\ProvidesFile{pdftex.def}[1997/03/19 v0.01b graphics/color for pdftex]

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%
%% LaTeX Colour and Graphics support for PDFTeX
%%
%% David Carlisle & Sebastian Rahtz
%%
%% To use this file you must add a pdftex option to the graphics
%% and color packages by adding the following line (without %%)
%%
%% \DeclareOption{pdftex}{\def\Gin@driver{pdftex.def}}
%%
%% to your existing graphics.cfg and color.cfg files.
%% If you also want to make this your default driver then edit the call
%% to \ExecuteOptions so that it says \ExecuteOptions{pdftex}.
%%
%% It may then be used by specifying the pdftex option to any of the
%% supported packages, for example:
%%
%% \usepackage[pdftex]{graphicx}
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


% Colour Support. The following models may be used.
% cmyk and  rgb are supported directly.
% RGB and gray are converted to rgb by this file.
% named is converted to cmyk by this file.
\def\c@lor@arg#1{%
  \dimen@#1\p@
  \ifdim\dimen@<\z@\dimen@\maxdimen\fi
  \ifdim\dimen@>\p@
    \PackageError{color}{Argument `#1' not in range [0,1]}\@ehd
  \fi}
\def\color@cmyk#1#2{\c@lor@@cmyk#2\@@#1}
\def\c@lor@@cmyk#1,#2,#3,#4\@@#5{%
  \c@lor@arg{#4}%
  \c@lor@arg{#1}%
  \c@lor@arg{#2}%
  \c@lor@arg{#3}%
  \edef#5{#1 #2 #3 #4 k #1 #2 #3 #4 K}%
  }
\def\color@gray#1#2{\c@lor@@rgb#2,#2,#2\@@#1}
\def\color@rgb#1#2{\c@lor@@rgb#2\@@#1}
\def\c@lor@@rgb#1,#2,#3\@@#4{%
  \c@lor@arg{#1}%
  \c@lor@arg{#2}%
  \c@lor@arg{#3}%
  \edef#4{#1 #2 #3 rg #1 #2 #3 RG}%
  }
\def\color@RGB#1#2{\c@lor@@RGB#2\@@#1}
\def\c@lor@@RGB#1,#2,#3\@@#4{%
 \c@lor@RGB@rgb{#1}\@tempa
 \c@lor@RGB@rgb{#2}\@tempb
 \c@lor@RGB@rgb{#3}\@tempc
 \c@lor@@rgb\@tempa,\@tempb,\@tempc\@@#4%
  }
\def\c@lor@RGB@rgb#1#2{%
  \dimen@#1\p@
  \divide\dimen@\@cclv
  \edef#2{\strip@pt\dimen@}}

\def\color@named#1#2{\c@lor@@named#2,,\@@#1}
\def\c@lor@@named#1,#2,#3\@@#4{%
  \@ifundefined{col@#1}%
    {\PackageError{color}{Undefined color `#1'}\@ehd}%
  {\edef#4{\csname col@#1\endcsname}}%
  }

\def\set@color{\pdfliteral{\current@color}\aftergroup\reset@color}
\def\reset@color{\pdfliteral{\current@color}}
\def\define@color@named#1#2{%
   \expandafter\edef\csname col@#1\endcsname{#2}}
\def\current@color{1 1 1 1 k 1 1 1 1 K}


% Need the `colorfix' modifications as no internal colour stack
% is maintained
%<*colorfix>
\AtBeginDocument{%
  \let\@ldc@l@r\color
  \def\color{\if@inlabel\leavevmode\fi\@ldc@l@r}%
  \let\@lduseb@x\usebox
  \def\usebox#1{\@lduseb@x{#1}\set@color}}
%</colorfix>


% Graphic inclusion.
% Currently only PNG bitmaps, but they may be scaled/rotated as usual
% by the graphics commands or keyword arguments.
\def\Gread@png#1{%
  \setbox\@tempboxa\hbox{\pdfimage#1\relax}%
   \def\Gin@llx{0}\let\Gin@lly\Gin@llx
   \Gin@defaultbp\Gin@urx{\wd\@tempboxa}%
   \Gin@defaultbp\Gin@ury{\ht\@tempboxa}}


\def\Ginclude@png#1{%
  \hbox{%
    \pdfimage \@height\Gin@req@height \@width\Gin@req@width #1\relax}}

\def\Gin@extensions{.png}
\@namedef{Gin@rule@.png}#1{{png}{.png}{#1}}

% Rotation
% slightly hacky, but set width of box 0 to 0pt otherwise
% the CTM gets restored in the wrong place.

\def\Grot@start{%
 \pdfliteral{ q
     \Grot@cos\space\Grot@sin\space-\Grot@sin\space\Grot@cos\space
     0 0 cm}%
  \wd\z@\z@}

\def\Grot@end{\pdfliteral{ Q}}

% Scaling is OK, as graphics package does it right here.
\def\Gscale@start{%
  \pdfliteral{ q
   \Gscale@x\space0 0 \Gscale@y\space 0 0 cm}}

\let\Gscale@end\Grot@end

% undo the trig.sty `optimisation' so that these 0 1 and -1 values
% get written out as digits, not unexpandable TeX primitives.
\AtBeginDocument{%
\expandafter\def\csname sin(0)\endcsname{0}%
\expandafter\def\csname cos(0)\endcsname{1}%
\expandafter\def\csname sin(90)\endcsname{1}%
\expandafter\def\csname cos(90)\endcsname{0}%
\expandafter\def\csname sin(-90)\endcsname{-1}%
\expandafter\def\csname cos(-90)\endcsname{0}%
\expandafter\def\csname sin(180)\endcsname{0}%
\expandafter\def\csname cos(180)\endcsname{-1}}




% Are we running under PDFTeX?
\ifx\pdfpageheight\@undefined
  \PackageWarningNoLine\@currname
    {pdftex option does not work with standard TeX}
\else
  \pdfpageheight\paperheight
  \pdfpagewidth\paperwidth
  \pdfoutput=1
\fi


\endinput
