%%%%%%%%%%%%%%%%%%%%%%
%% start of file `elegantbook.cls'.
%% Copyright 2013-2019 ElegantLaTeX (elegantlatex2e@gmail.com)
%%
%% This work may be distributed and/or modified freely
%% available at https://github.com/ElegantLaTeX
% %
%% Last Modification 2019-01-22
%%%%%%%%%%%%%%%%%%%%%
% % !Mode:: "TeX:UTF-8"
\NeedsTeXFormat{LaTeX2e}
\ProvidesClass{elegantbook}[2019/01/22 v3.05 ElegantBook document class]

\RequirePackage{kvoptions}
\RequirePackage{etoolbox}
\SetupKeyvalOptions{family=ELEGANT, prefix=ELEGANT@, setkeys=\kvsetkeys}
\newcommand{\ekv}[1]{\kvsetkeys{ELEGANT}{#1}}

% ----- Colors -----
\DeclareStringOption[green]{color}
% ----- backward compatibility
\DeclareVoidOption{green}{\ekv{color = green}}
\DeclareVoidOption{cyan}{\ekv{color = cyan}}
\DeclareVoidOption{blue}{\ekv{color = blue}}
\DeclareVoidOption{nocolor}{\ekv{color = none}}

% ----- Math option -----
\newcommand\mailto[1]{\href{mailto:#1}{\nolinkurl{#1}}}

% ----- Title Style -----
\DeclareStringOption[hang]{titlestyle}[hang]
% ----- backward compatibility
\DeclareVoidOption{hang}{\ekv{titlestyle = hang}}
\DeclareVoidOption{display}{\ekv{titlestyle = display}}
% ----- Default Options -----
\DeclareDefaultOption{\PassOptionsToClass{\CurrentOption}{book}}

\ProcessKeyvalOptions*\relax
% \ProcessOptions*\relax
\LoadClass[12pt,a4paper,openany]{book}

\RequirePackage{indentfirst}
\setlength\parindent{2em}

\RequirePackage{ifxetex}
\ifxetex
	\RequirePackage{fontenc}
	\RequirePackage[no-math]{fontspec}
	\setmainfont{Times New Roman}[NFSSFamily=ntxtlf]
	\setsansfont{Arial}
	%\setmonofont[Scale=0.9]{Courier New}
	\RequirePackage{xeCJK}
	\RequirePackage{xunicode}
	\setCJKmainfont[BoldFont={SimHei},ItalicFont={KaiTi}]{SimSun}
	\setCJKsansfont[BoldFont={SimHei},ItalicFont={KaiTi}]{KaiTi}
	\setCJKmonofont[BoldFont={SimHei},ItalicFont={KaiTi},Scale=0.9]{Microsoft YaHei}
	\XeTeXlinebreaklocale "zh"
	\XeTeXlinebreakskip = 0pt plus 1pt minus 0.1pt
	\RequirePackage{newtxmath}
	%\DeclareSymbolFont{operators}{OT1}{ntxtlf}{m}{n}
	%\SetSymbolFont{operators}{bold}{OT1}{ntxtlf}{b}{n}
\else
	\RequirePackage{fontenc}
	\RequirePackage{newtxtext}
	\RequirePackage{newtxmath}
	\RequirePackage[UTF8, scheme=plain]{ctex}
\fi
\RequirePackage[scale=0.8]{FiraMono}
%

% font setting for text and math
% \RequirePackage[T1]{fontenc}
% \RequirePackage{newtxtext}
% \RequirePackage{newtxmath}
% \RequirePackage[scale=0.85]{newtxtt}  
\RequirePackage{type1cm}

\DeclareSymbolFont{cmlargesymbols}{OMX}{cmex}{m}{n}
\DeclareMathSymbol{\intop}{\mathop}{cmlargesymbols}{"5A}
  \def\int{\intop\nolimits}
\DeclareMathSymbol{\ointop}{\mathop}{cmlargesymbols}{"49}
  \def\oint{\ointop\nolimits}
\DeclareMathSymbol{\sumop}{\mathop}{cmlargesymbols}{"58}
  \let\sum\sumop
\DeclareMathSymbol{\prodop}{\mathop}{cmlargesymbols}{"59}
  \let\prod\prodop


