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%%
%% This is file `diagbox.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% diagbox.dtx (with options: `package')
%%
%% This is a generated file.
%%
%% Copyright (C) 2011 by Leo Liu <leoliu.pku@gmail.com>
%% --------------------------------------------------------------------------
%% 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.
%%
\NeedsTeXFormat{LaTeX2e}[1999/12/01]
\ProvidesPackage{diagbox}
[2011/11/23 v2.0 Making table heads with diagonal lines]
\RequirePackage{keyval}
\RequirePackage{pict2e}
\RequirePackage[nomessages]{fp}
\newbox\diagbox@boxa
\newbox\diagbox@boxb
\newbox\diagbox@boxm
\newdimen\diagbox@wd
\newdimen\diagbox@ht
\newdimen\diagbox@sepl
\newdimen\diagbox@sepr
\define@key{diagbox}{width}{%
\setlength{\diagbox@wd}{#1}}
\define@key{diagbox}{height}{%
\setlength{\diagbox@ht}{#1}}
\define@key{diagbox}{trim}{%
\@tfor\@reserveda:=#1\do{%
\ifcsname diagbox@sep\@reserveda\endcsname
\setlength{\csname diagbox@sep\@reserveda\endcsname}{\z@}%
\else
\PackageError{diagbox}{Unknown trim option `#1'.}{l, r, lr and rl are supported.}%
\fi}}
\define@key{diagbox}{dir}{%
\def\diagbox@dir{#1}%
\unless\ifcsname diagbox@dir@#1\endcsname
\PackageError{diagbox}{Unknown direction `#1'.}{NW, NE, SW, SE are supported.}%
\def\diagbox@dia{NW}%
\fi}
\let\diagbox@dir@SE\relax
\let\diagbox@dir@SW\relax
\let\diagbox@dir@NE\relax
\let\diagbox@dir@NW\relax
\def\diagbox@pict{%
\unitlength\p@
\begin{picture}
(\strip@pt\dimexpr\diagbox@wd-\diagbox@sepl-\diagbox@sepr\relax,\strip@pt\diagbox@ht)
(\strip@pt\diagbox@sepl,0)
\@nameuse{diagbox@\diagbox@part @pict@\diagbox@dir}
\end{picture}}
\def\diagbox@double@pict@SE{%
\put(0,0) {\makebox(0,0)[bl]{\box\diagbox@boxa}}
\put(\strip@pt\diagbox@wd,\strip@pt\diagbox@ht) {\makebox(0,0)[tr]{\box\diagbox@boxb}}
\Line(0,\strip@pt\diagbox@ht)(\strip@pt\diagbox@wd,0)}
\let\diagbox@double@pict@NW\diagbox@double@pict@SE
\def\diagbox@double@pict@NE{%
\put(0,\strip@pt\diagbox@ht) {\makebox(0,0)[tl]{\box\diagbox@boxa}}
\put(\strip@pt\diagbox@wd,0) {\makebox(0,0)[br]{\box\diagbox@boxb}}
\Line(0,0)(\strip@pt\diagbox@wd,\strip@pt\diagbox@ht)}
\let\diagbox@double@pict@SW\diagbox@double@pict@NE
\def\diagbox@double#1#2#3{%
\begingroup
\diagbox@wd=\z@
\diagbox@ht=\z@
\diagbox@sepl=\tabcolsep
\diagbox@sepr=\tabcolsep
\def\diagbox@part{double}%
\setkeys{diagbox}{dir=NW,#1}%
\setbox\diagbox@boxa=\hbox{%
\begin{tabular}{@{\hspace{\diagbox@sepl}}l@{}}#2\end{tabular}}%
\setbox\diagbox@boxb=\hbox{%
\begin{tabular}{@{}r@{\hspace{\diagbox@sepr}}}#3\end{tabular}}%
\ifdim\diagbox@wd=\z@
\ifdim\wd\diagbox@boxa>\wd\diagbox@boxb
\diagbox@wd=\dimexpr2\wd\diagbox@boxa+\diagbox@sepl+\diagbox@sepr\relax
\else
\diagbox@wd=\dimexpr2\wd\diagbox@boxb+\diagbox@sepl+\diagbox@sepr\relax
\fi
\fi
\ifdim\diagbox@ht=\z@
\diagbox@ht=\dimexpr\ht\diagbox@boxa+\dp\diagbox@boxa+\ht\diagbox@boxb+\dp\diagbox@boxb\relax
\fi
$\vcenter{\hbox{\diagbox@pict}}$%
\endgroup}
\def\diagbox@triple@setbox@NW#1#2#3{%
\setbox\diagbox@boxa=\hbox{%
\begin{tabular}{@{\hspace{\diagbox@sepl}}l@{}}#1\end{tabular}}%
\setbox\diagbox@boxm=\hbox{%
\begin{tabular}{@{\hspace{\diagbox@sepl}}l@{}}#2\end{tabular}}%
\setbox\diagbox@boxb=\hbox{%
\begin{tabular}{@{}r@{\hspace{\diagbox@sepr}}}#3\end{tabular}}}
