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%++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++%
% This is file 'xwatermark.sty', version 1.3.                                %
%                                                                            %
% This package puts user-specified watermarks (graphics and arbitrary        %
% texts) on select pages of documents. See package documentation             %
% for further details.                                                       %
%                                                                            %
% 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 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.         %
%                                                                            %
% The LPPL maintenance status of this software is 'author-maintained'.       %
%                                                                            %
% This software is provided 'as it is', without warranty of any kind,        %
% either expressed or implied, including, but not limited to, the            %
% implied warranties of merchantability and fitness for a particular         %
% purpose.                                                                   %
%                                                                            %
% Copyright (c) 2009 Ahmed Musa (a.musa@rocketmail.com).                     %
%++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++%
\begingroup
\catcode064=11% @
\catcode123=01% {
\catcode125=02% }
\def\x{\endgroup
  \edef\xwm@RestoreCodeAtEnd{%
    \catcode035=\the\catcode035\relax
    \catcode064=\the\catcode064\relax
    \catcode123=\the\catcode123\relax
    \catcode125=\the\catcode125\relax
  }%
}
\x
\catcode035=06% #
\catcode064=11% @
\catcode123=01% {
\catcode125=02% }
\def\xwm@EnsureCode#1#2{%
  \edef\xwm@RestoreCodeAtEnd{%
    \xwm@RestoreCodeAtEnd
    \catcode#1=\the\catcode#1\relax
  }%
  \catcode#1=#2\relax
}
\AtEndOfPackage{\xwm@RestoreCodeAtEnd}
\xwm@EnsureCode{010}{12}% ^^J
\xwm@EnsureCode{033}{12}% !
\xwm@EnsureCode{039}{12}% '
\xwm@EnsureCode{040}{12}% (
\xwm@EnsureCode{041}{12}% )
\xwm@EnsureCode{042}{12}% *
\xwm@EnsureCode{044}{12}% ,
\xwm@EnsureCode{045}{12}% -
\xwm@EnsureCode{046}{12}% .
\xwm@EnsureCode{047}{12}% /
\xwm@EnsureCode{058}{12}% :
\xwm@EnsureCode{060}{12}% <
\xwm@EnsureCode{061}{12}% =
\xwm@EnsureCode{062}{12}% >
\xwm@EnsureCode{094}{07}% ^ (superscript)
\xwm@EnsureCode{096}{12}% `
\xwm@EnsureCode{254}{12}% ^^fe
\xwm@EnsureCode{255}{12}% ^^ff
\xwm@EnsureCode{126}{13}% ~ (active)
\def\readRCS$#1 #2 #3 #4 #5 #6 #7 #8 ${%
  \def\filedate{#4}%
  \def\fileversion{v#3}%
  \def\filetime{#5}%
  \def\fileauthor{#6\space#7}
}
\def\filedesc{%
  Puts user-specified watermarks on select document pages (\fileauthor)}
\readRCS
$Id: xwatermark.sty,v 1.3 2009/10/27 09:00:00 Ahmed Musa Exp $
\ProvidesPackage{xwatermark}[\filedate\space\fileversion\space\filedesc]
\NeedsTeXFormat{LaTeX2e}[1996/12/01]
\RequirePackage{etoolbox}[2009/08/06]
\RequirePackage{ltxnew}[2009/07/22]
\newrobustcmd\xwm@info[1]{\PackageInfo{xwatermark}{#1\@gobble}}
