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%D \module
%D [ file=grph-inc, % moved from core-fig
%D version=2006.08.26, % overhaul of 1997.03.31
%D title=\CONTEXT\ Graphic Macros,
%D subtitle=Figure Inclusion,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
\writestatus{loading}{ConTeXt Graphic Macros / Figure Inclusion}
%D todo:
%D
%D - color conversion
%D - alternative images
%D - a few more obscure things
\registerctxluafile{grph-inc}{1.001}
\registerctxluafile{grph-u3d}{1.001} % this will change
\unprotect
%D The following registers are used (if only to be downward compatible).
\newbox \foundexternalfigure
\newif \iftraceexternalfigures
\newif \ifskipexternalfigures
\newtoks \everyexternalfigureresets
\newtoks \everyexternalfigurechecks
\newtoks \externalfigurepostprocessors
\let\traceexternalfigures \traceexternalfigurestrue
\def\resetfigurevariables {\the\everyexternalfigureresets}
\def\checkfigurevariables {\the\everyexternalfigurechecks}
%D Historic feature:
\appendtoks
\global\let\externalfigurelog\empty
\to \everyexternalfigureresets
\let\runutilityfiletrue \relax \let\runutilityfilefalse \relax
\let\consultutilityfiletrue\relax \let\consultutilityfilefalse\relax
%D You can register additional suffixes with the following command:
%D
%D \starttyping
%D \definegraphictypesynonym[jbig] [jb2]
%D \definegraphictypesynonym[jbig2][jb2]
%D \definegraphictypesynonym[jbg] [jb2]
%D \stoptyping
\def\definegraphictypesynonym
{\dodoubleargument\dodefinegraphictypesynonym}
\def\dodefinegraphictypesynonym[#1][#2]%
{\ctxlua{figures.registersuffix("#1","#2")}}
%D Additional paths can be installed with the regular setup command. The next
%D macro picks up the list.
\def\setfigurepathlist
{\ctxlua{figures.setpaths("\@@exlocation","\@@exdirectory")}}
%D Variables:
\def\defaultfigurewidth {8\lineheight}
\def\defaultfigureheight {6\lineheight}
\def\figurestatus {\numexpr\ctxlua{figures.tprint("status","status",0)}\relax} % number: 0 = not found
\def\figurewidth {\ctxlua{figures.tprint("status","width",0)}sp}
\def\figureheight {\ctxlua{figures.tprint("status","height",0)}sp}
\def\figurexscale {\ctxlua{figures.tprint("status","xscale",1)}}
\def\figureyscale {\ctxlua{figures.tprint("status","yscale",1)}}
\def\figurelabel {\ctxlua{figures.tprint("request","label")}}
\def\figurefileoriginal {\ctxlua{figures.tprint("request","name")}}
\def\figurefilepage {\ctxlua{figures.tprint("request","page",1)}}
\def\figurefileoptions {\ctxlua{figures.tprint("request","options")}}
\def\figurefileconversion{\ctxlua{figures.tprint("request","conversion")}}
\def\figurefilecache {\ctxlua{figures.tprint("request","cache")}}
\def\figurefileprefix {\ctxlua{figures.tprint("request","prefix")}}
\def\figurenaturalwidth {\ctxlua{figures.tprint("used","width",\number\dimexpr\defaultfigurewidth\relax)}sp}
\def\figurenaturalheight {\ctxlua{figures.tprint("used","height",\number\dimexpr\defaultfigureheight\relax)}sp}
\def\figurefilepath {\ctxlua{tex.sprint(tex.ctxcatcodes,file.dirname (figures.get("used","fullname")))}}
\def\figurefilename {\ctxlua{tex.sprint(tex.ctxcatcodes,file.nameonly(figures.get("used","fullname")))}}
\def\figurefiletype {\ctxlua{tex.sprint(tex.ctxcatcodes,file.extname (figures.get("used","fullname")))}}
\def\figurefullname {\ctxlua{figures.tprint("used","fullname")}}
\def\noffigurepages {\ctxlua{figures.tprint("used","pages",0)}}
\let\naturalfigurewidth \figurenaturalwidth
\let\naturalfigureheight \figurenaturalheight
\let\figurescalewidth \figurewidth
\let\figurescaleheight \figureheight
\let\figurescalexscale \figurexscale
\let\figurescaleyscale \figureyscale
\appendtoks
\ctxlua {
figures.setpaths("\@@exlocation","\@@exdirectory") ;
figures.defaultwidth = \number\dimexpr\defaultfigurewidth \relax ;
figures.defaultheight = \number\dimexpr\defaultfigureheight\relax ;
figures.boxnumber = \number\foundexternalfigure ;
}%
\to \everyexternalfigureresets
%D In some situations we need to make sure that the figure related variables
%D are reset. This is especially important when we are nesting. Is this still
%D needed in \MKIV.
