From e91a6295cdd6cae23aa172f2b363e1ad660dc0e0 Mon Sep 17 00:00:00 2001
From: Jan Benda <jan.benda@uni-tuebingen.de>
Date: Wed, 3 Mar 2021 16:15:17 +0100
Subject: [PATCH] improved footline separators

---
 beamerthemelines.sty | 20 +++++++++++---------
 beamerthemeut.sty    | 10 +++++-----
 lines-example.tex    | 10 ++++++++--
 3 files changed, 24 insertions(+), 16 deletions(-)

diff --git a/beamerthemelines.sty b/beamerthemelines.sty
index d228cf8..2ffcea9 100644
--- a/beamerthemelines.sty
+++ b/beamerthemelines.sty
@@ -118,18 +118,20 @@
 %%%%% footline separator:
 
 \defbeamertemplate{footline separator}{text}[1][1pt]{%
-  {\usebeamercolor[fg]{footline separator}$\;\;$\rule[-0.55ex]{#1}{2.3ex}$\;$}}
+  {\usebeamercolor[fg]{footline separator}\enspace\rule[-0.55ex]{#1}{2.3ex}\thickspace}}
 \defbeamertemplate{footline separator}{full}[1][1pt]{%
-  {\usebeamercolor[fg]{footline separator}$\;\;$\rule[-1.2ex]{#1}{4ex}$\;$}}
+  {\usebeamercolor[fg]{footline separator}\enspace\rule[-1.2ex]{#1}{4ex}\thickspace}}
+\defbeamertemplate{footline separator}{dash}{%
+  {\usebeamercolor[fg]{footline separator}\thickspace{} ---\thickspace}}
 \defbeamertemplate{footline separator}{space}{%
-  {\usebeamercolor[fg]{footline separator}$\;\;\;$}}
+  {\usebeamercolor[fg]{footline separator}\enspace\thickspace}}
 
 \setbeamertemplate{footline separator}[text][0.5pt]
 
 
-%%%%% footline: lines
+%%%%% footline: linesleft
 
-\defbeamertemplate{footline}{lines}{%
+\defbeamertemplate{footline}{linesleft}{%
   \usebeamerfont{footline}%
   \usebeamertemplate{footline line}%
   \begin{beamercolorbox}[wd=1\paperwidth,dp=1.2ex,ht=2.8ex,sep=0pt,colsep=0pt,colsep*=0pt,%
@@ -177,7 +179,7 @@
   \end{beamercolorbox}
 }
 
-\setbeamertemplate{footline}[lines]
+\setbeamertemplate{footline}[linesleft]
 
 
 %%%%% frametitle %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -329,8 +331,8 @@
 
 \defbeamertemplate{title page author and}{space}{\def\beamer@andtitle{\quad}}
 \defbeamertemplate{title page author and}{comma}{\def\beamer@andtitle{,\quad}}
-\defbeamertemplate{title page author and}{line}{\def\beamer@andtitle{$\;\;\vert\;\;\;$}}
-\defbeamertemplate{title page author and}{and}{\def\beamer@andtitle{$\;$\&$\;\;$}}
+\defbeamertemplate{title page author and}{line}{\def\beamer@andtitle{\enspace$\vert$\enspace\thickspace}}
+\defbeamertemplate{title page author and}{and}{\def\beamer@andtitle{\thickspace\&\enspace}}
 
 \setbeamertemplate{title page author and}[line]
 
@@ -340,7 +342,7 @@
 \defbeamertemplate{title page institute and}{default}{}
 \defbeamertemplate{title page institute and}{space}{\def\beamer@andinst{\quad}}
 \defbeamertemplate{title page institute and}{comma}{\def\beamer@andinst{,\quad}}
-\defbeamertemplate{title page institute and}{line}{\def\beamer@andinst{$\;\;\vert\;\;\;$}}
+\defbeamertemplate{title page institute and}{line}{\def\beamer@andinst{\enspace$\vert$\enspace\thickspace}}
 
 \setbeamertemplate{title page institute and}[line]
 
diff --git a/beamerthemeut.sty b/beamerthemeut.sty
index 06a1e25..c94e9d5 100644
--- a/beamerthemeut.sty
+++ b/beamerthemeut.sty
@@ -39,12 +39,12 @@
 \setbeamertemplate{frametitle line}[page][0.75pt] % text, page
 
 \setbeamertemplate{page number in head/foot}[frames] % frames, framestotal, slides
-\setbeamertemplate{footline}[lines]               % default (no footline), lines
-\setbeamertemplate{footline line}[page][0.3pt]    % text, page
-\setbeamertemplate{footline separator}[text][0.3pt] % text, full
+\setbeamertemplate{footline}[linesleft]     % default, linesleft
+\setbeamertemplate{footline line}[page][0.3pt]      % text, page
+\setbeamertemplate{footline separator}[text][0.3pt] % text, full, dash, space
 
-\setbeamertemplate{itemize item}[arrow]   % default, triangle, circle, square, ball, arrow, dash
-\setbeamertemplate{itemize subitem}[dash] % default, triangle, circle, square, ball, arrow, dash
+\setbeamertemplate{itemize item}[arrow]     % default, triangle, circle, square, ball, arrow, dash
+\setbeamertemplate{itemize subitem}[dash]   % default, triangle, circle, square, ball, arrow, dash
 
 \setbeamertemplate{enumerate item}[arabic]  % default, circle, square, ball, alph, Alph, arabic, roman, Roman
 \setbeamertemplate{enumerate subitem}[alph] % default, circle, square, ball, alph, arabic, roman
diff --git a/lines-example.tex b/lines-example.tex
index d5297b5..d25cbdb 100644
--- a/lines-example.tex
+++ b/lines-example.tex
@@ -255,9 +255,12 @@
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
 \begin{frame}[fragile]{Footline}
-  \begin{block}{No footline}
+  \begin{block}{no footline}
     \verb!\setbeamertemplate{footline}[default]!
   \end{block}
+  \begin{block}{lines theme with author, title, etc. on the left}
+    \verb!\setbeamertemplate{footline}[linesleft]!
+  \end{block}
 \end{frame}
 
 \begin{frame}[fragile]{Footline line}
@@ -284,6 +287,9 @@
   \begin{block}{Full height vertical line}
     \verb!\setbeamertemplate{footline separator}[full][0.5pt]!
   \end{block}
+  \begin{block}{em dash}
+    \verb!\setbeamertemplate{footline separator}[dash]!
+  \end{block}
   \begin{block}{Just space}
     \verb!\setbeamertemplate{footline separator}[space]!
   \end{block}
@@ -316,7 +322,7 @@
     \verb!\end{frame}!
   \end{block}
   \vspace{2ex}
-  \begin{block}{Left adjusted}
+  \begin{block}{Flushed left}
     \verb!\setbeamertemplate{title page}[leftlines]!
   \end{block}
   \begin{block}{Centered}