% Copyright 2019 by Till Tantau
%
% This file may be distributed and/or modified
%
% 1. under the LaTeX Project Public License and/or
% 2. under the GNU Free Documentation License.
%
% See the file doc/generic/pgf/licenses/LICENSE for more details.


% pgf version is defined in \pgfversion in file
% generic/pgf/utilities/pgfrcs.code.tex

\def\xcolorversion{2.00}

\usepackage[version=latest]{pgf}

\usepackage{xkeyval,calc,listings,tikz,fp}

\usepackage{imakeidx}
\makeindex
\usepackage{hyperref}
\hypersetup{%
    colorlinks=false, % use true to enable colors below:
    linkcolor=blue,%red,
    filecolor=blue,%magenta,
    urlcolor=blue,%cyan,
    citecolor=blue,
    pdfborder=0 0 0,
}

% We need lots of libraries...
\usetikzlibrary{
  3d,
  arrows,
  arrows.spaced,
  arrows.meta,
  bending,
  babel,
  calc,
  fit,
  patterns,
  patterns.meta,
  plotmarks,
  shapes.geometric,
  shapes.misc,
  shapes.symbols,
  shapes.arrows,
  shapes.callouts,
  shapes.multipart,
  shapes.gates.logic.US,
  shapes.gates.logic.IEC,
  circuits.logic.US,
  circuits.logic.IEC,
  circuits.logic.CDH,
  circuits.ee.IEC,
  datavisualization,
  datavisualization.polar,
  datavisualization.formats.functions,
  er,
  automata,
  backgrounds,
  chains,
  topaths,
  trees,
  petri,
  mindmap,
  matrix,
  calendar,
  folding,
  fadings,
  shadings,
  spy,
  through,
  turtle,
  positioning,
  scopes,
  decorations.fractals,
  decorations.shapes,
  decorations.text,
  decorations.pathmorphing,
  decorations.pathreplacing,
  decorations.footprints,
  decorations.markings,
  shadows,
  lindenmayersystems,
  intersections,
  fixedpointarithmetic,
  fpu,
  svg.path,
  external,
  graphs,
  graphs.standard,
  quotes,
  math,
  angles,
  views,
  animations,
  rdf,
  perspective,
}

\usepackage{ifluatex}
\newif\ifgdccodebasic
\newif\ifgdccodeogdf

\ifluatex

  \usetikzlibrary{graphdrawing}
  \usegdlibrary{trees,circular,layered,examples,force,phylogenetics,routing}

  % Test whether C code is available:
  \directlua{
    if pcall(require,'pgf_gd_examples_c_SimpleDemoC') then
      tex.print('\string\\gdccodebasictrue')
    end
  }

  \ifgdccodebasic
    \usegdlibrary{pgf_gd_examples_c_SimpleDemoC,pgf_gd_examples_c_SimpleDemoCPlusPlus}

    % Test whether OGDF code is available:
    \directlua{
      if pcall(require,'pgf_gd_ogdf_c_SimpleDemoOGDF') then
        tex.print('\string\\gdccodeogdftrue')
      end
    }

    \ifgdccodeogdf
      \usegdlibrary{pgf_gd_ogdf_c_SimpleDemoOGDF,ogdf}
    \fi

  \fi

\fi

\def\LuaTeX{Lua\TeX}%


\newif\ifpgfmanualexternalize
\pgfmanualexternalizefalse
\ifpgfmanualexternalize
  \tikzexternalize[
    mode=list only,export=true,% simply skips EVERY picture -> good for debugging the text.
  ]{pgfmanual}

  \tikzifexternalizing{%
    \pgfkeys{/pdflinks/codeexample links=false}%
  }{}%
\fi


\usepackage[a4paper,left=2.25cm,right=2.25cm,top=2.5cm,bottom=2.5cm,nohead]{geometry}
\usepackage{amsmath,amssymb}
\usepackage{xxcolor}
\usepackage{pifont}

\ifluatex
%  \usepackage[no-math]{fontspec}
%  \usepackage{luatextra}

  % TT: I have commented luatextra since it loads fontspec, which
  % currently breaks "$\mathrm{\Omega}$" (nothing is
  % shown). Also, fontspec loads so much stuff, I'm not really sure
  % any of it is needed...

  % \filedescription is defined in expl3, required by fontspec,
  % required by luatextra. Needs to be \relaxed since
  % pgfmanual-en-macros.tex defines an environment named filedescription
  \let\filedescription\relax
  \usepackage[utf8]{luainputenc}
  % dvisvgm does not support OpenType fonts so we have to bite the bullet and
  % use T1 where quotes are weird.  In LuaTeX \outputmode=0 means DVI.
  \ifnum\outputmode=0
    \usepackage[T1]{fontenc}
  \fi
\else
  \usepackage[utf8]{inputenc}
  \usepackage[T1]{fontenc}
\fi

% Promote `Missing character` reports to full errors
% require texlive 2021 or above
\tracinglostchars=3

\graphicspath{{../../images/}}
\input{pgfmanual-en-macros}

\usepackage{todonotes}
\newcommand\todosp[2][]{%        % Stefan Pinnow
    \todo[
        disable,
        color=blue!40,
        #1]{#2}
}

\makeatletter
\renewcommand*\l@section[2]{%
  \ifnum \c@tocdepth >\z@
    \addpenalty\@secpenalty
    \addvspace{1.0em \@plus\p@}%
    \setlength\@tempdima{2.5em}%
    \begingroup
      \parindent \z@ \rightskip \@pnumwidth
      \parfillskip -\@pnumwidth
      \leavevmode \bfseries
      \advance\leftskip\@tempdima
      \hskip -\leftskip
      #1\nobreak\hfil \nobreak\hb@xt@\@pnumwidth{\hss #2}\par
    \endgroup
  \fi}
\renewcommand*\l@subsection{\@dottedtocline{2}{2.5em}{3.3em}}
\renewcommand*\l@subsubsection{\@dottedtocline{3}{5.8em}{4.2em}}
\def\@pnumwidth{2.2em}
\makeatother

%\includeonly{pgfmanual-en-library-profiler}

% Global styles:
\tikzset{
  every plot/.style={prefix=plots/pgf-},
  shape example/.style={
    color=black!30,
    draw,
    fill=yellow!30,
    line width=.5cm,
    inner xsep=2.5cm,
    inner ysep=0.5cm}
}

\index{Options for graphics|see{Graphic options and styles}}
\index{Styles for graphics|see{Graphic options and styles}}
\index{Options for packages|see{Package options}}
\index{Handlers for keys|see{Key handlers}}
\index{File|see{Packages and files}}
\index{Layout|see{Page layout}}
\index{Node|see{Predefined node}}
\index{Data formats|see{Formats}}


% Animations:

\tikzset{make snapshot if necessary}

% Detect changed labels
% by David Carlisle https://tex.stackexchange.com/a/169245
\makeatletter
\def\@testdef#1#2#3{%
  \def\reserved@a{#3}%
  \expandafter\ifx\csname #1@#2\endcsname\reserved@a\else
    \typeout{^^JLabel `#2' changed:^^J\meaning\reserved@a^^J\expandafter\meaning\csname #1@#2\endcsname^^J}%
    \@tempswatrue
  \fi}
\makeatother

%% -----------------------------------------------------------------------------
%\includeonly{
%%    pgfmanual-en-introduction,
%%    pgfmanual-en-tutorial,
%%    pgfmanual-en-tutorial-nodes,
%%    pgfmanual-en-tutorial-Euclid,
%%    pgfmanual-en-tutorial-chains,
%%    pgfmanual-en-tutorial-map,
%%    pgfmanual-en-guidelines,
%%    pgfmanual-en-installation,
%%    pgfmanual-en-license,
%%    pgfmanual-en-drivers,
%%    pgfmanual-en-tikz-design,
%%    pgfmanual-en-tikz-scopes,
%%    pgfmanual-en-tikz-coordinates,
%%    pgfmanual-en-tikz-paths,
%%    pgfmanual-en-tikz-actions,
%%    pgfmanual-en-tikz-arrows,
%%    pgfmanual-en-tikz-shapes,
%%    pgfmanual-en-tikz-pics,
%%    pgfmanual-en-tikz-graphs,
%%    pgfmanual-en-tikz-matrices,
%%    pgfmanual-en-tikz-trees,
%%    pgfmanual-en-tikz-plots,
%%    pgfmanual-en-tikz-transparency,
%%    pgfmanual-en-tikz-decorations,
%%    pgfmanual-en-tikz-transformations,
%%    pgfmanual-en-tikz-animations,
%%    pgfmanual-en-gd-overview,
%%    pgfmanual-en-gd-usage-tikz,
%%    pgfmanual-en-gd-usage-pgf,
%%    pgfmanual-en-gd-trees,
%%    pgfmanual-en-gd-layered,
%%    pgfmanual-en-gd-force,
%%    pgfmanual-en-gd-circular,
%%    pgfmanual-en-gd-phylogenetics,
%%    pgfmanual-en-gd-edge-routing,
%%%    pgfmanual-en-gd-ogdf,
%%    pgfmanual-en-gd-algorithm-layer,
%%    pgfmanual-en-gd-algorithms-in-c,
%%    pgfmanual-en-gd-display-layer,
%%    pgfmanual-en-gd-binding-layer,
%%    pgfmanual-en-library-angles,
%%    pgfmanual-en-library-arrows,
%%    pgfmanual-en-library-automata,
%%    pgfmanual-en-library-babel,
%%    pgfmanual-en-library-backgrounds,
%%    pgfmanual-en-library-calc,
%%    pgfmanual-en-library-calendar,
%%    pgfmanual-en-library-chains,
%%    pgfmanual-en-library-circuits,
%%    pgfmanual-en-library-decorations,
%%    pgfmanual-en-library-er,
%%    pgfmanual-en-library-external,
%%    pgfmanual-en-library-fadings,
%%    pgfmanual-en-library-fit,
%%    pgfmanual-en-library-fixedpoint,
%%    pgfmanual-en-library-fpu,
%%    pgfmanual-en-library-lsystems,
%%    pgfmanual-en-library-math,
%%    pgfmanual-en-library-matrices,
%%    pgfmanual-en-library-mindmaps,
%%    pgfmanual-en-library-folding,
%%    pgfmanual-en-library-patterns,
%%    pgfmanual-en-library-petri,
%%    pgfmanual-en-library-plot-handlers,
%%    pgfmanual-en-library-plot-marks,
%%    pgfmanual-en-library-profiler,
%%    pgfmanual-en-library-rdf,
%%    pgfmanual-en-library-shadings,
%%    pgfmanual-en-library-shadows,
%%    pgfmanual-en-library-shapes,
%%    pgfmanual-en-library-spy,
%%    pgfmanual-en-library-svg-path,
%%    pgfmanual-en-library-edges,
%%    pgfmanual-en-library-through,
%%    pgfmanual-en-library-trees,
%%    pgfmanual-en-library-turtle,
%%    pgfmanual-en-library-views,
%%    pgfmanual-en-dv-introduction,
%%    pgfmanual-en-dv-main,
%%    pgfmanual-en-dv-formats,
%%    pgfmanual-en-dv-axes,
%%    pgfmanual-en-dv-visualizers,
%%    pgfmanual-en-dv-stylesheets,
%%    pgfmanual-en-dv-polar,
%%    pgfmanual-en-dv-backend,
%%    pgfmanual-en-pgfkeys,
%%    pgfmanual-en-pgffor,
%%    pgfmanual-en-pgfcalendar,
%%    pgfmanual-en-pages,
%%    pgfmanual-en-xxcolor,
%%    pgfmanual-en-module-parser,
%%    pgfmanual-en-math-design,
%%    pgfmanual-en-math-parsing,
%%    pgfmanual-en-math-commands,
%%    pgfmanual-en-math-algorithms,
%%    pgfmanual-en-math-numberprinting,
%%    pgfmanual-en-oo,
%%    pgfmanual-en-base-design,
%%    pgfmanual-en-base-scopes,
%%    pgfmanual-en-base-points,
%%    pgfmanual-en-base-paths,
%%    pgfmanual-en-base-decorations,
%%    pgfmanual-en-base-actions,
%%    pgfmanual-en-base-arrows,
%%    pgfmanual-en-base-nodes,
%%    pgfmanual-en-base-matrices,
%%    pgfmanual-en-base-transformations,
%%    pgfmanual-en-base-patterns,
%%    pgfmanual-en-base-images,
%%    pgfmanual-en-base-external,
%%    pgfmanual-en-base-plots,
%%    pgfmanual-en-base-layers,
%%    pgfmanual-en-base-shadings,
%%    pgfmanual-en-base-transparency,
%%    pgfmanual-en-base-animations,
%%    pgfmanual-en-base-internalregisters,
%%    pgfmanual-en-base-quick,
%%    pgfmanual-en-pgfsys-overview,
%%    pgfmanual-en-pgfsys-commands,
%%    pgfmanual-en-pgfsys-paths,
%%    pgfmanual-en-pgfsys-protocol,
%%    pgfmanual-en-pgfsys-animations,
%}
%% -----------------------------------------------------------------------------


%%% Local Variables:
%%% mode: latex
%%% TeX-master: "pgfmanual"
%%% End:
