pdftex.dev -- version 0.03t

pdftex.def (text/plain), 27.26 KB, created by Christian Faulhammer (RETIRED) on 2006-08-15 00:34:31 UTC

\ProvidesFile{pdftex.def}[2006/08/14 v0.03t Graphics/color for pdfTeX]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%
%% LaTeX Colour and Graphics support for PDFTeX
%%
%% License
%% =======
%%
%% Copyright (C) 2000-2006 David Carlisle, Sebastian Rahtz, Hans Hagen,
%% Heiko Oberdiek and Martin Schr\"oder
%%
%% This work may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%% The latest version of this license is in
%%   http://www.latex-project.org/lppl.txt
%% and version 1.3c or later is part of all distributions of LaTeX
%% version 2005/12/01 or later.
%%
%% This work has the LPPL maintenance status `maintained'.
%%
%% The Current Maintainer of this work is
%% Heiko Oberdiek and Martin Schr\"oder.
%%
%% This work consists of the file pdftex.def.
%%
%% Usage
%% =====
%%
%% It may be used by specifying the pdftex option to any of the
%% supported packages, for example:
%%
%% \usepackage[pdftex]{graphicx}
%%
%% * pdfTeX determines the bounding box of the images by means of
%%   itself. Therefore the bounding box options should not be used.
%%   In this cases a warning is issued and viewport is used instead.
%% * Option "page" (graphicx) for selecting a page of a multipage
%%   PDF document.
%% * \pagecolor is supported. \nopagecolor disables the page color.
%% * Option "quiet" (graphicx/experimental): log messages are suppressed.
%% * Option "resolution" (graphicx/experimental): this sets
%%   \pdfimageresolution, see pdfTeX documentation.
%% * Option "print" (graphicx/experimental): specifies an alternate
%%   print image (bitmaps only), see PDF specification.
%% * pdftex.def can be used under plain-TeX with miniltx support.
%%
%% "Experimental" means that these features can change or vanish
%% in later versions.
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% History
% ...
% 2000/04/20 v0.02s:
%  * gray color model directly supported (HO).
% 2000/05/02 v0.02t:
%  * \pagecolor supported (HO).
% 2000/05/12 v0.02u:
%  * support for multipage pdf files, option `page' added (HO).
% 2000/05/31 v0.02v:
%  * Option `page' is defined at begin document,
%    if package `keyval' is loaded after `pdftex.def'.
% 2000/06/16 v0.03a:
%  * Added Heiko to author list (DPC).
% 2000/08/31 v0.03b:
%  * support for alternate print images: option `print' added (HO).
%    * This feature is not supported by Ghostscript, xpdf, or AR3.
%    * The images should have the same dimensions/resolution.
%  * Two experimental options added (HO):
%    * `quiet': log messages are suppressed.
%    * `resolution': sets \pdfimageresolution.
%    Because these options are not supported by graphicx,
%    they have to be set after \usepackage{graphicx}, eg.
%      \setkeys{Gin}{quiet,resolution=300}
%    Option `quiet' (for pdftex) can be make known to graphic{s,x}
%    with this line in graphics.cfg:
%      \DeclareOption{quiet}{\let\Gin@log\@gobble}
%    Caution: both options are experimental and can be
%    change in next versions!
%  * \pdfpage{width,height} are only set, if \paperwidth
%    is defined (HO).
% 2000/09/04 v0.03c
%  * Redefinition of `natwidth' and `natheight' \AtBeginDocument (HO).
% 2000/09/14 v0.03d
%  * Fixes for `viewport' and `trim' (HO).
%  * Clip support added for viewport and trim (HO).
% 2000/09/14 v0.03e
%  * Options `bbllx', `bblly', `bburx', `bbury' disabled,
%    option `bb' redirected with a warning to `viewport' (HO).
% 2000/11/10 v0.03f
%  * Bug, that produces an error message, if package `graphics'
%    is used (introduced in 0.03d), fixed: If \Gin@vllx is not
%    defined (graphics), then clipping and the moves of options
%    viewport/trim are silently disabled (HO).
% 2001/05/25 v0.03g
%  * \pdfpagewidth and \pdfpageheight are not set to zero,
%    if \paperwidth and \paperheight are not set (HO).
% 2001/09/01 v0.03h
%  * Compatibilty for miniltx.tex, problems fixed:
%    \@ifpackageloaded, \PackageWarning, \PackageWarningNoLine,
%    \@currname.
% 2001/11/29 v0.03i
%  * Problem with \if@inlabel (plain format) fixed.
% 2002/06/18 v0.03j
%  * Contribution by P\'etiard Fran\c{c}ois <[e-mail]>:
%    Improvement of \Ginclude@mps (support of viewport and clip).
% 2002/06/19 v0.03k
%  * Correction by P\'etiard Fran\c{c}ois for \GPT@DoEndClip.
% 2005/06/15 v0.03l
%  * \usebox patch fixed (\aftergroup part removed) (HO).
% 2005/06/20 v0.03m
%  * .tif support is removed for pdfTeX >= 1.10a (HO).
% 2006/02/23 v0.03n
%  * Compatibility for plain-TeX: file can be loaded multiple times;
%    colorfix is not applied for undefined macros (HO).
% 2006/02/24 v0.03o
%  * Catcode protections mainly because of babel's shorthands (HO).
% 2006/03/02 v0.03p
%  * \pagecolor support for plain-TeX fixed (HO).
% 2006/05/17 v0.03q
%  * Error message if ConTeXt's supp-pdf.tex is missing and
%    support of MPS files is not available (Markus Kohm = MK, HO).
% 2006/06/06 v0.03r
%  * \nopagecolor/\no@page@color added (HO).
% 2006/07/16 v0.03s (HO)
%  * LPPL 1.3c.
%  * A little usage.
%  * Test for \MessageBreak changed (comp.text.tex,
%    message id: <44baca88$0$10529$[e-mail]>).
% 2006/08/14 v0.03t (HO)
%  * Extensions added: .jpeg, .JPG, .JPEG, .PNG, .PDF
%    No variants for .tif, because TIFF support is no longer available.
%    No need for uppercase variant of .msp.
%
% prefix of internal commands for this file `pdftex.def':
%   \GPT@ (Graphics bundle PdfTex driver)

