%%
%% This is file `pagegrid.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% pagegrid.dtx  (with options: `package')
%% 
%% This is a generated file.
%% 
%% Copyright (C) 2009 by Heiko Oberdiek <oberdiek@uni-freiburg.de>
%% 
%% This work 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. The latest version of this license is in
%%    http://www.latex-project.org/lppl.txt
%% and version 1.3 or later is part of all distributions of
%% LaTeX version 2005/12/01 or later.
%% 
%% This work has the LPPL maintenance status "maintained".
%% 
%% This Current Maintainer of this work is Heiko Oberdiek.
%% 
%% This work consists of the main source file pagegrid.dtx
%% and the derived files
%%    pagegrid.sty, pagegrid.pdf, pagegrid.ins, pagegrid.drv,
%%    pagegrid-test1.tex.
%% 
\begingroup
  \catcode44 12 % ,
  \catcode45 12 % -
  \catcode46 12 % .
  \catcode58 12 % :
  \catcode64 11 % @
  \catcode123 1 % {
  \catcode125 2 % }
  \expandafter\let\expandafter\x\csname ver@pagegrid.sty\endcsname
  \ifx\x\relax % plain-TeX, first loading
  \else
    \def\empty{}%
    \ifx\x\empty % LaTeX, first loading,
      % variable is initialized, but \ProvidesPackage not yet seen
    \else
      \catcode35 6 % #
      \expandafter\ifx\csname PackageInfo\endcsname\relax
        \def\x#1#2{%
          \immediate\write-1{Package #1 Info: #2.}%
        }%
      \else
        \def\x#1#2{\PackageInfo{#1}{#2, stopped}}%
      \fi
      \x{pagegrid}{The package is already loaded}%
      \aftergroup\endinput
    \fi
  \fi
\endgroup
\begingroup
  \catcode35 6 % #
  \catcode40 12 % (
  \catcode41 12 % )
  \catcode44 12 % ,
  \catcode45 12 % -
  \catcode46 12 % .
  \catcode47 12 % /
  \catcode58 12 % :
  \catcode64 11 % @
  \catcode91 12 % [
  \catcode93 12 % ]
  \catcode123 1 % {
  \catcode125 2 % }
  \expandafter\ifx\csname ProvidesPackage\endcsname\relax
    \def\x#1#2#3[#4]{\endgroup
      \immediate\write-1{Package: #3 #4}%
      \xdef#1{#4}%
    }%
  \else
    \def\x#1#2[#3]{\endgroup
      #2[{#3}]%
      \ifx#1\@undefined
        \xdef#1{#3}%
      \fi
      \ifx#1\relax
        \xdef#1{#3}%
      \fi
    }%
  \fi
\expandafter\x\csname ver@pagegrid.sty\endcsname
\ProvidesPackage{pagegrid}%
  [2009/12/04 v1.4 Print page grid in background (HO)]
\begingroup
  \catcode123 1 % {
  \catcode125 2 % }
  \def\x{\endgroup
    \expandafter\edef\csname pagegrid@AtEnd\endcsname{%
      \catcode35 \the\catcode35\relax
      \catcode64 \the\catcode64\relax
      \catcode123 \the\catcode123\relax
      \catcode125 \the\catcode125\relax
    }%
  }%
\x
\catcode35 6 % #
\catcode64 11 % @
\catcode123 1 % {
\catcode125 2 % }
\def\TMP@EnsureCode#1#2{%
  \edef\pagegrid@AtEnd{%
    \pagegrid@AtEnd
    \catcode#1 \the\catcode#1\relax
  }%
  \catcode#1 #2\relax
}
\TMP@EnsureCode{9}{10}% (tab)
\TMP@EnsureCode{10}{12}% ^^J
\TMP@EnsureCode{33}{12}% !
\TMP@EnsureCode{34}{12}% "
\TMP@EnsureCode{36}{3}% $
\TMP@EnsureCode{38}{4}% &
\TMP@EnsureCode{39}{12}% '
\TMP@EnsureCode{40}{12}% (
\TMP@EnsureCode{41}{12}% )
\TMP@EnsureCode{42}{12}% *
\TMP@EnsureCode{43}{12}% +
\TMP@EnsureCode{44}{12}% ,
\TMP@EnsureCode{45}{12}% -
\TMP@EnsureCode{46}{12}% .
\TMP@EnsureCode{47}{12}% /
\TMP@EnsureCode{58}{12}% :
\TMP@EnsureCode{59}{12}% ;
\TMP@EnsureCode{60}{12}% <
\TMP@EnsureCode{61}{12}% =
\TMP@EnsureCode{62}{12}% >
\TMP@EnsureCode{63}{12}% ?
