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使 singlelinecheck 与 widefigure 配合使用

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使 singlelinecheck 与 widefigure 配合使用

描述

对于标准figure环境，如果标题适合一行，则标题居中，否则标题左对齐。

在此处输入图片描述

然而，当使用figure*来自sidenotes包，这种行为不存在：两种情况下标题都是左对齐的。

在此处输入图片描述

问题

figure*如果标题只占一行，如何才能让它们居中（重要的：如果可能的话，我希望线宽等于文本宽度 + 边距宽度。长度超过文本宽度但小于文本宽度 + 边距宽度的线应算作单行）？到目前为止，我尝试过但似乎不起作用的是

\usepackage[singlelinecheck=true]{caption}

或者

\DeclareCaptionStyle{widefigure}{singlelinecheck=true}

任何帮助都将受到赞赏。

梅威瑟：

\documentclass[paper=a4]{scrartcl}
\usepackage[utf8]{inputenc}

% to fit both figures on one page
\usepackage[left=6cm, right=6cm, top=1cm, bottom=1cm]{geometry}
\usepackage{showframe}
\usepackage{sidenotes}
\usepackage{graphicx}

% neither option works
%\usepackage[singlelinecheck=true]{caption}
%\DeclareCaptionStyle{widefigure}{singlelinecheck=true}

\begin{document}

\begin{figure*}[h]
    \centering
    \includegraphics[width=\linewidth]{example-image-a}
    \caption{A figure}
    \label{fig:m}
\end{figure*}

\begin{figure*}[h]
    \centering
    \includegraphics[width=\linewidth]{example-image-a}
    \caption{A figure with very very very very long text it does not even stop? Will it ever stop? It should be long enough to not fit into a single line, at least I hope so.}
    \label{fig:m}
\end{figure*}

\begin{figure}[h]
    \centering
    \includegraphics[width=\linewidth]{example-image-a}
    \caption{A figure}
    \label{fig:m}
\end{figure}

\begin{figure}[h]
    \centering
    \includegraphics[width=\linewidth]{example-image-a}
    \caption{A figure with very very very very long text it does not even stop? Will it ever stop? It should be long enough to not fit into a single line, at least I hope so.}
    \label{fig:m}
\end{figure}

\end{document}

答案1

\DeclareCaptionStyle如果检测到单行，则有一个可选参数用于设置。您应该在那里设置居中。

caption 用于\hsize测量和居中，但 adjustwidth 不设置它。我在这里使用钩子将其设置\hsize为\linewidth图形内部*，这需要新的 LaTeX。

\documentclass[paper=a4]{scrartcl}
\usepackage[utf8]{inputenc}

% to fit both figures on one page
\usepackage[left=6cm, right=6cm, top=1cm, bottom=1cm]{geometry}
\usepackage{showframe}
\usepackage{sidenotes}
\usepackage{graphicx}

\DeclareCaptionStyle{widefigure}[justification=centering]{font=footnotesize}
\AddToHook{env/figure*/begin}{\AddToHookNext{cmd/captionsetup/before}{\hsize\linewidth}}

\begin{document}

\begin{figure*}[h]
    \centering 
    \includegraphics[width=\linewidth]{example-image-a}
    \caption{A figure}
    \label{fig:m}
\end{figure*}

\begin{figure*}[h]
    \centering
    \includegraphics[width=\linewidth]{example-image-a}
    \caption{A figure with very very very very long text it does not even stop? Will it ever stop? It should be long enough to not fit into a single line, at least I hope so.}
    \label{fig:m}
\end{figure*}

\begin{figure}[h]
    \centering
    \includegraphics[width=\linewidth]{example-image-a}
    \caption{A figure}
    \label{fig:m}
\end{figure}

\begin{figure}[h]
    \centering
    \includegraphics[width=\linewidth]{example-image-a}
    \caption{A figure with very very very very long text it does not even stop? Will it ever stop? It should be long enough to not fit into a single line, at least I hope so.}
    \label{fig:m}
\end{figure}

\end{document}

答案2

我最终放弃修复侧注并简单地创建了我自己的图形*环境。

\documentclass[paper=a4]{scrartcl}
\usepackage[utf8]{inputenc}

% to fit both figures on one page
\usepackage[left=6cm, right=6cm, top=1cm, bottom=1cm]{geometry}
\usepackage{showframe}
\usepackage{ifoddpage}
\usepackage{graphicx}