% ----- Handle Colors -----
%% 章节以及页脚图形

\RequirePackage{xcolor}
\ifdefstring{\ELEGANT@color}{green}{
	\definecolor{main}{RGB}{0,120,2}%
	\definecolor{second}{RGB}{230,90,7}%
	\definecolor{third}{RGB}{0,160,152}%
}{\relax}

\ifdefstring{\ELEGANT@color}{cyan}{
	\definecolor{main}{RGB}{0,175,152}%
	\definecolor{second}{RGB}{239,126,30}%
	\definecolor{third}{RGB}{120,8,13}%
}{\relax}

\ifdefstring{\ELEGANT@color}{blue}{
	\definecolor{main}{RGB}{20,50,104}%
	\definecolor{second}{RGB}{180,50,131}%
	\definecolor{third}{RGB}{7,127,128}%
}{\relax}

%green color
\definecolor{main1}{RGB}{0,120,2}
\definecolor{second1}{RGB}{230,90,7}
\definecolor{third1}{RGB}{0,160,152}
%cyan color
\definecolor{main2}{RGB}{0,175,152}
\definecolor{second2}{RGB}{239,126,30}
\definecolor{third2}{RGB}{120,8,13}
%blue color
\definecolor{main3}{RGB}{20,50,104}
\definecolor{second3}{RGB}{180,50,131}
\definecolor{third3}{RGB}{7,127,128}


% corlor definition
\definecolor{winered}{rgb}{0.5,0,0}
\definecolor{bule}{RGB}{18,29,57}

\AtBeginDocument{
\input{base.tex}
}

\providecommand{\base}{
\begin{tikzpicture}[x=1pt,y=1pt,scale=0.2]
\triz{0}{0}
\ellz{128}
\intz{149}
\ellz{170}
\intz{191}
\ellz{212}
\triz{341}{180}
\end{tikzpicture}}
%\newcommand*{\base}{
%}

% ----- Title Style -----
\ifdefstring{\ELEGANT@titlestyle}{hang}{\def\style{hang}}{\relax}
\ifdefstring{\ELEGANT@titlestyle}{display}{\def\style{display}}{\relax}


\newtoks\email
\newtoks\version
\newtoks\institute
\newtoks\subtitle


\RequirePackage{enumerate}
% list/itemize/enumerate setting
\RequirePackage[shortlabels]{enumitem}
\setlist{nolistsep}


%%中文结构名字
\renewcommand{\contentsname}{目\hspace{2em}录}
\renewcommand{\figurename}{图}
\renewcommand{\tablename}{表}
\renewcommand{\partname}{部分}
\renewcommand{\listfigurename}{插图目录}
\renewcommand{\listtablename}{表格目录}
\renewcommand{\bibname}{参考文献}
\renewcommand{\appendixname}{附录}
\renewcommand{\indexname}{索\hspace{2em}引}

%% 常用宏包
\linespread{1.3}
\RequirePackage{microtype}
\RequirePackage{graphicx}
\RequirePackage{enumerate}
\RequirePackage{amsmath,mathrsfs,amsfonts}
\RequirePackage{booktabs}
\RequirePackage{multicol}
\RequirePackage{xcolor}
\RequirePackage{fancyvrb}
\RequirePackage{makecell,lipsum,texnames,setspace}
\RequirePackage{tikz}


\graphicspath{{./figure/}{./figures/}{./image/}{./images/}{./graphics/}{./graphic/}{./pictures/}{./picture/}}

\usetikzlibrary{backgrounds,calc}


\RequirePackage{natbib}
\setlength{\bibsep}{0.0pt}
\def\bibfont{\footnotesize}


%% 页面设置
\RequirePackage{geometry}
\geometry{
	a4paper,
	left=27mm,  %% or inner=23mm
	right=27mm, %% or outer=18mm
	top=25.4mm, bottom=25.4mm,
	headheight=2.17cm,
	headsep=4mm,
	footskip=12mm
}

