\makeatletter

% --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
%
% 参照
% 
\newcommand{\Fig}[1]{Fig\,\ref{fig_#1}}
\newcommand{\Table}[1]{Table\,\ref{table_#1}}
\newcommand{\式}[1]{式(\ref{eqn:#1})}
\newcommand{\節}[1]{第\ref{sec_#1}節}
\newcommand{\章}[1]{第\ref{chap_#1}章}

% --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
%
% 図
% 
\newif\ifnoeps
\newenvironment{fig}{\begin{figure}[h]\begin{center}}{\end{center}\end{figure}}
\newcommand{\labelcap}[2]{\caption{#2}\label{fig_#1}}
\newcommand{\epsopt}[2]{\ifnoeps \else \includegraphics[#2]{fig/#1.eps} \fi}
\newcommand{\epscapopt}[3]{\epsopt{#1}{#3}\labelcap{#1}{#2}}
\newcommand{\epscap}[2]{\epscapopt{#1}{#2}{width=0.6\hsize,clip}}
\newcommand{\eps}[1]{\epsopt{#1}{width=0.6\hsize,clip}}


% --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
%
% 色
% 

\definecolor{lightgray}{gray}{0.9}
\definecolor{verylightgray}{gray}{0.95}


% --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
%
% 文書スタイル
% 

\newenvironment{chapterabstract}{%
\gtfamily
}{%
\vskip 0.5\baselineskip
}

% --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
%
% 解説付き関数リファレンス
% 

\newenvironment{reference}[1]{%
\def\FrameCommand{\textcolor{lightgray}{\vrule width 0.5zw} \hspace{5pt}}% 
\MakeFramed {\advance\hsize-\width \FrameRestore}
{\parindent=0truept{\ttfamily\bfseries #1}\sffamily クラス}
\hrule height0.75pt
\begin{description}
}{%
\end{description}
\endMakeFramed
}

\newcommand{\classmember}[1]{%
\item[\ttfamily #1] ~

}

\newcommand{\Plus}{\vspace{-0.4\baselineskip}\nopagebreak}

\newcommand{\referencetitle}{}

% \newcommand{\referencetitle}{%
% {\parindent=0truept%
% \begin{picture}(0,0)
%   \put(0,0){\color[gray]{0.4}\rule[-0.31zw]{\linewidth}{1.4zw}}
% \end{picture}%
% {\color{white}\sffamily\bfseries Reference}}
% }

% --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
%
% 関数リファレンス一覧
% 

\newenvironment{lightreference}[1]{%
\def\FrameCommand{\textcolor{lightgray}{\vrule width 0.5zw} \hspace{0pt}}% 
\MakeFramed {\advance\hsize-\width \FrameRestore}
\begin{tabular}{lll}
\multicolumn{3}{l}{\texttt{#1}} \\ \midrule
}{
\end{tabular}
\endMakeFramed
}

\newcommand{\member}[2]{\multicolumn{2}{l}{\texttt{#1}} & #2 \\}


% --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
%
% ソースコード
% 

\newenvironment{sourcecode}{%
\VerbatimEnvironment
\def\FrameCommand{\hspace{2zw} \fcolorbox{lightgray}{lightgray}}%
\MakeFramed {\advance\hsize-\width \FrameRestore}
\small
\baselineskip = 0.9\baselineskip
\begin{Verbatim}
}{
\end{Verbatim}
\small
\baselineskip = 0.9\baselineskip
\endMakeFramed
}


% --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
%
% tips
% 

\newenvironment{tips}{
\begin{center}
\begin{Sbox}
\begin{minipage}{0.8\hsize} {\bfseries tips} \vskip 0.3\baselineskip \gtfamily \footnotesize %
}{%
\end{minipage}
\end{Sbox}
\fcolorbox{lightgray}{lightgray}
\TheSbox
\end{center}
}

\makeatother