scalerel (28feb13)

git-svn-id: svn://tug.org/texlive/trunk@29261 c570f23f-e606-0410-a88d-b1316a301751

1 files changed, 88 insertions, 0 deletions

diff --git a/Master/texmf-dist/tex/latex/scalerel/scalerel.sty b/Master/texmf-dist/tex/latex/scalerel/scalerel.sty
new file mode 100644
index 00000000000..58552198bc9
--- /dev/null
+++ b/Master/texmf-dist/tex/latex/scalerel/scalerel.sty
@@ -0,0 +1,88 @@
+\ProvidesPackage{scalerel}[2013/02/27]
+%% Copyright 2013 Steven B. Segletes
+%
+% 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 1.3c 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 Steven B. Segletes.
+
+\usepackage{calc}
+\usepackage{tikz}
+\global\newlength\thesrwidth
+\global\newlength\thesrheight
+\global\newlength\srblobheight
+\global\newlength\srblobdepth
+\global\newlength\mnxsrwidth
+\newsavebox{\prebox}
+
+\newcommand\scalerel{\@ifstar{\scalerelplain}{\scalerelplus}}
+
+\newcommand\scalerelplain[3][99in]{%
+  \sbox{\prebox}{$#2$}%
+  \setbox0\hbox{$#3$}%
+  \setlength\srblobheight{\ht0+\dp0}%
+  \setlength\srblobdepth{\dp0}%
+  \setbox0\hbox{$#2$}%
+  \setlength\thesrwidth{\wd0*\ratio{\srblobheight}{\ht0+\dp0}}%
+  \setlength\thesrheight{\ht0*\ratio{\srblobheight}{\ht0+\dp0}}%
+  \setlength\mnxsrwidth{#1}%
+  \ifdim\thesrwidth>\mnxsrwidth\setlength\thesrwidth{\mnxsrwidth}\fi%
+  \raisebox{-\srblobdepth+\dp0*\ratio{\srblobheight}{\ht0+\dp0}}%
+           {\resizebox{\thesrwidth}{\thesrheight}{\usebox{\prebox}}}%
+}
+\newcommand\scalerelplus[3][99in]{\scalerelplain[#1]{#2}{#3}#3}
+
+\newcommand\stretchrel{\@ifstar{\stretchrelplain}{\stretchrelplus}}
+
+\newcommand\stretchrelplain[3][10000]{%
+  \sbox{\prebox}{$#2$}%
+  \setbox0\hbox{$#3$}%
+  \setlength\srblobheight{\ht0+\dp0}%
+  \setlength\srblobdepth{\dp0}%
+  \setbox0\hbox{$#2$}%
+  \setlength\thesrwidth{\wd0}%
+  \setlength\thesrheight{\ht0*\ratio{\srblobheight}{\ht0+\dp0}}%
+  \setlength\mnxsrwidth{\thesrheight*100/#1}
+  \ifdim\thesrwidth<\mnxsrwidth\setlength\thesrwidth{\mnxsrwidth}\fi%
+  \raisebox{-\srblobdepth+\dp0*\ratio{\srblobheight}{\ht0+\dp0}}%
+           {\resizebox{\thesrwidth}{\thesrheight}{\usebox{\prebox}}}%
+}
+
+\newcommand\stretchrelplus[3][10000]{\stretchrelplain[#1]{#2}{#3}#3}
+
+\newcommand\scaleto[3][99in]{%
+  \sbox{\prebox}{$#2$}%
+  \setlength\srblobheight{#3}%
+  \setlength\srblobdepth{0pt}%
+  \setbox0\hbox{$#2$}%
+  \setlength\thesrwidth{\wd0*\ratio{\srblobheight}{\ht0+\dp0}}%
+  \setlength\thesrheight{\ht0*\ratio{\srblobheight}{\ht0+\dp0}}%
+  \setlength\mnxsrwidth{#1}%
+  \ifdim\thesrwidth>\mnxsrwidth\setlength\thesrwidth{\mnxsrwidth}\fi%
+  \setlength\srblobdepth{\dp0*\ratio{\srblobheight}{\ht0+\dp0}}%
+  \raisebox{-\srblobdepth+\dp0*\ratio{\srblobheight}{\ht0+\dp0}}%
+           {\resizebox{\thesrwidth}{\thesrheight}{\usebox{\prebox}}}%
+}
+
+\newcommand\stretchto[3][10000]{%
+  \sbox{\prebox}{$#2$}%
+  \setlength\srblobheight{#3}%
+  \setlength\srblobdepth{0pt}%
+  \setbox0\hbox{$#2$}%
+  \setlength\thesrwidth{\wd0}%
+  \setlength\thesrheight{\ht0*\ratio{\srblobheight}{\ht0+\dp0}}%
+  \setlength\mnxsrwidth{\thesrheight*100/#1}
+  \ifdim\thesrwidth<\mnxsrwidth\setlength\thesrwidth{\mnxsrwidth}\fi%
+  \setlength\srblobdepth{\dp0*\ratio{\srblobheight}{\ht0+\dp0}}%
+  \raisebox{-\srblobdepth+\dp0*\ratio{\srblobheight}{\ht0+\dp0}}%
+           {\resizebox{\thesrwidth}{\thesrheight}{\usebox{\prebox}}}%
+}
+
+\endinput