精致的章节样式

如何制作一个这样的小结样式的标签，如下图:

源代码如下:

\documentclass{article}
\usepackage[a5paper,vmargin=2cm]{geometry}
\usepackage{background}
\usepackage{etoolbox}
\usepackage{totcount}
\usepackage{lipsum}
% to have access to the total number of sections
\regtotcounter{section}
% every section starts on a new page
\pretocmd{\section}{\clearpage}{}{}
% auxiliary lengths for the height of the frame and the width of each tab
\newlength\mylen
\newlength\mylena
% style for the section tabs
\tikzset{tab/.style={
text width=\mylena,anchor=south,
draw=gray,thick,rectangle,rounded corners=12pt,rotate=270,
align=center,text height=20pt,
text depth=25pt,inner sep=0pt,fill=gray!20,
yshift=-18pt,font=\sffamily\LARGE}}
% style for the current section tab
\tikzset{selectedtab/.style={tab,color=white,fill=gray!90}}
% the page number is showed in the background material
\pagestyle{empty}
\AtBeginDocument{
% calculation of the width for each tab
\setlength\mylen{\dimexpr\textheight+2cm\relax}
\ifnum\totvalue{section}>0
\setlength\mylena{\dimexpr\mylen/\totvalue{section}\relax}
\fi
% the main part; as background material we place the border,
% the section (current and other) tabs and the page number
\SetBgScale{1}
\SetBgColor{black}
\SetBgAngle{0}
\SetBgOpacity{1}
\SetBgContents{
\begin{tikzpicture}[remember picture, overlay]
\node[inner sep=0pt,text width=\the\dimexpr\textwidth+1.5cm\relax]
at (current page.center) (border) {\rule{0pt}{\dimexpr\textheight+2cm\relax}};
\foreach \valsection in {0,...,\numexpr\totvalue{section}-1\relax}
{
\node[\ifnum\thesection<\numexpr\valsection+1\relax tab\else \ifnum\thesection>\numexpr\valsection+1\relax tab\else selectedtab\fi\fi,xshift=(0.5+\valsection)*\mylena]
at (border.north east) (tab-\valsection) {Section \the\numexpr\valsection+1\relax};
}
\node[draw=gray,line width=2pt,rectangle,rounded corners=10pt,inner sep=0pt,
text width=\the\dimexpr\textwidth+1.5cm\relax,fill=white]
at (current page.center) {\rule{0pt}{\dimexpr\textheight+2cm\relax}};
\node[font=\LARGE\sffamily,fill=white]
at (border.south) {\makebox[3em][c]{\thepage}};
\end{tikzpicture}}
}
\begin{document}
\section{Test Section One}
\lipsum[1-3]
\section{Test Section Two}
\lipsum[1-3]
\section{Test Section Three}
\lipsum[1-3]
\section{Test Section Four}
\lipsum[2]
\end{document}

选自:http://tex.stackexchange.com/questions/75637/how-to-print-section-titles-like-tab-list