\TMP@EnsureCode{91}{12}% [
\TMP@EnsureCode{93}{12}% ]
\TMP@EnsureCode{94}{7}% ^ (superscript)
\TMP@EnsureCode{96}{12}% `
\TMP@EnsureCode{124}{12}% |
\RequirePackage{tikz}
\RequirePackage{atbegshi}[2009/12/02]
\RequirePackage{kvoptions}[2009/07/17]
\begingroup\expandafter\expandafter\expandafter\endgroup
\expandafter\ifx\csname stockwidth\endcsname\relax
  \def\pagegrid@width{\paperwidth}%
  \def\pagegrid@height{\paperheight}%
\else
  \def\pagegrid@width{\stockwidth}%
  \def\pagegrid@height{\stockheight}%
\fi
\SetupKeyvalOptions{%
  family=pagegrid,%
  prefix=pagegrid@,%
}
\def\pagegrid@init{%
  \let\pagegrid@origin@a\@empty
  \let\pagegrid@origin@b\@empty
  \let\pagegrid@init\relax
}
\let\pagegrid@@init\pagegrid@init
\def\pagegrid@origin@a{bl}
\def\pagegrid@origin@b{tr}
\def\pagegrid@SetOrigin#1{%
  \pagegrid@init
  \ifx\pagegrid@origin@a\@empty
    \def\pagegrid@origin@a{#1}%
  \else
    \ifx\pagegrid@origin@b\@empty
    \else
      \let\pagegrid@origin@a\pagegrid@origin@b
    \fi
    \def\pagegrid@origin@b{#1}%
  \fi
}
\def\pagegrid@temp#1{%
  \DeclareVoidOption{#1}{\pagegrid@SetOrigin{#1}}%
  \@namedef{pagegrid@N@#1}{#1}%
}
\pagegrid@temp{bl}
\pagegrid@temp{br}
\pagegrid@temp{tl}
\pagegrid@temp{tr}
\def\pagegrid@temp#1#2{%
  \DeclareVoidOption{#2}{\pagegrid@SetOrigin{#1}}%
}%
\pagegrid@temp{bl}{lb}
\pagegrid@temp{br}{rb}
\pagegrid@temp{tl}{lt}
\pagegrid@temp{tr}{rt}
\pagegrid@temp{bl}{bottom-left}
\pagegrid@temp{br}{bottom-right}
\pagegrid@temp{tl}{top-left}
\pagegrid@temp{tr}{top-right}
\pagegrid@temp{bl}{left-bottom}
\pagegrid@temp{br}{right-bottom}
\pagegrid@temp{tl}{left-top}
\pagegrid@temp{tr}{right-top}
\DeclareBoolOption[true]{enable}
\DeclareComplementaryOption{disable}{enable}
\DeclareBoolOption{foreground}
\newlength{\pagegrid@step}
\define@key{pagegrid}{step}{%
  \setlength{\pagegrid@step}{#1}%
}
\DeclareStringOption[red]{firstcolor}
\DeclareStringOption[blue]{secondcolor}
\DeclareBoolOption[true]{arrows}
\newlength\pagegrid@arrowlength
\pagegrid@arrowlength=\z@
\define@key{pagegrid}{arrowlength}{%
  \setlength{\pagegrid@arrowlength}{#1}%
}
\define@key{pagegrid}{double}[true]{%
  \@ifundefined{pagegrid@double@#1}{%
    \PackageWarning{pagegrid}{%
      Unsupported value `#1' for option `double'.\MessageBreak
      Known values are:\MessageBreak
      `false', `first', `last', `true'.\MessageBreak
      Now `false' is used%
    }%
    \chardef\pagegrid@double\z@
  }{%
    \chardef\pagegrid@double\csname pagegrid@double@#1\endcsname\relax
  }%
}
\@namedef{pagegrid@double@false}{0}
\@namedef{pagegrid@double@first}{1}
\@namedef{pagegrid@double@last}{2}
\@namedef{pagegrid@double@true}{2}
\chardef\pagegrid@double\z@
\newcommand*{\pagegridsetup}{%
  \let\pagegrid@init\pagegrid@@init
  \setkeys{pagegrid}%
}
\pagegridsetup{%
  step=1mm%
}
\InputIfFileExists{pagegrid.cfg}{}%
\ProcessKeyvalOptions*\relax
\AtBeginDocument{%
  \ifdim\pagegrid@arrowlength>\z@
  \else
    \pagegrid@arrowlength=10\pagegrid@step
  \fi
}
\def\pagegridShipoutDoubleBegin{%
  \begingroup
  \let\newlabel\@gobbletwo
  \let\zref@newlabel\@gobbletwo
  \let\@writefile\@gobbletwo
  \let\select@language\@gobble
}
\def\pagegridShipoutDoubleEnd{%
  \endgroup
}
\def\pagegrid@WriteDouble#1#2{%
  \immediate\write#1{%
    \@backslashchar csname %
    pagegridShipoutDouble#2%
    \@backslashchar endcsname%
  }%
}
\def\pagegrid@ShipoutDouble#1{%
  \begingroup
    \if@filesw
      \pagegrid@WriteDouble\@mainaux{Begin}%
      \ifx\@auxout\@partaux
        \pagegrid@WriteDouble\@partaux{Begin}%
        \def\pagegrid@temp{%
          \pagegrid@WriteDouble\@mainaux{End}%
          \pagegrid@WriteDouble\@partaux{End}%
        }%
      \else
        \def\pagegrid@temp{%
          \pagegrid@WriteDouble\@mainaux{End}%
        }%
      \fi