\expandafter\edef\csname GPT@endinput\endcsname{%
  \catcode33 \the\catcode33 % !
  \catcode34 \the\catcode34 % "
  \catcode39 \the\catcode39 % '
  \catcode42 \the\catcode42 % *
  \catcode44 \the\catcode44 % ,
  \catcode45 \the\catcode45 % -
  \catcode46 \the\catcode46 % .
  \catcode47 \the\catcode47 % /
  \catcode58 \the\catcode58 % :
  \catcode59 \the\catcode59 % ;
  \catcode60 \the\catcode60 % <
  \catcode61 \the\catcode61 % =
  \catcode62 \the\catcode62 % >
  \catcode63 \the\catcode63 % ?
  \catcode64 \the\catcode64 % @
  \catcode94 \the\catcode94 % ^
  \catcode96 \the\catcode96 % `
  \relax
  \noexpand\endinput
}
\catcode64 11 %
\@makeother\!
\@makeother\"
\@makeother\'
\@makeother\*
\@makeother\,
\@makeother\-
\@makeother\.
\@makeother\/
\@makeother\:
\@makeother\;
\@makeother\<
\@makeother\=
\@makeother\>
\@makeother\?
\@makeother\`
\catcode`\^=7 %

\ifx\pdftexversion\@undefined
  \def\driver@release{1}%
\else
  \ifnum\pdftexversion<12
    \def\driver@release{2}%
  \else
    \ifnum\pdftexversion<13
      \ifnum \expandafter `\pdftexrevision < `n
        \def\driver@release{3}%
      \else
        \def\driver@release{4}%
      \fi
    \else
      \ifnum\pdftexversion=13
        \def\driver@release{5}%
      \else
        \ifnum\pdftexversion=14
          \def\driver@release{6}%
        \else
          \ifnum\pdftexversion<110
            \def\driver@release{7}%
          \else
            % .tif support was dropped in pdfTeX 1.10a
            \def\driver@release{8}%
          \fi
        \fi
      \fi
    \fi
  \fi
\fi