\newrobustcmd\xwm@warn[1]{\PackageWarningNoLine{xwatermark}{#1}}
\newrobustcmd\xwm@err[1]{\PackageError{xwatermark}{#1}{\@ehc}}
\newrobustcmd*\xwm@numdef[2]{%
  \ifstrempty{#2}{\xwm@err{Empty argument for counter}}{}
  \ifundef{#1}{\new\count#1\relax #1=\numexpr#2\relax}{#1=\numexpr#2\relax}
}
\newrobustcmd*\xwm@dimdef[2]{%
 \ifstrempty{#2}{\xwm@err{Empty argument for dimension}}{}
  \ifundef{#1}{\new\dimen#1\relax #1=\dimexpr#2\relax}{#1=\dimexpr#2\relax}
}
\new\long\def\xwm@afterfi#1\fi{\fi#1}
\new\let\xwm@pagestart\@empty
\new\let\xwm@pageend\@empty
\new\def\xwm@pagerange#1{%
  \renew\def\xwm@pagestart{#1}%
  \renew\def\xwm@pageend{}%
  \xwm@pagerange@ifhyphen#1-\@nil{%
    \ifx\xwm@pagestart\@empty
      \expandafter\xwm@err{Empty page range passed to package}
    \else
      \expandafter\xwm@err{Only page \xwm@pagestart\MessageBreak
        was passed as page range}
    \fi
  }{%
    \xwm@pagerange@split#1\@nil
  }%
}
\new\def\xwm@pagerange@split#1-#2\@nil{%
  \renew\def\xwm@pagestart{#1}%
  \renew\def\xwm@pageend{#2}%
  \xwm@pagerange@ifhyphen#2-\@nil{%
    \ifx\xwm@pagestart\@empty
      \expandafter\xwm@err{No starting page for page range}
    \else
      \ifx\xwm@pageend\@empty
        \expandafter\expandafter\expandafter%
        \xwm@err{No ending page for page range}
      \else
        \expandafter\expandafter\expandafter%
        \xwm@info{Page range:\space
          \xwm@pagestart\space to \xwm@pageend}
      \fi
    \fi
  }{%
    \xwm@err{Too many hyphens in page range}
  }%
}
\new\def\xwm@pagerange@ifhyphen#1-#2\@nil{%
  \ifstrempty{#2}{\expandafter\@firstoftwo}{\expandafter\@secondoftwo}
}
\RequirePackage{fix-cm}
\RequirePackage{graphicx}
\RequirePackage{xkeyval}[2008/08/13]
\RequirePackage{atbegshi}[2008/07/31]
\RequirePackage{picture}[2008/11/26]
\@ifpackageloaded{xcolor}{%
  \xwm@info{You have loaded 'xcolor' package\MessageBreak
    with options that possibly differ\MessageBreak
    from those used in 'xwatermark' package}
}{%
  \RequirePackage[table,hyperref]{xcolor}[2007/01/21]
  \xwm@info{'xcolor' package loaded with\MessageBreak
    options 'table', 'hyperref'}
}
\RequirePackage{xifthen}[2009/04/17]
\RequirePackage{boxedminipage}
\xwm@dimdef{\xwm@xcoord@a}{\z@}
\xwm@dimdef{\xwm@ycoord@a}{\z@}
\xwm@numdef{\xwm@minmark}{\z@}
\xwm@numdef{\xwm@c@printmark}{\z@}
\new\let\xwm@papercenter\relax
\newtoggle{pdf}
\ifundef\pdfoutput{}{\unless\ifnum\pdfoutput<1\toggletrue{pdf}\fi}
\define@boolkey[XWM]{xwatermark}[xwm@]{printwatermark}[true]{%
  \ifxwm@printwatermark\xwm@minmark=\@ne\fi}
\define@boolkeys[XWM]{xwatermark}[xwm@bool@]{onepageonly,%
  prange,tmark,pmark,showcenter}[true]
\define@boolkey[XWM]{xwatermark}[xwm@]{firstpage}[true]{%
  \ifxwm@firstpage\xwm@minmark=1\fi}
\define@boolkey[XWM]{xwatermark}[xwm@]{allpages}[true]{%
  \ifxwm@allpages\xwm@minmark=1\fi}
\define@boolkey[XWM]{xwatermark}[xwm@]{oddpages}[true]{%
  \ifxwm@oddpages\xwm@minmark=1\fi}
\define@boolkey[XWM]{xwatermark}[xwm@]{evenpages}[true]{%
  \ifxwm@evenpages\xwm@minmark=1\fi}
\define@boolkey[XWM]{xwatermark}[xwm@]{dgeometry}[true]{%
  \AtEndPreamble{%
    \ifxwm@dgeometry
      \ifcsdef{geometry}{%