\def\resetexternalfigures
{\let\@@efoption \empty % \let\@@efprefix\empty
\let\@@efmaxwidth \empty % \let\@@efcache \empty
\let\@@efmaxheight \empty % \let\@@efframe \v!off
\let\@@efforegroundcolor\empty
\let\@@efcolor \empty
\let\@@efconversion \empty
\let\@@efbackground \empty}
\appendtoks \resetexternalfigures \to \everyoverlay
\appendtoks \resetexternalfigures \to \everybeforepagebody % not really needed
\def\resetfigureusersettings
{%
\let\@@efmethod \empty
\let\@@eflabel \empty
\let\@@efsize \empty
\let\@@efconversion\@@exconversion
\let\@@efprefix \@@exprefix
\let\@@efcache \@@excache
\let\@@efpage \!!zerocount
\let\@@efobject \@@exobject
\let\@@efdisplay \empty
%
\let\@@efpreset \v!yes
\let\@@efsplit \empty
\let\@@efcolor \empty
%
\let\@@efsymbol \v!no
%
\let\@@efcontrols \v!no
\let\@@efpreview \v!no
\let\@@efrepeat \v!no
%
\let\@@efforegroundcolor\empty
%
\let\@@efhfactor \empty
\let\@@efwfactor \empty
\let\@@effactor \empty
\let\@@efmaxwidth \@@exmaxwidth
\let\@@efmaxheight \@@exmaxheight
\let\@@efxscale \empty
\let\@@efyscale \empty
\let\@@efscale \empty
\let\@@efsx \!!plusone
\let\@@efsy \!!plusone
\let\@@efwidth \empty
\let\@@efheight \empty
\let\@@eflines \empty
\let\@@efgrid \empty}
\resetfigureusersettings
\appendtoks
\resetfigureusersettings
\to \everyexternalfigureresets
\def\checkfigureusersettings
{% old features
\doif\@@exoption\v!frame
{\let\@@efframe\v!on}%
\doif\@@exoption\v!empty
{\skipexternalfigurestrue
\let\@@efframe\v!off}%
\doifsomething\@@efwidth {\doifdimensionelse\@@efwidth {\edef\@@efwidth {\the\dimexpr\@@efwidth }}\donothing}%
\doifsomething\@@efheight{\doifdimensionelse\@@efheight{\edef\@@efheight{\the\dimexpr\@@efheight}}\donothing}%
% fake color in gray bitmaps, assumes that
% a transparent color is used
\doifsomething\@@efforegroundcolor
{\def\@@efbackground{\v!foreground,\v!color}%
\def\@@efbackgroundcolor{\@@efforegroundcolor}}}
\appendtoks
\checkfigureusersettings
\to \everyexternalfigurechecks
%D Internal graphics are handled at the \TEX\ end:
\def\doprocesstexlikefigure#1% retrofit into mkii
{\global\setbox\foundexternalfigure\vbox\framed
[\c!strut=\v!no,\c!align=\v!normal,\c!frame=\v!off,
\c!offset=\v!overlay,\c!width=\v!fit,\c!height=\v!fit]
{\blank[\v!disable]#1\endgraf\removelastskip}} % disable should stay here!
