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\NeedsTeXFormat{LaTeX2e}
% A package to help make a document based on scanned pages.
%
% Copyright (c) 2014--2016 by Michael Sharpe, msharpe at ucsd dot edu;
% This is free software, subject to the LATEX Project Public License.
\def\fileversion{1.05}
\def\filedate{2016/10/09}
\ProvidesPackage{scanpages}[\filedate\space v\fileversion]
\message{`scanpages' v\fileversion, \filedate\space Macros to help create documents from scanned pages (msharpe)}
%
\RequirePackage{ifpdf}
\RequirePackage{pgffor}
\RequirePackage{xcolor}
\RequirePackage{xkeyval}
\RequirePackage{fp-basic}
\RequirePackage{graphicx}
\RequirePackage{etoolbox}
%\RequirePackage{trace}
\ifpdf\else
\@latex@error{Must be processed with pdf[la]tex!}\@eha
\fi
\newif\ifscanp@nogrid
\define@boolkey{scanp}{nogrid}[true]{%
\csname scanp@nogrid#1\endcsname}
\def\scanp@origscale{1.0}
\def\scanp@srcscale{1.0}
\def\scanp@invscale{1.0}
\define@key{scanp}{scale}[1.0]{\def\scanp@srcscale{#1}}
\def\scanp@llx{1in}
\def\scanp@lly{1in}
\def\scanp@srcw{400\p@}
\def\scanp@srch{600\p@}
\define@key{scanp}{llx}[0]{\def\scanp@llx{#1}}%
\define@key{scanp}{lly}[0]{\def\scanp@lly{#1}}%
\define@key{scanp}{w}[0]{\def\scanp@srcw{#1}}%
\define@key{scanp}{h}[0]{\def\scanp@srch{#1}}%
\DeclareOption*{%
\begingroup
\edef\x{\endgroup
\noexpand\setkeys{scanp}{\CurrentOption}}%
\x}
\ProcessOptions*
\def\bp@ratio{.99264} % factor to multiply num of pt to get num of bp
%new
\newcommand{\origpgcmd}{\put(400,-30){p.\ $\the\origpgnum$ in orig.}}
\newcount\origpgnum %page in original
\newif\ifscanp@origindest
\newif\ifscanp@origingrid
\newif\ifscanp@change
% end new
\newcount\scanp@pgcnt
\setlength\unitlength{1bp}
\long\def\putn(#1,#2)#3{%
\@killglue%
\dimen0\@picht\advance\dimen0 -#2\unitlength%
\raise\dimen0\hb@xt@\z@{\kern#1\unitlength #3\hss}
\ignorespaces}
\def\unitlength@off{\let\@unitlength\ignorespaces\ignorespaces}
\def\scanp@setlength#1#2{% if #2 has no dimension, append dimension
\let\@unitlength\unitlength
\afterassignment\unitlength@off
#1 #2\@unitlength%
}
\def\scanp@addtolength#1#2{% if #2 has no dimension, append dimension
\let\@unitlength\unitlength
\afterassignment\unitlength@off
\advance#1 #2\@unitlength%
}
\newdimen\scanp@dwdim\newdimen\scanp@dhdim % dest width and height
\newdimen\scanp@swdim\newdimen\scanp@shdim % src width and height
\newdimen\scanp@dwdimbp\newdimen\scanp@dhdimbp % dest width and height in bp
\newdimen\scanp@xindent\newdimen\scanp@yindent
