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%% Copyright (C) 2015-2020
%% Rolf Niepraschk, Rolf.Niepraschk@gmx.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 2003/12/01 or later.
%%
%% This work has the LPPL maintenance status "author-maintained".
\ProvidesFile{copy.lco}[2020/10/22 v0.3a copy letter-class-option (RN)]
\providecommand\IfFormatAtLeastTF{\@ifl@t@r\fmtversion}
\IfFormatAtLeastTF{2020/10/01}{}{%
\PackageError{copy.lco}{%
LaTeX version equal to or newer \MessageBreak
than '2020/10/01' is required%
}{%
Renew your TeX installation.%
}%
}
\RequirePackage{xcolor,graphicx}
\AtEndLetter{% Saving the number of total pages of each letter in a separate macro
\expandafter\xdef\csname CP@max@pages@\the\c@letter\endcsname{\the\c@page}%
}
\newcommand*\save@page@copies{% Saving each output page in a separate box
\expandafter\newsavebox\csname page@box@\the\c@letter @\the\c@page\endcsname
\@latex@info@no@line{Save page \the\c@page\space of letter \the\c@letter
\space to \string\page@box@\the\c@letter @\the\c@page}%
\global\setbox\csname page@box@\the\c@letter @\the\c@page\endcsname=
\copy\ShipoutBox
}
\AddToHook{shipout/before}[CP@save]{\save@page@copies}
\newcommand*\LetterCopyMarker{%
\put(0.5\paperwidth,-0.5\paperheight){%
\makebox(0,0)[c]{\resizebox{\textwidth}{!}{\rotatebox{45}{%
\textsf{\textbf{\color{lightgray}\strut\usekomavar*{copy}}}}}}%
}%
}
\AddToHook{enddocument/afteraux}[CP@shipout]{%
\RemoveFromHook{shipout/before}[CP@save]%
\if@twoside\ifodd\ReadonlyShipoutCounter
\@latex@info@no@line{Output an empty page}%
\shipout\null
\fi\fi
\AddToHook{shipout/background}[CP@marker]{\LetterCopyMarker}%
\@tempcnta=\z@
\loop% iterate over all letters
\advance\@tempcnta\@ne
{%
\c@page=\z@
\edef\@tempa{\@nameuse{CP@max@pages@\the\@tempcnta}}% total pages
\loop% iterate over all pages of this letter
\advance\c@page\@ne
\@latex@info@no@line{Output of the copy of page \the\c@page\space
of letter \the\@tempcnta}%
\setbox\ShipoutBox=\box\@nameuse{page@box@\the\@tempcnta @\the\c@page}%
\shipout\box\ShipoutBox
\ifnum \c@page < \@tempa
\repeat
}%
\ifnum \@tempcnta < \c@letter
\repeat
\RemoveFromHook{shipout/background}[CP@marker]
\RemoveFromHook{enddocument/afteraux}[CP@shipout]
}
\newkomavar[\copyname]{copy}
\newcommand*\copyname{Copy}
\defcaptionname{american,australian,british,canadian,%
english,newzealand,UKenglish,USenglish}\copyname{Copy}%
\defcaptionname{german,ngerman,austrian,naustrian,%
swissgerman,nswissgerman}\copyname{Kopie}
\defcaptionname{acadian,francais,french}\copyname{Copie}
\defcaptionname{spanish,italian,portugese}\copyname{Copia}
\defcaptionname{polish}\copyname{Kopia}
\defcaptionname{russian}\copyname{Копия}
\endinput
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