비머의 헤드라인

Question

나는 다음과 같은 헤드라인 구조를 가진 Beamer의 바르샤바 테마로 프리젠테이션을 만들고 있습니다:

\setbeamertemplate{headline}{%
\leavevmode%
  \hbox{%
    \begin{beamercolorbox}[wd=\paperwidth,ht=2.5ex,dp=1.125ex]{palette quaternary}%
    \insertsectionnavigationhorizontal{\paperwidth}{}{\hskip0pt plus1filll}
    \end{beamercolorbox}%
  }
}

현재 섹션을 강조 표시하여 이전-현재-이후 섹션 등 세 개의 섹션만 표시하는 방법은 무엇입니까? 섹션 수가 10개 정도이므로 모든 섹션을 헤드라인에 표시할 수 없습니다. 제안해주세요.

Answer 1

\documentclass{beamer}

\usetheme{Warsaw}

\AtBeginSection[]{\label{sec:\thesection}}

\usepackage{totcount}
\newcounter{totalsection}
\regtotcounter{totalsection}

\AtBeginDocument{%
  \pretocmd{\section}{\refstepcounter{totalsection}}{}{}%
}%

\newcounter{start}
\newcounter{stop}

\usepackage{pgffor}

\setbeamercolor{section in head/foot}{fg=white}
\setbeamercolor{section in head/foot shaded}{fg=white!60!bg}

\setbeamertemplate{headline}{%
\leavevmode%
  \hbox{%
    \begin{beamercolorbox}[wd=\paperwidth,ht=2.5ex,dp=1.125ex]{palette quaternary}%
        \ifnum\value{section}>0%
            \quad
            \setcounter{start}{\value{section}}
                \setcounter{stop}{\value{section}}
                \ifnum\value{section}>1
                    \addtocounter{start}{-1}
                \fi
                \ifnum\value{section}<\totvalue{totalsection}
                    \addtocounter{stop}{1}
                \fi     
                \foreach \i in {\thestart,...,\thestop}{%
                    \ifnum\i=\value{section}
                        \usebeamercolor[fg]{section in head/foot}
                    \else   
                        \usebeamercolor[fg]{section in head/foot shaded}
                    \fi
                    \hfill\hyperlink{sec:\i}{\nameref{sec:\i}}
                }
                \hfill\quad
            \fi
    \end{beamercolorbox}%
  }
}



\begin{document}

\section{test1}\begin{frame}abc\end{frame}  
\section{test2}\begin{frame}abc\end{frame}  
\section{test3}\begin{frame}abc\end{frame}  
\section{test4}\begin{frame}abc\end{frame}  
\section{test5}\begin{frame}abc\end{frame}  
\section{test6}\begin{frame}abc\end{frame}  
\section{test7}\begin{frame}abc\end{frame}  
\section{test8}\begin{frame}abc\end{frame}  
\section{test9}\begin{frame}abc\end{frame}  
\section{test10}\begin{frame}abc\end{frame} 
\section{test11}\begin{frame}abc\end{frame}     

\end{document}