NeXTSTEP 3.3.4.17 [SPARC, PA-RISC]/nextstep33_risc.iso/NextLibrary/TeX/tex/inputs/psfig.tex

Text File | 1995-02-07 | 9.8 KB | 391 lines

% Psfig/TeX Release 1.2
% dvips version
%
% All software, documentation, and related files in this distribution of
% psfig/tex are Copyright 1987, 1988 Trevor J. Darrell
%
% Permission is granted for use and non-profit distribution of psfig/tex
% providing that this notice be clearly maintained, but the right to
% distribute any portion of psfig/tex for profit or as part of any commercial
% product is specifically reserved for the author.
%
% $Header: psfig.tex,v 1.9 88/01/08 17:42:01 trevor Exp $
% $Source: $
%
% Thanks to Greg Hager (GDH) and Ned Batchelder for their contributions
% to this project.
%
\catcode`\@=11\relax
\newwrite\@unused
\def\typeout#1{{\let\protect\string\immediate\write\@unused{#1}}}
\typeout{psfig/tex 1.2-dvips}


%% Here's how you define your figure path.  Should be set up with null
%% default and a user useable definition.

\def\figurepath{./}
\def\psfigurepath#1{\edef\figurepath{#1}}

%
% @psdo control structure -- similar to Latex @for.
% I redefined these with different names so that psfig can
% be used with TeX as well as LaTeX, and so that it will not
% be vunerable to future changes in LaTeX's internal
% control structure,
%
\def\@nnil{\@nil}
\def\@empty{}
\def\@psdonoop#1\@@#2#3{}
\def\@psdo#1:=#2\do#3{\edef\@psdotmp{#2}\ifx\@psdotmp\@empty \else
    \expandafter\@psdoloop#2,\@nil,\@nil\@@#1{#3}\fi}
\def\@psdoloop#1,#2,#3\@@#4#5{\def#4{#1}\ifx #4\@nnil \else
       #5\def#4{#2}\ifx #4\@nnil \else#5\@ipsdoloop #3\@@#4{#5}\fi\fi}
\def\@ipsdoloop#1,#2\@@#3#4{\def#3{#1}\ifx #3\@nnil
       \let\@nextwhile=\@psdonoop \else
      #4\relax\let\@nextwhile=\@ipsdoloop\fi\@nextwhile#2\@@#3{#4}}
\def\@tpsdo#1:=#2\do#3{\xdef\@psdotmp{#2}\ifx\@psdotmp\@empty \else
    \@tpsdoloop#2\@nil\@nil\@@#1{#3}\fi}
\def\@tpsdoloop#1#2\@@#3#4{\def#3{#1}\ifx #3\@nnil
       \let\@nextwhile=\@psdonoop \else
      #4\relax\let\@nextwhile=\@tpsdoloop\fi\@nextwhile#2\@@#3{#4}}
%
%
\def\psdraft{
    \def\@psdraft{0}
    %\typeout{draft level now is \@psdraft \space . }
}
\def\psfull{
    \def\@psdraft{100}
    %\typeout{draft level now is \@psdraft \space . }
}
\psfull
\newif\if@prologfile
\newif\if@postlogfile
\newif\if@noisy
\def\pssilent{
    \@noisyfalse
}
\def\psnoisy{
    \@noisytrue
}
\psnoisy
%%% These are for the option list.
%%% A specification of the form a = b maps to calling \@p@@sa{b}
\newif\if@bbllx
\newif\if@bblly
\newif\if@bburx
\newif\if@bbury
\newif\if@height
\newif\if@width
\newif\if@rheight
\newif\if@rwidth
\newif\if@clip
\newif\if@verbose
\def\@p@@sclip#1{\@cliptrue}

%%% GDH 7/26/87 -- changed so that it first looks in the local directory,
%%% then in a specified global directory for the ps file.

\def\@p@@sfile#1{\def\@p@sfile{null}%
            \openin1=#1
        \ifeof1\closein1%
               \openin1=\figurepath#1
            \ifeof1\typeout{Error, File #1 not found}
            \else\closein1
                \edef\@p@sfile{\figurepath#1}%
                        \fi%
         \else\closein1%
               \def\@p@sfile{#1}%
         \fi}
\def\@p@@sfigure#1{\def\@p@sfile{null}%
            \openin1=#1
        \ifeof1\closein1%
               \openin1=\figurepath#1
            \ifeof1\typeout{Error, File #1 not found}
            \else\closein1
                \def\@p@sfile{\figurepath#1}%
                        \fi%
         \else\closein1%
               \def\@p@sfile{#1}%
         \fi}

