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% Copyright 2006 by Till Tantau
%
% This file may be distributed and/or modified
%
% 1. under the LaTeX Project Public License and/or
% 2. under the GNU Public License.
%
% See the file doc/generic/pgf/licenses/LICENSE for more details.
\ProvidesFileRCS{pgfsys-common-pdf-via-dvi.def}
% Common driver commands for all drivers that produce pdf via the
% detour of a dvi file
% Hboxes
\def\pgfsys@beginpurepicture{\special{pdf: content q}}
\def\pgfsys@imagesuffixlist{.pdf:.jpg:.jpeg:.png:}
\def\pgfsys@horishading#1#2#3{%
{%
\pgf@parsefunc{#3}%
\pgf@process{\pgfpoint{\pgf@max}{#2}}%
\edef\@temp{\noexpand\pgfutil@insertatbegincurrentpage{\special{pdf: beginxobj @pgfshade#1 width \the\pgf@max\space height \the\pgf@y}}}\@temp%
\edef\@temp{\noexpand\pgfutil@insertatbegincurrentpage{\special{pdf: put @resources <<
/Shading << /Sh << /ShadingType 2
/ColorSpace /DeviceRGB
/Domain [\pgf@pdfparseddomain]
/Coords [\pgf@doma\space0 \pgf@domb\space0]
/Function \pgf@pdfparsedfunction
/Extend [false false] >> >> >>}}}\@temp% <<
\pgfutil@insertatbegincurrentpage{\special{pdf: content /Sh sh}%
\special{pdf: endxobj}}%
\expandafter\xdef\csname @pgfshading#1!\endcsname{%
\hbox to\the\pgf@max{\vbox to#2{\vfil\special{pdf: usexobj @pgfshade#1}}\hfil}}%
}%
}
\def\pgfsys@vertshading#1#2#3{%
{%
\pgf@parsefunc{#3}%
\pgf@process{\pgfpoint{\pgf@max}{#2}}%
\edef\@temp{\noexpand\pgfutil@insertatbegincurrentpage{\special{pdf: beginxobj @pgfshade#1 width \the\pgf@y\space height \the\pgf@max\space}}}\@temp%
\edef\@temp{\noexpand\pgfutil@insertatbegincurrentpage{\special{pdf: put @resources <<
/Shading << /Sh << /ShadingType 2
/ColorSpace /DeviceRGB
/Domain [\pgf@pdfparseddomain]
/Coords [0 \pgf@doma\space0 \pgf@domb]
/Function \pgf@pdfparsedfunction
/Extend [false false] >> >> >>}}}\@temp% <<
\pgfutil@insertatbegincurrentpage{\special{pdf: content /Sh sh}%
\special{pdf: endxobj}}%
\expandafter\xdef\csname @pgfshading#1!\endcsname{%
\hbox to#2{\vbox to\the\pgf@max{\vfil\special{pdf: usexobj @pgfshade#1}}\hfil}}%
}%
}
\def\pgfsys@radialshading#1#2#3{%
{%
\pgf@parsefunc{#3}%
\pgf@process{#2}%
\pgf@xa=\pgf@x%
\pgf@ya=\pgf@y%
\pgf@process{\pgfpoint{\pgf@max}{\pgf@max}}%
\advance\pgf@xa by \pgf@x\relax%
\advance\pgf@ya by \pgf@y\relax%
\pgf@sys@bp@correct{\pgf@x}%
\pgf@sys@bp@correct{\pgf@y}%
\pgf@sys@bp@correct{\pgf@xa}%
\pgf@sys@bp@correct{\pgf@ya}%
\pgfutil@tempdima=2\pgf@max\relax%
\edef\@temp{\noexpand\pgfutil@insertatbegincurrentpage{\special{pdf: beginxobj @pgfshade#1 width \the\pgfutil@tempdima\space height \the\pgfutil@tempdima}}}\@temp%
\edef\@temp{\noexpand\pgfutil@insertatbegincurrentpage{\special{pdf: put @resources <<
/Shading << /Sh << /ShadingType 3
/ColorSpace /DeviceRGB
/Domain [\pgf@pdfparseddomain]
/Coords [\pgf@sys@tonumber{\pgf@xa} \pgf@sys@tonumber{\pgf@ya} \pgf@doma\space \pgf@sys@tonumber{\pgf@x} \pgf@sys@tonumber{\pgf@y} \pgf@domb]
