diff options
Diffstat (limited to 'tex/context/base/supp-mpe.tex')
| -rw-r--r-- | tex/context/base/supp-mpe.tex | 467 |
1 files changed, 353 insertions, 114 deletions
diff --git a/tex/context/base/supp-mpe.tex b/tex/context/base/supp-mpe.tex index 222a1947e..3068b94e0 100644 --- a/tex/context/base/supp-mpe.tex +++ b/tex/context/base/supp-mpe.tex @@ -11,6 +11,13 @@ %C therefore copyrighted by \PRAGMA. See mreadme.pdf for %C details. +% fuzzy and complicating is the fact that we need to support +% context as well as mptopdf, so we cannot fall back on the +% special drivers and color module (although there may be +% good reasons to use a smaller context instead); also, +% shading is handled here while it should move to the special +% driver - to do! + %D This module is still experimental and deals with some %D extensions to \METAPOST. When using \POSTSCRIPT\ output, %D these extensions can be supplied by means of proper @@ -95,8 +102,8 @@ \def\dohandleMPspecialcomment#1 {\setMPargument{#1}% - \advance\scratchcounter -1 - \ifcase\scratchcounter\relax + \advance\scratchcounter \minusone + \ifcase\scratchcounter \handleMPspecialcommand \donetrue \doresetMPstack @@ -108,13 +115,13 @@ \def\handleMPspecialcomment #1 % number of arguments {\doresetMPstack - \scratchcounter=#1\relax + \scratchcounter#1\relax \ifcase\scratchcounter % when zero, inline shading is used - \chardef\inlineMPspecials1 + \chardef\inlineMPspecials\plusone \let\handleMPsequence\dohandleMPsequence \expandafter\handleMPsequence \else - \chardef\inlineMPspecials0 + \chardef\inlineMPspecials\zerocount \expandafter\dohandleMPspecialcomment \fi} @@ -122,9 +129,9 @@ %D definitions. Actually, this macro is called by the %D previous ones. -\def\handleMPspecialcommand% +\def\handleMPspecialcommand {\ifcase\inlineMPspecials\or - \advance\nofMParguments -1 % pop the size + \advance\nofMParguments \minusone % pop the size \fi \ifundefined\MPspecial \message{[unknown \MPspecial]}% @@ -143,9 +150,9 @@ \def\handleMPspecialscomment #1.#2 #3 % version.revision signal {\doresetMPstack - \chardef\MPspecialversion #1 - \chardef\MPspecialrevision#2 - \chardef\MPspecialsignal #3 + \chardef\MPspecialversion #1% + \chardef\MPspecialrevision#2% + \chardef\MPspecialsignal #3% \let\handleMPsequence\dohandleMPsequence \handleMPsequence} @@ -154,14 +161,14 @@ \newtoks\MPstartresources \newtoks\MPstopresources -\def\startMPresources% +\def\startMPresources {\the\MPstartresources \ifx\currentPDFresources\empty\else \message{[unused resources]}% \fi \global\let\currentPDFresources\empty} -\def\stopMPresources% +\def\stopMPresources {\let\currentPDFresources\empty \the\MPstopresources} @@ -171,13 +178,15 @@ %D {0.001} is the first path and \type {0.010} the tenth. Since %D \METAPOST strips trailing zeros, we have to padd the string. -\newif\ifMPcmyk +\newif\ifMPcmykcolors +\newif\ifMPspotcolors \ifx\normalhandleMPrgbcolor\undefined % in case we reload this module \let\normalhandleMPrgbcolor \handleMPrgbcolor \let\normalhandleMPcmykcolor\handleMPcmykcolor \let\normalhandleMPgraycolor\handleMPgraycolor + \let\normalhandleMPspotcolor\handleMPspotcolor \fi @@ -194,7 +203,7 @@ \ifCONTEXT % we can use this for a better xgstate handling - \def\checkPDFMPstrokecolor% + \def\checkPDFMPstrokecolor {\ifPDFMPstrokecolor \PDFstrokecolortrue \fi} \def\normalhandleMPrgbcolor @@ -206,6 +215,9 @@ \def\normalhandleMPgraycolor {{\checkPDFMPstrokecolor\execcolorS\gMPa1:0:0\od}} + \def\normalhandleMPspotcolor + {{\checkPDFMPstrokecolor\execcolorP\gMPa1:\gMPa2:0:0\od}} + \fi % In the previous macros we use the special drivers. A more @@ -256,7 +268,7 @@ % % speed up: -\def\setMPcolor% +\def\setMPcolor {\edef\lastMPrvalue{\csname\@@MP01\endcsname}% \edef\lastMPgvalue{\csname\@@MP02\endcsname}% \edef\lastMPbvalue{\csname\@@MP03\endcsname}} @@ -270,41 +282,45 @@ \resetMPcolor -% \def\handleMPrgbcolor% -% {\ifcase\MPspecialversion -% \normalhandleMPrgbcolor -% \else -% \setMPcolor -% \ifnum\MPrgbnumber\lastMPrvalue=\MPspecialsignal\relax -% \ifMPcmyk \interceptMPcmykcolor \fi -% \else -% \resetMPcolor\normalhandleMPrgbcolor -% \fi -% \fi} - \def\@@MPSK{@MPSK@} +\def\@@MPSP{@MPSP@} -\def\interceptMPcmykcolor % todo : \ifMPcmyk +\def\interceptMPcmykcolor % todo : \ifMPcmykcolors {\ifcase\MPrgbnumber\lastMPgvalue % cannot happen \or % 1 == cmyk color spec - \ifMPcmyk \dointerceptMPcmykcolor \fi + \ifMPcmykcolors \dointerceptMPcmykcolor \fi + \or + % 2 == spot color + \ifMPspotcolors \dointerceptMPspotcolor \fi \or - % 2 == rgb transparency + % 3 == rgb transparency \invokeMPtransparencyspecial + \or + % 4 == cmyk transparency + \ifMPcmykcolors \invokeMPtransparencyspecial \fi + \or + % 5 == spot transparency + \ifMPspotcolors \invokeMPtransparencyspecial \fi \else - % 3 == cmyk transparency - \ifMPcmyk \invokeMPtransparencyspecial \fi + % \writestatus{MPtoPDF}{unknown direct special}% \fi} -\def\dointerceptMPcmykcolor % can be used often, so sped up +\def\dointerceptMPcmykcolor {\revokeMPtransparencyspecial \@EA\ifx\csname\@@MPSK\number\MPrgbnumber\lastMPbvalue\endcsname\relax\else \@EA\@EA\@EA\setMPcmyk\csname\@@MPSK\number\MPrgbnumber\lastMPbvalue\endcsname \normalhandleMPcmykcolor \fi} +\def\dointerceptMPspotcolor + {\revokeMPtransparencyspecial + \@EA\ifx\csname\@@MPSP\number\MPrgbnumber\lastMPbvalue\endcsname\relax\else + \@EA\@EA\@EA\setMPspot\csname\@@MPSP\number\MPrgbnumber\lastMPbvalue\endcsname + \normalhandleMPspotcolor + \fi} + \def\handleMPrgbcolor {\resetMPcolor \ifcase\MPspecialversion @@ -341,12 +357,12 @@ \newtoks \invokeMPspecials -\def\finishMPpath% +\def\finishMPpath {\PDFcode {\ifcase\finiMPpath W n\or S\or f\or B\else W n\fi \extraMPpathcode}} -\def\processMPpath% +\def\processMPpath {\checkMPpath % ! \ifcase\nofMPsegments\else \let\extraMPpathcode\empty @@ -510,8 +526,8 @@ \def\startMPshading#1% {\edef\currentMPspecial{\gMPs{#1}}} -\def\stopMPshading% - {\global\advance\currentPDFshade 1 +\def\stopMPshading + {\global\advance\currentPDFshade \plusone \setxvalue{obj:Sh:\currentMPspecial}% {/Sh\the\currentPDFshade\space\the\pdflastobj\space0 R }% \setxvalue{mps:Sh:\currentMPspecial}% @@ -522,19 +538,19 @@ \to \MPstartresources \appendtoks - \ifx\currentMPshades\empty \else - \xdef\currentPDFresources{\currentPDFresources - /Shading <<\currentMPshades>>}% - \fi + \ifx\currentMPshades\empty \else + \xdef\currentPDFresources{\currentPDFresources + /Shading <<\currentMPshades>>}% + \fi \to \MPstopresources -\def\invokeMPshadespecial% +\def\invokeMPshadespecial {\doifdefined{mps:Sh:\currentMPspecial} {\edef\currentMPshade{\getvalue{obj:Sh:\currentMPspecial}}% - \doifinstringelse{\currentMPshade}{\currentMPshades} - {}{\xdef\currentMPshades{\currentMPshades\currentMPshade}}% + \doifinstringelse\currentMPshade\currentMPshades \donothing + {\xdef\currentMPshades{\currentMPshades\currentMPshade}}% \def\extraMPpathcode{/Sh\getvalue{mps:Sh:\currentMPspecial} sh Q}% - \chardef\finiMPpath=0 + \chardef\finiMPpath\zerocount \PDFcode{q /Pattern cs}}} \appendtoks \invokeMPshadespecial \to \invokeMPspecials @@ -542,64 +558,130 @@ %D We need to convert the \CMYK\ specials into colors, because %D we have to do it twice, we define a macro. +% \def\checkMPshadingcolor#1#2#3#4#5% +% {\edef\tempMPrvalue{\csname\@@MP0#1\endcsname}% +% \edef\tempMPgvalue{\csname\@@MP0#2\endcsname}% +% \edef\tempMPbvalue{\csname\@@MP0#3\endcsname}% +% \edef#5% +% {\ifx\tempMPrvalue\tempMPgvalue +% \ifx\tempMPrvalue\tempMPbvalue +% \ifx\tempMPgvalue\tempMPbvalue +% \tempMPbvalue +% \fi +% \fi +% \fi}% +% \edef#4% todo : spotcolors +% {\ifnum\MPrgbnumber\tempMPrvalue=\MPspecialsignal\space +% \ifMPcmykcolors\getvalue{\@@MPSK\number\MPrgbnumber\tempMPbvalue}\fi +% \fi}} + \def\checkMPshadingcolor#1#2#3#4#5% {\edef\tempMPrvalue{\csname\@@MP0#1\endcsname}% \edef\tempMPgvalue{\csname\@@MP0#2\endcsname}% \edef\tempMPbvalue{\csname\@@MP0#3\endcsname}% - \edef#5% - {\ifx\tempMPrvalue\tempMPgvalue - \ifx\tempMPrvalue\tempMPbvalue - \ifx\tempMPgvalue\tempMPbvalue - \tempMPbvalue - \fi - \fi - \fi}% - \edef#4% - {\ifnum\MPrgbnumber\tempMPrvalue=\MPspecialsignal\space - \ifMPcmyk\getvalue{\@@MPSK\number\MPrgbnumber\tempMPbvalue}\fi - \fi}} + \global\let\MPresolvedspace\MPgrayspace + \global\let\MPresolvedcolor\!!zerocount + \ifnum\MPrgbnumber\tempMPrvalue=\MPspecialsignal\relax + \ifcase\MPrgbnumber\tempMPgvalue + \or % 1 = cmyk + \ifMPcmykcolors + \expanded{\resolveMPcmykcolor\getvalue{\@@MPSK\number\MPrgbnumber\tempMPbvalue}}\end + \fi + \or % 2 = spot + \ifMPspotcolors + \expanded{\resolveMPspotcolor\getvalue{\@@MPSP\number\MPrgbnumber\tempMPbvalue}}\end + \fi + \fi + \else + \ifx\tempMPrvalue\tempMPgvalue + \ifx\tempMPrvalue\tempMPbvalue + \expanded{\resolveMPgraycolor\tempMPbvalue}\end + \else + \expanded{\resolveMPrgbcolor\tempMPrvalue\space\tempMPgvalue\space\tempMPbvalue}\end + \fi + \else + \expanded{\resolveMPrgbcolor\tempMPrvalue\space\tempMPgvalue\space\tempMPbvalue}\end + \fi + \fi + \let#4\MPresolvedcolor + \let#5\MPresolvedspace} %D We also need to make sure that we have two \RGB\ or %D \CMYK colors, since we have to set the colorspace. -\def\setMPshadingcolors#1#2#3#4#5#6% - {\checkMPshadingcolor{#1}{#2}{#3}\MPshadeA\MPshadeAA - \checkMPshadingcolor{#4}{#5}{#6}\MPshadeB\MPshadeBB - \ifx\MPshadeA\empty - \ifx\MPshadeB\empty - \edef\MPshadeA{\gMPs{#1} \gMPs{#2} \gMPs{#3}}% - \edef\MPshadeB{\gMPs{#4} \gMPs{#5} \gMPs{#6}}% - \def \MPshadeC{RGB}% +% \def\setMPshadingcolors#1#2#3#4#5#6% +% {\checkMPshadingcolor{#1}{#2}{#3}\MPshadeA\MPshadeAA +% \checkMPshadingcolor{#4}{#5}{#6}\MPshadeB\MPshadeBB +% \ifx\MPshadeA\empty +% \ifx\MPshadeB\empty +% \edef\MPshadeA{\gMPs{#1} \gMPs{#2} \gMPs{#3}}% +% \edef\MPshadeB{\gMPs{#4} \gMPs{#5} \gMPs{#6}}% +% \def \MPshadeC{RGB}% +% \else +% \ifx\MPshadeAA\empty +% \let\MPshadeA\MPcmykWhite +% \let\MPshadeB\MPcmykBlack +% \else +% \scratchdimen\!!onepoint +% \advance\scratchdimen -\MPshadeAA\s!pt +% \edef\MPshadeA{0 0 0 \withoutpt\the\scratchdimen}% +% \fi +% \def\MPshadeC{CMYK}% +% \fi +% \else +% \ifx\MPshadeB\empty +% \ifx\MPshadeBB\empty +% \let\MPshadeA\MPcmykWhite +% \let\MPshadeB\MPcmykBlack +% \else +% \scratchdimen\!!onepoint +% \advance\scratchdimen -\MPshadeBB\s!pt +% \edef\MPshadeB{0 0 0 \withoutpt\the\scratchdimen}% +% \fi +% \fi +% \def\MPshadeC{CMYK}% +% \fi} + +\def\setMPshadingcolors#1#2#3#4#5#6% color space + {\checkMPshadingcolor{#1}{#2}{#3}\MPshadeAc\MPshadeAs + \checkMPshadingcolor{#4}{#5}{#6}\MPshadeBc\MPshadeBs + \ifx\MPshadeAs\MPshadeBs + \let\MPshadeA\MPshadeAc + \let\MPshadeB\MPshadeBc + \let\MPshadeC\MPshadeAs + \else\ifx\MPshadeAs\MPgrayspace + \ifx\MPshadeBs\MPrgbspace + \edef\MPshadeA{\MPshadeAc\space\MPshadeAc\space\MPshadeAc}% \else - \ifx\MPshadeAA\empty - \let\MPshadeA\MPcmykWhite - \let\MPshadeB\MPcmykBlack - \else - \scratchdimen=1pt\advance\scratchdimen -\MPshadeAA pt - \edef\MPshadeA{0 0 0 \withoutpt\the\scratchdimen}% - \fi - \def\MPshadeC{CMYK}% + \negatecolorcomponent\MPshadeAc + \edef\MPshadeA{0 0 0 \MPshadeAc}% \fi - \else - \ifx\MPshadeB\empty - \ifx\MPshadeBB\empty - \let\MPshadeA\MPcmykWhite - \let\MPshadeB\MPcmykBlack - \else - \scratchdimen=1pt\advance\scratchdimen -\MPshadeBB pt - \edef\MPshadeB{0 0 0 \withoutpt\the\scratchdimen}% - \fi + \let\MPshadeB\MPshadeBc + \let\MPshadeC\MPshadeBs + \else\ifx\MPshadeBs\MPgrayspace + \let\MPshadeA\MPshadeAc + \ifx\MPshadeAs\MPrgbspace + \edef\MPshadeB{\MPshadeBc\space\MPshadeBc\space\MPshadeBc}% + \else + \negatecolorcomponent\MPshadeBc + \edef\MPshadeB{0 0 0 \MPshadeBc}% \fi - \def\MPshadeC{CMYK}% - \fi} + \let\MPshadeC\MPshadeAs + \else + % different color spaces + \def\MPshadeA{1}% + \def\MPshadeB{1}% + \let\MPshadeC\MPgrayspace + \fi\fi\fi} + +\let\MPshadeA\MPcmykWhite +\let\MPshadeB\MPcmykBlack +\let\MPshadeC\MPgrayspace %D The reason why this macro is a bit complicates is that we %D handle black and white situations (otherwise we would have %D to use \CMYK\ b/w in case of a \CMYK\ shade). -\def\MPcmykBlack{0 0 0 0} -\def\MPcmykWhite{0 0 0 1} - %D Here are the special handlers: \defineMPspecial{30} @@ -613,7 +695,7 @@ /N \gMPs3>>}% \immediate\pdfobj {<</ShadingType 2 - /ColorSpace /Device\MPshadeC\space + /ColorSpace /\MPshadeC\space /Function \the\pdflastobj\space 0 R /Coords [\gMPs7 \gMPs8 \gMPs{12} \gMPs{13}] /Extend [true true]>>}% @@ -630,7 +712,7 @@ /N \gMPs3>>}% \immediate\pdfobj {<</ShadingType 3 - /ColorSpace /Device\MPshadeC\space + /ColorSpace /\MPshadeC\space /Function \the\pdflastobj\space 0 R /Coords [\gMPs7 \gMPs8 \gMPs9 \gMPs{13} \gMPs{14} \gMPs{15}] /Extend [true true]>>}% @@ -669,7 +751,7 @@ {\ifcase\pdfoutput\or % will be hooked into the special driver \doiffileelse{#7} {\doifundefinedelse{mps:x:#7} - {\immediate\pdfximage width 1bp height 1bp {#7}% + {\immediate\pdfximage\!!width1\s!bp\!!height1\s!bp{#7}% \setxvalue{mps:x:#7}{\pdfrefximage\the\pdflastximage}}% {\message{[reusing figure #7]}}% \pdfliteral{q #1 #2 #3 #4 #5 #6 cm}% @@ -708,20 +790,20 @@ \def\handleMPhyperlink#1#2#3#4#5% {%\ifcase\pdfoutput\or - \setbox\scratchbox=\hbox - {\setbox\scratchbox=\null - \scratchdimen=#1bp\scratchdimen=-\scratchdimen - \advance\scratchdimen#3bp - \wd\scratchbox=\scratchdimen - \scratchdimen=#2bp\scratchdimen=-\scratchdimen - \advance\scratchdimen#4bp - \ht\scratchbox=\scratchdimen + \setbox\scratchbox\hbox + {\setbox\scratchbox\null + \scratchdimen#1\s!bp\scratchdimen-\scratchdimen + \advance\scratchdimen#3\s!bp + \wd\scratchbox\scratchdimen + \scratchdimen#2bp\scratchdimen-\scratchdimen + \advance\scratchdimen#4\s!bp + \ht\scratchbox\scratchdimen \incolorfalse \gotobox{\box\scratchbox}[#5]}% - \setbox\scratchbox=\hbox - {\scratchdimen\MPxoffset bp \advance\scratchdimen#1bp + \setbox\scratchbox\hbox + {\scratchdimen\MPxoffset\s!bp\advance\scratchdimen#1\s!bp \hskip\scratchdimen - \scratchdimen=\MPyoffset bp \advance\scratchdimen#2bp + \scratchdimen\MPyoffset\s!bp\advance\scratchdimen#2\s!bp \raise\scratchdimen\box\scratchbox}% \smashbox\scratchbox \box\scratchbox @@ -765,7 +847,7 @@ %D {\setupcolors[cmyk=ja,status=start]\haalbuffer[cmyk]} \defineMPspecial{1} - {\ifMPcmyk + {\ifMPcmykcolors \setxvalue{\@@MPSK\gMPs1}{\gMPs2 \gMPs3 \gMPs4 \gMPs5 }% \fi} @@ -775,6 +857,30 @@ \setvalue{\@@MP03}{#3}% \setvalue{\@@MP04}{#4}} +%\defineMPspecial{2} +% {\ifMPspotcolors +% \setxvalue{\@@MPSP\gMPs1}{\gMPs2 \gMPs3 }% +% \fi} + + +\defineMPspecial{2} + {\ifMPspotcolors + \setxvalue{\@@MPSP\gMPs1}{\gMPs2 \gMPs3 }% + \checkMPspot{\gMPs2}{\gMPs3}% + \fi} + +\def\setMPspot#1 #2 % + {\setvalue{\@@MP01}{#1}% + \setvalue{\@@MP02}{#2}} + +\def\checkMPspot#1#2% + {\expanded{\resolveMPspotcolor#1 #2}\end + \ifx\MPspotspace\MPresolvedspace + \edef\MPspotspacespec{/\MPspotspace\space}% + \doifinstringelse\MPspotspacespec\currentMPcolorspaces + \donothing\registerMPcolorspace + \fi} + %D This special (number 50) passes positions to a tex file. %D This method uses a two||pass approach an (mis|)|used the %D context positioning macros. In \type {core-pos} we will @@ -825,17 +931,17 @@ \defineMPspecial{50} % x y width height label {\bgroup - \scratchdimen\MPllx bp \scratchdimen-\scratchdimen - \advance\scratchdimen\gMPs1bp + \scratchdimen\MPllx\s!bp \scratchdimen-\scratchdimen + \advance\scratchdimen\gMPs1\s!bp \edef\x{\number\scratchdimen}% - \scratchdimen\gMPs2bp \scratchdimen-\scratchdimen - \advance\scratchdimen\MPury bp + \scratchdimen\gMPs2\s!bp \scratchdimen-\scratchdimen + \advance\scratchdimen\MPury\s!bp \edef\y{\number\scratchdimen}% - \scratchdimen\gMPs3bp + \scratchdimen\gMPs3\s!bp \edef\w{\number\scratchdimen}% - \scratchdimen\gMPs4bp + \scratchdimen\gMPs4\s!bp \edef\h{\number\scratchdimen}% - \dosavepositionwhd{\gMPs5}{0}{\x}{\y}{\w}{\h}{0}% + \dosavepositionwhd{\gMPs5}0\x\y\w\h0% \egroup} %D Transparency support used specials 60 (rgb) and 61 @@ -884,23 +990,84 @@ \edef\PDFtransparencyreference {#2}% \edef\PDFtransparencycolorspecs{#3}} -\defineMPspecial{2} +\def\PDFtransparencyspec + {\ifx\MPresolvedspace\MPgrayspace + \MPresolvedcolor\space g \MPresolvedcolor\space G% + \else\ifx\MPresolvedspace\MPrgbspace + \MPresolvedcolor\space rg \MPresolvedcolor\space RG% + \else\ifx\MPresolvedspace\MPcmykspace + \MPresolvedcolor\space k \MPresolvedcolor\space K% + \else\ifx\MPresolvedspace\empty\else + /\MPresolvedspace\space cs \MPresolvedcolor\space sc + /\MPresolvedspace\space CS \MPresolvedcolor\space SC% + \fi\fi\fi\fi} + +\defineMPspecial{3} % rgb {\edef\currentMPspecial{\gMPs6}% \presetPDFtransparency{\gMPs1}{\gMPs2}% + \expanded{\resolveMPrgbcolor\gMPs3 \gMPs4 \gMPs5}\end \setevalue{\@@MPST\currentMPspecial}% was \setxvalue, bug ! {\noexpand\assignMPStransparency {\PDFtransparencyidentifier}% {\PDFtransparencyreference}% - {\gMPs3 \gMPs4 \gMPs5 rg \gMPs3 \gMPs4 \gMPs5 RG}}} + {\PDFtransparencyspec}}} -\defineMPspecial{3} +\defineMPspecial{4} % cmyk {\edef\currentMPspecial{\gMPs7}% \presetPDFtransparency{\gMPs1}{\gMPs2}% + \expanded{\resolveMPcmykcolor\gMPs3 \gMPs4 \gMPs5 \gMPs6}\end + \setevalue{\@@MPST\currentMPspecial}% was \setxvalue, bug ! + {\noexpand\assignMPStransparency + {\PDFtransparencyidentifier}% + {\PDFtransparencyreference}% + {\PDFtransparencyspec}}} + +%\defineMPspecial{5} % spot +% {\edef\currentMPspecial{\gMPs5}% +% \presetPDFtransparency{\gMPs1}{\gMPs2}% +% \expanded{\resolveMPspotcolor\gMPs3 \gMPs4}\end +% \ifx\MPspotspace\MPresolvedspace +% \edef\MPspotspacespec{/\MPspotspace\space}% +% \doifinstringelse\MPspotspacespec\currentMPcolorspaces +% \donothing\registerMPcolorspace +% \fi +% \setevalue{\@@MPST\currentMPspecial}% was \setxvalue, bug ! +% {\noexpand\assignMPStransparency +% {\PDFtransparencyidentifier}% +% {\PDFtransparencyreference}% +% {\PDFtransparencyspec}}} + +\defineMPspecial{5} % spot + {\edef\currentMPspecial{\gMPs5}% + \presetPDFtransparency{\gMPs1}{\gMPs2}% + \checkMPspot{\gMPs3}{\gMPs4}% \setevalue{\@@MPST\currentMPspecial}% was \setxvalue, bug ! {\noexpand\assignMPStransparency {\PDFtransparencyidentifier}% {\PDFtransparencyreference}% - {\gMPs3 \gMPs4 \gMPs5 \gMPs6 k \gMPs3 \gMPs4 \gMPs5 \gMPs6 K}}} + {\PDFtransparencyspec}}} + +% beware: for the moment only supported in pdftex; needs