From 1f0979fa57cd969ee8c75fe958874acc6237a233 Mon Sep 17 00:00:00 2001
From: Anno Knierim <anno.knierim@tu-dortmund.de>
Date: Tue, 21 Mar 2023 11:12:20 +0100
Subject: [PATCH] Added command to add institute logo instead of name

This adds a `\institutelogo` command that allows to
add a logo instead of the short name of the institute to the
right side of the header.
---
 beamerthemetudo.sty | 9 ++++++++-
 example.tex         | 2 ++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/beamerthemetudo.sty b/beamerthemetudo.sty
index bb30a4a..00a17bb 100644
--- a/beamerthemetudo.sty
+++ b/beamerthemetudo.sty
@@ -18,6 +18,9 @@
 \setbeamersize{text margin left=15pt, text margin right=15pt}
 \usefonttheme{professionalfonts}
 
+% Adds an institute logo to the header
+\newcommand*\theinstitutelogo{}
+\newcommand*\institutelogo[1]{\renewcommand\theinstitutelogo{#1}}
 
 % If xelatex or lualatex, use fontspec to set fonts
 \newif\if@fontspec\@fontspecfalse
@@ -80,7 +83,11 @@
     leftskip=1em,
     rightskip=\beamer@rightmargin,
   ]{headline}%
-  \usebeamerfont{institute in head/foot}\hfill\insertshortinstitute[respectlinebreaks]
+    \ifx\theinstitutelogo\empty
+      \usebeamerfont{institute in head/foot}\hfill\insertshortinstitute[respectlinebreaks]
+    \else%
+      \hfill\theinstitutelogo
+    \fi%
   \end{beamercolorbox}%
   \vskip2ex%
   \ifnum\insertframenumber=1%
diff --git a/example.tex b/example.tex
index b2b7f78..4377678 100644
--- a/example.tex
+++ b/example.tex
@@ -38,6 +38,8 @@
 \institute[Kurzform Lehrstuhl]{Names des Lehrstuhls \\  Name der Fakultät}
 \titlegraphic{\includegraphics[width=0.7\textwidth]{images/tudo-title-2.jpg}}
 
+%% Add your institute logo to the header instead of short form of the institute name, e.g.
+%\institutelogo{\includegraphics[height=\headerheight]{<path_to_institute_logo>}}
 
 \begin{document}