      \geometry{pass}%
      \xwm@info{I've detected that you've loaded the\MessageBreak
        'geometry' package. To avoid scale changes by\MessageBreak
        'geometry', I have disabled its features.\MessageBreak
        You should set your watermarks before using\MessageBreak
        'geometry'}}{}%
    \fi
  }%
}
\define@choicekey*+[XWM]{xwatermark}{align}[\xwm@val\xwm@nr]%
{center,right,left,justified}[center]{%
  \ifcase\xwm@nr\relax
    \def\xwm@align{\centering}%
  \or
    \def\xwm@align{\flushright}%
  \or
    \def\xwm@align{\flushleft}%
  \or
    \let\xwm@align\relax
  \fi
}{%
  \xwm@err{Inadmissible value '#1' for align}
}
\define@cmdkey[XWM]{xwatermark}[xwm@]{page}[1]{%
  \xwm@bool@onepageonlytrue
  \xwm@minmark=\@ne\relax
}
\define@key[XWM]{xwatermark}{pages}[1-1]{%
  \xwm@bool@prangetrue
  \xwm@pagerange{#1}%
  \xwm@minmark=\@ne\relax
}
\iftoggle{pdf}{\new\def\xwm@picfilex{pdf}}{\new\def\xwm@picfilex{eps}}
\define@cmdkey[XWM]{xwatermark}[xwm@]{picfile}[]{%
  \ifstrempty{#1}{\xwm@bool@pmarkfalse}{%
    \xwm@bool@pmarktrue
    \xwm@minmark=\@ne\relax
  }
}
\define@cmdkey[XWM]{xwatermark}[xwm@]{textmark}[DRAFT]{%
  \ifstrempty{#1}{\xwm@bool@tmarkfalse}{\xwm@bool@tmarktrue}%
}
\define@cmdkey[XWM]{xwatermark}[xwm@]{picfilex}[eps]{%
  \ifthenelse{\equal{\xwm@picfilex}{pdf}\OR\equal{\xwm@picfilex}{png}
    \OR\equal{\xwm@picfilex}{jpeg}\OR\equal{\xwm@picfilex}{eps}}{}{%
    \xwm@err{File extension \xwm@picfilex\space inadmissible}}
  \iftoggle{pdf}{%
    \ifthenelse{\isempty{\xwm@picfilex}\OR\equal{\xwm@picfilex}{eps}}%
      {\def\xwm@picfilex{pdf}}{}%
  }{%
    \ifthenelse{\isempty{\xwm@picfilex}\OR\equal{\xwm@picfilex}{pdf}%
      \OR\equal{\xwm@picfilex}{png}\OR\equal{\xwm@picfilex}{jpeg}}%
      {\def\xwm@picfilex{eps}}{}%
  }%
}
\RequirePackage[parser=;,macroprefix=xwm@,keyprefix=XWM,
  keyfamily=xwatermark]{keyreader}
\define@keylist{2,color,gray!25,;2,fontfamily,bch,;2,angle,45,;
  2,scale,1,;2,coordunit,mm,;2,fontsize,5cm,;2,fontseries,b,;
  2,height,\paperwidth,;2,width,\paperheight,;2,xcoord,\z@,;
  2,ycoord,\z@,;2,picscale,1,;2,picbb,0 0 100 100,;}
\presetkeys[XWM]{xwatermark}{tmark,angle,scale,color,
  textmark,fontfamily,fontsize,fontseries,coordunit,
  align,height,width,xcoord,ycoord,picscale,picbb}{}
\DeclareOptionX*{\xwm@warn{Unknown option '\CurrentOption' ignored}}
\ExecuteOptionsX[XWM]<xwatermark>{printwatermark}
\ProcessOptionsX*[XWM]<xwatermark>\relax
\newrobustcmd\watermarksetup[1]{\setkeys[XWM]{xwatermark}{#1}}
\def\xwm@nolateoptions{printwatermark}
\AtBeginDocument{%
  \@for\@mem:=\xwm@nolateoptions\do{%
    \expandafter\edef\expandafter\@mem\expandafter{\expandafter
      \expandafter\expandafter\zap@space\expandafter\@mem\space\@empty}%
    \key@ifundefined[XWM]{xwatermark}{\@mem}{}{%
      \xwm@disable@keys[XWM]{xwatermark}{\@mem}%
    }%
  }%
}
\new\def\xwm@coords{\begingroup%
  \protected@edef\@tempa{\endgroup%
    \xwm@dimdef{\xwm@xcoord@a}{0.5\paperwidth+
      \number\xwm@xcoord\xwm@coordunit}%
    \xwm@dimdef{\xwm@ycoord@a}{-0.5\paperheight+
      \number\xwm@ycoord\xwm@coordunit}%
  }\@tempa%
}
\unless\ifxwm@printwatermark