% miniltx.tex does not define \PackageWarning, \PackageWarningNoLine, ...
\@ifundefined{PackageWarning}{%
  \def\PackageWarning#1#2{%
    \begingroup
      \newlinechar=10 %
      \def\MessageBreak{%
        ^^J(#1)\@spaces\@spaces\@spaces\@spaces
      }%
      \immediate\write16{^^JPackage #1 Warning: #2\on@line.^^J}%
    \endgroup
  }%
}{}
\@ifundefined{PackageWarningNoLine}{%
  \def\PackageWarningNoLine#1#2{%
    \PackageWarning{#1}{#2\@gobble}%
  }%
}{}
\@ifundefined{on@line}{%
  \def\on@line{ on input line \the\inputlineno}%
}{}
\@ifundefined{@spaces}{%
  \def\@spaces{\space\space\space\space}%
}{}
% LaTeX defines \MessageBreak=\relax outside messages
\ifx\MessageBreak\@undefined
  \def\MessageBreak{^^J}%
  \def\GPT@error#1#2{%
    \begingroup
      \newlinechar=10\relax
      \edef\x{%
        \PackageError{graphics}{#1}{#2}%
      }%
      \x
    \endgroup
  }%
\else
  \def\GPT@error{\PackageError{graphics}}%
\fi
\def\GPT@warn{\PackageWarning{pdftex.def}}%
\ifx\Gin@log\@undefined
  \def\Gin@log{\message}
\fi

% Colour Support. The following models may be used.
%   * cmyk   supported directly.
%   * rgb    supported directly.
%   * RGB    converted to rgb by this file.
%   * gray   supported directly.
%   * named  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@arg{#2}%
  \edef#1{#2 g #2 G}%
}
\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{0 g 0 G}

% v0.02t: support for \pagecolor
% fixed in v0.02p by using a box register, see
% http://tug.org/pipermail/pdftex/2005-August/005916.html
%
% v0.03r: \nopagecolor/\no@page@color added.
\newif\ifGPT@pagecolor
\@ifundefined{nopagecolor}{%
  \def\nopagecolor{\no@page@color}%
}{}
\def\no@page@color{%
  \global\GPT@pagecolorfalse
}
\def\set@page@color{%
  \global\GPT@pagecolortrue
  \global\let\current@page@color\current@color
  \@ifundefined{GPT@outputbox}{%
    % \newbox is outer in plain
    \csname newbox\endcsname\GPT@outputbox
  }{}%
  \@ifundefined{GPTorg@shipout}{%
    \global\let\GPTorg@shipout\shipout
    \gdef\shipout{%
      \afterassignment\GPT@shipout
      \global\setbox\GPT@outputbox=%
    }%
    \gdef\GPT@shipout{%
      \ifvoid\GPT@outputbox\relax
         \aftergroup\GPT@@shipout
         \GPT@pageliteral
      \else
        \GPTorg@shipout\vbox{%
          \GPT@pageliteral
          \box\GPT@outputbox
        }%
      \fi
    }%
    \gdef\GPT@@shipout{%
      \GPTorg@shipout\box\GPT@outputbox\relax
    }%
    \gdef\GPT@pageliteral{%
      \ifGPT@pagecolor
        \pdfliteral direct{%
          q % gsave
          \current@page@color\space
          n % newpath
          0 0 \strip@pt\pdfpagewidth\space
          \strip@pt\pdfpageheight\space re % rectangle
          % there is no need to convert to bp
          f % fill
          Q% grestore
        }%
      \fi
    }%
  }{}%
}

% Need the `colorfix' modifications as no internal colour stack
% is maintained
%<*colorfix>
\AtBeginDocument{%
  \begingroup\expandafter\expandafter\expandafter\endgroup
  \expandafter\ifx\csname color\endcsname\relax
    % Without color we don't need any fixes.
  \else
    \@ifundefined{@ldc@l@r}{%
      \let\@ldc@l@r\color
      \def\color{%
        \@ifundefined{if@inlabel}{}{%
          \csname if@inlabel\expandafter\endcsname
          \expandafter\leavevmode\csname fi\endcsname
        }%
        \@ldc@l@r
      }%
    }{}%
    \@ifundefined{@lduseb@x}{%
      \begingroup\expandafter\expandafter\expandafter\endgroup
      \expandafter\ifx\csname usebox\endcsname\relax
      \else
        \let\@lduseb@x\usebox
        \def\usebox#1{\@lduseb@x{#1}\reset@color}%
      \fi
    }{}%
  \fi
}
%</colorfix>

