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authorKarl Berry <karl@freefriends.org>2019-11-30 22:16:45 +0000
committerKarl Berry <karl@freefriends.org>2019-11-30 22:16:45 +0000
commit855bcb7aa33f468a9bd1e50617084a784e6a397a (patch)
tree3ae26790ca4a318084e1709b5f2dfe77069a623e /Master/texmf-dist/tex/latex/transparent
parent3820b8f6b5f78e1d878a74dfb643539cfc047855 (diff)
transparent (30nov19)
git-svn-id: svn://tug.org/texlive/trunk@52981 c570f23f-e606-0410-a88d-b1316a301751
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+%%
+%% This is file `transparent.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% transparent.dtx (with options: `package')
+%%
+%% This is a generated file.
+%%
+%% Project: transparent
+%% Version: 2019/11/29 v1.4
+%%
+%% Copyright (C)
+%% 2007 Heiko Oberdiek
+%% 2016-2019 Oberdiek Package Support Group
+%%
+%% This work may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either
+%% version 1.3c of this license or (at your option) any later
+%% version. This version of this license is in
+%% https://www.latex-project.org/lppl/lppl-1-3c.txt
+%% and the latest version of this license is in
+%% https://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".
+%%
+%% The Current Maintainers of this work are
+%% Heiko Oberdiek and the Oberdiek Package Support Group
+%% https://github.com/ho-tex/transparent/issues
+%%
+%%
+%% This work consists of the main source file transparent.dtx
+%% and the derived files
+%% transparent.sty, transparent.pdf, transparent.ins, transparent.drv,
+%% transparent-example.tex.
+%%
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{transparent}%
+ [2019/11/29 v1.4 Transparency via pdfTeX's color stack (HO)]%
+\RequirePackage{iftex}
+\ifpdf
+\else
+ \PackageWarningNoLine{transparent}{%
+ Loading aborted, because pdfTeX is not running in PDF mode%
+ }%
+ \expandafter\endinput
+\fi
+\ifx\pdfextension\@undefined
+ \let\TRP@pdfcolorstackinit\pdfcolorstackinit
+ \let\TRP@pdfpageresources\pdfpageresources
+ \let\TRP@pdfcolorstack\pdfcolorstack
+\else
+ \def\TRP@pdfcolorstackinit {\pdffeedback colorstackinit}
+ \protected\edef\TRP@pdfpageresources {\pdfvariable pageresources}
+ \protected\def\TRP@pdfcolorstack {\pdfextension colorstack}
+\fi
+\ifcsname TRP@pdfcolorstackinit\endcsname\else
+ \PackageWarningNoLine{transparent}{%
+ Your pdfTeX version does not support color stacks%
+ }%
+ \expandafter\endinput
+\fi
+\AtBeginDocument
+ {%
+ \ifcsname pgfutil@addpdfresource@extgs\endcsname
+ \let\TRP@addresource\relax
+ \pgfutil@addpdfresource@extgs{\TRP@list}%
+ \fi
+ }
+\RequirePackage{auxhook}
+\AddLineBeginAux{%
+ \string\providecommand{\string\transparent@use}[1]{}%
+}
+\gdef\TRP@list{/TRP1<</ca 1/CA 1>>}
+\def\transparent@use#1{%
+ \@ifundefined{TRP#1}{%
+ \g@addto@macro\TRP@list{%
+ /TRP#1<</ca #1/CA #1>>%
+ }%
+ \expandafter\gdef\csname TRP#1\endcsname{/TRP#1 gs}%
+ }{%
+ % #1 is already known, nothing to do
+ }%
+}
+\AtBeginDocument{%
+ \TRP@addresource
+ \let\transparent@use\@gobble
+}
+\def\TRP@addresource{%
+ \begingroup
+ \edef\x{\endgroup
+ \TRP@pdfpageresources{%
+ \the\TRP@pdfpageresources
+ /ExtGState<<\TRP@list>>%
+ }%
+ }%
+ \x
+}
+\newif\ifTRP@rerun
+\xdef\TRP@colorstack{%
+ \TRP@pdfcolorstackinit page direct{/TRP1 gs}%
+}
+\newcommand*{\transparent}[1]{%
+ \begingroup
+ \dimen@=#1\p@\relax
+ \ifdim\dimen@>\p@
+ \dimen@=\p@
+ \fi
+ \ifdim\dimen@<\z@
+ \dimen@=\z@
+ \fi
+ \ifdim\dimen@=\p@
+ \def\x{1}%
+ \else
+ \ifdim\dimen@=\z@
+ \def\x{0}%
+ \else
+ \edef\x{\strip@pt\dimen@}%
+ \edef\x{\expandafter\@gobble\x}%
+ \fi
+ \fi
+ \if@filesw
+ \immediate\write\@auxout{%
+ \string\transparent@use{\x}%
+ }%
+ \fi
+ \edef\x{\endgroup
+ \def\noexpand\transparent@current{\x}%
+ }%
+ \x
+ \transparent@set
+}
+\AtEndDocument{%
+ \ifTRP@rerun
+ \PackageWarningNoLine{transparent}{%
+ Rerun to get transparencies right%
+ }%
+ \fi
+}
+\def\transparent@current{/TRP1 gs}
+\def\transparent@set{%
+ \@ifundefined{TRP\transparent@current}{%
+ \global\TRP@reruntrue
+ }{%
+ \TRP@pdfcolorstack\TRP@colorstack push{%
+ \csname TRP\transparent@current\endcsname
+ }%
+ \aftergroup\transparent@reset
+ }%
+}
+\def\transparent@reset{%
+ \TRP@pdfcolorstack\TRP@colorstack pop\relax
+}
+\newcommand*{\texttransparent}[2]{%
+ \protect\leavevmode
+ \begingroup
+ \transparent{#1}%
+ #2%
+ \endgroup
+}
+\endinput
+%%
+%% End of file `transparent.sty'.