diff -r 85428d871089 -r f58334ec3d1d talks/20091108-Riverside/xypdf-f.tex
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/talks/20091108-Riverside/xypdf-f.tex	Fri Oct 30 21:05:16 2009 +0000
@@ -0,0 +1,128 @@
+%% 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