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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 $Header: /cvsroot/pgf/pgf/generic/pgf/systemlayer/pgfsys-pdftex.def,v 1.20 2007/12/20 10:56:53 tantau Exp $
+
+
+% Driver commands for pdf
+
+%
+% Load common pdf commands:
+%
+\input pgfsys-common-pdf.def
+
+%
+% pdftex-specific stuff:
+%
+\def\pgfsys@invoke#1{\pdfliteral{#1}}
+
+\def\pgfsys@hboxsynced#1{%
+ {%
+ \pgfsys@beginscope%
+ \setbox\pgf@hbox=\hbox{%
+ \hskip\pgf@pt@x%
+ \raise\pgf@pt@y\hbox{%
+ \pgf@pt@x=0pt%
+ \pgf@pt@y=0pt%
+ \pgflowlevelsynccm%
+ \pgfsys@hbox#1}%
+ \hss%
+ }%
+ \wd\pgf@hbox=0pt%
+ \ht\pgf@hbox=0pt%
+ \dp\pgf@hbox=0pt%
+ \box\pgf@hbox%
+ \pgfsys@endscope%
+ }%
+}
+
+
+% Page resources (they are kept in objects and only written at the
+% very end)
+
+\pdfobj reserveobjnum
+\edef\pgf@sys@pdf@extgs@objnum{\the\pdflastobj}
+
+\pdfobj reserveobjnum
+\edef\pgf@sys@pdf@pattern@objnum{\the\pdflastobj}
+
+\immediate \pdfobj {<< /pgfprgb [/Pattern /DeviceRGB] >>}%<<
+\edef\pgf@sys@pdf@cs@objnum{\the\pdflastobj}
+
+\def\pgf@sys@pdf@possible@resources{%
+ /ColorSpace \pgf@sys@pdf@cs@objnum\space 0 R
+ /Pattern \pgf@sys@pdf@pattern@objnum\space 0 R
+ /ExtGState \pgf@sys@pdf@extgs@objnum\space 0 R
+}
+
+{
+ \edef\temp{
+ \pgf@sys@pdf@possible@resources
+ }
+ \expandafter\global\expandafter\pdfpageresources\expandafter{\temp}
+}
+
+\expandafter\pgfutil@everybye\expandafter{%
+ \the\pgfutil@everybye%
+ \immediate \pdfobj useobjnum \pgf@sys@pdf@extgs@objnum {<<\pgf@sys@pgf@resource@list@extgs>>}%<<
+ \immediate \pdfobj useobjnum \pgf@sys@pdf@pattern@objnum {<<\pgf@sys@pgf@resource@list@patterns>>}%<<
+}
+
+\let\pgf@sys@pgf@resource@list@extgs=\pgfutil@empty%
+\let\pgf@sys@pgf@resource@list@patterns=\pgfutil@empty%
+
+\def\pgf@sys@pdf@addtopageresources@extgs#1{%
+ \xdef\pgf@sys@pgf@resource@list@extgs{\pgf@sys@pgf@resource@list@extgs\space#1}%
+}
+
+\def\pgf@sys@pdf@addtopageresources@patterns#1{%
+ \xdef\pgf@sys@pgf@resource@list@patterns{\pgf@sys@pgf@resource@list@patterns\space#1}%
+}
+
+
+\def\pgfsys@imagesuffixlist{.pdf:.jpg:.jpeg:.png:}
+\def\pgfsys@defineimage{% width, height, page number
+ \ifx\pgf@imagewidth\pgfutil@empty\else\edef\pgf@imagewidth{ width \pgf@imagewidth }\fi%
+ \ifx\pgf@imageheight\pgfutil@empty\else\edef\pgf@imageheight{ height \pgf@imageheight }\fi%
+ \ifx\pgf@imagepage\pgfutil@empty\else\edef\pgf@imagepage{ page \pgf@imagepage }\fi%
+ \ifx\pdfximage\@undefined% old version of pdflatex
+ \ifx\pgf@imagepage\pgfutil@empty\else%
+ \PackageWarning{pgf}{Page selection not supported. Ignoring