\def\@p@@sbbllx#1{
        %\typeout{bbllx is #1}
        \@bbllxtrue
        \dimen100=#1
        \edef\@p@sbbllx{\number\dimen100}
}
\def\@p@@sbblly#1{
        %\typeout{bblly is #1}
        \@bbllytrue
        \dimen100=#1
        \edef\@p@sbblly{\number\dimen100}
}
\def\@p@@sbburx#1{
        %\typeout{bburx is #1}
        \@bburxtrue
        \dimen100=#1
        \edef\@p@sbburx{\number\dimen100}
}
\def\@p@@sbbury#1{
        %\typeout{bbury is #1}
        \@bburytrue
        \dimen100=#1
        \edef\@p@sbbury{\number\dimen100}
}
\def\@p@@sheight#1{
        \@heighttrue
        \dimen100=#1
           \edef\@p@sheight{\number\dimen100}
        %\typeout{Height is \@p@sheight}
}
\def\@p@@swidth#1{
        %\typeout{Width is #1}
        \@widthtrue
        \dimen100=#1
        \edef\@p@swidth{\number\dimen100}
}
\def\@p@@srheight#1{
        %\typeout{Reserved height is #1}
        \@rheighttrue
        \dimen100=#1
        \edef\@p@srheight{\number\dimen100}
}
\def\@p@@srwidth#1{
        %\typeout{Reserved width is #1}
        \@rwidthtrue
        \dimen100=#1
        \edef\@p@srwidth{\number\dimen100}
}
\def\@p@@ssilent#1{
        \@verbosefalse
}
\def\@p@@sprolog#1{\@prologfiletrue\def\@prologfileval{#1}}
\def\@p@@spostlog#1{\@postlogfiletrue\def\@postlogfileval{#1}}
\def\@cs@name#1{\csname #1\endcsname}
\def\@setparms#1=#2,{\@cs@name{@p@@s#1}{#2}}
%
% initialize the defaults (size the size of the figure)
%
\def\ps@init@parms{
        \@bbllxfalse \@bbllyfalse
        \@bburxfalse \@bburyfalse
        \@heightfalse \@widthfalse
        \@rheightfalse \@rwidthfalse
        \def\@p@sbbllx{}\def\@p@sbblly{}
        \def\@p@sbburx{}\def\@p@sbbury{}
        \def\@p@sheight{}\def\@p@swidth{}
        \def\@p@srheight{}\def\@p@srwidth{}
        \def\@p@sfile{}
        \def\@p@scost{10}
        \def\@sc{}
        \@prologfilefalse
        \@postlogfilefalse
        \@clipfalse
        \if@noisy
            \@verbosetrue
        \else
            \@verbosefalse
        \fi
}
%
% Go through the options setting things up.
%
\def\parse@ps@parms#1{
         \@psdo\@psfiga:=#1\do
           {\expandafter\@setparms\@psfiga,}}
%
% Compute bb height and width
%
\newif\ifno@bb
\newif\ifnot@eof
\newread\ps@stream
\def\bb@missing{
    \if@verbose{
        \typeout{psfig: searching \@p@sfile \space  for bounding box}
    }\fi
    \openin\ps@stream=\@p@sfile
    \no@bbtrue
    \not@eoftrue
    \catcode`\%=12
    \loop
        \read\ps@stream to \line@in
        \global\toks200=\expandafter{\line@in}
        \ifeof\ps@stream \not@eoffalse \fi
        %\typeout{ looking at :: \the\toks200 }
        \@bbtest{\toks200}
        \if@bbmatch\not@eoffalse\expandafter\bb@cull\the\toks200\fi
    \ifnot@eof \repeat
    \catcode`\%=14
}
\catcode`\%=12
\newif\if@bbmatch
\def\@bbtest#1{\expandafter\@a@\the#1%%BoundingBox:\@bbtest\@a@}
\long\def\@a@#1%%BoundingBox:#2#3\@a@{\ifx\@bbtest#2\@bbmatchfalse\else\@bbmatchtrue\fi}
\long\def\bb@cull#1 #2 #3 #4 #5 {
    \dimen100=#2 bp\edef\@p@sbbllx{\number\dimen100}
    \dimen100=#3 bp\edef\@p@sbblly{\number\dimen100}
    \dimen100=#4 bp\edef\@p@sbburx{\number\dimen100}
    \dimen100=#5 bp\edef\@p@sbbury{\number\dimen100}
    \no@bbfalse
}
\catcode`\%=14
%
\def\compute@bb{
        \no@bbfalse
        \if@bbllx \else \no@bbtrue \fi
        \if@bblly \else \no@bbtrue \fi
        \if@bburx \else \no@bbtrue \fi
        \if@bbury \else \no@bbtrue \fi
        \ifno@bb \bb@missing \fi
        \ifno@bb \typeout{FATAL ERROR: no bb supplied or found}
            \no-bb-error
        \fi
        %
        \count203=\@p@sbburx
        \count204=\@p@sbbury
        \advance\count203 by -\@p@sbbllx
        \advance\count204 by -\@p@sbblly
        \edef\@bbw{\number\count203}
        \edef\@bbh{\number\count204}
        %\typeout{ bbh = \@bbh, bbw = \@bbw }
}
%
% \in@hundreds performs #1 * (#2 / #3) correct to the hundreds,
%    then leaves the result in @result
%
\def\in@hundreds#1#2#3{\count240=#2 \count241=#3
             \count100=\count240    % 100 is first digit #2/#3
