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% Copyright (C) 2001-2019 Artifex Software, Inc. % All Rights Reserved. % % This software is provided AS-IS with no warranty, either express or % implied. % % This software is distributed under license and may not be copied, % modified or distributed except as expressly authorized under the terms % of the license contained in the file LICENSE in this distribution. % % Refer to licensing information at http://www.artifex.com or contact % Artifex Software, Inc., 1305 Grant Avenue - Suite 200, Novato, % CA 94945, U.S.A., +1(415)492-9861, for further information. % % PostScript LanguageLevel 3 in-RIP trapping support. ll3dict begin % We need LanguageLevel 2 or higher in order to have setuserparams and % defineresource. languagelevel dup 2 .max .setlanguagelevel % ------ Trapping ------ % % The PostScript-level trapping parameters are maintained in userdict, % and explicitly reinstalled upon restore. /Trapping mark /settrapparams dup { % <paramdict> settrapparams - /.trapparams .uservar dup length dict .copydict dup 2 index { % Stack: paramdict olddict olddict key value 2 index 2 index known { put dup } { pop pop } ifelse } forall pop dup .settrapparams % Let the operator check parameter validity. .userdict /.trapparams 3 -1 roll put pop } bind executeonly .makeoperator /.copyparams { % <obj> .copyparams <obj'> dup type /dicttype eq { dup length dict .copydict dup { .copyparams 3 copy put pop pop } forall } { dup type /arraytype eq { [ exch { .copyparams } forall ] } if } ifelse } odef /currenttrapparams dup { % - currenttrapparams <paramdict> /.trapparams .uservar .copyparams } bind executeonly .makeoperator /settrapzone dup { % - settrapzone - % ****** DUMMY ****** newpath } bind .makeoperator % Define initial (dummy) trapping parameters. % These values are mostly complete guesses. userdict /.trapparams mark /BlackColorLimit 1.0 /BlackDensityLimit 1.0 /BlackWidth 1.0 /ColorantZoneDetails 0 dict /Enabled //true /HalftoneName //null /ImageInternalTrapping //false /ImagemaskTrapping //true /ImageResolution 1 /ImageToObjectTrapping //true /ImageTrapPlacement /Center /SlidingTrapLimit 1.0 /StepLimit 1.0 /TrapColorScaling 0.0 /TrapSetName //null /TrapWidth 1.0 .dicttomark readonly put .dicttomark /ProcSet defineresource pop % Define the InkParams and TrapParams resource categories. { /InkParams /TrapParams } { /Generic /Category findresource dup maxlength 3 add dict .copydict begin /InstanceType /dicttype def currentdict end /Category defineresource pop } forall % Define the TrappingType resource category. /Generic /Category findresource dup maxlength 3 add dict .copydict begin /InstanceType /integertype def /TrappingType currentdict end /Category defineresource pop {1001} { dup /TrappingType defineresource pop } forall .setlanguagelevel end % ll3dict
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