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%% xytextures.tex from $Id: xytextures.doc,v 3.3 1996/12/18 09:41:45 ross Exp $
%%
%% Xy-pic ``Textures'' driver interface option.
%% Copyright (c) 1995-1996 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) 1991-1996 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.
%%
\ifx\xyloaded\undefined \input xy \fi
\xyprovide{textures}{Textures driver}{\stripRCS$Revision: 3.3 $}%
{Ross Moore}{ross@mpce.mq.edu.au}%
{Mathematics Department, Macquarie University, NSW~2109, Australia}
\xydef@\Textures@@#1{\dvimessage@{Textures}{#1}}
\newdriver{%
\xyaddsupport{color}\texturesColor@@
\xyaddsupport{crayon}\texturesCrayon@@
\xyaddsupport{ps}\texturesPS@@
\xyaddsupport{rotate}\texturesRotate@@
\xyaddsupport{line}\texturesLine@@
\xyaddsupport{frame}\texturesFrames@@
\xyaddsupport{tile}\texturesTiles@@
\xyaddsupport{cmtip}\relax
}
\xydef@\TexturesColor@push#1{\special{color push}\special{color #1}}
\xydef@\TexturesColours@{\texturesPStypes@
\let\xylocalColor@=\xystackcolor@
\let\xycolor@push=\TexturesColor@push
\def\xycolor@{\xycolor@@}%
\expandafter\ifx\csname xyps-psloaded\endcsname\empty\DN@{%
\xyinputorelse@{xyps-c}{\xydrivernoload@{ps-c}}%
\installPScolor@ }\else\DN@{}\fi \next@
\ifx\xycolor@@\xyNoColor@ \let\xycolor@@=\xycolor@raw@@\fi
\ifx\xycrayolaloaded\empty \DN@{\xystandardcolors@\texturesCrayon@@{}}%
\else\let\next@=\xystandardcolors@ \fi \next@
\let\xycolorwarning@=\relax \Textures@@{color}%
\let\texturesColor@@=\relax
\let\UnloadColor@@=\NoTexturesColor@
}
\xydef@\texturesColor@@{\TexturesColours@}
\xydef@\NoTexturesColor@{%
\let\xylocalColor@=\xyNoColor@@
\let\xycolor@=\xyNoColor@
\let\xycolorwarning@=\xycolorwarning@@
\let\texturesColor@@=\TexturesColours@
\let\UnloadColor@@=\UnloadColor@
}
\xydef@\texturesCrayon@@{\texturesColor@@\texturesCrayon@}
\xydef@\texturesCrayon@{\installCrayolaColors@}%
\xydef@\texturesPS@@{\texturesPS@}
\xydef@\texturesPSunload@{\UnloadPS@
\let\UnloadPS@@=\UnloadPS@
\let\texturesPS@@=\texturesPS@ }
\xydef@\texturesPStypes@{%
\xyinputorelse@{xyps-ps}{\xydrivernoload@{ps-ps}}%
\ifx\PSspecial@@\TexturesSpecial@\else
\let\PSspecial@@=\TexturesSpecial@
\let\PSmacro@@=\TexturesMacro@
\let\PSdict@@=\TexturesDict@
\let\PSraw@@=\TexturesRaw@
\let\PSinclude@@=\TexturesInclude@
\let\PSspecialdict@@=\TexturesSpecialDict@
\let\xyPSobeylines@@=\obeyTextureslines@
\Textures@@{PostScript}%
\fi \texturesCurrpt@ \XYpredict@ }
\xydef@\TexturesSpecial@#1{\firstPS@@\special{postscript #1}}
\xydef@\TexturesMacro@#1{\special{postscript {#1}xy}}
\xydef@\TexturesDict@#1{\special{prePostScript #1}}
\xydef@\TexturesSpecialDict@#1{\special{prePostScript #1}}
\xydef@\TexturesInclude@#1{\firstPS@@\special{prePostScriptfile #1}}
\xydef@\TexturesRaw@#1{\firstPS@@\special{rawpostscript #1}}%
{\catcode`\^^M=\active%
\gdef\next{\catcode`\^^M=\active \let^^M=\par%
\let\PSspecial@@=\TexturesDict@ \obeyspaces}}
\xylet@\obeyTextureslines@=\next
\xydef@\texturesCurrpt@{\let\xyPScurrpt@@=\texturesCurrpt@@}%
\xydef@\texturesCurrpt@@{\PSspecial@@{xyi}\PSraw@@{userdict begin xyx end}}
\xydef@\texturesPS@{\texturesPStypes@
\let\texturesPS@@=\relax
\let\UnloadPS@@=\texturesPSunload@
\let\installxyps@@=\relax \installxyps@ }
\xydef@\texturesRotate@@{\texturesRotate@}
\xydef@\texturesRotate@{\texturesPStypes@
\expandafter\ifx\csname xyps-psloaded\endcsname\empty\DN@{%
\xyinputorelse@{xyps-r}{\xydrivernoload@{ps-r}}%
\xyRotScale@@ \installPSrotscale@ }%
\else\DN@{\xydriverfail@{rotations are}\UnloadRotate@\relax}\fi
\next@}
\xydef@\texturesLine@@{\texturesLine@}
\xydef@\texturesLine@{\texturesPStypes@
\expandafter\ifx\csname xyps-psloaded\endcsname\empty\DN@{%
\xyinputorelse@{xyps-l}{\xydrivernoload@{ps-l}}%
\installPSline@ }%
\else\DN@{\xydriverfail@{line-widths are}\UnloadLine@\relax}\fi
\next@ }
\xydef@\texturesFrames@@{\texturesFrames@}
\xydef@\texturesFrames@{\texturesPStypes@
\expandafter\ifx\csname xyps-psloaded\endcsname\empty\DN@{%
\xyinputorelse@{xyps-f}{\xydrivernoload@{ps-f}}%
\installPSframes@ }%
\else\DN@{\xydriverfail@{frames are}\UnloadPSFrames@\relax}\fi
\next@ }
\xydef@\texturesTiles@@{\texturesTiles@}
\xydef@\texturesTiles@{\texturesPStypes@
\expandafter\ifx\csname xyps-psloaded\endcsname\empty\DN@{%
\xyinputorelse@{xyps-t}{\xydrivernoload@{ps-t}}%
\installPSpatterns@ \xystandardpatterns@}%
\else\DN@{\xydriverfail@{Patterns are}\UnloadPSpatterns@\relax}\fi
\next@ }
\xyendinput
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