  \xwm@info{printwatermark=false: no watermark printed}
\fi
\newcommand\xwm@papercenter{%
  \color{red}%
  \put(0,-0.5\paperheight){\line(1,0){\paperwidth}}%
  \put(0.5\paperwidth,0){\line(0,-1){\paperheight}}%
  \put(0.5\paperwidth,-0.5\paperheight){\circle{10}}%
}%
\newcommand\xwm@insert@textmark@a{%
  \leavevmode\removelastskip\noindent%
  \makebox(0,0){\rotatebox[origin=c]{\xwm@angle}{\scalebox{\xwm@scale}{%
    \parbox[c][\xwm@height][c]{\xwm@width}{%
      \color{\xwm@color}%
      \fontfamily{\xwm@fontfamily}\fontseries{\xwm@fontseries}%
      \fontsize{\xwm@fontsize}{1.2\xwm@fontsize}\selectfont%
      \xwm@align\xwm@textmark%
  }}}}\relax
  \removelastskip\normalcolor%
}%
\newcommand\xwm@insert@picmark@a{%
  \xwm@align
  \makebox(0,0){\rotatebox{\xwm@angle}{\xwm@insertpic}}\relax
}%
\newcommand\xwm@insert@textmark@b{%
  \put(\xwm@xcoord@a,\xwm@ycoord@a){\xwm@insert@textmark@a}%
}%
\newcommand\xwm@insert@picmark@b{%
  \put(\xwm@xcoord@a,\xwm@ycoord@a){\xwm@insert@picmark@a}%
}%
\newcommand\xwm@insert@mark@a{%
  \xwm@coords
  \ifxwm@bool@tmark\xwm@insert@textmark@b\fi
  \ifxwm@bool@pmark\xwm@insert@picmark@b\fi
  \ifxwm@bool@showcenter\xwm@papercenter\fi
}%
\newcommand\xwm@insertmark{%
  \ifnum\xwm@minmark=\@ne
    \ifxwm@allpages
      \xwm@insert@mark@a
    \else\ifxwm@firstpage
      \ifnum\c@page=\@ne\xwm@insert@mark@a\fi
    \else\ifxwm@oddpages
      \ifodd\c@page\xwm@insert@mark@a\fi
    \else\ifxwm@evenpages
      \unless\ifodd\c@page\xwm@insert@mark@a\fi
    \else\ifxwm@bool@onepageonly
      \ifnum\c@page=\number\xwm@page\xwm@insert@mark@a\fi
    \else\ifxwm@bool@prange
      \ifthenelse{\(\c@page=\xwm@pagestart\OR\c@page=\xwm@pageend\)
        \OR\(\c@page>\xwm@pagestart\AND\c@page<\xwm@pageend\)}{%
        \xwm@insert@mark@a}{}%
    \else\ifxwm@printwatermark
      \ifnum\c@page=\@ne
        \xwm@bool@tmarktrue\xwm@bool@pmarkfalse
        \xwm@dimdef{\xwm@xcoord@a}{0.5\paperwidth}%
        \xwm@dimdef{\xwm@ycoord@a}{-0.5\paperheight}%
        \xwm@insert@mark@a
        \xwm@info{Draftmark printed on page 1 only:\MessageBreak
          You've specified no pages for watermark}%
      \fi
    \fi\fi\fi\fi\fi\fi\fi
  \fi
}%
\ifxwm@printwatermark
  \AtBeginShipout{\AtBeginShipoutUpperLeft{\xwm@insertmark}}%
  \xwm@info{Option 'printwatermark=true': watermark printed}%
\fi
\krsetup{keyfamily=minipage,macroprefix=mp@}
\define@keylist{2,width,\paperwidth,;2,textcolor,black,;
  2,framecolor,white,;2,framesep,3pt,;2,framerule,0.4pt,;
  2,text,No text passed.,}
\define@cmdkey[XWM]{minipage}[mp@]{align}[center]{%
  \protected@edef\mp@align{\mp@align}%
  \def\@tempa{center}%
  \ifx\mp@align\@tempa
    \gdef\mp@align{\centering}%
  \else
    \def\@tempa{right}%
    \ifx\mp@align\@tempa
      \gdef\mp@align{\flushright}%
    \else
      \def\@tempa{left}%
      \ifx\mp@align\@tempa
        \gdef\mp@align{\flushleft}%
      \else
        \def\@tempa{justified}%
        \ifx\mp@align\@tempa
          \global\let\mp@align\relax
        \else
          \xwm@err{Inadmissible value '#1' for minipage's align}
        \fi
      \fi
    \fi
  \fi
}
\presetkeys[XWM]{minipage}{align,width,textcolor,text,framesep,
