% LaTeX definitions for SBC 2001 style
%
% Created by Jomi & Rafael, june 2001

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{sbc2001}[2001/06/09]

% margem sup 3.5 cm: há 1,5 cm para header, + 2 cm para top
% margem inf 2.5 cm: há 1,5 cm para foot, + 1 cm para bottom
% margem esq/dir 3 cm
\RequirePackage[a4paper,top=3.5cm,left=2cm,right=2.5cm,bottom=2.5cm]{geometry}


\parindent 1.27cm
\parskip   6pt

\flushbottom

% captions
\RequirePackage[bf,sf,footnotesize,hang]{caption}
\setlength{\captionmargin}{0.8cm}
\renewcommand{\captionfont}{\sffamily\footnotesize\bfseries}

% font
\RequirePackage{times}

%\renewcommand{\normalsize}{\@setfontsize\normalsize\@xiipt\@xivpt}
\newcommand{\XIIIPT}{\@setfontsize\xiiipt{13}{17}}
\newcommand{\XIVPT}{\@setfontsize\xivpt{16}{20}}
\newcommand{\XVIPT}{\@setfontsize\xvipt{16}{20}}
\newcommand{\XVIIIPT}{\@setfontsize\xviiipt{18}{22}}
\newcommand{\XXPT}{\@setfontsize\xxpt{20}{24}}
\newcommand{\XLVIIIPT}{\@setfontsize\xlviiipt{48}{56}}

% new commands
\newcounter{instn}
\setcounter{instn}{1}
\newcommand{\instnum}{\arabic{instn}}
\newcommand{\inst}[1]{\ensuremath{^#1}}
\newcommand{\nextinstitute}{\\\mbox{}\\[-6pt] \addtocounter{instn}{1}\inst{\instnum}}
\newcommand{\email}[1]{\\\mbox{}\\[-6pt]\footnotesize\texttt{#1}}
\renewcommand{\and}{, }

% to avoid [...] in the bibliography
% \item[] instead of \item[\@biblabel{#1}\hfill]
\def\@lbibitem[#1]#2{\item[]\if@filesw
      {\let\protect\noexpand
       \immediate
       \write\@auxout{\string\bibcite{#2}{#1}}}\fi\ignorespaces}
\renewenvironment{thebibliography}[1]
     {\section*{\refname
        \@mkboth{\MakeUppercase\refname}{\MakeUppercase\refname}}%
      \list{\@biblabel{\@arabic\c@enumiv}}%
           {\settowidth\labelwidth{\@biblabel{#1}}%
            \leftmargin\labelwidth
            \advance\leftmargin\labelsep
            %% changed!
               \itemindent -\leftmargin
               \itemsep 6pt
            %%%%%%%%%%%
            \@openbib@code
            \usecounter{enumiv}%
            \let\p@enumiv\@empty
            \renewcommand\theenumiv{\@arabic\c@enumiv}}%
      \sloppy
      \clubpenalty4000
      \@clubpenalty \clubpenalty
      \widowpenalty4000%
      \sfcode`\.\@m}
     {\def\@noitemerr
       {\@latex@warning{Empty `thebibliography' environment}}%
      \endlist}


% itens
\setlength\leftmargini   {1.27cm}
\setlength\leftmargin    {\leftmargini}
\setlength\leftmarginii  {\leftmargini}
\setlength\leftmarginiii {\leftmargini}
\setlength\leftmarginiv  {\leftmargini}
\setlength  \labelsep    {.5em}
\setlength  \labelwidth  {\leftmargini}
\addtolength\labelwidth  {-\labelsep}
\def\@listI{\leftmargin\leftmargini
            \parsep 0\p@ \@plus1\p@ \@minus\p@
            \topsep 0\p@ \@plus2\p@ \@minus4\p@
            \itemsep0\p@}
\let\@listi\@listI
\@listi
\def\@listii {\leftmargin\leftmarginii
              \labelwidth\leftmarginii
              \advance\labelwidth-\labelsep
              \topsep    0\p@ \@plus2\p@ \@minus\p@}
\def\@listiii{\leftmargin\leftmarginiii
              \labelwidth\leftmarginiii
              \advance\labelwidth-\labelsep
              \topsep    0\p@ \@plus\p@\@minus\p@
              \parsep    \z@
              \partopsep \p@ \@plus\z@ \@minus\p@}


