Add patched chronosys

See https://tex.stackexchange.com/questions/125548.

chronosys.tex

@@ -0,0 +1,71 @@
+% This is is the plain TeX file for the `chronosys' package.
+%
+% The maintener of this work is Mathieu Long.
+% email : [email protected]
+% the `chronosys' package consists in the 9 files :
+%  -- `docchronosys_en.tex' and `docchronosys_en.pdf' (english manual)
+%  -- `docchronosys_fr.tex' and `docchronosys_fr.pdf' (french manual)
+%  -- README
+%  -- `chronosys.tex' (file for plain TeX)
+%  -- `chronosyschr.tex' (main file of the `chronosys' package)
+%  -- `chronosys.sty' (file for LaTeX)
+%  -- `x-chronosys.tex' (file for ConTeXt)
+%
+% This work may be distributed and/or modified under the
+% conditions of the LaTeX Project Public License, either version 1.3
+% of this license or (at your option) any later version.
+% The latest version of this license is in
+%   http://www.latex-project.org/lppl.txt
+% and version 1.3 or later is part of all distributions of LaTeX
+% version 2005/12/01 or later.
+%
+% This work has the LPPL maintenance status `maintained'.
+% 
+% The Current Maintainer of this work is Mathieu Long.
+%
+% % % %
+%Changement de catcode
+\catcode`\@=11\relax
+%
+\unless\ifdefined\tikzpicture
+\catcode`\!=12\input tikz.tex\relax\fi 
+%
+\catcode`\!=11\relax
+%
+%DEFINITION DE \!CHR@VERIF
+\let\!chr@verif\relax
+%
+%CHARGEMENT DE CHRONOSYSCHR
+\input chronosyschr.tex\relax
+%
+%DEFINITION POUR MOTEUR DE DESSIN
+\def\!chrstarttikzpicture{\tikzpicture}\def\!chrstoptikzpicture{\endtikzpicture}%
+\!chrverif\def\!chrdraw{\draw}\!chrverif\def\!chrfill{\fill}\!chrverif\def\!chrfilldraw{\filldraw}%
+%
+% DEFINITION DES SSTEMES DE COLORISATION DU FOND DES EVENTS ET PERIODES
+\!chrverif\def\!chrperiodcolorbox#1{%
+\setbox\z@ \hbox{\kern2pt#1\kern2pt}%
+\dimen@i\dp\z@
+\advance\dimen@i\ht\z@ \advance\dimen@i 6pt\relax
+\dimen@ii\wd\z@
+\advance\dimen@ii 4pt\relax
+\setbox\@ne\hbox{{\color{\!chr@periodcolorbox}%
+\vrule height\dimen@i width\dimen@ii \relax%
+\kern-\dimen@ii}\box\z@}\raise0.5\dimen@ii\vbox to\z@{\box\@ne\vss}}%
+%
+%
+\!chrverif\def\!chreventcolorbox#1{%
+\setbox\z@ \hbox{\kern2pt#1\kern2pt}%
+\dimen@i\dp\z@
+\advance\dimen@i\ht\z@ 
+\dimen@ii\wd\z@
+\advance\dimen@ii 4pt\relax
+\setbox\@ne\hbox {{\color{\!chr@eventcolorbox}%
+\vrule height\dimen@i width\dimen@ii depth\z@\relax%
+\kern-\dimen@ii}\box\z@}\raise0.5\dimen@ii\vbox to\z@{\box\@ne\vss}}%
+%
+\!chrverif\let\!chrusecolor\color
+%
+\catcode`\!=12\relax
+\catcode`\@=12\relax
+\endinput