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Diffstat (limited to 'tex/context/base/mkiv/grph-inc.mkiv')
| -rw-r--r-- | tex/context/base/mkiv/grph-inc.mkiv | 788 |
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diff --git a/tex/context/base/mkiv/grph-inc.mkiv b/tex/context/base/mkiv/grph-inc.mkiv new file mode 100644 index 000000000..47274a64e --- /dev/null +++ b/tex/context/base/mkiv/grph-inc.mkiv @@ -0,0 +1,788 @@ +%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 ADE \& \CONTEXT\ Development Team}] +%C +%C This module is part of the \CONTEXT\ macro||package and is +%C therefore copyrighted by \PRAGMA. See mreadme.pdf for +%C details. + +% \enabledirectives[graphics.conversion.eps.cleanup.ai] + +% \setupexternalfigures[directory=dirfile://./test/**] +% \externalfigure[crappname(2).eps][frame=on] + +% todo: messages + +\writestatus{loading}{ConTeXt Graphic Macros / Figure Inclusion} + +\registerctxluafile{grph-inc}{1.001} +\registerctxluafile{grph-fil}{1.001} +\registerctxluafile{grph-u3d}{1.001} % this will change +\registerctxluafile{grph-swf}{1.001} % this will change + +\unprotect + +%D Including graphics is complicated by the fact that we need to locate them first, +%D optionally manipulate them and scale then next. Lookups are to be done as efficient +%D as possible and inclusion of the data might happens only once. In \MKIV\ much of this +%D is delegated to the \LUA\ end. There is nor so much less code as in \MKII\ but it's +%D more powerful, flexible, pluggable and some of the extended functionality has been +%D moved from modules to the core. The overall functionality is rather stable and has +%D not changed much over the years. + +\ifdefined\dotagfigure \else \let\dotagfigure\relax \fi + +\installcorenamespace{externalfigure} +\installcorenamespace{externalfigureinstance} +\installcorenamespace{externalfigurecollection} + +\installframedcommandhandler \??externalfigure {externalfigure} \??externalfigure + +\let\setupexternalfigures\setupexternalfigure + +\setupexternalfigures[% we really need the defaults + \c!method =, + \c!label =, + \c!size =, + \c!conversion =, + \c!resolution =, + \c!prefix =, + \c!cache =, + \c!page =\zerocount, + \c!display =, + \c!mask =, + \c!preset =\v!yes, + \c!split =, + \c!color =, + \c!symbol =\v!no, + \c!controls =\v!no, + \c!resources =, + \c!preview =\v!no + \c!repeat =\v!no + \c!foregroundcolor=, + \c!interaction =\v!none, + \c!hfactor =, + \c!wfactor =, + \c!factor =, + \c!maxwidth =\externalfigureparameter\c!width, + \c!maxheight =\externalfigureparameter\c!height, + \c!xscale =, + \c!yscale =, + \c!scale =, + \c!sx =\externalfigureparameter\c!s, + \c!sy =\externalfigureparameter\c!s, + \c!s =1, + \c!width =, + \c!height =, + \c!lines =, + \c!grid =, + \c!bodyfont =\bodyfontsize, + \c!object =\v!yes, + \c!corner =\v!rectangular, + \c!frame =\v!off, + \c!option =, + \c!reset =\v!no, + \c!directory =, + \c!radius =.5\bodyfontsize, + \c!background =, + \c!splitcolor =\s!white, + \c!order =, + \c!equalwidth =, + \c!equalheight =, + \c!location ={\v!local,\v!global}, + \c!frames =\v!off, + \c!ymax =24, + \c!xmax =, + \c!align =\v!none, % New, for Tacos extremely large graphics. + ] + +%D Defining figures. + +\newcount\c_grph_include_nesting + +\newtoks \everyexternalfigureresets % for the moment still public +\newtoks \everyexternalfigurechecks % for the moment still public + +% \useexternalfigure[alpha][koe] +% \useexternalfigure[beta] [koe] [breedte=1cm] +% \useexternalfigure[gamma][koe][alpha] +% \useexternalfigure[delta][koe][alpha][breedte=2cm] +% +% volle breedte: \externalfigure[koe] \par +% 3cm breed: \externalfigure[koe] [breedte=3cm] \par +% volle breedte: \externalfigure[alpha] \par +% 1cm breed: \externalfigure[beta] \par +% volle breedte: \externalfigure[gamma] \par +% 2cm breed: \externalfigure[delta] \par +% 4cm breed: \externalfigure[beta] [breedte=4cm] \par +% 5cm breed: \externalfigure[gamma][breedte=5cm] \par +% +% \defineexternalfigure[a][width=10cm] +% \defineexternalfigure[b][width=5cm] +% \externalfigure[cow][a] +% \externalfigure[cow][b][height=8cm] +% +% \useexternalfigure[x][cow][width=10cm,height=1cm] +% \externalfigure[x] +% \externalfigure[x][width=3cm] +% +% [label] [filename] +% [label] [filename] [parent] +% [label] [filename] [parent] [settings] +% [label] [filename] [settings] +% +% new: more convenient/efficient than +% +% \use..