\newdimen\scanp@xl\newdimen\scanp@yl\newdimen\scanp@xr\newdimen\scanp@yr
\newdimen\scanp@xlbp\newdimen\scanp@ylbp\newdimen\scanp@xrbp\newdimen\scanp@yrbp\newdimen\@dima
%
\def\initviewport#1#2#3#4#5{% srcscale,llx,lly,srcw,srch
\scanp@pgcnt=\z@
\edef\scanp@srcscale{#1}
\FPdiv{\scanp@invscale}{1.0}{\scanp@srcscale}
\edef\scanp@llx{#2}
\edef\scanp@lly{#3}
\edef\scanp@srcw{#4}
\edef\scanp@srch{#5}
\scanp@setlength{\scanp@swdim}{\scanp@srcw}
\scanp@setlength{\scanp@shdim}{\scanp@srch}
\scanp@dwdim=\scanp@srcscale\scanp@swdim
\scanp@dhdim=\scanp@srcscale\scanp@shdim
\scanp@dwdimbp=\bp@ratio\scanp@dwdim
\scanp@dhdimbp=\bp@ratio\scanp@dhdim
\scanp@setlength{\scanp@xl}{\scanp@llx}
\scanp@setlength{\scanp@yl}{\scanp@lly}
\scanp@xr=\scanp@xl \advance\scanp@xr\scanp@swdim
\scanp@yr=\scanp@yl \advance\scanp@yr\scanp@shdim
\scanp@xindent=\textwidth \scanp@yindent=\textheight
\advance\scanp@xindent -\scanp@dwdim\advance\scanp@yindent -\scanp@dhdim
\scanp@xindent=0.5\scanp@xindent\scanp@yindent=0.5\scanp@yindent
\advance\scanp@yindent -14\p@
}
\initviewport{\scanp@srcscale}{\scanp@llx}{\scanp@lly}{\scanp@srcw}{\scanp@srch}
%
\def\whitesq(#1)#2{%
\@ifnextchar[{\whitesq@(#1){#2}}{\whitesq@(#1){#2}[#2]}}
\long\def\whitesq@(#1)#2[#3]{\put(#1){\scalebox{#2}[#3]{\color{white}{\usefont{U}{scanwipe}{m}{n}\char"00}}}}
\def\whitecirc(#1)#2{%
\@ifnextchar[{\whitecirc@(#1){#2}}{\whitecirc@(#1){#2}[#2]}}
\long\def\whitecirc@(#1)#2[#3]{\put(#1){\scalebox{#2}[#3]{\color{white}{\usefont{U}{scanwipe}{m}{n}\char"01}}}}
%
%\newdimen\scanp@whw\newdimen\scanp@whh %width, height of whiteout
%\def\whiteout(#1)#2#3{\scanp@setlength{\scanp@whw}{#2}%
%\scanp@setlength{\scanp@whh}{#3}%
%\put(#1){\color{white}\fcolorbox{white}{white}{\vrule width \the\scanp@whw height \the\scanp@whh}}}
\define@key{scanpi}{origpgnum}{\global\origpgnum=#1 \global\scanp@origingridtrue}
\define@boolkey{scanpi}{origindest}[true]{\csname scanp@change#1\endcsname}
\define@boolkey{scanpi}{origpgnumoff}[true]{\global\scanp@origindestfalse\global\scanp@origingridfalse}
\define@key{scanpi}{dx}{\def\scanp@dx{#1}}
\define@key{scanpi}{dy}{\def\scanp@dy{#1}}
\define@key{scanpi}{page}{\def\scanp@page{#1}}
\define@key{scanpi}{rot}{\def\scanp@rot{#1}}
\define@key{scanpi}{tanrot}{\def\scanp@skew{#1}}
\newdimen\scanp@dxdim\newdimen\scanp@dydim
%
\def\scanpage{\@ifnextchar[\scanpage@i{\scanpage@i[]}}
\def\scanpage@i[#1]#2{\advance\scanp@pgcnt\@ne\begingroup\setkeys{scanpi}{#1}%
\ifscanp@change\global\scanp@origindesttrue %