\newsavebox{\widefigurebox}

\renewenvironment{figure*}[1][tbp]{\figure[#1]%
  \begin{lrbox}{\widefigurebox}%
    \minipage{\dimexpr \textwidth+\marginparsep+\marginparwidth\relax}}%
{\endminipage\end{lrbox}\checkoddpage
  \ifoddpage
    \usebox{\widefigurebox}\hspace{\dimexpr -\marginparsep-\marginparwidth}%
  \else
    \hspace{\dimexpr -\marginparsep-\marginparwidth}\usebox{\widefigurebox}%
  \fi
  \endfigure}


\begin{document}

\begin{figure*}[h]
    \centering
    \includegraphics[width=\linewidth]{example-image-a}
    \caption{normal caption}
    \label{fig:m}
\end{figure*}

\begin{figure*}[h]
    \centering
    \includegraphics[width=\linewidth]{example-image-a}
    \caption{A figure with very very very very long text it does not even stop? Will it ever stop? It should be long enough to not fit into a single line, at least I hope so.}
    \label{fig:m}
\end{figure*}

\begin{figure}[h]
    \centering
    \includegraphics[width=\linewidth]{example-image-a}
    \caption{A figure}
    \label{fig:m}
\end{figure}

\begin{figure}[h]
    \centering
    \includegraphics[width=\linewidth]{example-image-a}
    \caption{A figure with very very very very long text it does not even stop? Will it ever stop? It should be long enough to not fit into a single line, at least I hope so.}
    \label{fig:m}
\end{figure}

\end{document}

此版本将标题保留在文本区域内，而不是扩展到 marginpar 区域。我还决定使用 widefigure 而不是 figure*。

\documentclass[paper=a4]{scrartcl}
\usepackage[utf8]{inputenc}

% to fit both figures on one page
\usepackage[left=6cm, right=6cm, top=1cm, bottom=1cm]{geometry}
\usepackage{showframe}
\usepackage{ifoddpage}
\usepackage{graphicx}

\newsavebox{\widefigurebox}

\newenvironment{widefigure}[1][tbp]{\figure[#1]%
  \let\oldcaption=\caption
  \edef\oldwidth{\the\textwidth}%
  \checkoddpage
  \ifoddpage
    \renewcommand{\caption}[2][\empty]{\parbox{\oldwidth}{\ifx\empty##1\relax\oldcaption{##2}%
      \else\oldcaption[##1]{##2}\fi}\hfill}%
  \else
    \renewcommand{\caption}[2][\empty]{\hfill\parbox{\oldwidth}{\ifx\empty##1\relax\oldcaption{##2}%
      \else\oldcaption[##1]{##2}\fi}}%
  \fi
  \begin{lrbox}{\widefigurebox}%
    \minipage{\dimexpr \textwidth+\marginparsep+\marginparwidth}}% body here
{\endminipage\end{lrbox}%
  \ifoddpage
    \usebox\widefigurebox\hspace{\dimexpr -\marginparsep-\marginparwidth}%
  \else
    \hspace{\dimexpr -\marginparsep-\marginparwidth}\usebox\widefigurebox
  \fi
  \endfigure}

\begin{document}

\begin{widefigure}[h]
    \centering
    \includegraphics[width=\linewidth]{example-image-a}
    \caption{normal caption}
    \label{fig:m}
\end{widefigure}

\begin{widefigure}[h]
    \centering
    \includegraphics[width=\linewidth]{example-image-a}
    \caption{A figure with very very very very long text it does not even stop? Will it ever stop? It should be long enough to not fit into a single line, at least I hope so.}
    \label{fig:m}
\end{widefigure}

\begin{figure}[h]
    \centering
    \includegraphics[width=\linewidth]{example-image-a}
    \caption{A figure}
    \label{fig:m}
\end{figure}

\begin{figure}[h]
    \centering
    \includegraphics[width=\linewidth]{example-image-a}
    \caption{A figure with very very very very long text it does not even stop? Will it ever stop? It should be long enough to not fit into a single line, at least I hope so.}
    \label{fig:m}
\end{figure}

\end{document}

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