/Function \pgf@pdfparsedfunction
/Extend [true false] >> >> >>}}}\@temp% <<
\pgfutil@insertatbegincurrentpage{\special{pdf: content /Sh sh}%
\special{pdf: endxobj}}%
\expandafter\xdef\csname @pgfshading#1!\endcsname{%
\hbox to\the\pgfutil@tempdima{\vbox to\the\pgfutil@tempdima{\vfil\special{pdf: usexobj @pgfshade#1}}\hfil}}%
}%
}%
\def\pgf@sys@pdf@dvi@tracker{
\def\pgfsys@markposition##1{%
\pdfsavepos%
\edef\pgf@temp{##1}%
\expandafter\write\expandafter\pgfutil@auxout\expandafter{%
\expandafter\noexpand\expandafter\pgfsyspdfmark\expandafter{\pgf@temp}{\the\pdflastxpos}{\the\pdflastypos}}%
}
\def\pgfsyspdfmark##1##2##3{%
\expandafter\gdef\csname pgf@sys@pdf@mark@pos@##1\endcsname{\pgfqpoint{##2sp}{##3sp}}%
}
\def\pgfsys@getposition##1##2{%
\edef\pgf@marshal{\let\noexpand##2=\expandafter\noexpand\csname pgf@sys@pdf@mark@pos@##1\endcsname}%
\pgf@marshal%
}
\def\pgf@sys@pdf@mark@pos@pgfpageorigin{\pgfpointorigin}
}
%
% Resource management
%
\newif\ifpgf@sys@pdf@colorspaces@exists
\newif\ifpgf@sys@pdf@patterns@exists
\newif\ifpgf@sys@pdf@extgs@exists
\newif\ifpgf@sys@pdf@colorspaces@created
\newif\ifpgf@sys@pdf@patterns@created
\newif\ifpgf@sys@pdf@extgs@created
\newif\ifpgf@sys@pdf@any@resources
\def\pgf@sys@setuppdfresources@plain{%
% This command will setup pdf resource in plain and in latex
% mode. ConTeXt has its own handler
\pgfutil@insertatbegineverypage{%
\pgf@sys@pdf@any@resourcesfalse%
\ifpgf@sys@pdf@extgs@exists%
\pgf@sys@pdf@any@resourcestrue%
\ifpgf@sys@pdf@extgs@created \else \special{pdf: obj @pgfextgs <<>>} \global\pgf@sys@pdf@extgs@createdtrue \fi% <<
\fi%
\ifpgf@sys@pdf@colorspaces@exists%
\pgf@sys@pdf@any@resourcestrue%
\ifpgf@sys@pdf@colorspaces@created \else \special{pdf: obj @pgfcolorspaces <<>>} \global\pgf@sys@pdf@colorspaces@createdtrue \fi% <<
\fi%
\ifpgf@sys@pdf@patterns@exists%
\pgf@sys@pdf@any@resourcestrue%
\ifpgf@sys@pdf@patterns@created \else \special{pdf: obj @pgfpatterns <<>>} \global\pgf@sys@pdf@patterns@createdtrue \fi% <<
\fi%
\ifpgf@sys@pdf@any@resources%
\special{pdf: put @resources <<
\ifpgf@sys@pdf@extgs@exists /ExtGState @pgfextgs \fi
\ifpgf@sys@pdf@patterns@exists /Pattern @pgfpattern \fi
\ifpgf@sys@pdf@colorspaces@exists /ColorSpace @pgfcolorspaces \fi
>>}% <<
\fi%
}
\def\pgf@sys@addpdfresource@extgs@plain##1{%
\global\pgf@sys@pdf@extgs@existstrue%
\pgfutil@insertatbegincurrentpage{\special{pdf: put @pgfextgs << ##1 >>}}% <<
}
\def\pgf@sys@addpdfresource@colorspaces@plain##1{%
\global\pgf@sys@pdf@colorspaces@existstrue%
\pgfutil@insertatbegincurrentpage{\special{pdf: put @pgfcolorspaces << ##1 >>}}% <<
}
\def\pgf@sys@addpdfresource@patterns@plain##1{%
\global\pgf@sys@pdf@patterns@existstrue%
\pgfutil@insertatbegincurrentpage{\special{pdf: put @pgfpatterns << ##1 >>}}% <<
}
}
\pgfutil@setuppdfresources % possibly call the above
\endinput
%%% Local Variables:
%%% mode: latex
%%% End:
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