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%%
%% This is file `pgfsys-cmykshadings-luatex.def',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% pgf-cmykshadings.dtx (with options: `luatex-driver')
%%
%% This is a generated file.
%%
%% Copyright (c) 2018-2019 David Purton <dcpurton@marshwiggle.net>
%%
%% 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 is "maintained" (as per the LPPL maintenance status)
%% by David Purton.
%%
%% This work consists of the files pgf-cmykshadings.ins,
%% pgf-cmykshadings.dtx, README.md, and the derived files
%% - pgf-cmykshadings.sty
%% - pgfsys-cmykshadings-pdftex.def
%% - pgfsys-cmykshadings-xetex.def
%% - pgfsys-cmykshadings-luatex.def
%% - pgfsys-cmykshadings-dvipdfmx.def
%% - pgfsys-cmykshadings-dvipdfm.def
%% - pgfsys-cmykshadings-dvips.def
%% - pgfsys-cmykshadings-textures.def
%% - pgfsys-cmykshadings-vtex.def
%% - pgfsys-cmykshadings-common-postscript.def
%% - pgf-cmykshadings.pdf
%%
%%
%% Substantial parts of the code for this package are taken from the pgf package
%% file pgfcoreshade.code.tex, along with the driver files pgfsys-*.def, copyright
%% (c) 2006 Till Tantau and then slightly modified to support CMYK and grayscale
%% shadings.
%%
\ProvidesFile{pgfsys-cmykshadings-luatex.def}%
[2018/10/24
CMYK and grayscale shadings support for PGF luatex driver (DCP)]
\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}}%
\immediate\saveboxresource resources {%
/Shading << /Sh << /ShadingType 2
/ColorSpace \pgf@shading@device\space
/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\useboxresource\the\lastsavedboxresourceindex}%
\expandafter\xdef\csname @pgfshading#1@model!\endcsname{%
\pgf@shading@model}%
}%
}
\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}}%
\immediate\saveboxresource resources {%
/Shading << /Sh << /ShadingType 2
/ColorSpace \pgf@shading@device\space
/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\useboxresource\the\lastsavedboxresourceindex}%
\expandafter\xdef\csname @pgfshading#1@model!\endcsname{%
\pgf@shading@model}%
}%
}
\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}%
\immediate\saveboxresource resources {%
/Shading << /Sh << /ShadingType 3
/ColorSpace \pgf@shading@device\space
/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\useboxresource\the\lastsavedboxresourceindex}%
\expandafter\xdef\csname @pgfshading#1@model!\endcsname{%
\pgf@shading@model}%
}%
}
\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
\pdfextension obj
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 [\pgf@shading@functional@range]
}
{{#4}}%
\edef\pgf@temp@num{\the\numexpr\pdffeedback lastobj\relax}%
\saveboxresource resources {%
/Shading << /Sh << /ShadingType 1
/ColorSpace \pgf@shading@device\space
/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\useboxresource\the\lastsavedboxresourceindex%
\noexpand\pdfextension refobj \pgf@temp@num%
}%
\expandafter\xdef\csname @pgfshading#1@model!\endcsname{%
\pgf@shading@model}%
}%
}
%%
%%
%% End of file `pgfsys-cmykshadings-luatex.def'.
|
