Fix listing-incompatibility, I think

polynom/beamerouterthemepolynom.sty

@@ -2,6 +2,7 @@
 
 \RequirePackage{calc}
 \RequirePackage{graphicx}
+\RequirePackage{ifthen}
 
 %%% TODO implement footer
 \defbeamertemplate*{footertext}{polynom}{}
@@ -36,14 +37,18 @@
 %%%
 % Frame title
 %%%
-
-\newlength\vertlinebase%
+\newlength{\polyVertlinebase}
 \defbeamertemplate*{frametitle}{polynom}
 {%
-  \if\insertframesubtitle\empty\setlength{\vertlinebase}{0.75ex}\else\empty\setlength{\vertlinebase}{0pt}\fi%
-  \usebeamercolor{palette primary}%
+  \ifthenelse{\equal{\insertframesubtitle}{}}{
+    \setlength{\polyVertlinebase}{.75ex}
+  }{
+    \setlength{\polyVertlinebase}{.0ex}
+  }
+  %\if\insertframesubtitle\empty\def\polyVertlinebase{1ex}\else\def\polyVertlinebase{0pt}\fi%
+  \usebeamercolor{palette primary}% 
   \vskip1.5\titleheight%
-  \hspace{-1em}\tikz[baseline=\vertlinebase]{\draw[line width=2pt,color=bg] (0,0)--(0,1.75\titleheight);}%
+  \hspace{-1em}\tikz[baseline=\polyVertlinebase]{\draw[line width=2pt,color=bg] (0,0)--(0,1.75\titleheight);}%
   \hbox{\hspace{24pt}\vbox{\fontsize{36pt}{0pt}\selectfont\if\insertframesubtitle\empty\empty\else\insertframesubtitle\\\fi
       \fontsize{50pt}{40pt}\selectfont\insertframetitle}}%
 }

polynom/docu_polynom.tex

-\documentclass[fragile=singleslide]{beamer}
+\documentclass[fragile]{beamer}
 
 \usetheme{polynom}
 \usefonttheme[onlymath]{serif}
 \boldmath{}
 
+\usepackage{listings}
+\lstset{basicstyle=\ttfamily}
+
 \usepackage{tgadventor}
 
 \title{Polynom}
@@ -18,7 +21,7 @@
   \titlepage
 \end{frame}
 
-\begin{frame}{Table of Contents}
+\begin{frame}[fragile]{Table of Contents}
   \tableofcontents
 \end{frame}
 
@@ -42,13 +45,14 @@
 \end{frame}
 
 \section{Features}
-\begin{frame}[fragile=singleslide]
+\begin{frame}[fragile]
   \framesubtitle{Clean and pleasing:}
   \frametitle{Framedesign}
   To use stacked headlines, you have to specify
   \begin{itemize}
-  \item the upper line with \verb|\framesubtitle{...}|
-  \item the lowe (main) line with \verb|\frametitle{...}|
+    \item a
+    \item the upper line with \lstinline|\framesubtitle{...}|
+    \item the lowe (main) line with \lstinline|\frametitle{...}|
   \end{itemize}
 \end{frame}
 
@@ -208,6 +212,16 @@
 
 \bannerpageinvert{inverted banner page!}
 
+\section{Sourcecode-Listings}
+\begin{frame}[fragile]{Lisitngs}
+  \begin{lstlisting}[language=Python]
+def speed(swallow):
+    if swallow is african:
+        return 42
+    if swalllow is european:
+        return 24
+  \end{lstlisting}
+\end{frame}
 
 \section{Postamble}
 \begin{frame}{Development}

polynom/test_lst.tex

+\documentclass[fragile=singleslide]{beamer}
+\usepackage{fontspec}
+\setromanfont{Latin Modern Roman}
+%\setmainfont{Product Sans}
+%\setsansfont{Product Sans}
+\setsansfont{TeX Gyre Adventor}
+\setmonofont{Fira Mono}
+
+\usetheme{polynom}
+\usecolortheme{polynomsecondgrade}
+\usefonttheme[onlymath]{serif}
+\boldmath{}
+\usepackage{listings}
+
+
+\lstset{basicstyle=\ttfamily}
+
+\usepackage{tgadventor}
+
+\title{Polynom}
+\subtitle{A modern, clean 16:9 beamer template}
+\author{Alexander Bartolomey, Adrian C. Hinrichs}
+\date{\today}
+
+\begin{document}
+\begin{frame}[fragile]
+  \texttt{Test}
+  \begin{lstlisting}
+    Test
+  \end{lstlisting}
+\end{frame}
+\end{document}