From de306ceccf9edccf08c890742f124b157444b679 Mon Sep 17 00:00:00 2001
From: Florian Fischer <florian.fischer@muhq.space>
Date: Sat, 30 Sep 2023 16:49:42 +0200
Subject: add new ruletoend command drawing a rule for the remaining hsize

---
 latex/common.tex | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/latex/common.tex b/latex/common.tex
index 55f6c2b6..031af2c4 100644
--- a/latex/common.tex
+++ b/latex/common.tex
@@ -117,3 +117,36 @@
 \DeclarePairedDelimiter\abs{\lvert}{\rvert}%
 
 \newcommand{\dist}[1]{\abs{\overline{#1}}}
+
+% Commands to determine the remaining hsize of a line
+% See: https://tex.stackexchange.com/questions/17349/is-there-a-way-to-measure-the-remaining-space-of-a-line-of-text
+\newcommand{\currentsidemargin}{%
+  \ifodd\value{page}%
+    \oddsidemargin%
+  \else%
+    \evensidemargin%
+  \fi%
+}
+
+\newlength{\whatsleft}
+
+\newcommand{\measureremainder}[1]{%
+\begin{tikzpicture}[overlay,remember picture]
+    % Helper nodes
+    \path (current page.north west) ++(\hoffset, -\voffset)
+        node[anchor=north west, shape=rectangle, inner sep=0, minimum width=\paperwidth, minimum height=\paperheight]
+        (pagearea) {};
+
+
+    \path (pagearea.north west) ++(1in+\currentsidemargin,-1in-\topmargin-\headheight-\headsep)
+        node[anchor=north west, shape=rectangle, inner sep=0, minimum width=\textwidth, minimum height=\textheight]
+        (textarea) {};
+
+    % Measure distance to right text border
+    \path let \p0 = (0,0), \p1 = (textarea.east) in
+        [/utils/exec={\pgfmathsetlength#1{\x1-\x0}\global#1=#1}];
+
+\end{tikzpicture}%
+}
+
+\newcommand{\ruletoend}[1]{\measureremainder{\whatsleft}\rule{\whatsleft}{#1}}
-- 
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