+ page selection}%
+ \fi%
+ \setbox\pgfutil@tempboxa=\hbox{%
+ \pdfimage \pgf@imageheight \pgf@imagewidth {\pgf@filename}}%
+ \pdfform\pgfutil@tempboxa%
+ \edef\pgf@image{\noexpand\pdfrefform\the\pdflastform}%
+ \else% new version
+ {\pdfximage \pgf@imageheight \pgf@imagewidth attr
+ {\pgf@imageinterpolate\space\pgf@imagemask} \pgf@imagepage
+ {\pgf@filename}}%
+ \edef\pgf@image{\noexpand\pdfrefximage\the\pdflastximage}%
+ \fi
+}%
+\def\pgfsys@definemask{%
+ \ifx\pgf@maskmatte\pgfutil@empty%
+ \else%
+ \edef\pgf@maskmatte{/Matte [\pgf@maskmatte]}%
+ \fi%
+ \edef\pgf@attr{{\pgf@maskmatte\space /Decode [1 0]}}%
+ \immediate\pdfximage attr \pgf@attr {\pgf@filename}%
+ \edef\pgf@mask{\the\pdflastximage}%
+}
+\def\pgfsys@horishading#1#2#3{%
+ {%
+ \pgf@parsefunc{#3}%
+ \pgfmathparse{#2}%
+ \setbox\pgfutil@tempboxa=\hbox to\pgf@max{\vbox to\pgfmathresult pt{\vfil\pgfsys@invoke{/Sh sh}}\hfil}%
+ \pgf@process{\pgfpoint{\pgf@max}{#2}}%
+ \pdfxform resources {%
+ /Shading << /Sh << /ShadingType 2
+ /ColorSpace /DeviceRGB
+ /Domain [\pgf@pdfparseddomain]
+ /Coords [\pgf@doma\space0 \pgf@domb\space0]
+ /Function \pgf@pdfparsedfunction
+ /Extend [false false] >> >>}\pgfutil@tempboxa% <<
+ \expandafter\xdef\csname @pgfshading#1!\endcsname{\leavevmode\noexpand\pdfrefxform\the\pdflastxform}%
+ }%
+}
+\def\pgfsys@vertshading#1#2#3{%
+ {%
+ \pgf@parsefunc{#3}%
+ \pgfmathparse{#2}%
+ \setbox\pgfutil@tempboxa=\hbox to\pgfmathresult pt{\vbox to\pgf@max{\vfil\pgfsys@invoke{/Sh sh}}\hfil}%
+ \pgf@process{\pgfpoint{#2}{\pgf@max}}%
+ \pdfxform resources {%
+ /Shading << /Sh << /ShadingType 2
+ /ColorSpace /DeviceRGB
+ /Domain [\pgf@pdfparseddomain]
+ /Coords [0 \pgf@doma\space0 \pgf@domb]
+ /Function \pgf@pdfparsedfunction
+ /Extend [false false] >> >>}\pgfutil@tempboxa% <<
+ \expandafter\xdef\csname @pgfshading#1!\endcsname{\leavevmode\noexpand\pdfrefxform\the\pdflastxform}%
+ }%
+}
+\def\pgfsys@radialshading#1#2#3{%
+ {%
+ \pgf@parsefunc{#3}%
+ \setbox\pgfutil@tempboxa=\hbox to2\pgf@max{\vbox to2\pgf@max{\vfil\pgfsys@invoke{/Sh sh}}\hfil}%
+ \pgf@process{#2}%
+ \pgf@xa=\pgf@x%
+ \pgf@ya=\pgf@y%
+ \pgf@process{\pgfpoint{\pgf@max}{\pgf@max}}%
+ \advance\pgf@xa by \pgf@x%
+ \advance\pgf@ya by \pgf@y%
+ \pgf@sys@bp@correct{\pgf@x}%
+ \pgf@sys@bp@correct{\pgf@y}%
+ \pgf@sys@bp@correct{\pgf@xa}%
+ \pgf@sys@bp@correct{\pgf@ya}%
+ \pdfxform 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] >> >>}\pgfutil@tempboxa% <<
+ \expandafter\xdef\csname @pgfshading#1!\endcsname{\leavevmode\noexpand\pdfrefxform\the\pdflastxform}%