  framerule,framecolor}{}%
\long\def\xwminipage#1{%
  \setkeys[XWM]{minipage}{#1}%
  \begingroup
  \fboxsep=\mp@framesep\relax
  \fboxrule=\mp@framerule\relax
  \removelastskip
  \color{\mp@framecolor}%
  \noindent
  \begin{boxedminipage}{\mp@width}%
    \mp@align\textcolor{\mp@textcolor}{\mp@text}%
  \end{boxedminipage}\relax
  \removelastskip
  \endgroup
}
\krsetup{keyfamily=colorbox,macroprefix=cb@}
\define@keylist{2,width,\textwidth,;2,textcolor,black,;
  2,fillcolor,yellow!55,;2,framecolor,white,;
  2,text,No text passed.,;2,framesep,3\p@,;2,framerule,0.4\p@,}
\define@choicekey*+[XWM]{colorbox}{align}[\val\nr]%
{center,right,left,justified}[center]{%
  \protected@edef\cb@align{\val}
}{%
  \xwm@err{Inadmissible value '#1' for colorbox's align}
}
\presetkeys[XWM]{colorbox}{align=center,width,fillcolor,textcolor,text,
  framesep,framerule,framecolor}{}
\newcommand\xwcolorbox[1]{%
  \setkeys[XWM]{colorbox}{#1}%
  \color{\cb@framecolor}%
  \removelastskip\noindent
  \colorbox{\cb@fillcolor}{\relax
    \xwminipage{framesep=\cb@framesep,framerule=\cb@framerule,
      framecolor=\cb@framecolor,align=\cb@align,width=\cb@width,
      text=\cb@text,textcolor=\cb@textcolor%
    }\relax
  }%
  \removelastskip\normalcolor
}%
\newcommand\ywcolorbox[1]{%
  \setkeys[XWM]{colorbox}{#1}%
  \color{\cb@framecolor}%
  \begin{center}%
  \makebox[\z@][c]{%
    \colorbox{\cb@fillcolor}{\relax
      \xwminipage{framesep=\cb@framesep,framerule=\cb@framerule,
        framecolor=\cb@framecolor,align=\cb@align,width=\cb@width,
        text=\cb@text,textcolor=\cb@textcolor
      }\relax
    }%
  }%
  \end{center}%
  \removelastskip\normalcolor
}%
\new\def\xwm@insertpic{\begingroup
  \protected@edef\@tempa{\endgroup%
    \iftoggle{pdf}{%
      \noexpand\IfFileExists{\xwm@picfile.\xwm@picfilex}{%
        \noexpand\includegraphics[viewport=\xwm@picbb,scale=\xwm@picscale]%
          {\xwm@picfile.\xwm@picfilex}%
      }{\xwm@err{No file \xwm@picfile.\xwm@picfilex\space or wrong path}}%
    }{%
      \noexpand\IfFileExists{\xwm@picfile.\xwm@picfilex}{%
        \noexpand\includegraphics[bb=\xwm@picbb,scale=\xwm@picscale]%
          {\xwm@picfile.\xwm@picfilex}%
      }{\xwm@err{No file \xwm@picfile.\xwm@picfilex\space or wrong path}}%
    }%
  }\@tempa%
}
\newrobustcmd\xwm@dis@ble@keys[1]{%
  \XKV@checksanitizeb{#1}\XKV@tempa
  \XKV@for@o\XKV@tempa\XKV@tempa{%
    \XKV@ifundefined{\XKV@header\XKV@tempa}{%
      \XKV@err{key '\XKV@tempa' undefined}%
    }{%
      \edef\XKV@tempb{%
        \noexpand\xwm@err{Key '\XKV@tempa' has been disabled.\MessageBreak
         You can't set or reset it at this late stage.\MessageBreak
         You should have set it earlier in the\MessageBreak
         \string\documentclass\space or \string\usepackage}%
      }%
      \XKV@ifundefined{\XKV@header\XKV@tempa @default}{%
        \edef\XKV@tempc{\noexpand\XKV@define@key{\XKV@tempa}}%
      }{%
        \edef\XKV@tempc{\noexpand\XKV@define@key{\XKV@tempa}[]}%
      }%
      \expandafter\XKV@tempc\expandafter{\XKV@tempb}%
    }%
  }%
}
\newcommand\xwm@disable@keys{\XKV@testoptb\xwm@dis@ble@keys}

\endinput