%% xypdf-f.tex from $Id: xypdf-f.doc,v $

%%

%% Xy-pic ``Frame extension'' PDF backend support.

%% Copyright (c) 1999-1999 Ross Moore <ross@mpce.mq.edu.au>

%%

%% This file is part of the Xy-pic package for graphs and diagrams in TeX.

%% See the companion README and INSTALL files for further information.

%% Copyright (c) 1991-1999 Kristoffer H. Rose <krisrose@brics.dk>

%%

%% The Xy-pic package is free software; you can redistribute it and/or modify

%% it under the terms of the GNU General Public License as published by the

%% Free Software Foundation; either version 2 of the License, or (at your

%% option) any later version.

%%

%% The Xy-pic package is distributed in the hope that it will be useful, but

%% WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY

%% or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License

%% for more details.

%%

%% You should have received a copy of the GNU General Public License along

%% with this package; if not, write to the Free Software Foundation, Inc.,

%% 675 Mass Ave, Cambridge, MA 02139, USA.

%%

%% As a special exception, you may use this file and all files derived

%% from it without restrictions. This special exception was added with

%% version 3.7 of Xy-pic.

%%

\expandafter\ifx\csname xypdf-floaded\endcsname\empty

 \message{not reloaded}\endinput \fi

\expandafter\let\csname xypdf-floaded\endcsname=\empty \xycatcodes

\xydef@\installPDFframes@{%

 \let\framed@body@@=\xyPDFframed@body@

 \let\circled@x@@=\xyPDFcircled@x@

 \let\ellipsed@x@@=\xyPDFellipsed@x@

 \installPDFfills@

 \xyuncatcodes}

\xydef@\UsePDFframes{\installPDFframes@}

\xydef@\NoPDFframes{\UnloadFrames@}

\xydef@\xyPDFframed@body@{\DN@{\framed@body@}%

 \ifx\framehfill\frm@solidh@@

 \DN@{\xyPDFframed@oval@\xyPDFoval@Special}%

 \else\ifdim\R@=\z@\else

 \ifx\framehfill\frm@dashh@@

 \DN@{\xyPDFframed@oval@\xyPDFdashoval@Special}%

 \else\ifx\framehfill\frm@doth@@

 \DN@{\xyPDFframed@oval@\xyPDFdotoval@Special}%

 \fi\fi

 \fi\fi \next@ }

\xydef@\xyPDFframed@oval@#1{\vglue\U@c

 \hbox{\hglue\L@c\xypdfoval@#1\hglue\R@c}\vglue\D@c}

\xydef@\xyPDFcircled@x@{\DN@{\xyPDFcircled@x@@\xyPDFcirc@Special}%

 \ifx\framehfill\frm@doth@@

 \DN@{\xyPDFcircled@x@@\xyPDFdotcirc@Special}%

 \else\ifx\framehfill\frm@dashh@@

 \DN@{\xyPDFcircled@x@@\xyPDFdashcirc@Special}%

 \fi\fi \next@ }

\xydef@\xyPDFcircled@x@@#1{\vglue2\R@

 \hbox{\hglue2\R@\xypdfcircle@#1\hglue2\R@}%

 \vglue2\R@}

\xydef@\xyPDFellipsed@x@#1#2{%

 \DN@{\xyPDFellipsed@x@@\xyPDFcirc@Special}%

 \ifx\framehfill\frm@doth@@

 \DN@{\xyPDFellipsed@x@@\xyPDFdotcirc@Special}%

 \else\ifx\framehfill\frm@dashh@@

 \DN@{\xyPDFellipsed@x@@\xyPDFdashcirc@Special}%

 \fi\fi \next@{#1}{#2}}

\xydef@\xyPDFellipsed@x@@#1#2#3{\vglue #3\vglue #3\relax

