%
% $Id: exafoils.cls 631 2012-01-21 18:35:47Z herbert $
%
%%
%% Praesentationen, 1st edition
%%
%% Prasentationen mit LaTeX
%%
%% Copyright (C) 2009 Voss
%%
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%%
%% See http://www.latex-project.org/lppl.txt for details.
%%
%
\RequirePackage{DEoptions}
\DeclareOption*{\PassOptionsToClass{\CurrentOption}{foils}}
\ProcessOptions\relax
\LoadClass{foils}
\RequirePackage[T1]{fontenc}
\input{exa-fontconfig}
\let\StartShownPreambleCommands\relax
\let\StopShownPreambleCommands\relax

% ignore second documentclass command for display in book:

\renewcommand\documentclass[2][]{}

\endinput

\AtBeginDocument{
\ifx\selectcolormodel\@undefined
\else
  \selectcolormodel{cmyk}
\fi


\special{ps:
    /setcmykcolor { exch 0.11 mul add
                    exch 0.59 mul add
                    exch 0.3 mul add
                    dup 1 gt { pop 1 }  if neg 1 add setgray } def
    /setrgbcolor { 0.11 mul
                   exch 0.59 mul add
                   exch 0.3 mul add setgray } def
    /sethsbcolor { /b exch def /s exch def 6 mul dup cvi dup /i exch def sub /f exch def
                   /F [[0 1 f sub 1][f 0 1][1 0 1 f sub][1 f 0][1 f sub 1 0][0 1 f][0 1 1]] def
                   F i get { s mul neg 1 add b mul} forall
                   0.11 mul
                   exch 0.59 mul add
                   exch 0.3 mul add setgray } def
  }
}

\endinput

