[Tex/LaTex] unexpected behaviour of \addtokomafont

koma-script

Regarding the following two examples my question is: Is it a bug or is it a feature (or do I miss something)?

\documentclass{scrbook}
\usepackage{xcolor}
% \addtokomafont{sectioning}{\color{green}}
 \addtokomafont{chapter}{\color{green}}
 \addtokomafont{section}{\color{green}}
 \addtokomafont{subsection}{\color{green}}
 \addtokomafont{subsubsection}{\color{green}}

\setlength{\textheight}{13\baselineskip}
\begin{document}
\chapter{test}

AAA

\section{test}

\subsection{subtest}

AAA
\end{document}

Please compare the results [sorry, I can not upload images] of the examples.

\documentclass{scrbook}
\usepackage{xcolor}
 \addtokomafont{sectioning}{\color{green}}
% \addtokomafont{chapter}{\color{green}}
% \addtokomafont{section}{\color{green}}
% \addtokomafont{subsection}{\color{green}}
% \addtokomafont{subsubsection}{\color{green}}

\setlength{\textheight}{13\baselineskip}
\begin{document}
\chapter{test}

AAA

\section{test}

\subsection{subtest}

AAA
\end{document}

The former one shows a page break between \section and \subsection.

Best Answer

With an uptodate KOMA-Script (at least version 3.21, current is 3.22) I do not get a page break between \section and \subsection.

Even if I use

\addtokomafont{section}{\color{blue}}
\addtokomafont{subsection}{\color{red}}

the result is

So you have to update your KOMA-Script version.

Workaround for version 3.20 or older:

You can add \nobreak after the \color command:

\documentclass{scrbook}
\usepackage{xcolor}
\addtokomafont{sectioning}{\color{green}\nobreak}
\addtokomafont{section}{\color{blue}\nobreak}
\addtokomafont{subsection}{\color{red}\nobreak}

\setlength{\textheight}{13\baselineskip}
\begin{document}
\chapter{test}
\KOMAScriptVersion
\section{test}
\subsection{subtest}
AAA
\end{document}

or \leavevmode before \color (see also this question):

\documentclass{scrbook}
\usepackage{xcolor}
\addtokomafont{sectioning}{\leavevmode\color{green}}% see https://tex.stackexchange.com/a/314243/43317
\addtokomafont{section}{\leavevmode\color{blue}}
\addtokomafont{subsection}{\leavevmode\color{red}}

\setlength{\textheight}{13\baselineskip}
\begin{document}
\chapter{test}
\KOMAScriptVersion
\section{test}
\subsection{subtest}
AAA
\end{document}

Both results in

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[Tex/LaTex] scrartcl and fancyhdr: Strange spacing behaviour

This is a well known and documented behavior of fancyhdr. If at the first usage of the defined header the package finds that the header is vertically bigger than \headheight, it will issue a message and change \headheight for the subsequent pages.

You will find the following message in your .log file:

Package Fancyhdr Warning: \headheight is too small (17.0pt):
 Make it at least 38.8842pt.
 We now make it that large for the rest of the document.
 This may cause the page layout to be inconsistent, however.

Thus you know that you need to set:

\setlength{\headheight}{39pt}

in your preamble (rounding is better):

\documentclass{scrartcl}
\usepackage{ifthen}

\setlength{\headheight}{39pt}

\usepackage{fancyhdr}
\pagestyle{fancy}
\fancyhf{}
\fancyhead[C]{%
  \ifthenelse{\equal{\value{page}}{1}}%
    {}%
    {\bfseries
     \makebox[0pt][r]{\smash{\vrule height 1cm depth 2cm}}boo\\
     boo\\
     boo%
    }%
}
\renewcommand{\headrulewidth}{0pt}

\begin{document}
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
\newpage
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
\newpage
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
\end{document}

[Tex/LaTex] Strange behaviour of \closing in koma-script scrlttr2 class

Marco Daniel already showed how to modify the behaviour of scrlttr2. The default behaviour is explained in section 21.1.7 of the KOMA-Script manual:

Closing phrase and signature will be typeset in a box. The width of the box is determined by the length of the longest line of the closing phrase or signature.

In other words, the closing phrase will be indented not if it is "relatively short", but if the phrase plus the appended comma is shorter than the signature.

Best Answer

Related Solutions

[Tex/LaTex] scrartcl and fancyhdr: Strange spacing behaviour

[Tex/LaTex] Strange behaviour of \closing in koma-script scrlttr2 class

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