 \hbox{\L@c = #2\relax \R@c=\L@c \D@c = #3\relax \U@c=\D@c 

 \hglue#2\hglue#2\relax\xypdfellipse@#1\hglue#2\hglue#2\relax}%

 \vglue #3\vglue #3\relax}

\xydef@\xyPDFdashhfill@{{\SemiDirectionChar=95 \Direction=3072 \xyPDFdash@}}

\xydef@\xyPDFdashvfill@{{\SemiDirection=31 \Direction=1023 \xyPDFdash@}}

\xydef@\xypdfoval@#1{%

 \dimen@=\L@c \advance\dimen@\R@c

 \dimen@ii=\U@c \advance\dimen@ii\D@c 

 \ifdim\dimen@ii<\dimen@ \relax \dimen@=\dimen@ii\fi \divide\dimen@\tw@

 \ifdim\R@>\dimen@ \relax \R@=\dimen@ \fi

 \D@c=-\D@c \L@c=-\L@c 

 \edef\tmp@{\expandafter\removePT@\the\R@

 \space\expandafter\removePT@\the\R@c 

 \space\expandafter\removePT@\the\D@c 

 \space\expandafter\removePT@\the\L@c 

 \space\expandafter\removePT@\the\U@c }%

 \expandafter#1\expandafter{\tmp@}}

\xydef@\xypdfcircle@#1{\dimen@=\R@

 \edef\tmp@{\expandafter\removePT@\the\dimen@}%

 \expandafter#1\expandafter{\tmp@}}

\xydef@\xypdfellipse@#1{\edef\tmp@{%

 \expandafter\removePT@\the\U@c \space

 \expandafter\removePT@\the\D@c \space

 \expandafter\removePT@\the\L@c \space

 \expandafter\removePT@\the\R@c }%

 \expandafter#1\expandafter{\tmp@}}

\xydef@\xyPDFoval@Special#1{\PDFmacro@{#1 ov}}%%%%<<<---- here

\xydef@\xyPDFcirc@Special#1{\PDFmacro@{#1 ox}}%%%%<<<---- here

\xydef@\xyPDFdotcirc@Special#1{\PDFmacro@{#1 ot}}%%%%<<<---- here

\xydef@\xyPDFdashcirc@Special#1{\PDFmacro@{#1 od}}%%%%<<<---- here

\xydef@\xyPDFdotoval@Special#1{\PDFmacro@{#1 vt}}%%%%<<<---- here

\xydef@\xyPDFdashoval@Special#1{\PDFmacro@{#1 vd}}%%%%<<<---- here

\xydef@\xyPDFfilledRegion#1#2{\setboxz@h{\lower\D@c\vbox{%

 \vglue\U@c\hbox{#1#2\empty\hglue\L@c\hglue\R@c}\vglue\D@c}}%

 \ht\z@=\z@ \dp\z@=\z@ \wd\z@=\z@ \boxz@}

\xydef@\filledRectangle@PDF{%

 \xyPDFfilledRegion{\xypdfoval@\xyPDFfilloval@Special}}

\xydef@\filledCircle@PDF#1{{\R@c=\R@ \L@c=\R@ \U@c=\R@ \D@c=\R@

 \xyPDFfilledRegion{\xypdfcircle@\xyPDFfillcirc@Special}#1}}

\xydef@\filledEllipse@PDF{%

 \xyPDFfilledRegion{\xypdfellipse@\xyPDFfillellipse@Special}}

\xydef@\filledOval@PDF{%

 \xyPDFfilledRegion{\xypdfoval@\xyPDFfilloval@Special}}

\xydef@\frame@emph@PDF#1{\filled@{#1}\relax}

\xydef@\installPDFfills@{%

 \let\frame@emph@@=\frame@emph@PDF

 \let\filledRectangle@@=\filledRectangle@PDF

 \let\filledOval@@=\filledOval@PDF

 \let\filledCircle@@=\filledCircle@PDF

 \let\filledEllipse@@=\filledEllipse@PDF

}

\xydef@\xyPDFfilloval@Special#1#2{%

 \ifx#2\relax\PDFmacro@{#1 sfo}%%%%%<<<---- here

 \else\PDFmacro@{#1 fo}\fi}%%%%<<<---- here

\xydef@\xyPDFfillcirc@Special#1#2{%

 \ifx#2\relax\PDFmacro@{#1 sfc}%%%%%<<<---- here

 \else\PDFmacro@{#1 fc}\fi}%%%%<<<---- here

\xydef@\xyPDFfillellipse@Special#1#2{%

 \ifx#2\relax\PDFmacro@{#1 sfe}%%%%%<<<---- here

 \else\PDFmacro@{#1 fe}\fi}%%%%<<<---- here

\endinput