%
% Graphic inclusion. Currently supports .png, .jpg, .mps and .pdf inclusion;
% .tif support is dropped since pdfTeX 1.10a.
% .mps is MetaPost output.
% .mps inclusion depends on loading a CONTEXT module by Hans Hagen;
% .pdf also needs a Context module unless pdftex 0.12n or later.
%
% PNG bitmaps may be scaled/rotated as usual
% by the graphics commands or keyword arguments.
%
% Note the magic in front of the file name after \pdfimage, to
% prevent it fouling up with file names starting with "depth".
\def\Gread@png#1{%
  \setbox\@tempboxa\hbox{\pdfimage\noexpand\noexpand\noexpand\@empty#1\relax}%
  \def\Gin@llx{0}\let\Gin@lly\Gin@llx
  \Gin@defaultbp\Gin@urx{\wd\@tempboxa}%
  \Gin@defaultbp\Gin@ury{\ht\@tempboxa}%
}

%
% support for
% * multipage pdf images (pdfTeX v0.14+)
% * alternate print image (bitmaps only)
%   * driver version>=5 (0.14)
%   * printed image can be resused, but not the base image,
%     because it's dictionary contains the additional key /Alternates.
%   * not supported by Ghostscript or xpdf.
% * option quiet
%
% \GPT@page: page number of pdf image or \@empty otherwise.
\let\GPT@page\@empty
% \GPT@print: file name for alternate image or \@empty otherwise.
\let\GPT@print\@empty
\begingroup
  \toks@{%
    \ifnum\driver@release>5
      \define@key{Gin}{page}{%
        \def\GPT@page{#1}%
      }%
      \define@key{Gin}{print}{%
        \def\GPT@print{#1}%
      }%
    \else
      \define@key{Gin}{page}{%
        \GPT@warn{%
          pdfTeX >= 0.14 required for option\MessageBreak `page'%
        }%
      }%
      \define@key{Gin}{print}{%
        \GPT@warn{%
          pdfTeX >= 0.14 required for option\MessageBreak `print'%
        }%
      }%
    \fi
    \define@key{Gin}{quiet}[]{%
      \let\Gin@log\@gobble
    }%
    \define@key{Gin}{resolution}{%
      \pdfimageresolution#1\relax
    }%
  }%
  \@ifundefined{define@key}{%
    \edef\x{\endgroup
      \noexpand\AtBeginDocument{%
        \noexpand\@ifundefined{define@key}{}{\the\toks@}%
      }%
    }\x
  }{%
    \expandafter\endgroup\the\toks@
  }

% redefinitions of some graphicx options:
\def\GPT@disable#1{%
  \GPT@warn{%
    Option `#1' is not supported, use\MessageBreak
    option `viewport' instead%
  }%
}
\def\GPT@fix{%
  \begingroup\expandafter\expandafter\expandafter\endgroup
  \expandafter\ifx\csname define@key\endcsname\relax
  \else
    \def\KV@Gin@bb{%
      \GPT@warn{%
        Option `bb' does not make sense,\MessageBreak
        using `viewport' instead%
      }%
      \KV@Gin@viewport
    }%
    \define@key{Gin}{bbllx}{\GPT@disable{bbllx}}%
    \define@key{Gin}{bblly}{\GPT@disable{bblly}}%
    \define@key{Gin}{bburx}{\GPT@disable{bburx}}%
    \define@key{Gin}{bbury}{\GPT@disable{bbury}}%
  \fi
}
\AtBeginDocument{\GPT@fix}