+ }%
+}%
+\def\pgfsys@functionalshading#1#2#3#4{%
+ {%
+ \pgf@process{#2}%
+ \pgf@xa=\pgf@x%
+ \pgf@ya=\pgf@y%
+ \pgf@process{#3}%
+ \pgf@xb=\pgf@x%
+ \pgf@yb=\pgf@y%
+ \advance\pgf@x by-\pgf@xa%
+ \advance\pgf@y by-\pgf@ya%
+ \setbox\pgfutil@tempboxa=\hbox to\pgf@x{\vbox to\pgf@y{\vfil\pgfsys@invoke{/Sh sh}}\hfil}%
+ \pgf@sys@bp@correct{\pgf@xa}%
+ \pgf@sys@bp@correct{\pgf@ya}%
+ \pgf@sys@bp@correct{\pgf@xb}%
+ \pgf@sys@bp@correct{\pgf@yb}%
+ \pgf@xc=-\pgf@xa%
+ \pgf@yc=-\pgf@ya%
+ % Now build the function
+ \pdfobj
+ stream
+ attr
+ {
+ /FunctionType 4
+ /Domain [\pgf@sys@tonumber{\pgf@xa}\space\pgf@sys@tonumber{\pgf@xb}\space\pgf@sys@tonumber{\pgf@ya}\space\pgf@sys@tonumber{\pgf@yb}]
+ /Range [0 1 0 1 0 1]
+ }
+ {{#4}}%
+ \edef\pgf@temp@num{\the\pdflastobj}%
+ \pdfxform resources {%
+ /Shading << /Sh << /ShadingType 1
+ /ColorSpace /DeviceRGB
+ /Matrix [1 0 0 1 \pgf@sys@tonumber{\pgf@xc}\space\pgf@sys@tonumber{\pgf@yc}]
+ /Domain [\pgf@sys@tonumber{\pgf@xa}\space\pgf@sys@tonumber{\pgf@xb}\space\pgf@sys@tonumber{\pgf@ya}\space\pgf@sys@tonumber{\pgf@yb}]
+ /Function \pgf@temp@num\space 0 R
+ >> >>}\pgfutil@tempboxa% <<
+ \expandafter\xdef\csname @pgfshading#1!\endcsname{%
+ \leavevmode%
+ \noexpand\pdfrefxform\the\pdflastxform%
+ \noexpand\pdfrefobj\pgf@temp@num%
+ }%
+ }%
+}
+
+
+
+% Patterns
+
+\def\pgfsys@declarepattern#1#2#3#4#5#6#7#8#9{%
+ % Start building the pattern dictionary:
+ \pgf@xa=#2\relax%
+ \pgf@ya=#3\relax%
+ \pgf@xb=#4\relax%
+ \pgf@yb=#5\relax%
+ \pgf@xc=#6\relax%
+ \pgf@yc=#7\relax%
+ \pgf@sys@bp@correct\pgf@xa%
+ \pgf@sys@bp@correct\pgf@ya%
+ \pgf@sys@bp@correct\pgf@xb%
+ \pgf@sys@bp@correct\pgf@yb%
+ \pgf@sys@bp@correct\pgf@xc%
+ \pgf@sys@bp@correct\pgf@yc%
+ % Now create the pattern object:
+ \immediate\pdfobj stream
+ attr
+ {
+ /Type /Pattern
+ /PatternType 1
+ /PaintType \ifnum#9=0 2 \else 1 \fi
+ /TilingType 1
+ /BBox [\pgf@sys@tonumber\pgf@xa\space\pgf@sys@tonumber\pgf@ya\space\pgf@sys@tonumber\pgf@xb\space\pgf@sys@tonumber\pgf@yb]
+ /XStep \pgf@sys@tonumber\pgf@xc\space
+ /YStep \pgf@sys@tonumber\pgf@yc\space
+ /Resources << >> %<<
+ }
+ {#8}%
+ \pgf@sys@pdf@addtopageresources@patterns{/pgfpat#1\space \the\pdflastobj\space 0 R}%
+}
+
+\def\pgfsys@setpatternuncolored#1#2#3#4{%
+ \pgfsysprotocol@literal{/pgfprgb cs #2 #3 #4 /pgfpat#1\space scn}%
+}
+
+\def\pgfsys@setpatterncolored#1{%
+ \pgfsysprotocol@literal{/Pattern cs /pgfpat#1\space scn}%
+}
+
+
+\def\pgfsys@papersize#1#2{%
+ \pdfpageheight#2%
+ \pdfpagewidth#1}
+
+
+ % XForm version, crashes ghostview.