\RequirePackage{hyperref}
\hypersetup{
	breaklinks,
	unicode,
	linktoc=all,
	bookmarksnumbered=true,
	bookmarksopen=true,
	pdfkeywords={ElegantBook},
	colorlinks,
	linkcolor=main,
	citecolor=winered,
	plainpages=false,
	pdfstartview=FitH,
	pdfborder={0 0 0},
	linktocpage
}


%%   章节设置
\RequirePackage[center,pagestyles]{titlesec}
\RequirePackage{apptools}
\RequirePackage[toc,page]{appendix}

\renewcommand{\chaptername}{第 \thechapter\;章}
\titleformat{\chapter}[\style]{\bfseries}
{\filcenter\LARGE\enspace\bfseries{\color{main}\IfAppendix{\appendixname}{\chaptername}\enspace}}{1pt}{\bfseries\color{main}\LARGE\filcenter}[\filcenter\base]


\titleformat{\section}[hang]{\bfseries}
{\hspace{-2.45em}\Large\bfseries{\color{main}\thesection}\enspace}{1pt}{\color{main}\Large\bfseries\filright}

\titleformat{\subsection}[hang]{\bfseries}
{\hspace{-2.45em}\large\bfseries\color{main}\thesubsection\enspace}{1pt}{\color{main}\large\bfseries\filright}

\titlespacing{\chapter}{0pt}{0pt}{1.5\baselineskip}
%\titlespacing{\subsection}{0pt}{0.5\baselineskip}{-\baselineskip}


% caption settings 
\RequirePackage{caption}
\captionsetup{labelfont = bf}
\RequirePackage[font=small,labelfont={bf}]{caption} 
\captionsetup[table]{skip=3pt}
\captionsetup[figure]{skip=3pt}
\newcommand\figref[1]{\textbf{Figure}~\ref{#1}}
\newcommand\tabref[1]{\textbf{Table}~\ref{#1}}


% list/itemize/enumerate setting
\RequirePackage[shortlabels]{enumitem}
\setlist{nolistsep}

\RequirePackage[most]{tcolorbox}

\tcbset{
    common/.style={
        fontupper=\itshape,
        lower separated=false,
        coltitle=white,
        colback=gray!10,
        fonttitle=\bfseries,
        enhanced,
        breakable,
        top=8pt,
        before skip=8pt,
        attach boxed title to top left={yshift=-0.11in,xshift=0.15in},
        boxed title style={boxrule=0pt,colframe=white,arc=0pt,outer arc=0pt},
        % separator sign={:},
    },
    defstyle/.style={
        common,
        colframe=main,  
        colbacktitle=main, 
        overlay unbroken and last={\node[anchor=south east, outer sep=6pt] at (\textwidth-width,0) {\textcolor{main}{$\clubsuit$}}; }
    },
    thmstyle/.style={
        common,
        colframe=second,  
        colbacktitle=second, 
        overlay unbroken and last={\node[anchor=south east, outer sep=6pt] at (\textwidth-width,0) {\textcolor{second}{$\heartsuit$}}; }
    },
    propstyle/.style={
        common,
        colframe=third,  
        colbacktitle=third, 
        overlay unbroken and last={\node[anchor=south east, outer sep=6pt] at (\textwidth-width,0) {\textcolor{third}{$\spadesuit$}}; }
    },
}

\newtcbtheorem[auto counter,number within=chapter]{definition}{定义}{defstyle}{def}
\newtcbtheorem[auto counter,number within=chapter]{theorem}{定理}{thmstyle}{thm}
\newtcbtheorem[auto counter,number within=chapter]{proposition}{命题}{propstyle}{pro}
\newtcbtheorem[auto counter,number within=chapter]{corollary}{推论}{thmstyle}{cor}
\newtcbtheorem[auto counter,number within=chapter]{lemma}{引理}{thmstyle}{lem}


%% Example with counter
\newcounter{exam}[chapter]
\setcounter{exam}{0}
\renewcommand{\theexam}{\thechapter.\arabic{exam}}
\newenvironment{example}[1][]{
 		\refstepcounter{exam}\par\medskip\noindent \textbf{\color{main}{示例}~\theexam #1:}\rmfamily %
 	}{
 		\par\medskip\ignorespacesafterend %
 	}