%
% mechanism for re-use of objects also
% allows us to get the size by deriving it from the initial storage;
% this works for all graphics types.
%
\@ifundefined{Gread@gobject}{%
  \csname newcount\endcsname\Gread@gobject
}{}
\def\GPT@ReusedName#1{%
  \ifx\GPT@print\@empty
    #1%
  \else
    \GPT@print
  \fi
}
\def\Gread@pdftex#1{%
  % Ensure that option `print' works only on bitmap images.
  \ifGPT@IsBitmap
  \else
    \ifx\GPT@print\@empty
    \else
      \GPT@warn{%
        Option `print' can only be used\MessageBreak
        for bitmap images%
      }%
      \let\GPT@print\@empty
    \fi
  \fi
  % If option `print' is set, the screen image object
  % will contain an additional /Alternate entry
  % and will therefore not be reused.
  \ifx\GPT@print\@empty
  \else
    \expandafter\expandafter\expandafter\@firstoftwo\expandafter\@gobbletwo
  \fi
  \@ifundefined{#1 image\GPT@page}{%
    \ifnum\driver@release>4
      \ifnum\driver@release>5
        \ifx\GPT@print\@empty
          \let\GPT@RuleAttr\@empty
        \else
          \@ifundefined{\GPT@print\space image\GPT@page}{%
            \immediate\pdfximage{\GPT@print}%
            \setbox\@tempboxa=\hbox{\pdfrefximage\pdflastximage}%
            \edef\GPT@PrintObj{\the\pdflastximage}%
            \expandafter\xdef\csname\GPT@print\space
              image\GPT@page\endcsname{\pdfrefximage\GPT@PrintObj}%
            \immediate\pdfobj{%
              [<<%
                /Image \GPT@PrintObj\space 0 R%
                /DefaultForPrinting true%
              >>]%
            }%
            \def\GPT@RuleAttr{%
              width\wd\@tempboxa height\ht\@tempboxa
              attr{/Alternates \the\pdflastobj\space 0 R}%
            }%
          }{%
            \edef\GPT@PrintObj{%
              \expandafter\expandafter\expandafter\@gobble
              \csname\GPT@print\space image\GPT@page\endcsname
            }%
            \immediate\pdfobj{%
              [<<%
                /Image \GPT@PrintObj \space 0 R%
                /DefaultForPrinting true%
              >>]%
            }%
            \def\GPT@RuleAttr{%
              width \csname\GPT@print\space width\GPT@page\endcsname
              height \csname\GPT@print\space height\GPT@page\endcsname
              attr{/Alternates \the\pdflastobj\space 0 R}%
            }%
          }%
        \fi
        \pdfximage \GPT@RuleAttr
        \ifx\GPT@page\@empty
        \else
          page \GPT@page
        \fi
        {#1}%
        \setbox\@tempboxa=\hbox{\pdfrefximage\pdflastximage}%
      \else
        \setbox\@tempboxa=\hbox{\pdfimage{#1}}%
      \fi
    \else
      \setbox\@tempboxa=\hbox{%
        \pdfimage\noexpand\noexpand\noexpand\@empty#1\relax
      }%
    \fi
    \def\Gin@llx{0}\let\Gin@lly\Gin@llx
    \Gin@defaultbp\Gin@urx{\wd\@tempboxa}%
    \Gin@defaultbp\Gin@ury{\ht\@tempboxa}%
    \expandafter\xdef\csname\GPT@ReusedName{#1} width\GPT@page\endcsname{%
      \the\wd\@tempboxa
    }%
    \expandafter\xdef\csname\GPT@ReusedName{#1} height\GPT@page\endcsname{%
      \the\ht\@tempboxa
    }%
    \ifnum\driver@release>5
      \expandafter\xdef\csname #1 image\GPT@page
        \ifx\GPT@print\@empty\else!\fi\endcsname{%
        \pdfrefximage\the\pdflastximage
      }%
    \else
      \pdfform\@tempboxa
      \Gread@gobject=\pdflastform
      \expandafter\xdef\csname#1 image\endcsname{%
        \pdfrefform\the\Gread@gobject
      }%
    \fi
    \Gin@log{%
       <#1, id=%
       \ifnum\driver@release>5
         \the\pdflastximage
         \ifx\GPT@page\@empty\else , page=\GPT@page\fi
         \ifx\GPT@print\@empty
         \else
            , print=\GPT@print, id=\GPT@PrintObj
         \fi
       \else
         \the\Gread@gobject
       \fi
       , \the\wd\@tempboxa\space x \the\ht\@tempboxa
       >%
     }%
  }{%
    \def\Gin@llx{0}\let\Gin@lly\Gin@llx
    \Gin@defaultbp\Gin@urx{\csname#1 width\GPT@page\endcsname}%
    \Gin@defaultbp\Gin@ury{\csname#1 height\GPT@page\endcsname}%
  }%
}
\def\Ginclude@pdftex#1{%
  \def\@tempa{!}%
  \ifx\Gin@scaley\@tempa
    \let\Gin@scaley\Gin@scalex
  \else
    \ifx\Gin@scalex\@tempa\let\Gin@scalex\Gin@scaley\fi
  \fi
  \Gin@log{%
    <use #1%
    \ifx\GPT@page\@empty\else, page \GPT@page\fi
    >%
  }%
  \hbox{%
    \Gscale@box{\Gin@scalex}[\Gin@scaley]{%
      \@ifundefined{Gin@vllx}{%
        \GPT@viewportfalse
        % without viewport/trim clipping does not make sense
        % for pdfTeX
        \Gin@clipfalse
      }{}%
      \ifGin@clip
        \ifnum\driver@release<6
          \GPT@warn{No clipping support in pdfTeX < 0.14}%
        \else
          \if!\Gin@vllx\Gin@vlly\Gin@vurx\Gin@vury!%
          \else
            \let\GPT@clipend\GPT@DoClipEnd
            \setbox\@tempboxa\hbox\bgroup
          \fi
        \fi
      \fi
      \ifGPT@viewport
        \ifdim\Gin@vlly\p@=\z@
        \else
          \lower\Gin@vlly bp\hbox\bgroup
        \fi
        \ifdim\Gin@vllx\p@=\z@
        \else
          \hskip-\Gin@vllx bp\relax
        \fi
      \fi
      \csname#1 image\GPT@page
        \ifx\GPT@print\@empty\else!\fi
      \endcsname
      \ifGPT@viewport
        \ifdim\Gin@vlly\p@=\z@
        \else
          \egroup
        \fi
        \GPT@clipend
      \fi
    }%
  }%
}
\newif\ifGPT@viewport
\GPT@viewporttrue
\let\GPT@clipend\relax
\def\GPT@DoClipEnd{%
  \egroup
  \dp\@tempboxa\z@
  % \Gin@urx and \Gin@ury already contain the correct values,
  % so both cases viewport and trim can be handled together:
  \dimen@\Gin@urx\p@
  % v0.03k \Gin@vllx replaced by \Gin@llx
  \advance\dimen@ -\Gin@llx\p@
  \wd\@tempboxa\strip@pt\dimen@ bp\relax
  \dimen@\Gin@ury\p@
  % v0.03k \Gin@vlly replaced by \Gin@lly
  \advance\dimen@ -\Gin@lly\p@
  \ht\@tempboxa\strip@pt\dimen@ bp\relax
  \pdfxform\@tempboxa
  \pdfrefxform\pdflastxform
}
\newif\ifGPT@IsBitmap
\def\Gread@pdfbitmap#1{%
  \GPT@IsBitmaptrue
  \Gread@pdftex{#1}%
  \GPT@IsBitmapfalse
}

