contrib/pyx.def

   1 %%
   2 %% This is file 'pyx.def',
   3 %%
   4 %% Copyright (C) 2003,2006 Michael Schindler <m-schindler@users.sourceforge.net>
   5 %%
   6 %% this file is based on `dvips.def' from the Standard LaTeX `Graphics Bundle',
   7 %% available via ftp from CTAN
   8 %%
   9 %% `pyx.def' may be distributed under the terms of the LaTeX Project Public
  10 %% License, as described in lppl.txt in the base LaTeX distribution.
  11 %% Either version 1.0 or, at your option, any later version.
  12 %%
  13 %%
  14 % TODO: - documentation
  15 %
  16 \ProvidesFile{pyx.def}
  17         [2006/05/17 driver-dependant file]
  18
  19 % %%%%%%  auxiliary macros  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% <<<
  20 % used in DEF file only:
  21 % check if #1 is in [0,1]
  22 %
  23 \def\c@lor@arg#1{%
  24   \dimen@#1\p@
  25   \ifdim\dimen@<\z@\dimen@\maxdimen\fi
  26   \ifdim\dimen@>\p@
  27     \PackageError{color}{Argument `#1' not in range [0,1]}\@ehd
  28   \fi}
  29 %
  30 % >>>
  31
  32 % %%%%%%  (1a) gray, cmyk, rgb and RGB colors  %%%%%%%%%%%%%%%%%%%%%%%%%%% <<<
  33 % used in color.sty:  \color@gray, cmyk, rgb, RGB, hsb
  34 % these commands are created with \csname as a
  35 % combination of 'color@' and 'gray'/'cmyk'/'rgb'/'RGB'/'hsb'
  36 % in color.sty by \@undeclaredcolor
  37 % gray, cmyk, rgb, hsb all take numbers in [0,1] as first argument(s)
  38 % RGB takes numbers in [0,255] as first arguments
  39 %
  40 \def\color@gray#1#2{%
  41   \c@lor@arg{#2}%       % check the argument
  42   \edef#1{gray #2}%     % prepare for command
  43   }
  44 %
  45 \def\color@cmyk#1#2{\c@lor@@cmyk#2\@@#1} % \@@ is only a separator for the arguments!
  46 \def\c@lor@@cmyk#1,#2,#3,#4\@@#5{%
  47   \c@lor@arg{#4}%
  48   \c@lor@arg{#1}%
  49   \c@lor@arg{#2}%
  50   \c@lor@arg{#3}%
  51   \edef#5{cmyk #1 #2 #3 #4}%    #5 is always \current@color (only once a \tempa)
  52   }
  53 %
  54 \def\color@rgb#1#2{\c@lor@@rgb#2\@@#1}
  55 \def\c@lor@@rgb#1,#2,#3\@@#4{%
  56   \c@lor@arg{#1}%
  57   \c@lor@arg{#2}%
  58   \c@lor@arg{#3}%
  59   \edef#4{rgb #1 #2 #3}%
  60   }
  61 %
  62 \def\color@RGB#1#2{\c@lor@@RGB#2\@@#1}
  63 \def\c@lor@@RGB#1,#2,#3\@@#4{%
  64  \c@lor@RGB@rgb{#1}\@tempa                % renormalise
  65  \c@lor@RGB@rgb{#2}\@tempb
  66  \c@lor@RGB@rgb{#3}\@tempc
  67  \c@lor@@rgb\@tempa,\@tempb,\@tempc\@@#4%  % call with normalised values
  68 }
  69 \def\c@lor@RGB@rgb#1#2{%
  70   \dimen@#1\p@
  71   \divide\dimen@\@cclv         % divide by 255
  72   \edef#2{\strip@pt\dimen@}}   % strip the number
  73 %
  74 \def\color@hsb#1#2{\c@lor@@hsb#2\@@#1}
  75 \def\c@lor@@hsb#1,#2,#3\@@#4{%
  76   \c@lor@arg{#1}%
  77   \c@lor@arg{#2}%
  78   \c@lor@arg{#3}%
  79   \edef#4{hsb #1 #2 #3}% this is the string defining the color in the special.
  80 %                      % it is stored in the variable \current@color
  81   }
  82 %% >>>
  83 % %%%%%%  (1b) "texnamed" colors  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% <<<
  84 % used in color.sty: \color@named \col@...
  85 % like above with the use of \csname
  86 %
  87 \def\color@named#1#2{\c@lor@@named#2,,\@@#1}
  88 \def\c@lor@@named#1,#2,#3\@@#4{%
  89   \@ifundefined{col@#1}%
  90     {\PackageError{color}{Undefined color `#1'}\@ehd}%
  91   {\edef#4{texnamed #1}}%   % arguments 2,3 are thrown away? Maybe an error detection mechanism
  92   } % \col@#1 is defined by \define@color@named
  93 \def\current@color{texnamed Black}
  94 \def\define@color@named#1#2{% for \DefineNamedColor only
  95   \expandafter\let\csname col@#1\endcsname\@nnil}
  96 % >>>
  97 % %%%%%%  (1c) "pyxcolor" colors  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% <<<
  98 %
  99 % use with \textcolor[pyxcolor]{Name}
 100 % where Name has to be defined in PyX as 'color.cmyk.Name', 'color.rgb.red', ...
 101 % Attention! PyX has to do the error detection if the color is not defined!
 102 %
 103 \def\color@pyx#1#2{\c@olor@@pyx#2\@@#1}
 104 \def\c@olor@@pyx#1\@@#2{%
 105   \edef#2{pyxcolor #1}}
 106 % >>>
 107 % %%%%%%  (1) colors general  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% <<<
 108 %
 109 % \set@color is called by \@(un)declaredcolor in color.sty
 110 % This is the starting string of the special
 111 %
 112 \def\set@color{%
 113  \special{PyX:color_begin \current@color
 114  }\aftergroup\reset@color} % the 'group' is the one in \@textcolor: arguments 1 and 3
 115 \def\reset@color{\special{PyX:color_end}}
 116 %
 117 % BACKGROUND COLOR is disabled
 118 \def\set@page@color{\PackageError{color}{Please adjust the pagecolor in PyX, not in LaTeX!}}
 119 % >>>
 120
 121 % %%%%%%  (2) eps-file inclusion %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% <<<
 122 %
 123 \def\Ginclude@eps#1{%
 124  \message{<#1>}%
 125   \bgroup
 126   \def\@tempa{!}%
 127   \dimen@=0.996264009963\Gin@req@width
 128   \@tempdima=0.996264009963\Gin@req@height
 129   \special{PyX:epsinclude\space
 130     file=\Gin@base\Gin@ext\space
 131     llx=\Gin@llx\space
 132     lly=\Gin@lly\space
 133     urx=\Gin@urx\space
 134     ury=\Gin@ury\space
 135     \ifx\Gin@scalex\@tempa\else width=\strip@pt\dimen@\space\fi
 136     \ifx\Gin@scaley\@tempa\else height=\strip@pt\@tempdima\space\fi
 137     \ifGin@clip clip=1\fi}%
 138   \egroup}
 139 %
 140 % bmp, oztex, pntg, pict file inclusions:
 141 % not available anymore
 142 % \Ginclude@bmp eventually used in graphics(x).sty
 143 % \Ginclude@pntg eventually used in graphics(x).sty
 144 % \Ginclude@pict eventually used in graphics(x).sty
 145 %
 146 \def\Ginclude@bmp#1{%
 147   \PackageError{color}{bmp file inclusion is not supported in PyX. Please use eps files.}}
 148 \def\Ginclude@pntg#1{
 149   \PackageError{color}{pntg file inclusion is not supported in PyX. Please use eps files.}}
 150 \def\Ginclude@pict#1{
 151   \PackageError{color}{pict file inclusion is not supported in PyX. Please use eps files.}}
 152 %
 153 % general stuff
 154 %
 155 %\def\Gin@PS@raw#1{\special{ps: #1}}
 156 %\def\Gin@PS@restored#1{\special{" #1}}
 157 %\def\Gin@PS@literal@header#1{\AtBeginDvi{\special{! #1}}}
 158 %\def\Gin@PS@file@header#1{\AtBeginDvi{\special{header=#1}}}
 159 %
 160 \def\Gin@extensions{.eps,.ps}
 161 \@namedef{Gin@rule@.ps}#1{{eps}{.ps}{#1}}
 162 \@namedef{Gin@rule@.eps}#1{{eps}{.eps}{#1}}
 163 \@namedef{Gin@rule@*}#1{{eps}{\Gin@ext}{#1}}
 164 %
 165 % >>>
 166
 167 % %%%%%%  (3) rotations  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% <<<
 168 \def\Grot@start{\special{PyX:rotate_begin \Grot@angle}}
 169 \def\Grot@end{\special{PyX:rotate_end}}
 170 % >>>
 171
 172 % %%%%%%  (4) scalings  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% <<<
 173 %
 174 \def\Gscale@start{\special{PyX:scale_begin \Gscale@x\space \Gscale@y}}
 175 \def\Gscale@end{\special{PyX:scale_end}}
 176 % >>>
 177 \endinput
 178
 179 % vim:foldmethod=marker:foldmarker=<<<,>>>
 180 % vim:syntax=tex
 181
 182 %% End of file `pyx.def'.