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如何自定义“转到幻灯片编号”导航符号

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如何自定义“转到幻灯片编号”导航符号

我使用的是简化版的导航符号栏，其中仅包含\insertslidenavigationsymbol。我的演示文稿仅显示帧编号（而不是幻灯片编号），因为我使用了许多叠加层，幻灯片数量变得太多。问题是，如果公众要求我转到特定的帧编号（因为这是他们将看到的编号），那么导航按钮不会带我到我想要去的帧。

是否有办法自定义\insertslidenavigationsymbol选项，以便它带我到帧编号而不是幻灯片编号？

在以下示例中，您将看到，如果您使用导航符号转到幻灯片 3，它将带您到第 2 帧中的第 3 页（我想这是预期的行为）。但是，我希望它转到第 3 帧而是。有什么想法吗？我试过，\insertframenavigationsymbol但那个只允许我转到上一帧/下一帧，而不是特定的帧号。

\documentclass[compress]{beamer}

\useoutertheme[subsection=false]{miniframes}
\setbeamertemplate{navigation symbols}{\insertslidenavigationsymbol}

{
\defbeamertemplate{footline}{frame number and last}{%
  \usebeamercolor[fg]{page number in head/foot}%
  \usebeamerfont{page number in head/foot}%
   \hfill\insertframenumber\,/\,\inserttotalframenumber\kern1em\vskip2pt%
}

\setbeamertemplate{footline}[frame number and last]{}

\begin{document}
  \begin{frame}{This is frame 1}
    \onslide<1-2>{Some text\\}
    \onslide<2>{\invisible<1>{
    Some more text}}
  \end{frame}
   \begin{frame}{This is frame 2}
    This is frame 2
   \end{frame}
 \begin{frame}{This is frame 3}
    This is frame 3
 \end{frame}

\end{document}

答案1

以下解决方案使用 JavaScript 跳转到指定的框架。首先记住每个框架的起始页码（在宏中\FrPg@List）。在文档末尾，这些数据被写为 JavaScript 对象FrameList。还GoToFrame定义了一个函数，首先询问用户他想要访问的框架。在对答案进行一些验证后，计算页码，并根据 beamer 为每个页面设置的目标名称（Navigation+ 页码）查看框架。如果用户使用的框架号小于第一帧，则选择第一页。如果框架号太大，则使用最后一帧的起始页。

\documentclass[compress]{beamer}

\usepackage{atbegshi}
\usepackage{ltxcmds}
\usepackage{atveryend}

\makeatletter
\def\FrPg@List{}
\def\FrPg@Max{-2147483647}
\AtBeginShipout{%
  \ifnum\FrPg@Max<\value{framenumber}%
    \xdef\FrPg@Max{\the\value{framenumber}}%
  \fi
  \ltx@IfUndefined{FrPg@\number\value{framenumber}}{%
    \expandafter
    \xdef\csname FrPg@\number\value{framenumber}\endcsname{%
      \number\value{page}%
    }%
    \ifx\FrPg@List\ltx@empty
      \xdef\FrPg@List{%
        \number\value{framenumber}:\number\value{page}%
      }%
    \else
      \xdef\FrPg@List{%
        \FrPg@List
        ,\number\value{framenumber}:\number\value{page}%
      }%
    \fi
  }{}%
}
\def\FrPg@Script{FrameNavigation}
\AtVeryEndDocument{%
  \immediate\pdfobj{(%
    var FrameList={\FrPg@List};%
    var FrameMax=\FrPg@Max;%
    function GoToFrame(){%
      var frame=app.response({%
        % cQuestion:"Which frame?",%
        cTitle:"Go To  Frame",%
        cLabel:"Frame:"%
      });%
      if(frame==null)return;%
      var result=frame.match(/%
        ^%
        \ltx@backslashchar\ltx@backslashchar d+%
        $%
      /);%
      if(result==null){%
        app.alert("Invalid number!");%
        return;%
      }%
      var page=FrameList[frame];
      if(page==null&&frame>FrameMax)%
        page=FrameList[FrameMax];%
      if(page==null){%
        if(frame<1){%
          app.execMenuItem("FirstPage");%
          return;%
        }%
        app.alert("Frame `"+frame+"' not found!");%
        return;%
      }%
      this.gotoNamedDest("Navigation"+page);%
    }%
  )}%
  \immediate\pdfobj{%
    <<%
      /S/JS%
      /JS \the\pdflastobj\space 0 R%
    >>%
  }%
  \immediate\pdfobj{%
    <<%
      /Names[(\FrPg@Script)\the\pdflastobj\space0 R]%
    >>%
  }%
  \pdfnames{%
    /JavaScript \the\pdflastobj\space0 R%
  }%
}
\begin{Form}[]
\end{Form}
\def\insertslidenavigationsymbol{%
  \begin{pgfpicture}{0pt}{-1.5pt}{20pt}{5.5pt}
    \pgfuseobject{beamerslidenavstrong}%
    \usebeamercolor[fg]{navigation symbols dimmed}
    \pgfuseobject{beamerslidenavlight}%
  \end{pgfpicture}\kern-20pt%
  \hyperlinkslideprev{\beamer@linkspace{6pt}}%
  % \Acrobatmenu{GoToPage}{\beamer@linkspace{8pt}}%
  \PushButton[
    borderwidth=0,
    bordercolor=white,
    onclick=GoToFrame();
  ]{\beamer@linkspace{8pt}}%
  \hyperlinkslidenext{\beamer@linkspace{6pt}}%
}

