This image provides a rough approximation of something I'd like to do in my book's ToC. I would like the sections within only one of my chapters to utilize a unique icon. For the sake of time, I've only provided an example for the first section. However, I'd like a unique icon to be used for each of the sections within one chapter. It is fine if the section numbers are retained; I just need the image to appear before the text of the section title.

(I am using the book class.)

• Are you a bundle of pictures (one for each section)? Is it only a icon for all sections? is it necessary to make it using some graphic package as tikz or ...? – skpblack Oct 26 '14 at 14:46
• So the icon is not supposed to occur in the section heading itself (i.e. on page 3, in the example)? – Hagen von Eitzen Oct 26 '14 at 16:54

Here's one way to do it using the titletoc package.

Use \iconsectioninToC just before the \chapter(s) in which you want to add the icon in the ToC; return to the standard formatting using \stdsectioninToC.

In the definition of \iconsectioninToC change the settings for the \includegraphics command and adjust the lengths to suit your needs.

\documentclass{book}
\usepackage{titletoc}
\usepackage{graphicx}

\makeatletter
\newcommand\stdsectioninToC{
\titlecontents{section}
[3.8em]
{}
{\contentslabel{2.3em}}
{\hspace*{-2.3em}}
{\titlerule*[1em]{.}\contentspage}
}
\newcommand\iconsectioninToC{
\titlecontents{section}
[3.8em]
{}
{\contentslabel{2.3em}%
\smash{\includegraphics[height=10pt]{image-5}}\hspace{0.5em}% change here
}
{\hspace*{-2.3em}}
{\titlerule*[1em]{.}\contentspage}
}
\AtBeginDocument{\stdsectioninToC}
\makeatother

\begin{document}

\tableofcontents

\chapter{A test chapter}
\section{First test section}
\section{Second test section}
\section{Third test section}
\section{Fourth test section}

\iconsectioninToC
\chapter{A test chapter}
\section{First test section}
\section{Second test section}
\section{Third test section}
\section{Fourth test section}

\stdsectioninToC
\chapter{A test chapter}
\section{First test section}
\section{Second test section}
\section{Third test section}
\section{Fourth test section}

\end{document}


The resulting ToC:

If each section entry has to receive its own image, you can use this simply variation, which assumes your image files are named image-1, image-2, image-3, etc.:

\documentclass{book}
\usepackage{titletoc}
\usepackage{graphicx}

\newcounter{mysecimage}

\makeatletter
\newcommand\stdsectioninToC{
\titlecontents{section}
[3.8em]
{}
{\contentslabel{2.3em}}
{\hspace*{-2.3em}}
{\titlerule*[1em]{.}\contentspage}
}
\newcommand\iconsectioninToC{
\titlecontents{section}
[3.8em]
{}
{\contentslabel{2.3em}%
\stepcounter{mysecimage}%
\smash{\includegraphics[height=10pt]{image-\the\value{mysecimage}}}\hspace{0.5em}% change here
}
{\hspace*{-2.3em}}
{\titlerule*[1em]{.}\contentspage}
}
\AtBeginDocument{\stdsectioninToC}
\makeatother

\begin{document}

\tableofcontents

\chapter{A test chapter}
\section{First test section}
\section{Second test section}
\section{Third test section}
\section{Fourth test section}

\iconsectioninToC
\chapter{A test chapter}
\section{First test section}
\section{Second test section}
\section{Third test section}
\section{Fourth test section}

\stdsectioninToC
\chapter{A test chapter}
\section{First test section}
\section{Second test section}
\section{Third test section}
\section{Fourth test section}

\end{document}


• Wow. Gonzalo, that is EXACTLY what I am after. However, I want to use a unique image for each of the sections. Is such a thing possible? – Linter Oct 26 '14 at 16:42
• @LarryTate sure, it's possible. Please see my updated answer. – Gonzalo Medina Oct 26 '14 at 16:59
• Wow. Thanks. I would have never figured that out. Thanks for your help, Gonzalo. – Linter Oct 26 '14 at 17:33
• @LarryTate You're welcome! Glad I could help. – Gonzalo Medina Oct 26 '14 at 17:35
• I'm not good enough to understand all that is going on in your code here. What is the purpose of the \stdsectioninToC command? Hopefully, I can get this to work in my book. – Linter Oct 26 '14 at 19:08