%-----------------------------------------------------------------------------------------------------------------------------------------------%
%	The MIT License (MIT)
%
%	Copyright (c) 2016 Jan Küster
%
%	Permission is hereby granted, free of charge, to any person obtaining a copy
%	of this software and associated documentation files (the "Software"), to deal
%	in the Software without restriction, including without limitation the rights
%	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
%	copies of the Software, and to permit persons to whom the Software is
%	furnished to do so, subject to the following conditions:
%	
%	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
%	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
%	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
%	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
%	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
%	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
%	THE SOFTWARE.
%
%-----------------------------------------------------------------------------------------------------------------------------------------------%

\newcommand{\squares}[2]{
	%reset counters
	\setcounter{a}{0}
	\setcounter{b}{0}
	\setcounter{c}{50}
	\begin{tikzpicture}[scale=3]
	\foreach \p/\t in {#1} {
		\setcounter{a}{\value{b}}
	    	\addtocounter{b}{\p}
	    	\square{\thea/100*#2}{\theb/100*#2}{\p\%}{\t}{thirdcol}
	}
	\end{tikzpicture}
}

\newcommand{\square}[5] {
 	\pgfmathparse{#1+0.5*(#2-#1)}
  	\let\midangle\pgfmathresult

	\draw[draw=sectcol] (0.4, \midangle) -- (0.6,\midangle);
	% slice
  	\filldraw[fill=#5!100,draw=bgcol!100, line width=3pt] (0,#1) -- (0.5,#1) -- (0.5,#2) -- (0,#2) -- cycle;
  	% outer label
  	\node[label=360:\colorbox{sectcol}{\textcolor{textcol}{#4}}] at (0.55,\midangle) {};
}