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% This file is part of pdfpc.
% Copyright (C) 2020 Evgeny Stambulchik
%
% This program is free software; you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation; either version 3 of the License, or
% (at your option) any later version.
%
% This program is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License along
% with this program; if not, write to the Free Software Foundation, Inc.,
% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
% -------------------------------------------------------------------------------------------
%
% Allow for defining some meta data and simple textual notes for use
% with the pdfpc presentation application <https://pdfpc.github.io>.
%
% -------------------------------------------------------------------------------------------
%
% Inspired by Carsten Brandt's <https://github.com/cebe/pdfpc-latex-notes>.
%
% -------------------------------------------------------------------------------------------
%
% Please report bugs and other problems as well as suggestions for improvements
% to the issue tracker at github <https://github.com/pdfpc/pdfpc/>
%
% -------------------------------------------------------------------------------------------
%
\ProvidesPackage{pdfpc}[2021/02/06 v0.6.0 PDFPC]
\NeedsTeXFormat{LaTeX2e}
%
% Require additional packages needed by \sty{pdfpc}:
\RequirePackage{kvoptions}
\RequirePackage{xstring}
\RequirePackage{iftex}
\RequirePackage{hyperxmp}
%
\SetupKeyvalOptions{
family=PDFPC,
prefix=PDFPC@
}
%
\DeclareStringOption{duration}
\DeclareStringOption{starttime}
\DeclareStringOption{endtime}
\DeclareStringOption{enduserslide}
\DeclareStringOption{lastminutes}
\DeclareBoolOption{hidenotes}
\DeclareBoolOption{overridenote}
\DeclareStringOption{notesposition}
\DeclareBoolOption[false]{disablemarkdown}
\DeclareStringOption{defaulttransition}
\DeclareDefaultOption{\@unknownoptionerror}
%
\ProcessKeyvalOptions*
%
\ifx\PDFPC@duration\@empty
\else
\IfInteger{\PDFPC@duration}{}
{\PackageWarningNoLine{pdfpc}{`duration' should be an integer}}%
\fi
%
\ifx\PDFPC@enduserslide\@empty
\else
\IfInteger{\PDFPC@enduserslide}{}
{\PackageWarningNoLine{pdfpc}{`enduserslide' should be an integer}}%
\fi
%
\ifx\PDFPC@lastminutes\@empty
\else
\IfInteger{\PDFPC@lastminutes}{}
{\PackageWarningNoLine{pdfpc}{`lastminutes' should be an integer}}%
\fi
%
\ifPDFPC@overridenote
\renewcommand{\note}[2][]{%
\IfStrEq{#1}{item}%
% Imitate a bullet
{\pdfpcnote{* #2}}%
{\pdfpcnote{#2}}%
}%
\fi
%
\def\pdfpc@notespositionauto{auto}%
\ifx\PDFPC@notesposition\@empty%
\def\PDFPC@notesposition{auto}%
\fi%
%
% Guesswork for beamer/pgfpages notes
\ifx\PDFPC@notesposition\pdfpc@notespositionauto%
\def\PDFPC@notesposition{none}%
\def\pdfpc@onepaperheight{\paperheight}%
\def\pdfpc@twopaperheight{2\paperheight}%
\def\pdfpc@onepaperwidth{\paperwidth}%
\def\pdfpc@twopaperwidth{2\paperwidth}%
\def\pdfpc@pagecenter{\pgfpoint{.5\paperwidth}{.5\paperheight}}%
\ifx\pgfpageoptiontwoheight\pdfpc@onepaperheight%
\ifx\pgfpageoptiontwowidth\pdfpc@twopaperwidth%
\ifx\pgfpageoptionfirstcenter\pdfpc@pagecenter%
\def\PDFPC@notesposition{right}%
\else%
\def\PDFPC@notesposition{left}%
\fi%
\fi%
\fi%
\ifx\pgfpageoptiontwoheight\pdfpc@twopaperheight%
\ifx\pgfpageoptiontwowidth\pdfpc@onepaperwidth%
\ifx\pgfpageoptionfirstcenter\pdfpc@pagecenter%
\def\PDFPC@notesposition{top}%
\else%
\def\PDFPC@notesposition{bottom}%
\fi%
\fi%
\fi%
\fi%
%
% Our schema
\newcommand*{\pdfpc@schema}{%
\hyxmp@add@to@xml{%
______<rdf:Description xmlns:pdfpc="https://github.com/pdfpc/pdfpc">^^J%
}%
\hyxmp@add@simple{pdfpc:Duration}{\PDFPC@duration}%
\hyxmp@add@simple{pdfpc:StartTime}{\PDFPC@starttime}%
\hyxmp@add@simple{pdfpc:EndTime}{\PDFPC@endtime}%
\hyxmp@add@simple{pdfpc:EndUserSlide}{\PDFPC@enduserslide}%
\hyxmp@add@simple{pdfpc:LastMinutes}{\PDFPC@lastminutes}%
\hyxmp@add@simple{pdfpc:NotesPosition}{\PDFPC@notesposition}%
\ifPDFPC@disablemarkdown%
\hyxmp@add@simple{pdfpc:DisableMarkdown}{true}%
\else%
\hyxmp@add@simple{pdfpc:DisableMarkdown}{false}%
\fi
\hyxmp@add@simple{pdfpc:DefaultTransition}{\PDFPC@defaulttransition}%
\hyxmp@add@to@xml{%
______</rdf:Description>^^J%
}%
}
%
% Piggybacking on the hyperxmp schema...
\let\oldhyxmp@pdf@schema\hyxmp@pdf@schema
\renewcommand{\hyxmp@pdf@schema}{{\oldhyxmp@pdf@schema}{\pdfpc@schema}}
%
% Note command
\ifPDFPC@hidenotes%
\newcommand{\pdfpcnote}[1]{}%
\else%
\ifXeTeX%
\newcommand{\pdfpcnote}[1]{%
{%
\edef\\{\string\n}%
\special{pdf: ann width 0pt height 0pt depth 0pt%
<<%
/Subtype /Text%
/Contents (#1)%
/F 6%
>>%
}%
}%
\relax%
}%
\else%
\ifLuaTeX%
\protected\def\pdfannot {\pdfextension annot }%
\fi%
\newcommand{\pdfpcnote}[1]{%
{%
\edef\\{\string\n}%
\pdfannot width 0pt height 0pt depth 0pt {%
/Subtype /Text%
/Contents (#1)%
/F 6%
}%
}%
\relax%
}%
\fi%
\fi%
%
\endinput
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