[Tex/LaTex] Translating custom \section format to titlesec

formattingindentationsectioningspacingtitlesec

I have some custom \section formatting with a horizontal rule, and I'm trying to DRY out my code by using titlesec to define default formatting options. But I can't exactly reproduce what happens when not using titlesec. Here's an example:

\documentclass{article}
\usepackage[explicit]{titlesec}
\usepackage{xhfill}

\begin{document}

% Plain xrfill:
\section*{\large\normalfont First Section \xrfill[0.6ex]{0.4pt}}
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

% Via titlesec:
\titleformat{\section}[runin]{\large}{\thetitle}{1em}{#1 \xrfill[0.6ex]{0.4pt}}
\section*{Second Section (\texttt{titlesec})}
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

% Titlesec with a \\ at the end:
\titleformat{\section}[runin]{\large}{\thetitle}{1em}{#1 \xrfill[0.6ex]{0.4pt}\\}
\section*{Third Section (line break)}
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

\end{document}

Note that using titlesec doesn't put the following text in a new paragraph. I tried to solve this with \\ but that doesn't work either. What can I do to make this work the same way as it would without titlesec?

Best Answer

Use the [display] style instead of the [runin] style:

\titleformat{\section}[display]{\large}{\thetitle}{1em}{#1\space\xrfill[0.6ex]{0.4pt}}
\section*{Second Section (\texttt{titlesec})}
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor
incididunt ut labore et dolore magna aliqua.

enter image description here

Related Solutions

[Tex/LaTex] Newline, indentation, parskip – when to use what in what stylistic manner

As mentioned in comments I think that usually in such circumstances the unindented paragraphs are logically section breaks with anonymous untitled sections. So like a titled section they suppress following indentation.

Spacing and font choice could be better and with acknowledgement to Douglas Adams, the except shown in the amazon fragment is I think logically something like this:

\documentclass{book}
\setcounter{secnumdepth}{0}

\begin{document}
\chapter{}

The house stood on a slight rise \ldots

The only person for whom the house was in any way special was Arthur Dent, and \ldots

\ldots bulldozer, found his slippers and stomped off to wash.

\vdots

Fifteen seconds later he was out of the house and lying in front of a big yellow bulldozer that was advancing up his garden path.

\section{}

Mr L. Prosser was, as they say, only human \ldots

He was by no means a great warrior \ldots
\end{document}

Which without any changes to the book layout produces this:

enter image description here

[Tex/LaTex] Width of \chapter section with titlesec

You can use the explicit option for titlesec to place the title inside a \parbox of the desired length; notice that now you need to use #1 (typically in the last mandatory argument for \titleformat) to get the title for the sectional unit. I used \textwidth-3em as the width for the box, but you can change this value according to your needs. In the example below I provided some definitions for the colors used since they were not given in the question:

\documentclass{scrbook}
\usepackage{xcolor}
\usepackage[explicit]{titlesec}
\usepackage{lmodern}% just for the example
\usepackage{lipsum}% just for the example
\usepackage{hyperref}

\colorlet{ctcolorchapterline}{cyan}
\colorlet{ctcolorchapternum}{cyan}

\titleformat{\chapter}[display]%
  {\usekomafont{chapter}}%
  {\vspace{-8em}\raggedleft{%
    {\color{ctcolorchapterline}%
        \rule[-5pt]{2pt}{5cm}}\quad%
    {\color{ctcolorchapternum}
        \fontsize{60}{60}\selectfont\thechapter}%
    }%
  }%
  {-2.1em}%
  {\parbox[b]{\dimexpr\textwidth-3em\relax}{\raggedright#1}}%
  [\phantomsection]

\begin{document}

\chapter{A test chapter with a long title that will span two lines}
\lipsum[4]

\end{document}

enter image description here

As egreg has pointed out in his comment, one can avoid using the explicit option using an auxiliary macro:

\documentclass{scrbook}
\usepackage{xcolor}
\usepackage{titlesec}
\usepackage{lmodern}% just for the example
\usepackage{lipsum}% just for the example
\usepackage{hyperref}

\colorlet{ctcolorchapterline}{cyan}
\colorlet{ctcolorchapternum}{cyan}

\newcommand\mychapformat[1]{%
  \parbox[b]{\dimexpr\textwidth-3em\relax}{\raggedright#1}}
\titleformat{\chapter}[display]%
  {\usekomafont{chapter}}%
  {\vspace{-8em}\raggedleft{%
    {\color{ctcolorchapterline}%
        \rule[-5pt]{2pt}{5cm}}\quad%
    {\color{ctcolorchapternum}
        \fontsize{60}{60}\selectfont\thechapter}%
    }%
  }%
  {-2.1em}%
  {\mychapformat}%
  [\phantomsection]

\begin{document}

\chapter{A test chapter with a long title that will span two lines}
\lipsum[4]

\end{document}

I added \sectfont to your definitions so you can keep the boldfaced sansseerf font used by default in KOMA sectional units:

\documentclass{scrbook}
\usepackage{xcolor}
\usepackage{titlesec}
\usepackage{lmodern}% just for the example
\usepackage{lipsum}% just for the example
\usepackage{hyperref}

\colorlet{ctcolorchapterline}{cyan}
\colorlet{ctcolorchapternum}{cyan}

\newcommand\mychapformat[1]{%
  \parbox[b]{\dimexpr\textwidth-3em\relax}{\raggedright#1}}
\titleformat{\chapter}[display]%
  {\usekomafont{chapter}\sectfont}%
  {\vspace{-8em}\raggedleft{%
    {\color{ctcolorchapterline}%
        \rule[-5pt]{2pt}{5cm}}\quad%
    {\color{ctcolorchapternum}
        \fontsize{60}{60}\selectfont\thechapter}%
    }%
  }%
  {-2.1em}%
  {\mychapformat}%
  [\phantomsection]

\begin{document}

\chapter{A test chapter with a long title that will span two lines}
\lipsum[4]

\end{document}

enter image description here

Notice that titlesec and KOMA-Script might not be fully compatible (you'll get a warning from the KOMA classes when loading titlesec); see Incompatibilities between KOMA-Script and titlesec

Best Answer

Related Solutions

[Tex/LaTex] Newline, indentation, parskip – when to use what in what stylistic manner

[Tex/LaTex] Width of \chapter section with titlesec

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