    \else
      \def\pagegrid@temp{}%
    \fi
    \let\protect\noexpand
    \AtBeginShipoutOriginalShipout\copy#1\relax
    \pagegrid@temp
  \endgroup
}
\AtBeginShipout{%
  \ifdim\pagegrid@step>\z@
  \else
    \pagegrid@enablefalse
  \fi
  \ifpagegrid@enable
    \ifnum\pagegrid@double=\@ne
      \pagegrid@ShipoutDouble\AtBeginShipoutBox
    \else
      \ifnum\pagegrid@double=\tw@
        \@ifundefined{pagegrid@DoubleBox}{%
          \newbox\pagegrid@DoubleBox
        }{}%
        \setbox\pagegrid@DoubleBox=\copy\AtBeginShipoutBox
      \fi
    \fi
    \ifpagegrid@foreground
      \expandafter\AtBeginShipoutUpperLeftForeground
    \else
      \expandafter\AtBeginShipoutUpperLeft
    \fi
    {%
      \put(0,0){%
        \makebox(0,0)[lt]{%
          \begin{tikzpicture}[%
            bl/.style={},%
            br/.style={xshift=\pagegrid@width,xscale=-1},%
            tl/.style={yshift=\pagegrid@height,yscale=-1},%
            tr/.style={xshift=\pagegrid@width,%
                       yshift=\pagegrid@height,scale=-1}%
          ]%
            \useasboundingbox
              (0mm,\pagegrid@height) rectangle (0mm,\pagegrid@height);%
            \draw[%
              \pagegrid@origin@a,%
              step=\pagegrid@step,%
              style=help lines,%
              ultra thin%
            ] (0mm,0mm) grid (\pagegrid@width,\pagegrid@height);%
            \ifx\pagegrid@origin@b\@empty
            \else
              \draw[%
                \pagegrid@origin@b,%
                step=10\pagegrid@step,%
                {\pagegrid@secondcolor},%
                very thin%
              ] (0mm,0mm) grid (\pagegrid@width,\pagegrid@height);%
            \fi
            \draw[%
               \pagegrid@origin@a,%
               step=10\pagegrid@step,%
               {\pagegrid@firstcolor},%
               very thin%
            ] (0mm,0mm) grid (\pagegrid@width,\pagegrid@height);%
            \ifx\pagegrid@origin@b\@empty
            \else
              \draw[%
                \pagegrid@origin@b,%
                step=50\pagegrid@step,%
                {\pagegrid@secondcolor},%
                thick%
              ] (0mm,0mm) grid (\pagegrid@width,\pagegrid@height);%
            \fi
            \draw[%
              \pagegrid@origin@a,%
              step=50\pagegrid@step,%
              {\pagegrid@firstcolor},%
              thick%
            ] (0mm,0mm) grid (\pagegrid@width,\pagegrid@height);%
            \ifpagegrid@arrows
              \ifx\pagegrid@origin@b\@empty
              \else
                \draw[%
                  \pagegrid@origin@b,%
                  {\pagegrid@secondcolor},%
                  stroke,%
                  line width=1pt,%
                  line cap=round%
                ] (0mm,0mm) %
                -- (\pagegrid@arrowlength,\pagegrid@arrowlength) %
                   (\pagegrid@arrowlength,.5\pagegrid@arrowlength) %
                -- (\pagegrid@arrowlength,\pagegrid@arrowlength) %
                -- (.5\pagegrid@arrowlength,\pagegrid@arrowlength);%
              \fi
              \draw[%
                \pagegrid@origin@a,%
                {\pagegrid@firstcolor},%
                stroke,%
                line width=1pt,%
                line cap=round%
              ] (0mm,0mm) %
              -- (\pagegrid@arrowlength,\pagegrid@arrowlength) %
                 (\pagegrid@arrowlength,.5\pagegrid@arrowlength) %
              -- (\pagegrid@arrowlength,\pagegrid@arrowlength) %
              -- (.5\pagegrid@arrowlength,\pagegrid@arrowlength);%
            \fi
          \end{tikzpicture}%
        }%
      }%
    }%
    \ifnum\pagegrid@double=\tw@
      \pagegrid@ShipoutDouble\pagegrid@DoubleBox
    \fi
  \fi
}
\pagegrid@AtEnd
\endinput
%%
%% End of file `pagegrid.sty'.