\def\doprocessmpslikefigure#1% retrofit into mkii
{\global\setbox\foundexternalfigure\vbox{\convertMPtoPDF{#1}11}}
\def\docheckfigurebuffer #1{\doprocesstexlikefigure{\getbuffer[#1]}}
\def\docheckfiguretex #1{\doprocesstexlikefigure{\input#1\relax}}
\def\docheckfiguremps #1{\doprocessmpslikefigure{#1}}
\def\docheckfiguremprun #1#2{\doprocesstexlikefigure{\useMPrun{#1}{#2}}}
\def\doscalefigure
{\global\setbox\foundexternalfigure\vbox{\doscalebox\??ef{\dowithfigure{\box\foundexternalfigure}}}}
\newconditional\testexternalfigureonly
\def\calculateexternalfigure[#1][#2][#3][#4][#5][#6]% \cmd label filename parent_id preset current
{\dontcomplain
\restorecatcodes
\forgetall
\resetfigurevariables
\dosetefparameters{#4}{#5}{#6}%
\checkfigurevariables
% \begingroup
% \color[\@@efcolor]{\xdef\globcolorattr{\internalspotcolorname}}
% \endgroup
\ctxlua{figures.push {
name="#3",
label="#2", % todo: \@eflabel
page="\@@efpage",
size="\@@efsize",
object="\@@efobject",
prefix="\@@efprefix",
cache="\@@efcache",
format="\@@efmethod",
preset="\@@efprefix",
controls="\@@efcontrols",
preview="\@@efpreview",
display="\@@efdisplay",
color="\internalspotcolorparent\@@efcolor", % hack is needed
["repeat"]="\@@efrepeat",
width="\@@efwidth", % can be crap
height="\@@efheight", % can be crap
} }%
\ctxlua{figures.identify()}%
\ifconditional\testexternalfigureonly
\signalexternalfigure
\else
\ifcase\figurestatus
\ctxlua{figures.dummy()}%
\ctxlua{figures.scale()}%
\else
\ctxlua{figures.check()}%
\ctxlua{figures.include()}%
\ctxlua{figures.scale()}%
\fi
\ctxlua{figures.done()}%
\signalexternalfigure
\finishexternalfigure
\fi
\ctxlua{figures.pop()}}
\def\relocateexternalfigure % easier here than in lua
{\global\setbox\foundexternalfigure\vbox to \ht\foundexternalfigure\bgroup
\vss
\ht\foundexternalfigure\zeropoint
\hbox to \wd\foundexternalfigure\bgroup
\box\foundexternalfigure
\hss
\egroup
\egroup}
\def\signalexternalfigure % global
{\ifcase\figurestatus
\global\resetsystemmode\v!figure % todo, also: \v!resource
\else
\global\setsystemmode \v!figure % todo, also: \v!resource
\fi}
\def\startfoundexternalfigure#1#2%
{\global\setbox\foundexternalfigure\vbox to #2\bgroup\vss\hbox to #1\bgroup}
\def\stopfoundexternalfigure
{\hss\egroup\egroup}
\def\emptyfoundexternalfigure
{\startfoundexternalfigure\defaultfigurewidth\defaultfigureheight
\stopfoundexternalfigure}
\def\finishexternalfigure % here we use \figurevariables
{\global\setbox\foundexternalfigure\vbox
{\ifcase\figurestatus
\let\@@efframe\v!on
\fi
\ifconditional\externalfigureflush
\ifconditional\externalfigurelevel % probably background
\ifskipexternalfigures
% nothing
\fakebox\foundexternalfigure
\else\ifcase\figurestatus
% nothing
\else
\the\externalfigurepostprocessors
\box\foundexternalfigure
\fi\fi
\else
\iftrialtypesetting \else \feedbackexternalfigure \fi
\settrue\externalfigurelevel
\ifskipexternalfigures
\ifcase\figurestatus
\externalfigurereplacement\figurelabel\figurefileoriginal{unknown}%
\else
\externalfigurereplacement\figurelabel\figurefullname{skipped}%
\fi
\else\ifcase\figurestatus
\externalfigurereplacement\figurelabel\figurefileoriginal{unknown}%
\else
\the\externalfigurepostprocessors
\doifelse\@@efreset\v!yes
{\wd\foundexternalfigure\figurewidth
\ht\foundexternalfigure\figureheight
\dp\foundexternalfigure\zeropoint
\box\foundexternalfigure}
{\localframed % should also be applied to high res !
