章节标题作为图表列表中的超链接

Question

我想将章​​节标题添加到图表列表中。@GonzaloMedina 之前回答过这个问题使用titletoc。但是，并非所有章节都已编号，因此我希望 lof 中的章节标题能够像在目录中一样显示。

以下是 Gonzalo Medina 的序言：

\documentclass{report}

\usepackage{chngcntr}
\counterwithout{figure}{chapter}

\usepackage{etoolbox}  % or xpatch
\usepackage{titletoc}

\makeatletter
% initial definitions of the chapter info (name and number)
\def\thischaptertitle{}\def\thischapternumber{}
\newtoggle{noFigs}

\apptocmd{\@chapter}%
  {\gdef\thischaptertitle{#1}\gdef\thischapternumber{\thechapter}%
\global\toggletrue{noFigs}}{}{}

% the figure environment does the job: the first time it is used after a \chapter command, 
% it writes the information of the chapter to the LoF
\AtBeginDocument{%
  \AtBeginEnvironment{figure}{%
    \iftoggle{noFigs}{
       \addtocontents{lof}{\protect\contentsline {chapter}%
        {\protect\numberline {\thischapternumber} {\thischaptertitle}}{}{} }
      \global\togglefalse{noFigs}
    }{}
  }%
}
\makeatother

并创建以下文档：

\begin{document}

\tableofcontents
\listoffigures

\setcounter{secnumdepth}{-1}
\chapter{Preface with a figure}
\setcounter{chapter}{0}
\setcounter{secnumdepth}{2}

\begin{figure}
\caption{caption text}
\end{figure}

\chapter{Test Chapter with Figures}
\begin{figure}
\caption{caption text}
\end{figure}
\begin{figure}
\caption{caption text}
\end{figure}
\end{document}

产量

和

我的问题是

1. 如何隐藏前言章节号的显示？
2. 如何将其与hyperref包结合起来，让 lof 中的章节成为超链接？

Answer 1

该示例通过计数器控制章节编号secnumdepth。它还可用于定义\thischapternumber一个特殊值（空宏 = \@empty），以判断是否应隐藏章节编号。中的代码将\addtocontents检查\thischapternumber是否应隐藏章节编号\numberline。

的变化hyperref很小。锚点在 中被记住\thischapterHref并在 中使用\contentsline：

\documentclass{report}

\usepackage{chngcntr}
\counterwithout{figure}{chapter}

\usepackage{etoolbox}  % or xpatch
\usepackage{titletoc}

\makeatletter
% initial definitions of the chapter info (name and number)
\def\thischaptertitle{}\def\thischapternumber{}
\newtoggle{noFigs}

\apptocmd{\@chapter}{%
  \gdef\thischaptertitle{#1}%
  \ifnum\value{secnumdepth}>-1 %
    \gdef\thischapternumber{\thechapter}%
  \else
    \global\let\thischapternumber\@empty
  \fi
  \global\let\thischapterHref\@currentHref % hyperref
  \global\toggletrue{noFigs}%
}{}{}

% the figure environment does the job: the first time it is used after a
% \chapter command, 
% it writes the information of the chapter to the LoF
\AtBeginDocument{%
  \AtBeginEnvironment{figure}{%
    \iftoggle{noFigs}{%
      \addtocontents{lof}{%
        \protect\contentsline{chapter}{%
          \ifx\thischapternumber\@empty
          \else
            \protect\numberline{\thischapternumber}%
          \fi
          \thischaptertitle
        }{}{%
          \thischapterHref % hyperref
        }%
      }%
      \global\togglefalse{noFigs}%
    }{}%
  }%
}
\makeatother

\usepackage[colorlinks]{hyperref}

\begin{document}

\tableofcontents
\listoffigures

\setcounter{secnumdepth}{-1}
\chapter{Preface with a figure}
\setcounter{chapter}{0}
\setcounter{secnumdepth}{2}

\begin{figure}
\caption{caption text}
\end{figure}

\chapter{Test Chapter with Figures}
\begin{figure}
\caption{caption text}
\end{figure}
\begin{figure}
\caption{caption text}
\end{figure}
\end{document}