\let\diagbox@triple@setbox@SW\diagbox@triple@setbox@NW
\def\diagbox@triple@setbox@SE#1#2#3{%
\setbox\diagbox@boxa=\hbox{%
\begin{tabular}{@{\hspace{\diagbox@sepl}}l@{}}#1\end{tabular}}%
\setbox\diagbox@boxm=\hbox{%
\begin{tabular}{@{}r@{\hspace{\diagbox@sepr}}}#2\end{tabular}}%
\setbox\diagbox@boxb=\hbox{%
\begin{tabular}{@{}r@{\hspace{\diagbox@sepr}}}#3\end{tabular}}}
\let\diagbox@triple@setbox@NE\diagbox@triple@setbox@SE
\def\diagbox@triple@pict@NW{%
\put(0,0) {\makebox(0,0)[bl]{\box\diagbox@boxa}}
\put(0,\y) {\makebox(0,0)[tl]{\box\diagbox@boxm}}
\put(\x,\y) {\makebox(0,0)[tr]{\box\diagbox@boxb}}
\Line(0,\yym)(\x,0)
\Line(\xm,\y)(\x,0)}
\def\diagbox@triple@pict@NE{%
\put(0,\y) {\makebox(0,0)[tl]{\box\diagbox@boxa}}
\put(\x,\y) {\makebox(0,0)[tr]{\box\diagbox@boxm}}
\put(\x,0) {\makebox(0,0)[br]{\box\diagbox@boxb}}
\Line(0,0)(\xxm,\y)
\Line(0,0)(\x,\yym)}
\def\diagbox@triple@pict@SW{%
\put(0,\y) {\makebox(0,0)[tl]{\box\diagbox@boxa}}
\put(0,0) {\makebox(0,0)[bl]{\box\diagbox@boxm}}
\put(\x,0) {\makebox(0,0)[br]{\box\diagbox@boxb}}
\Line(0,\ym)(\x,\y)
\Line(\xm,0)(\x,\y)}
\def\diagbox@triple@pict@SE{%
\put(0,0) {\makebox(0,0)[bl]{\box\diagbox@boxa}}
\put(\x,0) {\makebox(0,0)[br]{\box\diagbox@boxm}}
\put(\x,\y) {\makebox(0,0)[tr]{\box\diagbox@boxb}}
\Line(0,\y)(\xxm,0)
\Line(0,\y)(\x,\ym)}
\def\diagbox@triple#1#2#3#4{%
\begingroup
\diagbox@wd=\z@
\diagbox@ht=\z@
\diagbox@sepl=\tabcolsep
\diagbox@sepr=\tabcolsep
\def\diagbox@part{triple}%
\setkeys{diagbox}{dir=NW,#1}%
\@nameuse{diagbox@triple@setbox@\diagbox@dir}{#2}{#3}{#4}%
\edef\xa{\strip@pt\wd\diagbox@boxa}%
\edef\ya{\strip@pt\dimexpr\ht\diagbox@boxa+\dp\diagbox@boxa\relax}%
\edef\xb{\strip@pt\wd\diagbox@boxb}%
\edef\yb{\strip@pt\dimexpr\ht\diagbox@boxb+\dp\diagbox@boxb\relax}%
\edef\xm{\strip@pt\wd\diagbox@boxm}%
\edef\ym{\strip@pt\dimexpr\ht\diagbox@boxm+\dp\diagbox@boxm\relax}%
\FPneg\bi\yb
\FPadd\ci\xb\xm \FPneg\ci\ci
\FPmul\di\xm\yb
\FPadd\bj\ya\ym \FPneg\bj\bj
\FPneg\cj\xa
\FPmul\dj\xa\ym
\FPsub\u\dj\di
\FPupn{v}{bj ci * bi cj * -}%
\FPupn{delta}{bi dj * bj di * - cj ci - * 4 * %
v u + copy * %
- 2 swap root}%
\ifdim\diagbox@wd=\z@
\FPupn{x}{2 bj bi - delta v u - + / /}%
\diagbox@wd=\x\p@
\else
\edef\x{\strip@pt\diagbox@wd}%
\fi
\ifdim\diagbox@ht=\z@
\FPupn{y}{2 cj ci - delta v u + - / /}%
\diagbox@ht=\y\p@
\else
\edef\y{\strip@pt\diagbox@ht}%
\fi
\FPsub\xxm\x\xm
\FPsub\yym\y\ym
$\vcenter{\hbox{\diagbox@pict}}$%
\endgroup}
\newcommand\diagbox[3][]{%
\@ifnextchar\bgroup
{\diagbox@triple{#1}{#2}{#3}}{\diagbox@double{#1}{#2}{#3}}}
\expandafter\xdef\csname ver@slashbox.\@pkgextension\endcsname{9999/99/99}
\def\slashbox{%
\def\diagbox@slashbox@options{dir=SW,}%
\slashbox@}
\def\backslashbox{%
\def\diagbox@slashbox@options{dir=NW,}%
\slashbox@}
\newcommand\slashbox@[1][]{%
\ifx\relax#1\relax\else
\edef\diagbox@slashbox@options{%
\unexpanded\expandafter{\diagbox@slashbox@options}%
\unexpanded{width=#1,}}%
\fi
\slashbox@@}
\newcommand\slashbox@@[3][]{%
\edef\diagbox@slashbox@options{%
\unexpanded\expandafter{\diagbox@slashbox@options}%
\unexpanded{trim=#1,}}%
\expandafter\diagbox\expandafter[\diagbox@slashbox@options]{#2}{#3}}
\endinput
%%
%% End of file `diagbox.sty'.
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