\edef\Gread@MBox{/MediaBox}
\def\Gread@pdf#1{%
  \begingroup
    \@tempcnta\z@
    \loop
    \ifnum\@tempcnta<\@xxxii
      \catcode\@tempcnta14 %
      \advance\@tempcnta\@ne
    \repeat
    \catcode127=14 %
    \let\do\@makeother\dospecials\catcode`\ 10 %
    \catcode\endlinechar5 %
    \immediate\openin\@inputcheck#1 %
    \ifeof\@inputcheck
      \@latex@error{File `#1' not found}\@ehc
    \else
      \Gread@true
      \let\@tempb\Gread@false
      \loop
% v0.02e: use \. not \@tempa so the space is preserved before [
        \read\@inputcheck to\.%
        \ifeof\@inputcheck
          \Gread@false
        \else
          \expandafter\Gread@find@mbox\. []\\%
        \fi
      \ifGread@
      \repeat
      \immediate\closein\@inputcheck
    \fi
    \ifGin@bbox
    \else
      \@latex@error
      {Cannot determine size of graphic in #1 (no BoundingBox)}%
      \@ehc
      \gdef\@gtempa{0 0 72 72 }%
    \fi
  \endgroup
  \expandafter\Gread@parse@bb\@gtempa\\%
}
\long\def\Gread@find@mbox#1 [#2]#3\\{%
  \def\@tempa{#1}%
  \ifx\@tempa\Gread@MBox
    \gdef\@gtempa{#2 }%
    \@tempb
    \Gin@bboxtrue
  \fi
}
\def\Ginclude@png#1{%
  \hbox{%
% v0.02f add \@depth\z@ (from Sebastian)
    \pdfimage
      \@height\Gin@req@height \@width\Gin@req@width \@depth\z@
      \noexpand\noexpand\noexpand\@empty#1\relax
  }%
}

