KOMA-Script (scrbook): onecolumn table of contents & minitoc in twocolumn document

Question

I have problem with formatting of my tables of contents. Please see my MNWE below. I would like to switch all of my tables into one column layout. I try to use solution from this tex.stackexchange answer, which use this peace of the tex code:

\unsettoc{toc}{onecolumn} 

but it seems, that doesn't work. I tried to understand manual scrbook (page 264), but unfortunately I did not get it. I use miktex/xelatex. I attach also pictures the result of translation.

\documentclass[twocolumn]{scrbook}
\usepackage[nohints]{minitoc}  
\unsettoc{toc}{onecolumn}
\usepackage{lipsum}
\begin{document}
\dominitoc
\tableofcontents
\chapter{Foo}
\minitoc
\lipsum[1]
\section{Bar}
\lipsum[2]
\subsection{Baz}
\lipsum[3]
\section{FooBarBaz}
\lipsum[4]
\end{document}

figure 1: Command \tableofcontents

---

figure 2: Command \minitoc

Answer 1

For the main toc

Please read carefully again the linked answer and the KOMA-Script documentation¹⁾: By default in scrbook (and scrreprt) the toc is set in onecolumn modus. Only, when you want to have it in two columns, you need \unsettoc{toc}{onecolumn}. So, leaving it out is the solution here …

For the minitoc

Use \setchapterpreamble²⁾. Note, you must set it before the chapter, where it belongs to. With two optional arguments you can influence position and width.

Also take notice, that I had to deactivate the rules before and after with \mtcsetrules{minitoc}{off}. As workaround I added two times \hrulefill (the first must be in \smash and then a make box [it would have worked without, but then a more difficult vertical space determining], the second would also work without, but I just copied it) and some vertical spaces. I guess, the \vspace must be individually adjusted to one’s font and font size.

Since you very probably will have more than one chapter, I defined two new commands, see below code for remarks. Because these have \setchapterpreamble inside (or are intended to use them inside), these must be set before each chapter.

\documentclass[twocolumn]{scrbook}
\usepackage[nohints]{minitoc}
\mtcsetrules{minitoc}{off}
\usepackage{lipsum}

\newcommand{\dochaptertoc}{%
  \vspace{1.85\baselineskip} % workaround for removed rule
  \smash{\makebox[\linewidth]{\hrulefill}} % workaround for removed rule
  \vspace{-1.85\baselineskip} % workaround for removed rule
  \minitoc
  \vspace{-1.15\baselineskip} % workaround for removed rule
  \smash{\makebox[\linewidth]{\hrulefill}} % workaround for removed rule
  \vspace{1.15\baselineskip} % workaround for removed rule
}
\newcommand{\setchaptertoc}{%
  \setchapterpreamble{% KOMA-Script command
    \dochaptertoc%
  }}

\begin{document}
\dominitoc
\tableofcontents

\setchaptertoc
\chapter{One}
\lipsum[1]
\section{One, one}
\lipsum[2]
\subsection{One, one, one}
\lipsum[3]
\section{One, two}
\lipsum[4]

\setchapterpreamble{
  \dictum{Time for a bon-mot.}% KOMA-Script command
  \dochaptertoc
}
\chapter{Two}
\lipsum[5]
\section{Two, one}
\lipsum[6]
\section{Two, two}
\subsection{two, two, one}
\lipsum[7]
\end{document}

In most cases it will be enough to put \setchaptertoc in front of a chapter. But for cases, when you want to add more than the minitoc, I defined \dochaptertoc with the workarounds for removed rules intended for use in \setchapterpreamble, cf. chapter 2 in the example.

¹⁾ Read online on Texdoc.net: “\setuptoc” & “\unsettoc” (PDF)

²⁾ Read online on Texdoc.net, as well: “\setpartpreamble” & “\setchapterpreamble” (PDF again)