             \divide\count100 by \count241
             \count101=\count100
             \multiply\count101 by \count241
             \advance\count240 by -\count101
             \multiply\count240 by 10
             \count101=\count240    %101 is second digit of #2/#3
             \divide\count101 by \count241
             \count102=\count101
             \multiply\count102 by \count241
             \advance\count240 by -\count102
             \multiply\count240 by 10
             \count102=\count240    % 102 is the third digit
             \divide\count102 by \count241
             \count200=#1\count205=0
             \count201=\count200
            \multiply\count201 by \count100
             \advance\count205 by \count201
             \count201=\count200
            \divide\count201 by 10
            \multiply\count201 by \count101
            \advance\count205 by \count201
            %
             \count201=\count200
            \divide\count201 by 100
            \multiply\count201 by \count102
            \advance\count205 by \count201
            %
             \edef\@result{\number\count205}
}
\def\compute@wfromh{
        % computing : width = height * (bbw / bbh)
        \in@hundreds{\@p@sheight}{\@bbw}{\@bbh}
        %\typeout{ \@p@sheight * \@bbw / \@bbh, = \@result }
        \edef\@p@swidth{\@result}
        %\typeout{w from h: width is \@p@swidth}
}
\def\compute@hfromw{
        % computing : height = width * (bbh / bbw)
        \in@hundreds{\@p@swidth}{\@bbh}{\@bbw}
        %\typeout{ \@p@swidth * \@bbh / \@bbw = \@result }
        \edef\@p@sheight{\@result}
        %\typeout{h from w : height is \@p@sheight}
}
\def\compute@handw{
        \if@height
            \if@width
            \else
                \compute@wfromh
            \fi
        \else
            \if@width
                \compute@hfromw
            \else
                \edef\@p@sheight{\@bbh}
                \edef\@p@swidth{\@bbw}
            \fi
        \fi
}
\def\compute@resv{
        \if@rheight \else \edef\@p@srheight{\@p@sheight} \fi
        \if@rwidth \else \edef\@p@srwidth{\@p@swidth} \fi
}
%
% Compute any missing values
\def\compute@sizes{
    \compute@bb
    \compute@handw
    \compute@resv
}
%
% \psfig
% usage : \psfig{file=, height=, width=, bbllx=, bblly=, bburx=, bbury=,
%            rheight=, rwidth=, clip=}
%
% "clip=" is a switch and takes no value, but the `=' must be present.
\def\psfig#1{\vbox {
    % do a zero width hard space so that a single
    % \psfig in a centering enviornment will behave nicely
    %{\setbox0=\hbox{\ }\ \hskip-\wd0}
    %
    \ps@init@parms
    \parse@ps@parms{#1}
    \compute@sizes
    %
    \ifnum\@p@scost<\@psdraft{
        \if@verbose{
            \typeout{psfig: including \@p@sfile \space }
        }\fi
        %
        \special{ps::[begin]     \@p@swidth \space \@p@sheight \space
                \@p@sbbllx \space \@p@sbblly \space
                \@p@sbburx \space \@p@sbbury \space
                startTexFig \space }
        \if@clip{
            \if@verbose{
                \typeout{(clip)}
            }\fi
            \special{ps:: doclip \space }
        }\fi
        \if@prologfile
            \special{ps: plotfile \@prologfileval \space } \fi
        \special{ps: plotfile \@p@sfile \space }
        \if@postlogfile
            \special{ps: plotfile \@postlogfileval \space } \fi
        \special{ps::[end] endTexFig \space }
        % Create the vbox to reserve the space for the figure
        \vbox to \@p@srheight true sp{
            \hbox to \@p@srwidth true sp{
                \hss
            }
        \vss
        }
    }\else{
        % draft figure, just reserve the space and print the
        % path name.
        \vbox to \@p@srheight true sp{
        \vss
            \hbox to \@p@srwidth true sp{
                \hss
                \if@verbose{
                    \@p@sfile
                }\fi
                \hss
            }
        \vss
        }
    }\fi
}}
\def\psglobal{\typeout{psfig: PSGLOBAL is OBSOLETE; use psprint -m instead}}
\catcode`\@=12\relax