ}     % Environments: \NewEnviron{}[][]{}
\usepackage{graphicx}    % Graphics:     \includegraphics[]{}
\usepackage{listings}    % Listings:     \lstinline!!, \begin{lstlisting} \end{lstlisting}, \lstinputlisting{}
\usepackage{tabulary}    % Tables:       \begin{tabulary}{\textwidth}{} \end{tabulary}
\usepackage{transparent} % Transparency: \transparent{}

% Placeholder for empty block title
\def\noblocktitle{\vspace*{-1ex}}

% Listings
\lstset
{
  basicstyle=\ttfamily\small,
  breaklines=true,
  breakatwhitespace=false
}

% URLs
\renewcommand\UrlFont\em

% Fonts
\usepackage{ifxetex}
\ifxetex % XeTex

  \usepackage{fontspec,xltxtra,xunicode}

  \setmainfont[Mapping=tex-text]{Helvetica}
  \setsansfont[Mapping=tex-text]{Helvetica}
  \setmonofont[Scale=MatchLowercase]{Courier}

  \usepackage{mathptmx}

  \usepackage{polyglossia}
  \setmainlanguage[babelshorthands=true]{german}

\else % pdfTeX

  \usepackage[utf8]{inputenc}
  \usepackage[T1]{fontenc}

  \usepackage[scaled=0.9]{helvet}
  \usepackage{courier}
  \usepackage{mathptmx}

  \usepackage[german,ngerman]{babel}

\fi

% Stickers
\usepackage{tcolorbox}
\tcbuselibrary{skins}
\usepackage[absolute,overlay]{textpos}
\setlength{\TPHorizModule}{\paperwidth}
\setlength{\TPVertModule}{\paperheight}
\TPshowboxesfalse

% Sticker: optionally rotated white box with frame and shadow
%          (placed inline)
\NewEnviron{sticker}[1][0]
{
  \tcbset{%
    boxrule=0.5pt,
    colback=white,
    colframe=dhbw-gray-light,
    drop lifted shadow,
    enhanced,
    sharp corners,
    tikz={rotate=#1,transform shape},
    tikznode upper
  }
  \centering
  \begin{tcolorbox}[hbox]
    \BODY
  \end{tcolorbox}
}

% Supersticker: optionally rotated white box with frame and shadow
%               (centered over the frame content)
\NewEnviron{supersticker}[1][0]
{
  \tcbset{%
    boxrule=0.5pt,
    colback=white,
    colframe=dhbw-gray-light,
    drop lifted shadow,
    enhanced,
    sharp corners,
    tikz={rotate=#1,transform shape},
    tikznode upper
  }
  \TPMargin{0ex}
  \TPReferencePosition{0.5, 0.5}
  \textblockorigin{0.5\paperwidth}{0.5\paperheight}
  \begin{textblock}{1}(0, 0)
    \centering
    \begin{tcolorbox}[hbox]
      \BODY
    \end{tcolorbox}
  \end{textblock}
}

% Sidesticker: optionally rotated yellow box with frame and shadow
%              (placed on the top right corner)
\NewEnviron{sidesticker}[1][0]
{
  \tcbset{%
    boxrule=0.5pt,
    colback=dhbw-yellow!10,
    colframe=dhbw-yellow!40,
    drop lifted shadow,
    enhanced,
    sharp corners,
    tikz={rotate=#1,transform shape},
    tikznode upper
  }
  \TPMargin{2ex}
  \TPReferencePosition{0, 0}
  \textblockorigin{0ex}{\headerheight}
  \begin{textblock}{1}(0, 0)
    \raggedleft
    \begin{tcolorbox}[hbox]
      \BODY
    \end{tcolorbox}
  \end{textblock}
}

\endinput