+ %\def\pgfsys@defobject#1#2#3#4{%
+ % \pgf@process{#2}
+ % \setbox\pgfobjectbox\hbox{\raise-\pgf@y\hbox{\hskip-\pgf@x\relax#4}}
+ % \pgf@process{#3}
+ % \pgf@xa=\pgf@x
+ % \pgf@ya=\pgf@y
+ % \pgf@process{#2}
+ % \advance\pgf@xa by-\pgf@x
+ % \advance\pgf@ya by-\pgf@y
+ % \wd\pgfobjectbox=\pgf@xa
+ % \dp\pgfobjectbox=0pt
+ % \ht\pgfobjectbox=\pgf@ya
+ % \pdfxform\pgfobjectbox
+ % \expandafter\xdef\csname#1\endcsname{\the\pdflastxform}
+ % \expandafter\xdef\csname pgf@trans#1\endcsname
+ % {{\pgfget x}{\pgfget y}}}
+ %\def\pgfsys@useobject#1#2{%
+ % \setbox\pgfobjectbox\hbox{\pdfrefxform \csname#1\endcsname}%
+ % \dp\pgfobjectbox=0pt%
+ % \ht\pgfobjectbox=0pt%
+ % \wd\pgfobjectbox=0pt%
+ % \pgfsys@discardpath%
+ % \pgfsys@beginscope%
+ % #2%
+ % \edef\pgf@temp{{1}{0}{0}{1}\csname pgf@trans#1\endcsname}%
+ % \expandafter\pgfsys@transform\pgf@temp%
+ % \box\pgfobjectbox%
+ % \pgfsys@endscope}
+
+
+
+%
+% Position tracking
+%
+\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}
+
+
+%
+% Opacity masks
+%
+\def\pgfsys@fadingfrombox#1#2{%
+ {%
+ \pgf@x=-.5\wd#2%
+ \pgf@y=-.5\ht#2%
+ \advance\pgf@y by.5\dp#2%
+ \expandafter\xdef\csname pgfsmasktrans@#1\endcsname{%
+ \noexpand\pgftransformcm{1}{0}{0}{1}{\noexpand\pgfqpoint{\the\pgf@x}{\the\pgf@y}}}%
+ \pdfxform resources { \pgf@sys@pdf@possible@resources } #2%
+ \expandafter\xdef\csname pgfsmaskxform@#1\endcsname{\the\pdflastxform}%
+ }%
+}
+\def\pgfsys@usefading#1#2#3#4#5#6#7{%
+ \expandafter\ifx\csname pgfsmaskxform@#1\endcsname\relax%
+ \PackageError{pgf}{Undefined fading '#1'}{}%
+ \else%
+ {%
+ \expandafter\ifx\csname pgfsmaks@#1\endcsname\relax%
+ \pgf@sys@pdf@install@mask{#1}%
+ \fi%
+ \pgftransformreset%
+ \pgftransformcm{#2}{#3}{#4}{#5}{\pgfpoint{#6}{#7}}%
+ \csname pgfsmasktrans@#1\endcsname%
+ {%
+ \pgflowlevelsynccm%
+ \pgfsys@invoke{/pgfsmask\csname pgfsmask@#1\endcsname\space gs}%
+ }%
+ \pgftransforminvert%
+ \pgflowlevelsynccm%
+ }%
+ \fi
+}
+
+\def\pgf@sys@pdf@install@mask#1{%
+ \setbox\pgfutil@tempboxa=\hbox{\pdfrefxform\csname pgfsmaskxform@#1\endcsname}
+ \immediate\pdfxform%
+ attr {
+ /Group
+ <<
+ /S /Transparency
+ /CS /DeviceGray
+ >>
+ }% <<
+ \pgfutil@tempboxa%
+ \pgf@sys@pdf@addtopageresources@extgs{%
+ /pgfsmask\the\pdflastxform\space
+ <<
+ /SMask
+ <<
+ /S /Luminosity
+ /G \the\pdflastxform\space 0 R
+ >>
+ >> } %<<
+ \expandafter\xdef\csname pgfsmask@#1\endcsname{\the\pdflastxform}%
+}
+
+%
+% Transparency groups
+%
+\def\pgfsys@transparencygroupfrombox#1{%
+ \pdfxform
+ attr { /Group << /S /Transparency >> } %<<
+ resources { \pgf@sys@pdf@possible@resources }
+ #1%
+ \setbox#1=\hbox{\pdfrefxform\pdflastxform}%
+}
+
+\endinput
+
+
+%%% Local Variables:
+%%% mode: latex
+%%% End: