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% \begin{macrocode}
\NeedsTeXFormat{LaTeX2e}[1996/06/01]
\ProvidesPackage{circledsteps}[2020/01/12 v1.3 Circled steps that you can reference]
\def\cstepsversion{v1.3}
% \end{macrocode}
%
% Copyright (c) 2019 Romano Giannetti
% Heavily helped by @marmot and other on
% https://tex.stackexchange.com/questions/7032/good-way-to-make-textcircled-numbers
% License: LPPL 1.3c
%
% \begin{macrocode}
\RequirePackage{pict2e}
\RequirePackage{picture}
\RequirePackage{pgfkeys} % for the pgfkeys
\pgfkeys{/csteps/.is family}
\pgfkeys{/csteps/inner ysep/.initial=4pt,
/csteps/inner xsep/.initial=4pt,
/csteps/inner color/.initial=none,
/csteps/outer color/.initial=none,
/csteps/fill color/.initial=none,
}
\DeclareOption{redblue}{
\pgfkeys{/csteps/inner color=red, /csteps/outer color=blue}%
}
\DeclareOption{legacy}{
\pgfkeys{/csteps/inner color=red, /csteps/outer color=blue}%
}
% end of options definitions
\ProcessOptions\relax
% thanks @egreg https://tex.stackexchange.com/a/523450/38080
\RequirePackage{etoolbox}
\newif\ifcstepsfilledovals\cstepsfilledovalsfalse
\@ifpackageloaded{picture}{\patchcmd\PcOrg@@oval}{\patchcmd\@oval}
{\pIIe@strokeGraph}
{\ifcstepsfilledovals\pIIe@fillGraph\else\pIIe@strokeGraph\fi}
{}{%
\PackageWarningNoLine{circledsteps}{%
Failed to patch either picture.sty or pict2e.sty:\MessageBreak
\space\space oval shapes will not be filled.
}
}
\newsavebox\csteps@CBox
\newlength\csteps@XLength \newlength\csteps@YLength \newlength\csteps@YDepth \newlength\csteps@tmplen
\def\csteps@CircledParam#1#2{\sbox\csteps@CBox{#2}%
\edef\csteps@none{none}%
\edef\csteps@outercolor{\pgfkeysvalueof{/csteps/outer color}}%
\edef\csteps@innercolor{\pgfkeysvalueof{/csteps/inner color}}%
\edef\csteps@fillcolor{\pgfkeysvalueof{/csteps/fill color}}%
\csteps@XLength=\wd\csteps@CBox\advance\csteps@XLength by\pgfkeysvalueof{/csteps/inner xsep}\relax
\csteps@tmplen=\pgfkeysvalueof{/csteps/inner ysep}\relax
\csteps@YDepth=\dp\csteps@CBox\advance\csteps@YDepth by 0.5\csteps@tmplen\relax
\csteps@YLength=\ht\csteps@CBox\advance\csteps@YLength by\dp\csteps@CBox\advance\csteps@YLength by\pgfkeysvalueof{/csteps/inner ysep}\relax
% \typeout{DBG:#2\space X:\the\csteps@XLength\space Y:\the\csteps@YLength\space D:\the\csteps@YDepth}%
% \typeout{DBG\space inner:\csteps@innercolor\space outer:\csteps@outercolor\space ARG2:#2}%
\raisebox{-#1\csteps@YDepth}{%
\ifdim\csteps@XLength>\csteps@YLength
\makebox[\csteps@XLength]{% X bigger than Y
\makebox(0,\csteps@YLength){%
\ifx\csteps@fillcolor\csteps@none\else
{\color{\csteps@fillcolor}%
\cstepsfilledovalstrue\put(0,0){\oval(\csteps@XLength,\csteps@YLength)}}%
\fi
\ifx\csteps@outercolor\csteps@none\else
\color{\csteps@outercolor}%
\fi
\put(0,0){\oval(\csteps@XLength,\csteps@YLength)}%
}%
\makebox(0,\csteps@YLength){%
\put(-.5\wd\csteps@CBox,0){%
\ifx\csteps@innercolor\csteps@none
#2\relax%
\else
\textcolor{\csteps@innercolor}{#2}%
\fi
}%
}}%
\else
\makebox[\csteps@YLength]{%
\makebox(0,\csteps@YLength){%
\ifx\csteps@fillcolor\csteps@none\else
{\color{\csteps@fillcolor}%
\put(0,0){\circle*{\csteps@YLength}}}%
\fi
\ifx\csteps@outercolor\csteps@none\else
\color{\csteps@outercolor}%
\fi
\put(0,0){\circle{\csteps@YLength}}%
}%
\makebox(0,\csteps@YLength){%
\put(-.5\wd\csteps@CBox,0){%
\ifx\csteps@innercolor\csteps@none
#2\relax%
\else
\textcolor{\csteps@innercolor}{#2}%
\fi
}%
}}%
\fi
}%
}
% \end{macrocode}
% Main commands:
% \begin{macrocode}
\newcommand{\CircledParamOpts}[3]{%
\begingroup
\pgfkeys{/csteps/.cd, #1}%
\ifmmode
\mathchoice{%
\csteps@CircledParam{#2}{$\displaystyle #3$}%
}%
{%
\csteps@CircledParam{#2}{$\textstyle #3$}%
}%
{%
\csteps@CircledParam{#2}{$\scriptstyle #3$}%
}%
{%
\csteps@CircledParam{#2}{$\scriptscriptstyle #3$}%
}%
\else
\csteps@CircledParam{#2}{#3}%
\fi
\endgroup
}
\newcommand{\Circled}[2][]{\CircledParamOpts{#1}{1}{#2}}
\newcommand{\CircledTop}[2][]{\CircledParamOpts{#1}{0}{#2}}
\newcommand{\CircledText}[2][]{%
\CircledParamOpts{inner color=none, outer color=none, #1}{1}{#2}%
}
% \end{macrocode}
% Automatic counters code
% \begin{macrocode}
\newcounter{cstepcnt}
\newcommand{\startcstep}{\setcounter{cstepcnt}{0}}
\newcommand{\resetcstep}{\setcounter{cstepcnt}{0}}
\newcommand{\cstep}{%
\refstepcounter{cstepcnt}%
\Circled{\scriptsize\arabic{cstepcnt}}%
}
\renewcommand{\thecstepcnt}{\arabic{cstepcnt}}
% \end{macrocode}
%
%
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