[a][a][setting] \externalfigure[b][a] +% +% is equivalent to: +% +% \def..[a][setting] \externalfigure[b][a] +% +% see x-res modules for usage: +% +% \defineexternalfigure[name][settings] + +%D Defining is persistent, i.e.\ when you redefine an instance, +%D the already set parameters need to be set again or otherwise +%D the old values will be used. + +%D New: \type {method=auto}: strips suffix and uses \quote {order} which is handy in +%D some of four workflows where sources are used for web and print and where +%D the web tools need a suffix (like gif) which we don't want as we want a high +%D quality format. + +\newconditional\c_grph_include_trace_inheritance + +\installtextracker + {graphics.inheritance} + {\settrue \c_grph_include_trace_inheritance} + {\setfalse\c_grph_include_trace_inheritance} + +\installcorenamespace{externalfiguredefinition} + +% \unexpanded\def\defineexternalfigure +% {\dodoubleargument\grph_include_define} +% +% \def\grph_include_define[#1][#2]% +% {\setvalue{\??externalfiguredefinition#1}{\setupcurrentexternalfigure[#2]}} + +\let\defineexternalfigures\defineexternalfigure + +\unexpanded\def\useexternalfigure + {\doquadrupleempty\grph_include_use} + +% label file parent settings +% label file settings +% label file parent + +\def\grph_include_use[#1][#2][#3][#4]% + {\doifelsenothing{#1} + {\doifsomething{#2} + {\doifelseassignment{#3} + {\grph_include_use_indeed{#2}{#2}{#3}{#4}} + {\grph_include_use_indeed{#2}{#2}\empty{#4}}}} + {\doifelsenothing{#2} + {\doifelseassignment{#3} + {\grph_include_use_indeed{#1}{#1}\empty{#3}} + {\grph_include_use_indeed{#1}{#1}{#3}{#4}}} + {\doifelseassignment{#3} + {\grph_include_use_indeed{#1}{#2}\empty{#3}} + {\grph_include_use_indeed{#1}{#2}{#3}{#4}}}}} + +\def\grph_include_use_indeed#1#2#3#4% + {\setvalue{\??externalfigureinstance#1}{\grph_include_setup{#2}{#3}{#4}}% + \grph_include_analyze_collection[#2][#4]} + +% inclusion + +\unexpanded\def\externalfigure + {\dotripleempty\grph_include_figure} + +\def\grph_include_figure[#1][#2][#3]% + {\docheckassignment{#2}% + \ifassignment + \grph_include_place[#1][][#2]% + \else + \grph_include_place[#1][#2][#3]% + \fi} + +% todo: chain them + +\def\grph_include_setup#1#2#3% name parent settings + {\edef\m_grph_include_name {#1}% + \edef\m_grph_include_parent{#2}% + \ifx\m_grph_include_name\empty \else + \let\p_grph_include_name\m_grph_include_name + \fi + \ifx\m_grph_include_parent\empty \else + \grph_include_inherit_from_parent\m_grph_include_parent + \fi + \setupcurrentexternalfigure[#3]} + +% \def\grph_include_inherit_from_parent#1% +% {\ifcsname\??externalfiguredefinition#1\endcsname +% \ifconditional\c_grph_include_trace_inheritance\c_grph_include_trace_inheritance\writestatus\m!figures{inheriting from definition: #1}\fi +% \csname\??externalfiguredefinition#1\endcsname +% \fi +% \ifcsname\??externalfigureinstance#1\endcsname +% \ifconditional\c_grph_include_trace_inheritance\c_grph_include_trace_inheritance\writestatus\m!figures{inheriting from instance: #1}\fi +% \csname\??externalfigureinstance#1\endcsname +% \fi} + +\def\grph_include_inherit_from_parent#1% + {%\ifcsname\??externalfiguredefinition#1\endcsname + % \ifconditional\c_grph_include_trace_inheritance\writestatus\m!figures{inheriting from