\def\Ginclude@mps#1{%
  \def\@tempa{!}%
  \ifx\Gin@scaley\@tempa
    \let\Gin@scaley\Gin@scalex
  \else
    \ifx\Gin@scalex\@tempa\let\Gin@scalex\Gin@scaley\fi
  \fi
  \hbox{%
    \Gscale@box{\Gin@scalex}[\Gin@scaley]{%
      \@ifundefined{Gin@vllx}{%
        \GPT@viewportfalse
        % without viewport/trim clipping does not make sense
        % for pdfTeX
        \Gin@clipfalse
      }{}%
      \ifGin@clip
        \ifnum\driver@release<6
          \GPT@warn{No clipping support in pdfTeX < 0.14}%
        \else
          \if!\Gin@vllx\Gin@vlly\Gin@vurx\Gin@vury!%
          \else
            \let\GPT@clipend\GPT@DoClipEnd
            \setbox\@tempboxa\hbox\bgroup
          \fi
        \fi
      \fi
      \ifGPT@viewport
        \ifdim\Gin@vlly\p@=\z@
        \else
          \lower\Gin@vlly bp\hbox\bgroup
        \fi
        \ifdim\Gin@vllx\p@=\z@
        \else
          \hskip-\Gin@vllx bp\relax
        \fi
      \fi
      \convertMPtoPDF{#1}{1}{1}%
      \ifGPT@viewport
        \ifdim\Gin@vlly\p@=\z@
        \else
          \egroup
        \fi
        \GPT@clipend
      \fi
    }%
  }%
}
\def\Gread@mps{\Gread@eps}
\ifnum\driver@release>5
  \let\Gread@tif\Gread@pdfbitmap
  \let\Ginclude@tif\Ginclude@pdftex
\fi
\ifnum\driver@release>3
  \let\Ginclude@png\Ginclude@pdftex
  \let\Ginclude@jpg\Ginclude@pdftex
  \let\Ginclude@pdf\Ginclude@pdftex
  \let\Gread@pdf\Gread@pdftex
  \let\Gread@png\Gread@pdfbitmap
  \let\Gread@jpg\Gread@pdfbitmap
\else
  \def\Ginclude@pdf#1{%
    \def\@tempa{!}%
    \ifx\Gin@scaley\@tempa
      \let\Gin@scaley\Gin@scalex
    \else
      \ifx\Gin@scalex\@tempa\let\Gin@scalex\Gin@scaley\fi
    \fi
    \hbox{%
      \convertPDFtoPDF{#1}{\Gin@scalex}{\Gin@scaley} {0bp} {0bp}%
      {\Gin@req@width}{\Gin@req@height}%
    }%
  }
\fi

