draftwatermark.sty

%%
%% This is file `draftwatermark.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% draftwatermark.dtx  (with options: `draftwatermark')
%% 
%%   IMPORTANT NOTICE:
%% 
%% Copyright 2006, 2020
%% Sergio Callegari <sergio.callegari@gmail.com>
%% 
%% ------------------------------------------------
%% This file is part of the draftwatermark package,
%% a contribution to the LaTeX2e system.
%% ------------------------------------------------
%% 
%% This program consists of the files listed in the README.md file included
%% in the package.
%% 
%% Any modified versions of this file must be renamed with new filenames
%% distinct from draftwatermark.sty.
%% 
%% For distribution of the original source see the terms for copying and
%% modification in the file draftwatermark.dtx.
%% 
%% This generated file may be distributed as long as the original source files,
%% as listed above, are part of the same distribution. (The sources need not
%% necessarily be in the same archive or directory.)
%% 
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{draftwatermark}%
  [2020/12/08 3.0 Put a gray textual watermark on document pages]
\@ifundefined{AddToHook}{%
  \PackageWarningNoLine{draftwatermark}{%
    You appear to be running a version of LaTeX\MessageBreak
    unsupported by current draftwatermark.\MessageBreak
    Forcing fallback to `draftwatermark-2x` that\MessageBreak
    uses an older code base}%
  \RequirePackageWithOptions{draftwatermark-2x}%
  \endinput}{}
\RequirePackage{kvoptions}
\RequirePackage{graphicx}
\RequirePackage{color}
\DeclareBoolOption[false]{firstpageonly}
\define@key{draftwatermark}{firstpage}[true]{%
  \csname draftwatermark@firstpageonly#1\endcsname}
\DeclareBoolOption[true]{stamp}
\DeclareComplementaryOption{nostamp}{stamp}
\DeclareComplementaryOption{final}{stamp}
\DeclareStringOption[45]{angle}
\DeclareStringOption[1]{scale}
\DeclareStringOption[DRAFT]{text}
\DeclareStringOption[0.5\paperwidth]{hpos}
\DeclareStringOption[0.5\paperheight]{vpos}
\DeclareStringOption[0.25\paperwidth]{fontsize}
\DeclareStringOption[gray]{colormodel}
\DeclareStringOption[0.8]{colorspec}
\DeclareStringOption[c]{hanchor}
\DeclareStringOption[m]{vanchor}
\DeclareStringOption[c]{alignment}
\DeclareStringOption[\DraftwatermarkStdMark]{markcmd}
\define@key{draftwatermark}{pos}{%
  \draftwatermark@processpos #1\@nil}
\define@key{draftwatermark}{anchor}{%
  \draftwatermark@processanchor{#1}}
\define@key{draftwatermark}{color}{%
  \draftwatermark@processcolor #1\@nil}
\def\draftwatermark@processpos#1,#2\@nil{%
  \def\draftwatermark@hpos{#1}%
  \def\draftwatermark@vpos{#2}}

\def\draftwatermark@processanchor#1{%
  \def\draftwatermark@tempa{#1}
  \@onelevel@sanitize \draftwatermark@tempa
  \expandafter \@tfor \expandafter \draftwatermark@tempb
    \expandafter :\expandafter =\draftwatermark@tempa
    \do
    {%
      \if \draftwatermark@tempb l%
        \def \draftwatermark@hanchor{l}%
      \else \if \draftwatermark@tempb c%
        \def \draftwatermark@hanchor{c}%
      \else \if \draftwatermark@tempb r%
        \def \draftwatermark@hanchor{r}%
      \else \if \draftwatermark@tempb t%
        \def \draftwatermark@vanchor{t}%
      \else \if \draftwatermark@tempb m%
        \def \draftwatermark@vanchor{m}%
      \else \if \draftwatermark@tempb b%
        \def \draftwatermark@vanchor{b}
      \else
        \PackageError{draftwatermark}{%
          Illegal anchor directive `\draftwatermark@tempb'}%
          {Directive has been ingnored.}%
      \fi\fi\fi\fi\fi\fi
    }}

\def\draftwatermark@processcolor{%
  \@ifnextchar[
    \draftwatermark@processcolor@ii\draftwatermark@processcolor@i}

\def\draftwatermark@processcolor@i#1\@nil{%
  \def\draftwatermark@colormodel{}%
  \def\draftwatermark@colorspec{#1}}