a cleanup! + +\def\registerMPcolorspace + {\doifobjectreferencefoundelse{PDFCS}\MPspotspace + {\doPDFgetobjectreference{PDFCS}\MPspotspace\PDFobjectreference + \xdef\currentMPcolorspaces + {\currentMPcolorspaces\MPspotspacespec\PDFobjectreference\space}} + \donothing} + +%D We need to add resource specifications! + +\appendtoks + \global\let\currentMPcolorspaces\empty +\to \MPstartresources + +\appendtoks + \ifx\currentMPcolorspaces\empty \else + \xdef\currentPDFresources{\currentPDFresources + /ColorSpace <<\currentMPcolorspaces>>}% + \fi +\to \MPstopresources %D For efficiency reasons, we fall back on the allocation %D mechanisms already present. For use within \MPTOPDF, we @@ -1014,7 +1181,7 @@ \def\presetPDFtransparency#1#2% {\initializePDFtransparency \@EA\ifx\csname\@@MPSTO#1:#2\endcsname\relax - \global\advance\PDFcurrenttransparency 1 + \global\advance\PDFcurrenttransparency \plusone \immediate\pdfobj{\PDFtransparencydictionary{#1}{#2}{}}% \setxvalue{\@@MPSTN#1:#2}{\the\PDFcurrenttransparency}% \setxvalue{\@@MPSTO#1:#2}{\the\pdflastobj}% @@ -1047,4 +1214,76 @@ %D In all cases, we need to keep track of the resources %D used. +%D A few auxiliary macros: + +\def\MPgrayspace{DeviceGray} +\def\MPrgbspace {DeviceRGB} +\def\MPcmykspace{DeviceCMYK} +\let\MPspotspace\MPgrayspace + +\def\MPcmykBlack{0 0 0 0} +\def\MPcmykWhite{0 0 0 1} + +\ifCONTEXT + + \def\startMPcolorresolve + {\bgroup + \def\dostartgraycolormode##1% + {\global\let\MPresolvedspace\MPgrayspace + \xdef\MPresolvedcolor{##1}}% + \def\dostartrgbcolormode ##1##2##3% + {\global\let\MPresolvedspace\MPrgbspace + \xdef\MPresolvedcolor{##1 ##2 ##3}}% + \def\dostartcmykcolormode##1##2##3##4% + {\global\let\MPresolvedspace\MPcmykspace + \xdef\MPresolvedcolor{##1 ##2 ##3 ##4}}% + \def\dostartspotcolormode##1##2% + {\global\let\MPspotspace\empty + \xdef\MPresolvedspace{##1}% + \xdef\MPresolvedcolor{##2}% + \global\let\MPspotspace\MPresolvedspace}% signal + \dostartgraycolormode\!!zerocount} % kind of hackery initialization + + \let\stopMPcolorresolve\egroup + + \def\resolveMPrgbcolor#1 #2 #3\end + {\startMPcolorresolve + \execcolorR#1:#2:#3:0:0\od + \stopMPcolorresolve} + + \def\resolveMPcmykcolor#1 #2 #3 #4\end + {\startMPcolorresolve + \execcolorC#1:#2:#3:#4:0:0\od + \stopMPcolorresolve} + + \def\resolveMPgraycolor#1\end + {\startMPcolorresolve + \execcolorS#1:0:0\od + \stopMPcolorresolve} + + \def\resolveMPspotcolor#1 #2\end + {\startMPcolorresolve + \execcolorP#1:#2:0:0\od + \stopMPcolorresolve} + +\else + + \def\resolveMPspotcolor#1 #2\end + {\global\let\MPresolvedspace\MPgrayspace + \xdef\MPresolvedcolor{0}} + + \def\resolveMPrgbcolor#1 #2 #3\end + {\global\let\MPresolvedspace\MPrgbspace + \xdef\MPresolvedcolor{#1 #2 #3}} + + \def\resolveMPcmykcolor#1 #2 #3 #4\end + {\global\let\MPresolvedspace\MPcmykspace + \xdef\MPresolvedcolor{#1 #2 #3 #4}} + + \def\resolveMPgraycolor#1\end + {\global\let\MPresolvedspace\MPgrayspace + \xdef\MPresolvedcolor{#1}} % should be inverted + +\fi + \protect \endinput |