\global\scanp@origingridfalse %
\global\scanp@changefalse \fi%
\edef\scanp@head{\noexpand\vspace*{\scanp@yindent}\noexpand\noindent\noexpand\hspace*{\scanp@xindent}\noexpand\picture(\strip@pt\scanp@dwdimbp,\strip@pt\scanp@dhdimbp)}
%\edef\@x{\strip@pt\scanp@dwdimbp}\edef\@y{\strip@pt\scanp@dhdimbp}
%\vspace*{\the\scanp@yindent}\noindent\hspace*{\scanp@xindent}\picture(\@x,\@y)
\ifdefvoid{\scanp@dx}{}{\scanp@setlength\scanp@dxdim{-\scanp@dx}\scanp@dxdim=\scanp@invscale\scanp@dxdim\advance\scanp@xl \scanp@dxdim \advance\scanp@xr \scanp@dxdim}
\ifdefvoid{\scanp@dy}{}{\scanp@setlength\scanp@dydim{-\scanp@dy}\scanp@dydim=\scanp@invscale\scanp@dydim\advance\scanp@yl \scanp@dydim \advance\scanp@yr \scanp@dydim}
\scanp@xlbp=\bp@ratio\scanp@xl
\scanp@xrbp=\bp@ratio\scanp@xr
\scanp@ylbp=\bp@ratio\scanp@yl
\scanp@yrbp=\bp@ratio\scanp@yr
%\ifblank{#2}{\global\scanp@blanktrue}{}
\edef\scanp@cmd{viewport=\strip@pt\scanp@xlbp\space\strip@pt\scanp@ylbp\space\strip@pt\scanp@xrbp\space\strip@pt\scanp@yrbp, clip]{#2}}
\ifdefvoid{\scanp@rot}{%
\ifdefvoid{\scanp@skew}{}{%
\@dima=\scanp@skew\p@\@dima=57.14\@dima\edef\scanp@cmd{angle=\strip@pt\@dima,origin=c,\scanp@cmd}}}{\edef\scanp@cmd{angle=\scanp@rot,origin=c,\scanp@cmd}}%
\if\scanp@srcscale\scanp@origscale\else\edef\scanp@cmd{scale=\scanp@srcscale,\scanp@cmd}\fi
\ifdefvoid{\scanp@page}{}{\edef\scanp@cmd{page=\scanp@page,\scanp@cmd}}
\edef\scanp@cmd{\noexpand\scanp@head\noexpand\put(0,0){\noexpand\includegraphics[\scanp@cmd}}
\ifblank{#2}{\scanp@head}{\scanp@cmd} % \begingroup, start \picture, \put pdf at (0,0)
\ifscanp@origindest\origpgcmd\fi
\thegrid{\strip@pt\scanp@dwdimbp}{\strip@pt\scanp@dhdimbp}%
\global\advance\origpgnum\@ne}
\ifscanp@nogrid\def\thegrid#1#2{}\else%
\long\def\thegrid#1#2{\edef\scanp@gcmd{\noexpand\put(0,0){\noexpand\line(1,0){#1}}
\noexpand\put(0,0){\noexpand\line(0,1){#2}}
\noexpand\put(#1,0){\noexpand\line(0,1){#2}}
\noexpand\put(0,#2){\noexpand\line(1,0){#1}}}
\foreach\x in{-400,-390,...,800}{%
\put(-400,\x){\color{red!20}\line(1,0){1000}}%
}
\foreach\x in {-300,-290,...,550}{%
\put(\x,-500){\color{red!20}\line(0,1){1500}}%
}
\foreach\x in {-400,-350,...,800}{%
\put(-400,\x){\color{red!50}\line(1,0){1000}}%
\put(-20,\x){\x}
}
\foreach\x in {-300,-250,...,550}{%
\put(\x,-500){\color{red!50}\line(0,1){1500}}%
\put(\x,-15){\x}}
\put(0,-30){\color{blue}Page \the\scanp@pgcnt}%
\scanp@gcmd%
\ifscanp@origingrid\origpgcmd\fi}
\fi % end \ifscanp@nogrid
\endinput
|
