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在 beamer 中使用 bibentry 时垂直间距错误

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在 beamer 中使用 bibentry 时垂直间距错误

我想bibentry在 beamer 演示文稿中使用该包给出一些参考资料。但有时，例如，如果作者列表跨越多行，则输出中的垂直间距错误（见下图）。有没有办法调整错误的间距？ 在此处输入图片描述

这里是相应的 MWE：

\documentclass{beamer}

\usepackage{filecontents}
    \begin{filecontents}{\jobname.bib} 
    @article{RefA, 
        author  = {AFirstName ALastName}, 
        title   = {Title A}, 
        journal = {Journal A}, 
        volume  = {1},
        pages   = {345--678},
        year    = {9999}, 
    } 
    @article{RefB, 
        author  = {BFirstName BLastName}, 
        title   = {Title B}, 
        journal = {Journal B}, 
        volume  = {1},
        pages   = {345--678},
        year    = {9999}, 
    } 
    @article{Problem, 
        author  = {ProblemFirstName ProblemLastName and NoSolutionFirstName NoSolutionLastName}, 
        title   = {Title Problem}, 
        journal = {Journal Problem}, 
        volume  = {1},
        pages   = {345--678},
        year    = {9999}, 
    }  
\end{filecontents}

\usepackage{bibentry}
\nobibliography*

\begin{document}

\begin{frame}
    \frametitle{Bibentry -- Spacing Problem}
    \begin{itemize}
        \item \bibentry{RefA}
        \item \bibentry{RefB}
        \item \bibentry{Problem}
    \end{itemize}
\end{frame}

\begin{frame}
    \frametitle{Bibliography -- No Problem}
    \bibliographystyle{plain}
    \bibliography{\jobname.bib}
\end{frame}

\end{document}

答案1

问题在于引用单元之间使用了beamer的定义。其定义在 中以一些对于内联使用来说不必要的代码结尾。每当第一个新块（作者部分）之前的文本跨越多行时，就会出现奇怪的间距。\newblockbeamerbaselocalstructure.sty

因此，您需要制作一个提供\newblock字体更改功能的版本beamer，但不提供最终代码。这供正文使用。当您进入参考书目时，您应该恢复原始beamer定义，即\beamer@newblock。

示例输出

\documentclass{beamer}

\usepackage{filecontents}
    \begin{filecontents}{\jobname.bib} 
    @article{RefA, 
        author  = {AFirstName ALastName}, 
        title   = {Title A}, 
        journal = {Journal A}, 
        volume  = {1},
        pages   = {345--678},
        year    = {9999}, 
    } 
    @article{RefB, 
        author  = {BFirstName BLastName}, 
        title   = {Title B}, 
        journal = {Journal B}, 
        volume  = {1},
        pages   = {345--678},
        year    = {9999}, 
    } 
    @article{Problem, 
        author  = {ProblemFirstName ProblemLastName and NoSolutionFirstName NoSolutionLastName}, 
        title   = {Title Problem}, 
        journal = {Journal Problem}, 
        volume  = {1},
        pages   = {345--678},
        year    = {9999}, 
    }  
\end{filecontents}

\usepackage{bibentry}
\nobibliography*

\def\mybeamernewblock{%
  \usebeamercolor[fg]{bibliography entry author}%
  \usebeamerfont{bibliography entry author}%
  \usebeamertemplate{bibliography entry author}%
  \def\newblock{%
    \usebeamercolor[fg]{bibliography entry title}%
    \usebeamerfont{bibliography entry title}%
    \usebeamertemplate{bibliography entry title}%
    \def\newblock{%
      \usebeamercolor[fg]{bibliography entry location}%
      \usebeamerfont{bibliography entry location}%
      \usebeamertemplate{bibliography entry location}%
      \def\newblock{%
        \usebeamercolor[fg]{bibliography entry note}%
        \usebeamerfont{bibliography entry note}%
        \usebeamertemplate{bibliography entry note}}}}%
  \leavevmode
}

\begin{document}

\let\newblock\mybeamernewblock
\begin{frame}
    \frametitle{Bibentry -- Spacing Problem}
    \begin{itemize}
        \item \bibentry{RefA}
        \item \bibentry{RefB}
        \item \bibentry{Problem}
    \end{itemize}
\end{frame}

\makeatletter
\let\newblock\beamer@newblock
\makeatother
\begin{frame}
    \frametitle{Bibliography -- No Problem}
    \bibliographystyle{plain}
    \bibliography{\jobname.bib}
\end{frame}

\end{document}

更新这可以被打包为一个环境，供在体内使用，同时保持局部变化，如下所示：

\documentclass{beamer}

\usepackage{filecontents}
    \begin{filecontents}{\jobname.bib} 
    @article{RefA, 
        author  = {AFirstName ALastName}, 
        title   = {Title A}, 
        journal = {Journal A}, 
        volume  = {1},
        pages   = {345--678},
        year    = {9999}, 
    } 
    @article{RefB, 
        author  = {BFirstName BLastName}, 
        title   = {Title B}, 
        journal = {Journal B}, 
        volume  = {1},
        pages   = {345--678},
        year    = {9999}, 
    } 
    @article{Problem, 
        author  = {ProblemFirstName ProblemLastName and NoSolutionFirstName NoSolutionLastName}, 
        title   = {Title Problem}, 
        journal = {Journal Problem}, 
        volume  = {1},
        pages   = {345--678},
        year    = {9999}, 
    }  
\end{filecontents}

\usepackage{bibentry}
\nobibliography*

\def\mybeamernewblock{%
  \usebeamercolor[fg]{bibliography entry author}%
  \usebeamerfont{bibliography entry author}%
  \usebeamertemplate{bibliography entry author}%
  \def\newblock{%
    \usebeamercolor[fg]{bibliography entry title}%
    \usebeamerfont{bibliography entry title}%
    \usebeamertemplate{bibliography entry title}%
    \def\newblock{%
      \usebeamercolor[fg]{bibliography entry location}%
      \usebeamerfont{bibliography entry location}%
      \usebeamertemplate{bibliography entry location}%
      \def\newblock{%
        \usebeamercolor[fg]{bibliography entry note}%
        \usebeamerfont{bibliography entry note}%
        \usebeamertemplate{bibliography entry note}}}}%
  \leavevmode
}

\newenvironment{references}{\begin{itemize}\let\newblock\mybeamernewblock}{\end{itemize}}

\begin{document}

\begin{frame}
    \frametitle{Bibentry -- Spacing Problem}
    \begin{references}
        \item \bibentry{RefA}
        \item \bibentry{RefB}
        \item \bibentry{Problem}
    \end{references}
\end{frame}

\begin{frame}
    \frametitle{Bibliography -- No Problem}
    \bibliographystyle{plain}
    \bibliography{\jobname.bib}
\end{frame}

\end{document}

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