%% FILE: setspace.sty in SYS2.TEX.PUB.ISULATEX.STYLES
%% AUTHOR: Erica M. S. Harris
%% DATE: April 1990
%% DESCR: LaTeX Document style option "setspace"
%% Usage: \documentstyle[...,setspace,...]{...}
%% Based on the doublespace option created by Stephen Page.
%%
%% This style option provides commands and environments for doing
%% double and one-and-a-half spacing based on pt size.
%%
%% Single spacing is the default.
%%
%% Three commands, \doublespacing, \onehalfspacing, and
%% \singlespacing, are for use in the preamble to set the overall
%% spacing for the document. If a different spacing is required then
%% the \setstretch{baselinestretch} command can be used in the
%% preamble to set the baselinestretch appropriately. The default
%% spacing with this style option is single spacing.
%%
%% Three environments, singlespace, onehalfspace, and doublespace,
%% allow the spacing to be changed within the document. Both the
%% onehalfspace and doublespace environments are intended to increase
%% the spacing, so the onehalfspace environment should not be used in
%% a double spaced document. If an increased spacing different from
%% one-and-a-half or double spacing is required then the spacing
%% environment can be used. The spacing environment takes one
%% argument which is the larger baselinestretch to use,
%% e.g., \begin{spacing}{2.5}.
%%
%% \footins is adjusted the same as \parskip - appears to work. Lose
%% stretch parts but don't consider that to be crucial
%%
%% Removed code for altering spacing before and after displayed
%% equations - just looked too much.
%%
%% MODS:
%%
%% PLEASE REPORT ANY BUGS
%%
%% Old Documentation follows:
%% 1. A new environment "singlespace" is provided, within which single
%% spacing will apply.
%% JFL - changed so that it works in regular text and so that
%% vertical space before and after is correctly computed
%% 2. Double spacing is turned off within footnotes and floats (figures
%% and tables).
%% 3. Proper double spacing happens below tabular environments and in
%% other places where LaTeX uses a strut.
%% 4. Slightly more space is inserted before footnotes.
%% 5. JFL - fixes spacing before and after displayed math
%%
%%
%% mods: Jean-Francois Lamy
%%
[email protected]
%%
[email protected]
%%
%% POSSIBLE BUGS:
%% . Increasing struts may possibly cause some other obscure part of
%% formatting to fall over.
%% . \begin{singlespace}\begin{quote} produces the wrong spacing before
%% the quote (extra glue is inserted).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%---Set up double spacing
\def\doublespacing{\ifcase \@ptsize \relax % 10pt
\def\baselinestretch{1.667}
\or % 11pt
\def\baselinestretch{1.618}
\or % 12pt
\def\baselinestretch{1.655}
\fi}
%\doublespacing % the default
\def\onehalfspacing{\ifcase \@ptsize \relax % 10pt
\def\baselinestretch{1.25}
\or % 11pt
\def\baselinestretch{1.213}
\or % 12pt
\def\baselinestretch{1.241}
\fi}
\def\singlespacing{\def\baselinestretch{1}}
\def\setstretch#1{\renewcommand{\baselinestretch}{#1}}
%---Stretch the baseline BEFORE calculating the strut size. This improves
% spacing below tabular environments etc., probably...
% Comments are welcomed.
\ifx\selectfont\undefined\gdef\@setsize#1#2#3#4{\@nomath#1\let\@currsize#1 %
\baselineskip #2\baselineskip\baselinestretch\baselineskip%
\parskip\baselinestretch\parskip%
\setbox\strutbox\hbox{\vrule height.7\baselineskip
depth.3\baselineskip width\z@}%
\skip\footins\baselinestretch\skip\footins%
\normalbaselineskip\baselineskip#3#4}\else
\gdef\@setsize#1#2#3#4{\@nomath#1\size{#4}{#2}\selectfont%
\let\@currsize#1\baselineskip\baselinestretch\baselineskip%
\parskip\baselinestretch\parskip%
\skip\footins\baselinestretch\skip\footins}\fi
%---Increase the space between last line of text and footnote rule.
%\skip\footins 20pt plus4pt minus4pt
%---Reset baselinestretch within footnotes and floats.
\def\@xfloat#1[#2]{\ifhmode \@bsphack\@floatpenalty -\@Mii\else
\@floatpenalty-\@Miii\fi\def\@captype{#1}\ifinner
\@parmoderr\@floatpenalty\z@
\else\@next\@currbox\@freelist{\@tempcnta\csname ftype@#1\endcsname
\multiply\@tempcnta\@xxxii\advance\@tempcnta\sixt@@n
\@tfor \@tempa :=#2\do
{\if\@tempa h\advance\@tempcnta \@ne\fi
\if\@tempa t\advance\@tempcnta \tw@\fi
\if\@tempa b\advance\@tempcnta 4\relax\fi
\if\@tempa p\advance\@tempcnta 8\relax\fi
}\global\count\@currbox\@tempcnta}\@fltovf\fi
\global\setbox\@currbox\vbox\bgroup
\def\baselinestretch{1}\@normalsize
\boxmaxdepth\z@
\hsize\columnwidth \@parboxrestore}
\long\def\@footnotetext#1{\insert\footins{\def\baselinestretch{1}\footnotesize
\interlinepenalty\interfootnotelinepenalty
\splittopskip\footnotesep
\splitmaxdepth \dp\strutbox \floatingpenalty \@MM
\hsize\columnwidth \@parboxrestore
\edef\@currentlabel{\csname p@footnote\endcsname\@thefnmark}\@makefntext
{\rule{\z@}{\footnotesep}\ignorespaces
#1\strut}}}
% A single spaced quote (say) is done by surrounding singlespace with quote.
%
\def\singlespace{%
\vskip\parskip%
\vskip\baselineskip%
\def\baselinestretch{1}%
\ifx\@currsize\normalsize\@normalsize\else\@currsize\fi%
\vskip-\parskip%
\vskip-\baselineskip}
\def\endsinglespace{\par}
% spacing, doublespace and onehalfspace all are meant to INCREASE the
% spacing (i.e. calling onehalfspace from within doublespace will not
% produce a graceful transition between spacings)
%
\def\spacing#1{\par%
\def\baselinestretch{#1}%
\ifx\@currsize\normalsize\@normalsize\else\@currsize\fi}
\def\endspacing{\par%
\vskip \parskip%
\vskip \baselineskip%
}% \endgroup%
% \vskip -\parskip%
% \vskip -\baselineskip%
% \begingroup}
% one and a half spacing is 1.5 x pt size
\def\onehalfspace{\ifcase \@ptsize \relax % 10pt
\spacing{1.25}
\or % 11pt
\spacing{1.213}
\or % 12pt
\spacing{1.241}
\fi}
\let\endonehalfspace=\endspacing
% double spacing is 2 x pt size
\def\doublespace{\ifcase \@ptsize \relax % 10pt
\spacing{1.667}
\or % 11pt
\spacing{1.618}
\or % 12pt
\spacing{1.655}
\fi}
\let\enddoublespace=\endspacing