definition: #1}\fi + % \csname\??externalfiguredefinition#1\endcsname + %\fi + \ifcsname\??externalfigure#1:\s!parent\endcsname + \let\currentexternalfigure#1% + \fi + \ifcsname\??externalfigureinstance#1\endcsname + \ifconditional\c_grph_include_trace_inheritance\writestatus\m!figures{inheriting from instance: #1}\fi + \csname\??externalfigureinstance#1\endcsname + \fi} + +\newtoks\t_grph_include_local_settings + +\appendtoks + \let\textunderscore\letterunderscore % {\string _} % space needed as _ is now letter in unprotected mode (probably no longer needed) + % + \dontcomplain + \restorecatcodes + \forgetall +\to \t_grph_include_local_settings + +\def\grph_include_place_inherit + {\ifconditional\c_grph_include_trace_inheritance + \writestatus\m!figures{label: \p_grph_include_label, name: \p_grph_include_name, parent: \p_grph_include_parent}% + \fi + \ifx\p_grph_include_parent\empty + % nothing to be done + \else\ifx\p_grph_include_parent\p_grph_include_label + % redundant + \else + \grph_include_inherit_from_parent\p_grph_include_parent + \fi\fi + \ifx\p_grph_include_label\empty + % nothing to be done + \else + \grph_include_inherit_from_parent\p_grph_include_label + \fi} + +\def\grph_include_place[#1][#2][#3]% [label][file][settings] | [file][settings] | [file][parent][settings] + {\bgroup + \advance\c_grph_include_nesting\plusone + \edef\currentexternalfigure{\the\c_grph_include_nesting}% + \checkexternalfigureparent % each inherits from the root + % + \the\everyexternalfigureresets + % + \edef\p_grph_include_label{#1}% + \let\p_grph_include_name\p_grph_include_label + \docheckassignment{#2}% + \ifassignment + % [label] [settings] + \let\p_grph_include_parent\p_grph_include_label + \grph_include_place_inherit + \setupcurrentexternalfigure[#2]% + \else + % [label] [parent] [settings] + \edef\p_grph_include_parent{#2}% + \ifx\p_grph_include_parent\empty + \let\p_grph_include_parent\p_grph_include_label + \fi + \grph_include_place_inherit + \setupcurrentexternalfigure[#3]% + \fi + % + \the\everyexternalfigurechecks + % + \the\t_grph_include_local_settings + % + \edef\p_width {\externalfigureparameter\c!width}% + \edef\p_height{\externalfigureparameter\c!height}% + \edef\p_label {\externalfigureparameter\c!label}% + % + \dostarttagged\t!image\empty + \clf_figure_push + name {\p_grph_include_name}% + label {\ifx\p_label\empty\p_grph_include_label\else\p_label\fi}% + page {\externalfigureparameter\c!page}% + size {\externalfigureparameter\c!size}% + object {\externalfigureparameter\c!object}% + prefix {\externalfigureparameter\c!prefix}% + cache {\externalfigureparameter\c!cache}% + format {\externalfigureparameter\c!method}% + preset {\externalfigureparameter\c!prefix}% + controls {\externalfigureparameter\c!controls}% + resources {\externalfigureparameter\c!resources}% + preview {\externalfigureparameter\c!preview}% + display {\externalfigureparameter\c!display}% + mask {\externalfigureparameter\c!mask}% + conversion {\externalfigureparameter\c!conversion}% + resolution {\externalfigureparameter\c!resolution}% + color {\internalspotcolorparent{\externalfigureparameter\c!color}}% hack is needed + repeat {\externalfigureparameter\c!repeat}% + \ifx\p_width\empty \else + width \dimexpr\p_width\relax + \fi + \ifx\p_height\empty \else + height \dimexpr\p_height\relax + \fi + \relax + \clf_figure_identify + \relax + \ifconditional\c_grph_include_test_only + \ifcase\figurestatus \else + \clf_figure_check + \clf_figure_dummy + \clf_figure_scale + \clf_figure_done + \fi + \grph_include_set_mode + \else + \ifcase\figurestatus + \clf_figure_dummy + \clf_figure_scale + \else + \clf_figure_check + \clf_figure_include + \clf_figure_scale + \fi + \clf_figure_done + \grph_include_set_mode + \grph_include_finalize + \fi + \clf_figure_pop + \dotagfigure + \naturalvbox attr \imageattribute 