% v0.02e: restrict the rules to just the types that pdftex can currently
% deal with.
\ifnum\driver@release>3
  \def\Gin@extensions{.png,.pdf,.jpg,.mps,.jpeg,.PNG,.PDF,.JPG,.JPEG}
  \@namedef{Gin@rule@.jpg}#1{{jpg}{.jpg}{#1}}
  \@namedef{Gin@rule@.jpeg}#1{{jpg}{.jpeg}{#1}}
  \@namedef{Gin@rule@.JPG}#1{{jpg}{.JPG}{#1}}
  \@namedef{Gin@rule@.JPEG}#1{{jpg}{.JPEG}{#1}}
  \ifnum\driver@release>5
    \ifnum\driver@release<8
      \def\Gin@extensions{%
        .png,.pdf,.jpg,.mps,.tif,.jpeg,%
        .PNG,.PDF,.JPG,.JPEG%
      }%
      \@namedef{Gin@rule@.tif}#1{{tif}{.tif}{#1}}
    \fi
  \fi
\else
  \def\Gin@extensions{.png,.pdf,.mps,.PNG,.PDF}
\fi
\@namedef{Gin@rule@.png}#1{{png}{.png}{#1}}
\@namedef{Gin@rule@.PNG}#1{{png}{.PNG}{#1}}
\@namedef{Gin@rule@.mps}#1{{mps}{.mps}{#1}}
\@namedef{Gin@rule@.pdf}#1{{pdf}{.pdf}{#1}}
\@namedef{Gin@rule@.PDF}#1{{pdf}{.PDF}{#1}}


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

% Patrick Daly found an error here with doubled minus signs when \Grot@sin is
% negative. Fixed.
\def\Grot@start{%
  \pdfliteral{ q
     \Grot@cos\space\Grot@sin\space\if-\Grot@sin\else-\Grot@sin\fi\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{%
    \@ifundefined{@currname}{pdftex.def}{\@currname}%
  }{%
    pdftex option does not work with standard TeX%
  }%
\else
  \ifx\paperwidth\@undefined
  \else
    \ifdim\paperheight=0pt\relax
    \else
      \pdfpageheight\paperheight
    \fi
    \ifdim\paperwidth=0pt\relax
    \else
      \pdfpagewidth\paperwidth
    \fi
  \fi
  \pdfoutput=1
\fi


% v0.02e: Restore catcodes of context letters.
% Not needed with current version of supp-pdf
% but protects against older versions.
% v0.03o: Catcode protection of '=' because of turkish.ldf.
\AtBeginDocument{%
  \edef\@tempa{%
    \catcode`\noexpand\=\the\catcode`\= %
    \catcode`\noexpand\!\the\catcode`\! %
    \catcode`\noexpand\@\the\catcode`\@ %
    \catcode`\noexpand\?\the\catcode`\? %
  }%
  \@makeother\=%
  \InputIfFileExists{supp-pdf}{}{}%
  % If supp-pdf.tex is not available, \convertMPtoPDF generates
  % an error message. \providecommand inside the third argument
  % of \InputIfFileExists will not work:
  % * \InputIfFileExists has problems with parameters (#1).
  % * Implementation of \providecommand is insufficient in miniltx.tex
  \@ifundefined{convertMPtoPDF}{%
    \newcommand*{\convertMPtoPDF}[3]{%
      \GPT@error{%
        Cannot convert #1 from MPS to PDF.\MessageBreak
        The support file `supp-pdf.tex' is missing%
      }{%
        The graphics driver for pdfTeX needs `supp-pdf.tex' (and `supp-mis.tex')%
        \MessageBreak
        to convert MP to PDF.\MessageBreak
        These files are part of ConTeXt and can also be found here:%
        \MessageBreak
        \space\space CTAN:macros/pdftex/graphics/supp-pdf.tex\MessageBreak
        \space\space CTAN:macros/pdftex/graphics/supp-mis.tex\MessageBreak
        You'll get more errors if you'll continue now.%
      }%
    }%
  }{}%
  \@tempa
}

% these seem to upset pdftex. ignore them. SPQR 1999/08/02
% allow for plain graphics, not graphicx.
% pdftex.def is loaded before the definition in graphicx,
% so do all the stuff \AtBeginDocument:
\AtBeginDocument{%
  \@ifundefined{define@key}{}{%
    \define@key{Gin}{natwidth}{}%
    \define@key{Gin}{natheight}{}%
  }%
}%
\GPT@endinput