%% Exercise with counter
\newcounter{exer}[chapter]
\setcounter{exer}{0}
\renewcommand{\theexer}{\thechapter.\arabic{exer}}
\newenvironment{exercise}[1][]{
 		\refstepcounter{exer}\par\medskip\noindent \textbf{\color{main}{练习}~\theexer #1:}\rmfamily %
 	}{
 		\par\medskip\ignorespacesafterend %
 	}

%%define the note and proof environment
\RequirePackage{pifont,manfnt}
\newenvironment{note}{\par\noindent{\makebox[0pt][r]{\scriptsize\color{red!90}\textdbend\quad}\textbf{\color{main}{注意：}}}\itshape}{\par}
\newenvironment{proof}{\par\noindent\textbf{\color{main}{证明：}}\color{black!90}\small}{\hfill$\Box$\quad\par}

\newenvironment{remark}{\noindent\textbf{\color{main}{备注：}}}{\par}
\newenvironment{assumption}{\par\noindent\textbf{\color{main}{假设：}}}{\par}
\newenvironment{conclusion}{\par\noindent\textbf{\color{main}{结论：}}}{\par}
\newenvironment{solution}{\par\noindent\textbf{\color{main}{答案：}}}{\par}
\newenvironment{property}{\par\noindent\textbf{\color{main}{性质：}}}{\par}

%页眉页脚
\RequirePackage{fancyhdr}
\RequirePackage{lastpage}
\fancyhf{}
\fancyhead[EL,OR]{\color{main}--\thepage/\pageref{LastPage}--}
\fancyhead[ER]{\color{main}\em\nouppercase\leftmark{}}
\fancyhead[OL]{\color{main}\em\nouppercase\rightmark}
\fancyfoot[c]{\base}
\renewcommand{\headrule}{\color{main}\hrule width\textwidth}
\pagestyle{fancy}

\fancypagestyle{plain}{\renewcommand{\headrulewidth}{0pt}\fancyhf{}\renewcommand{\headrule}{}}
\renewcommand{\sectionmark}[1]{\markright{\thesection\; #1}{} }
\renewcommand{\chaptermark}[1]{\markboth{\chaptername \; #1\;}{}}

%%封面
\newcommand*{\equote}[1]{\def\@equote{#1}}

\newcommand*{\logo}[1]{
 \def\@logo{\includegraphics[width=0.3\textwidth]{#1}
 }
}
\newcommand*{\cover}[1]{
 \def\@logo{\includegraphics[width=\linewidth]{cover.jpg}
 }
}

\renewcommand*{\maketitle}{%
\begin{titlepage}
	\newpage
	\newgeometry{margin = 0in}
	\parindent=0pt
	\renewcommand\baselinestretch{2.5}
	\includegraphics[width=\linewidth]{cover.jpg}
	\setlength{\fboxsep}{0pt}
	\colorbox{second}{\makebox[\linewidth][c]{\shortstack[c]{\vspace{0.5in}}}}
	\vfill
	\hfill
	\begin{minipage}[c]{0.618\linewidth}
		{\bfseries\Huge \@title\\}
		{\bfseries\huge \the\subtitle\\[1ex]}
		\color{gray}\kaishu\normalsize
		{\renewcommand{\arraystretch}{0.618}
		\begin{tabular}{l} 
			作者：\@author \\ 
			版本：\the\version \\ 
			组织：\the\institute\\
			更新：\@date
		\end{tabular}}
	\end{minipage}
	\hspace{2em}
	\begin{minipage}[c]{0.26\linewidth}
	\begin{tikzpicture}[remember picture,overlay]
		\begin{pgfonlayer}{background}
		  \node[opacity=0.8,anchor=south east,outer sep=0pt,inner sep=0pt] at ($(current page.south east) +(-0.8in,1.5in)$) {\includegraphics[width=0.7\textwidth]{logo.png}};
		\end{pgfonlayer}
	\end{tikzpicture}
	\end{minipage}
	\vfill
	\centerline{\itshape \@equote}
	\vfill
	\restoregeometry
\end{titlepage}}