% Package: SFheaders.sty
% Sans-Serif headers; modified from {book|report|article}.cls defaults.
% Last modified: MLO 1997-05-06
%
% Author: Maurizio Loreti, aka MLO or (HAM) I3NOO
% Work:   University of Padova - Department of Physics
%         Via F. Marzolo, 8 - 35131 PADOVA - Italy
% EMail:  loreti@padova.infn.it
% WWW:    http://wwwcdf.pd.infn.it/~loreti/mlo.html

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{sfheaders}[1997/05/06 Sans-Serif headers]

\@ifclassloaded{article}{
% Here if \documentclass{article}
  \def\@part[#1]#2{%
      \ifnum \c@secnumdepth >\m@ne
        \refstepcounter{part}%
        \addcontentsline{toc}{part}{\thepart\hspace{1em}#1}%
      \else
        \addcontentsline{toc}{part}{#1}%
      \fi
      {\parindent \z@ \raggedright
       \interlinepenalty \@M
       \normalfont
       \ifnum \c@secnumdepth >\m@ne
         \Large \sffamily \bfseries \partname~\thepart
         \par\nobreak
       \fi
       \huge \sffamily \bfseries #2%
       \markboth{}{}\par}%
      \nobreak
      \vskip 3ex
      \@afterheading}
  \def\@spart#1{%
      {\parindent \z@ \raggedright
       \interlinepenalty \@M
       \normalfont
       \huge \sffamily \bfseries #1\par}%
       \nobreak
       \vskip 3ex
       \@afterheading}}
{\@ifclassloaded{book}{
% Here if \documentclass{book}
  \def\@part[#1]#2{%
      \ifnum \c@secnumdepth >-2\relax
        \refstepcounter{part}%
        \addcontentsline{toc}{part}{\thepart\hspace{1em}#1}%
      \else
        \addcontentsline{toc}{part}{#1}%
      \fi
      \markboth{}{}%
      {\centering
       \interlinepenalty \@M
       \normalfont
       \ifnum \c@secnumdepth >-2\relax
         \huge \sffamily \bfseries \partname~\thepart
         \par
         \vskip 20\p@
       \fi
       \Huge \sffamily \bfseries #2\par}%
      \@endpart}

  \def\@spart#1{%
      {\centering
       \interlinepenalty \@M
       \normalfont
       \Huge \sffamily \bfseries #1\par}%
      \@endpart}

  \def\@makechapterhead#1{%
    \vspace*{50\p@}%
    {\parindent \z@ \raggedright \normalfont
      \ifnum \c@secnumdepth >\m@ne
        \if@mainmatter
          \huge \sffamily \bfseries \@chapapp\space \thechapter
          \par\nobreak
%--deleted:          \vskip 20\p@
        \fi
      \fi
      \interlinepenalty\@M
      \Huge \sffamily\bfseries #1\par\nobreak
      \vskip 40\p@
    }}

  \def\@makeschapterhead#1{%
    \vspace*{50\p@}%
    {\parindent \z@ \raggedright
      \normalfont
      \interlinepenalty\@M
      \Huge \sffamily \bfseries #1\par\nobreak
      \vskip 40\p@
  }}
}{
% Here if none of the above (\documentclass{report} ?)
  \def\@part[#1]#2{%
      \ifnum \c@secnumdepth >-2\relax
        \refstepcounter{part}%
        \addcontentsline{toc}{part}{\thepart\hspace{1em}#1}%
      \else
        \addcontentsline{toc}{part}{#1}%
      \fi
      \markboth{}{}%
      {\centering
       \interlinepenalty \@M
       \normalfont
       \ifnum \c@secnumdepth >-2\relax
         \huge \sffamily \bfseries \partname~\thepart
         \par
         \vskip 20\p@
       \fi
       \Huge \sffamily \bfseries #2\par}%
      \@endpart}

  \def\@spart#1{%
      {\centering
       \interlinepenalty \@M
       \normalfont
       \Huge \sffamily \bfseries #1\par}%
      \@endpart}

  \def\@makechapterhead#1{%
    \vspace*{50\p@}%
    {\parindent \z@ \raggedright \normalfont
      \ifnum \c@secnumdepth >\m@ne
          \huge \sffamily \bfseries \@chapapp\space \thechapter
          \par\nobreak
          \vskip 20\p@
      \fi
      \interlinepenalty\@M
      \Huge \sffamily \bfseries #1\par\nobreak
      \vskip 40\p@
    }}

  \def\@makeschapterhead#1{%
    \vspace*{50\p@}%
    {\parindent \z@ \raggedright
      \normalfont
      \interlinepenalty\@M
      \Huge \sffamily \bfseries #1\par\nobreak
      \vskip 40\p@
    }}
}}

\renewcommand{\section}{\@startsection {section}{1}{\z@}%
             {-3.5ex \@plus -1ex \@minus -.2ex}%
             {2.3ex \@plus.2ex}%
             {\normalfont\Large\sffamily\bfseries}}

\renewcommand{\subsection}{\@startsection{subsection}{2}{\z@}%
             {-3.25ex\@plus -1ex \@minus -.2ex}%
             {1.5ex \@plus .2ex}%
             {\normalfont\large\sffamily\bfseries}}

\renewcommand{\subsubsection}{\@startsection{subsubsection}{3}{\z@}%
             {-3.25ex\@plus -1ex \@minus -.2ex}%
             {1.5ex \@plus .2ex}%
             {\normalfont\normalsize\sffamily\bfseries}}

\renewcommand{\paragraph}{\@startsection{paragraph}{4}{\z@}%
             {3.25ex \@plus1ex \@minus.2ex}%
             {-1em}%
             {normalfont\normalsize\sffamily\bfseries}}

\renewcommand{\subparagraph}{\@startsection{subparagraph}{5}{\parindent}%
             {3.25ex \@plus1ex \@minus .2ex}%
             {-1em}%
             {\normalfont\normalsize\sffamily\bfseries}}
\endinput

%%
%% End of `SFheaders.sty'.