\useoutertheme[subsection=false]{miniframes}
\setbeamertemplate{navigation symbols}{%
  \insertslidenavigationsymbol
}

\defbeamertemplate{footline}{frame number and last}{%
  \usebeamercolor[fg]{page number in head/foot}%
  \usebeamerfont{page number in head/foot}%
   \hfill\insertframenumber\,/\,\inserttotalframenumber\kern1em\vskip2pt%
}

\setbeamertemplate{footline}[frame number and last]{}

\begin{document}
\makeatletter
  \begin{frame}{This is frame 1}
    \onslide<1-2>{Some text\\}  
    \onslide<2>{\invisible<1>{  
    Some more text}}
  \end{frame}
   \begin{frame}{This is frame 2}
    This is frame 2
   \end{frame}
 \begin{frame}{This is frame 3}
    This is frame 3
 \end{frame}

\end{document}

答案2

您可以在模板中\insertframenavigationsymbol插入：\insertslidenavigationsymbolnavigation symbols

\documentclass[compress]{beamer}

\useoutertheme[subsection=false]{miniframes}
\setbeamertemplate{navigation symbols}{\insertframenavigationsymbol}

{
\defbeamertemplate{footline}{frame number and last}{%
  \usebeamercolor[fg]{page number in head/foot}%
  \usebeamerfont{page number in head/foot}%
   \hfill\insertframenumber\,/\,\inserttotalframenumber\kern1em\vskip2pt%
}

\setbeamertemplate{footline}[frame number and last]{}

\begin{document}
  \begin{frame}{This is frame 1}
    \onslide<1-2>{Some text\\}
    \onslide<2>{\invisible<1>{
    Some more text}}
  \end{frame}
   \begin{frame}{This is frame 2}
    This is frame 2
   \end{frame}
 \begin{frame}{This is frame 3}
    This is frame 3
 \end{frame}

\end{document}

如果要保留由以下程序提供的相同 (Acrobat) 弹出菜单幻灯片导航符号，你可以使用以下代码：

\documentclass[compress]{beamer}
\usepackage{tikz}

\useoutertheme[subsection=false]{miniframes}
\makeatletter
\def\insertmycustomframenavigationsymbol{%
  \begin{pgfpicture}{0pt}{-1.5pt}{20pt}{5.5pt}
    \pgfuseobject{beamerframenavstrong}%
    \usebeamercolor[fg]{navigation symbols dimmed}
    \pgfuseobject{beamerframenavlight}%
  \end{pgfpicture}\kern-20pt%
  %\hyperlinkframestartprev{\beamer@linkspace{6pt}}%
  \hyperlinkframeendprev{\beamer@linkspace{6pt}}%
  \Acrobatmenu{GoToPage}{\beamer@linkspace{8pt}}%
  \hyperlinkframestartnext{\beamer@linkspace{6pt}}%
}
\makeatother

\setbeamertemplate{navigation symbols}{\insertmycustomframenavigationsymbol}
{
\defbeamertemplate{footline}{frame number and last}{%
  \usebeamercolor[fg]{page number in head/foot}%
  \usebeamerfont{page number in head/foot}%
   \hfill\insertframenumber\,/\,\inserttotalframenumber\kern1em\vskip2pt%
}

\setbeamertemplate{footline}[frame number and last]{}

\begin{document}
  \begin{frame}{This is frame 1}
    \onslide<1-2>{Some text\\}
    \onslide<2>{\invisible<1>{
    Some more text}}
  \end{frame}
   \begin{frame}{This is frame 2}
    This is frame 2
   \end{frame}
 \begin{frame}{This is frame 3}
    This is frame 3
 \end{frame}
 \foreach \x in {4,...,10}{
   \begin{frame}{This is frame \x}
     This is frame \x
   \end{frame}
 }
\end{document}

笔记：正确的反向链接应该是，\hyperlinkframestartprev但是这个宏没有被定义beamer......

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