[\??ef]
[\c!offset=\v!overlay,
\c!width=\figurewidth,
\c!height=\figureheight]
{\vfilll\box\foundexternalfigure}}%
\fi\fi
\fi
\else
% maybe also \the\externalfigurepostprocessors
\iftrialtypesetting \else \feedbackexternalfigure \fi
\fi}}
\ifx\externalfigurereplacement\undefined\let\externalfigurereplacement\gobblethreearguments\fi
\ifx\externalfigureplaceholder\undefined\let\externalfigureplaceholder\gobblethreearguments\fi
\let\feedbackexternalfigure\relax % \gobblefourarguments
\let\dowithfigure \relax
\def\getfiguredimensions
{\dodoubleempty\dogetfiguredimensions}
\def\dogetfiguredimensions[#1][#2]%
{\startnointerference
\settrue\testexternalfigureonly
\externalfigure[#1][#2,\c!display=,\c!object=\v!no]%
\stopnointerference}
\let\getfiguredimensionsonly\getfiguredimensions
\def\doiffigureelse#1%
{\getfiguredimensions[#1]% so data is available !
\ifdim\figurewidth=\zeropoint % todo: \figurestatus
\expandafter\secondoftwoarguments
\else
\expandafter\firstoftwoarguments
\fi}
\def\registerexternalfigure % no placement, handy for preprocessing
{\dotripleempty\doregisterexternalfigure}
\def\doregisterexternalfigure[#1][#2][#3]%
{\startnointerference
\testexternalfigureonly
\setfalse\externalfigureflush % == test ?
\externalfigure[#1][#2][#3]% or \doexternalfigure
\externalfigure[#1][#2,\c!display=,\c!object=\v!no]%
\stopnointerference}
% figurebases
\def\usefigurebase[#1]%
{\ctxlua{figures.bases.use("#1")}}
\protect \endinput
% \startbuffer
% \definecolor [blue] [c=1,m=.38,y=0,k=.64]
% \definecolor [yellow] [c=0,m=.28,y=1,k=.06]
%
% \definespotcolor [blue-100] [blue] [p=1]
% \definespotcolor [yellow-100] [yellow] [p=1]
%
% \definemultitonecolor [combicolor] [blue=.12,yellow=.28] [c=.1,m=.1,y=.3,k=.1]
%
% \definemultitonecolor [combicolor-b] [blue=1] [c=1,m=.38,y=0,k=.64] % force multitone
% \definemultitonecolor [combicolor-y] [yellow=1] [c=0,m=.28,y=1,k=.06] % force multitone
%
% \useexternalfigure[demo-a][mill.png] [object=no,width=.2\textwidth]
% \useexternalfigure[demo-b][hacker-bw.jpg][object=no,width=.2\textwidth]
%
% \startbaselinecorrection \startcombination[4*1]
% {\externalfigure[demo-a]} {no color}
% {\externalfigure[demo-a][color=combicolor]} {indexed duotone}
% {\externalfigure[demo-a][color=combicolor-b]} {spot color}
% {\externalfigure[demo-a][color=combicolor-y]} {spot color}
% \stopcombination \stopbaselinecorrection
%
% \startbaselinecorrection \startcombination[4*1]
% {\externalfigure[demo-b]} {no color}
% {\externalfigure[demo-b][color=combicolor]} {indexed duotone}
% {\externalfigure[demo-b][color=combicolor-b]} {spot color}
% {\externalfigure[demo-b][color=combicolor-y]} {spot color}
% \stopcombination \stopbaselinecorrection
%
% \startbaselinecorrection \startcombination[4*1]
% {\externalfigure[demo-a]} {no color}
% {\externalfigure[demo-a][color=combicolor]} {indexed duotone}
% {\externalfigure[demo-a][color=blue-100]} {spot color}
% {\externalfigure[demo-a][color=yellow-100]} {spot color}
% \stopcombination \stopbaselinecorrection
%
% \startbaselinecorrection \startcombination[4*1]
% {\externalfigure[demo-b]} {no color}
% {\externalfigure[demo-b][color=combicolor]} {indexed duotone}
% {\externalfigure[demo-b][color=blue-100]} {spot color}
% {\externalfigure[demo-b][color=yellow-100]} {spot color}
% \stopcombination \stopbaselinecorrection
% \stopbuffer
%
% \getbuffer \typebuffer
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