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%%
%%
%% This is file `ticket.sty',
%%
%% File: ticket.sty Copyright (c) 1999,2000, Thomas Emmel
%% <emmel@mechanik.tu-darmstadt.de>
%%
%%
% This package may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either version 1.2
% of this license or (at your option) any later version.
% The latest version of this license is in
%   http://www.latex-project.org/lppl.txt
% and version 1.2 or later is part of all distributions of LaTeX 
% version 1999/12/01 or later.
%
% This package consists of the file ticket.sty 
%%
% HISTORY:
%
%  v0.1a-0.1d non-official implementations 
%
%  v0.2       fixing some minor bugs and add examples
%
%  v0.3a      checking for an old calc-package
%  v0.3b      use internal values if tdf-file is not specified
%  v0.3c      \ticketreset added.

\def\fileversion{v0.3c}
\def\filedate{2000/10/10}

\ProvidesPackage{ticket}[\filedate\space\fileversion]
\typeout{Package: `ticket' \fileversion\space <\filedate> (Thomas Emmel)}

\newif\if@crossmark    \@crossmarkfalse
\newif\if@circlemark   \@circlemarkfalse
\newif\if@boxed        \@boxedfalse
\newif\if@extern       \@externfalse

\DeclareOption{boxed}{\@boxedtrue}
\DeclareOption{crossmark}{\@crossmarktrue}
\DeclareOption{circlemark}{\@circlemarktrue}

\DeclareOption*{\edef\ticketToUse{\CurrentOption.tdf}\@externtrue}%

\ProcessOptions
%
\RequirePackage{ifthen}
\RequirePackage{calc}
% older calc packages have a small bug
\@ifpackagelater{calc}{1998/07/06}%
      {% Yes. OK! 
       }
      {% No. 
        \PackageWarning{ticket}
        {Package calc too old (older than v4.1b).}%
        }%

\pagestyle{empty}

% standard definitions
\topmargin=0pt
\headheight=0pt
\headsep=0pt
\oddsidemargin=0pt
\footskip=0pt
\voffset=0pt
\hoffset=0pt
\unitlength=1mm

%
\newcounter{ticket@x}
\newcounter{ticket@y}
\setcounter{ticket@x}{1}
\setcounter{ticket@y}{1}

\newcounter{ticket@num@X}% Number of tickets in horizontal direction
\newcounter{ticket@num@Y}% Number of tickets in vertical direction
\setcounter{ticket@num@X}{2}% default value
\setcounter{ticket@num@Y}{3}% default value

\def\ticketNumbers#1#2{\setcounter{ticket@num@X}{#1}%
                       \setcounter{ticket@num@Y}{#2}}

%

\newdimen\ticketWidth% width of a ticket
\newdimen\ticketHeight% height of a ticket

\newdimen\ticket@dis@X% horizontal space between tickets
\newdimen\ticket@dis@Y% vertical space between tickets
\ticket@dis@X=0mm% default value
\ticket@dis@Y=0mm% default value

\def\ticketSize#1#2{\gdef\ticket@size@X{#1}\ticketWidth=#1\unitlength%
                    \gdef\ticket@size@Y{#2}\ticketHeight=#2\unitlength}

\def\ticketDistance#1#2{\ticket@dis@X=#1\unitlength%
                        \ticket@dis@Y=#2\unitlength}

%% now load ticket definitions from file
\if@extern
\InputIfFileExists{\ticketToUse}
  {\typeout{load \ticketToUse}}
  {\errmessage{\ticketToUse\space not found! Please use another file}}
\else
  \unitlength=1mm
  \hoffset=0mm
  \voffset=0mm
  \ticketNumbers{2}{2}
  \ticketSize{50}{20} 
  \ticketDistance{5}{10}
\fi

%% temporary length
\newdimen\ticket@shift@x
\newdimen\ticket@shift@y

\def\ticketreset{\setcounter{ticket@x}{1}\setcounter{ticket@y}{1}%
 \setlength{\ticket@shift@y}{0pt}%
 \setlength{\ticket@shift@x}{0pt}}

% the heart: a "counter"
\newcommand{\ticket@counter}{%
  \ifthenelse{\value{ticket@y}<\value{ticket@num@Y}}%
    {\stepcounter{ticket@y}\\[-\baselineskip]}%
    {\setcounter{ticket@y}{1}%
      \ifthenelse{\value{ticket@x}<\value{ticket@num@X}}%
        {\stepcounter{ticket@x}\\[-\baselineskip]}%
        {\setcounter{ticket@x}{1}\setcounter{ticket@y}{1}\newpage}}%
      \setlength{\ticket@shift@y}{(\ticketHeight+\ticket@dis@Y)*(\theticket@y-1)}%
      \setlength{\ticket@shift@x}{(\ticketWidth+\ticket@dis@X)*(\theticket@x-1)}%
      }%

% default content...
% users should renew this command
\newcommand{\ticketdefault}{%
%
\put( 5, 5){Ticket....}
} 

% the main command: \ticket 
% users should define a command like \myticket to get more than one parameter
\newcommand{\ticket}[1]{%
% position global
\raisebox{-\ticket@shift@y}[0mm][0mm]{%
\raisebox{-\ticketHeight}[0mm][0mm]{%
\hspace*{\ticket@shift@x}%
%
% open a picture of zero size and place some crosses
\begin{picture}(0,0)%
\if@crossmark
  \put(0,0){\ticket@cross}%
  \put(0,\ticket@size@Y){\ticket@cross}%
  \put(\ticket@size@X,0){\ticket@cross}%
  \put(\ticket@size@X,\ticket@size@Y){\ticket@cross}%
\fi
\if@circlemark
  \put(0,0){\circle{1}}%
  \put(0,\ticket@size@Y){\circle{1}}%
  \put(\ticket@size@X,0){\circle{1}}%
  \put(\ticket@size@X,\ticket@size@Y){\circle{1}}%
\fi
\if@boxed
  \put(0,0){\line(1,0){\ticket@size@X}}
  \put(0,0){\line(0,1){\ticket@size@Y}}
  \put(\ticket@size@X,\ticket@size@Y){\line(-1,0){\ticket@size@X}}
  \put(\ticket@size@X,\ticket@size@Y){\line(0,-1){\ticket@size@Y}}
\fi
% put the default content into the ticket
\ticketdefault%
% put the variable content into the ticket
#1%
\end{picture}}}\ticket@counter}

\def\ticket@cross{%
  \begin{picture}(0,0)%
    \put(-1,0){\line(1,0){2}}\put(0,-1){\line(0,1){2}}%
    \end{picture}}




\endinput