% sections
\renewcommand\section{\@startsection{section}{1}{\z@}%
                       {-18\p@ \@plus -4\p@ \@minus -4\p@}%
                       {1\p@ \@plus 4\p@ \@minus 4\p@}%
                       {\normalfont\XIIIPT\bfseries\boldmath
                        \rightskip=\z@ \@plus 8em\pretolerance=10000 }}

\renewcommand\subsection{\@startsection{subsection}{2}{\z@}%
                       {-6\p@ \@plus -4\p@ \@minus -4\p@}%
                       {1\p@ \@plus 4\p@ \@minus 4\p@}%
                       {\normalfont\normalsize\bfseries\boldmath
                        \rightskip=\z@ \@plus 8em\pretolerance=10000 }}

\RequirePackage{titlesec}
\titlelabel{\thetitle.\hspace{1ex}}


%% CAPITULO

\renewcommand{\chapter}{%
   \newpage%
   \thispagestyle{empty}%
   \secdef\chapternumbered\chapterstarred}

\newcommand{\chapternumbered}[2][?]{%
   \refstepcounter{chapter}%
   \addcontentsline{toc}{chapter}{\chaptername~\thechapter---#1}%
   {\noindent\XVIIIPT\bfseries{\chaptername}}\vskip 1mm
   {\noindent\XLVIIIPT\bfseries{\thechapter}}\\
   \vskip 12pt%
   {\noindent\XXPT\bfseries{#1}}%
   \chaptermark{#1}%
   %\vskip 1.5\baselineskip%
}

% first page

\pagestyle{empty}

\newcommand{\authortag}[1]{$^{#1}$}

\def\address#1{\gdef\@address{#1}}

\def\@maketitle{\newpage
 %\null % isso dava um espaco extra antes do title
 \begin{center}
   %\vglue -6pt
   \vspace*{12pt}
  {\XVIPT\bf\@title\par}
   \vglue 6pt plus 3pt minus 3pt
  {\normalsize
   \textbf{\begin{tabular}[t]{c}\@author\end{tabular}}\par}
   \vglue 6pt plus 3pt minus 3pt
  {\normalsize
   \begin{tabular}[t]{c}\inst{\instnum}\@address\end{tabular}\par}
   \vglue 6pt plus 3pt minus 3pt
   \end{center}\par
}
\let\maketitleOLD\maketitle
\renewcommand{\maketitle}{\maketitleOLD\thispagestyle{empty}}

%\newenvironment{abstract}{%
%      \list{}{%\advance\topsep by0.35cm\relax%\small
%      \leftmargin=0.8cm
%      \labelwidth=\z@
%      \listparindent=\z@
%      \itemindent\listparindent
%      \rightmargin\leftmargin}\item[\hskip\labelsep
%                                    \bfseries\itshape Abstract.]\itshape}%
%      {\endlist}

\newenvironment{abstract}{%
        \itshape
        \vskip 60pt
        \centerline{{\bfseries Abstract}}%
        \vskip 6pt\noindent}%
      {\normalfont\vskip 6pt}

%\newenvironment{resumo}{%
%      \list{}{%\advance\topsep by0.35cm\relax%\small
%      \leftmargin=0.8cm
%      \labelwidth=\z@
%      \listparindent=\z@
%      \itemindent\listparindent
%      \rightmargin\leftmargin}\item[\hskip\labelsep
%                                    \bfseries\itshape Resumo.]\itshape}%
%      {\endlist}

\newenvironment{resumo}{%
        \itshape
        \vskip 6pt
        \centerline{{\bfseries Resumo}}%
        \vskip 6pt\noindent}%
      {\normalfont\vskip 6pt}

\newenvironment{authorse}{%
        \vskip 36pt
        \XIVPT\noindent}%
      {\normalfont}

\newenvironment{addresse}{%
        \vskip 6pt
        \noindent}%
      {\normalfont}

\renewcommand{\author}[1]{\begin{authorse}#1\end{authorse}}
\renewcommand{\address}[1]{\begin{addresse}%
                          \setcounter{instn}{0}%
                          \nextinstitute #1%
                          \end{addresse}}