\def\draftwatermark@processcolor@ii[#1]#2\@nil{%
  \def\draftwatermark@colormodel{#1}%
  \def\draftwatermark@colorspec{#2}}

\ProcessKeyvalOptions*
\DisableKeyvalOption{draftwatermark}{firstpageonly}
\DisableKeyvalOption{draftwatermark}{firstpage}

\newcommand\DraftwatermarkOptions[1]{\setkeys{draftwatermark}{#1}}

\newcommand\SetWatermarkAngle[1]{\DraftwatermarkOptions{angle=#1}}
\newcommand\SetWatermarkFontSize[1]{\DraftwatermarkOptions{fontsize=#1}}
\newcommand\SetWatermarkScale[1]{\DraftwatermarkOptions{scale=#1}}
\newcommand\SetWatermarkHorCenter[1]{%
  \DraftwatermarkOptions{hpos=#1, hanchor=c}}
\newcommand\SetWatermarkVerCenter[1]{%
  \DraftwatermarkOptions{vpos=#1, vanchor=m}}
\newcommand\SetWatermarkText[1]{\DraftwatermarkOptions{text={#1}}}
\newcommand\SetWatermarkColor[2][]{%
  \DraftwatermarkOptions{colormodel=#1, colorspec=#2}}
\newcommand\SetWatermarkLightness[1]{%
  \DraftwatermarkOptions{colormodel=gray, colorspec=#1}}

\newcommand\DraftwatermarkStdMark{%
  \rotatebox{\draftwatermark@angle}{%
    \scalebox{\draftwatermark@scale}{%
      \begingroup
      \ifx\draftwatermark@colormodel\@empty
        \color{\draftwatermark@colorspec}%
      \else
        \color[\draftwatermark@colormodel]{\draftwatermark@colorspec}%
      \fi
      \setlength{\@tempdima}{\draftwatermark@fontsize}%
      \fontsize{\@tempdima}{1.2\@tempdima}\selectfont
      \shortstack[\draftwatermark@alignment]{\draftwatermark@text}%
      \endgroup}}}

\newcommand\draftwatermark@printwm[1]{%
  \sbox\@tempboxa{\raisebox{\depth}{#1}}%
  \setlength{\@tempdima}{\draftwatermark@hpos}%
  \setlength{\@tempdimb}{-\draftwatermark@vpos}%
  \edef \draftwatermark@tempa{\draftwatermark@hanchor}%
  \@onelevel@sanitize \draftwatermark@tempa
  \expandafter\def\expandafter\draftwatermark@tempb
    \expandafter{\expandafter\@car \draftwatermark@tempa\@nil}%
  \if \draftwatermark@tempb r%
    \addtolength\@tempdima{-\wd\@tempboxa}%
  \else\if \draftwatermark@tempb c%
    \addtolength\@tempdima{-0.5\wd\@tempboxa}%
  \else\if \draftwatermark@tempb l%
    \relax
  \else
    \PackageError{draftwatermark}{%
      Illegal anchor directive `\draftwatermark@tempb'}%
        {Anchoring to left side.}%
  \fi\fi\fi
  \edef \draftwatermark@tempa{\draftwatermark@vanchor}%
  \@onelevel@sanitize \draftwatermark@tempa
  \expandafter\def\expandafter\draftwatermark@tempb
    \expandafter{\expandafter\@car \draftwatermark@tempa\@nil}%
  \if \draftwatermark@tempb b%
    \relax
  \else\if \draftwatermark@tempb m%
    \addtolength\@tempdimb{-0.5\ht\@tempboxa}%
  \else\if \draftwatermark@tempb t%
    \addtolength\@tempdimb{-\ht\@tempboxa}%
  \else
    \PackageError{draftwatermark}{%
      Illegal anchor directive `\draftwatermark@tempb'}%
        {Anchoring to top side.}%
  \fi\fi\fi
  \put(\@tempdima,\@tempdimb){\usebox\@tempboxa}%
}

\newcommand\draftwatermark@print[1]{%
  \ifdraftwatermark@stamp
    \draftwatermark@printwm{#1}%
  \fi}
\ifdraftwatermark@firstpageonly
  \AddToHookNext{shipout/background}{%
    \draftwatermark@print{\draftwatermark@markcmd}}%
\else
  \AddToHook{shipout/background}{%
    \draftwatermark@print{\draftwatermark@markcmd}}%
\fi
\endinput
%%
%% End of file `draftwatermark.sty'.