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% Copyright (C) 2012 by Paul Gaborit
%
% This file may be distributed and/or modified
%
% 1. under the LaTeX Project Public License and/or
% 2. under the GNU Public License.
\NeedsTeXFormat{LaTeX2e}[1994/06/01]
\def\ocgxversion{0.5}
\ProvidesPackage{ocgx}[2012/11/14 v\ocgxversion{} manage OCG in PDF document]
\RequirePackage{ocg-p}
%%%% small patch to ocg.sty %%%%
% called from the aux file
% \def\@ocg@makeknown#1#2#3{% #1: OCG name, #2: OC id, #3: on/off
% \@ifundefined{OCG#2}{%
% %\message{OCG#2}%
% \expandafter\gdef\csname OCG#2\endcsname{#1}%
% \immediate\pdfobj{<< /Type /OCG /Name (#1) >>}% new ocg
% \xdef\@ocg@curocg{\the\pdflastobj\space 0 R}% reference to id
% % *** PATCH ***
% \expandafter\xdef\csname OCGpdfobj#2\endcsname{\@ocg@curocg}
% % *** END OF PATCH ***
% \xdef\@ocg@ocgs{\@ocg@ocgs\space\@ocg@curocg}% list of all OCGs in "first defined" order
% \ifnum#3=1 %on
% \xdef\@ocg@ocgson{\@ocg@ocgson\space\@ocg@curocg}% list of all default-on OCGs
% \else%
% \xdef\@ocg@ocgsoff{\@ocg@ocgsoff\space\@ocg@curocg}% list of all default-off OCGs
% \fi%
% \xdef\@ocg@layersnames{%
% \@ocg@layersnames\space/OC#2\space\@ocg@curocg% name-to-id mapping
% }%
% }{%
% %\message{OCG#2 reopened}%
% % layer reopened
% }%
% }
%%%% END OF PATCH %%%%
\csname ocgx@end:ENDOFOCGS\endcsname
\def\ocgx@listOCG#1 {%
\unless\ifcsname ocgx@end:#1\endcsname
\ifcsname OCGpdfobj#1\endcsname
\expandafter\def\expandafter\ocgx@list\expandafter{%
\ocgx@list
\csname OCGpdfobj#1\endcsname\space}%
\fi%
\expandafter\ocgx@listOCG
\fi
}
\long\def\switchocg#1#2{%
\def\ocgx@list{}%
\ocgx@listOCG#1 ENDOFOCGS %
\leavevmode%
\pdfstartlink user {%
/Subtype /Link
/A << /S/SetOCGState /State [/Toggle \ocgx@list] >>
/Border [0 0 0]
}%
#2\pdfendlink%
}
\long\def\showocg#1#2{%
\def\ocgx@list{}%
\ocgx@listOCG#1 ENDOFOCGS %
\leavevmode%
\pdfstartlink user {%
/Subtype/Link
/A << /S/SetOCGState
/State [/ON \ocgx@list] >>
/Border [0 0 0]
}%
#2\pdfendlink%
}
\long\def\hideocg#1#2{%
\def\ocgx@list{}%
\ocgx@listOCG#1 ENDOFOCGS %
\leavevmode%
\pdfstartlink user {%
/Subtype/Link
/A << /S/SetOCGState
/State [/OFF \ocgx@list] >>
/Border [0 0 0]
}%
#2\pdfendlink%
}
\long\def\actionsocg#1#2#3#4{%
\def\ocgx@list{}%
\ocgx@listOCG#1 ENDOFOCGS %
\edef\ocgx@toswitch{\ocgx@list}%
%
\def\ocgx@list{}%
\ocgx@listOCG#2 ENDOFOCGS %
\edef\ocgx@toshow{\ocgx@list}%
%
\def\ocgx@list{}%
\ocgx@listOCG#3 ENDOFOCGS %
\edef\ocgx@tohide{\ocgx@list}%
%
\leavevmode%
\pdfstartlink user{%
/Subtype/Link
/A << /S/SetOCGState
/State [/Toggle \ocgx@toswitch /ON \ocgx@toshow /OFF \ocgx@tohide] >>
/Border [0 0 0]
}%
#4\pdfendlink%
}
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