2 {\box\foundexternalfigure}% + \dostoptagged + \egroup} + +%D Scaling: + +\let\dowithfigure\relax % name might change (into a proper hook) + +\unexpanded\def\doscalefigure % used at lua end + {\global\setbox\foundexternalfigure\vpack{\scale[\v!figure]{\dowithfigure{\box\foundexternalfigure}}}} + +\definescale % some day we will inherit + [\v!figure] + [\c!hfactor =\externalfigureparameter\c!hfactor, + \c!wfactor =\externalfigureparameter\c!wfactor, + \c!factor =\externalfigureparameter\c!factor, + \c!maxwidth =\externalfigureparameter\c!maxwidth , + \c!maxheight =\externalfigureparameter\c!maxheight, + \c!equalwidth =\externalfigureparameter\c!equalwidth , + \c!equalheight=\externalfigureparameter\c!equalheight, + \c!xscale =\externalfigureparameter\c!xscale, + \c!yscale =\externalfigureparameter\c!yscale, + \c!scale =\externalfigureparameter\c!scale, + \c!sx =\externalfigureparameter\c!sx, + \c!sy =\externalfigureparameter\c!sy, + \c!s =\externalfigureparameter\c!s, + \c!width =\externalfigureparameter\c!width, + \c!height =\externalfigureparameter\c!height, + \c!lines =\externalfigureparameter\c!lines] + +% % this will become: +% +% \unexpanded\def\doscalefigure % used at lua end +% {\global\setbox\foundexternalfigure\vbox\bgroup +% \bgroup +% \let\currentscale\currentexternalfigure +% \let\scaleparameter\externalfigureparameter +% \dowithnextboxcs\grph_scale_finish\hbox{\dowithfigure{\box\foundexternalfigure}}% +% \egroup} +% +% % or even better: +% +% \def\grph_scale_inherited#1% +% {\bgroup +% \expandafter\let\expandafter\currentscale \csname current#1\endcsname +% \expandafter\let\expandafter\scaleparameter\csname #1parameter\endcsname +% \dowithnextboxcs\grph_scale_finish\hbox} +% +% \unexpanded\def\doscalefigure % used at lua end +% {\global\setbox\foundexternalfigure\vbox\bgroup +% \grph_scale_inherited{externalfigure}{\dowithfigure{\box\foundexternalfigure}}% +% \egroup} + +%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 + +\unexpanded\def\definegraphictypesynonym + {\dodoubleargument\grph_include_set_type_synonym} + +\def\grph_include_set_type_synonym[#1][#2]% + {\clf_registerfiguresuffix{#1}{#2}} + +%D Additional paths can be installed with the regular setup command. The next +%D macro picks up the list. + +\unexpanded\def\setfigurepathlist + {\clf_setfigurepaths{\externalfigureparameter\c!location}{\externalfigureparameter\c!directory}} + +%D Variables: + +\newbox \foundexternalfigure +\newtoks\externalfigurepostprocessors + +\def\defaultfigurewidth {8\lineheight} +\def\defaultfigureheight {6\lineheight} + +\def\figurestatus {\numexpr\clf_figurestatus{status}{0}\relax} % number: 0 = not found +\def\figurewidth {\clf_figurestatus{width}{0}sp} +\def\figureheight {\clf_figurestatus{height}{0}sp} +\def\figurexscale {\clf_figurestatus{xscale}{1}} +\def\figureyscale {\clf_figurestatus{yscale}{1}} + +\def\figuresize {\clf_figurerequest{size}{}} +\def\figurelabel {\clf_figurerequest{label}{}} +\def\figurefileoriginal {\clf_figurerequest{name}{}} +\def\figurefilepage {\clf_figurerequest{page}{1}} +\def\figurefileoptions {\clf_figurerequest{options}{}} +\def\figurefileconversion{\clf_figurerequest{conversion}{}} +\def\figurefilecache {\clf_figurerequest{cache}{}} +\def\figurefileprefix {\clf_figurerequest{prefix}{}} + +\def\figurenaturalwidth {\clf_figureused{width}{\number\dimexpr\defaultfigurewidth\relax}sp} +\def\figurenaturalheight {\clf_figureused{height}{\number\dimexpr\defaultfigureheight\relax}sp} +\def\figurexresolution {\clf_figureused{xresolution}{0}} +\def\figureyresolution {\clf_figureused{yresolution}{0}} +\def\figurexsize {\clf_figureused{xsize}{0}} +\def\figureysize {\clf_figureused{ysize}{0}} +\def\figurecolordepth {\clf_figureused{colordepth}{0}} +\def\figuredepth {\clf_figureused{depth}{0}} + +\def\figurefullname {\clf_figureused{fullname}{}} +\def\noffigurepages {\clf_figureused{pages}{0}} + +\def\figurefilepath {\clf_figurefilepath} +\def\figurefilename {\clf_figurefilename} +\def\figurefiletype {\clf_figurefiletype} + +\let\naturalfigurewidth \figurenaturalwidth +\let\naturalfigureheight \figurenaturalheight + +\let\figurescalewidth \figurewidth +\let\figurescaleheight \figureheight +\let\figurescalexscale \figurexscale +\let\figurescaleyscale \figureyscale + +%D Abuse: +%D +%D \starttyping +%D \externalfigure[rubish.pdf] \ifcase\figurestatus\relax \ctxlua{os.exit(999)} \fi +%D \stoptyping + +%D Calculating: + +% \enabletrackers[figures.conversion] +% \externalfigure[demo.svg] +% \externalfigure[demo.svg][conversion=png] + +%D The following registers are used (if only to be downward compatible). + +\newconditional\c_grph_include_skip +\newconditional\c_grph_include_test_only +\newconditional\c_grph_include_level \setfalse\c_grph_include_level % true=background false=normal +\newconditional\c_grph_include_flush \settrue \c_grph_include_flush % true=place false=ignore + +\newsystemmode\v!figure + +\def\grph_include_set_mode + {\ifcase\figurestatus + \global\resetsystemmode\v!figure % todo, also: \v!resource + \else + \global\setsystemmode \v!figure % todo, also: \v!resource + \fi} + +\appendtoks + \clf_setfigurepaths + {\externalfigureparameter\c!location}% + {\externalfigureparameter\c!directory}% + \clf_figure_reset + \foundexternalfigure + \defaultfigurewidth + \defaultfigureheight + \relax +\to \everyexternalfigureresets + +\appendtoks + \edef\p_option{\externalfigureparameter\c!option}% + \ifx\p_option\v!frame + \setfalse\c_grph_include_skip + \letexternalfigureparameter\c!frame\v!on + \else\ifx\p_option\v!empty + \settrue\c_grph_include_skip + \letexternalfigureparameter\c!frame\v!off + \else + \setfalse\c_grph_include_skip + \fi\fi + % fake color in gray bitmaps, assumes that + % a transparent color is used + \edef\p_foregroundcolor{\externalfigureparameter\c!foregroundcolor}% + \ifx\p_foregroundcolor\empty \else + \setexternalfigureparameter\c!background{\v!foreground,\v!color}% + \letexternalfigureparameter\c!backgroundcolor\p_foregroundcolor + \fi +\to \everyexternalfigurechecks + +%D Internal graphics are handled at the \TEX\ end: + +\def\grph_include_process_tex#1% + {\global\setbox\foundexternalfigure\vbox\framed % no \vpack + [\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! + +% used al lua end: + +\unexpanded\def\docheckfigurebuffer #1{\grph_include_process_tex{\getbuffer[#1]}} +\unexpanded\def\docheckfiguretex #1{\grph_include_process_tex{\input{#1}}} +\unexpanded\def\docheckfigurecld #1{\global\setbox\foundexternalfigure\vbox {\cldprocessfile{#1}}} +\unexpanded\def\docheckfiguremps #1{\global\setbox\foundexternalfigure\vpack{\convertMPtoPDF{#1}11}} +\unexpanded\def\docheckfiguremprun #1#2{\global\setbox\foundexternalfigure\vpack{\useMPrun{#1}{#2}}} + +\unexpanded\def\relocateexternalfigure % easier here than in lua + {\global\setbox\foundexternalfigure\vpack to \ht\foundexternalfigure\bgroup + \vss + \ht\foundexternalfigure\zeropoint + \hpack to \wd\foundexternalfigure\bgroup + \box\foundexternalfigure + \hss + \egroup + \egroup} + +\unexpanded\def\startfoundexternalfigure#1#2% ht wd + {\global\setbox\foundexternalfigure\vbox to #2\bgroup\vss\hbox to #1\bgroup} + +\unexpanded\def\stopfoundexternalfigure + {\hss\egroup\egroup} + +\unexpanded\def\emptyfoundexternalfigure % sort of obsolete + {\startfoundexternalfigure\defaultfigurewidth\defaultfigureheight + \stopfoundexternalfigure} + +% \doifmodeelse{*\v!last} +% {\settrue \c_grph_include_flush} +% {\setfalse\c_grph_include_flush}% + +\def\grph_include_finalize + {\global\setbox\foundexternalfigure\vbox + {\ifcase\figurestatus + \letexternalfigureparameter\c!frame\v!on + \fi + \ifconditional\c_grph_include_flush + \ifconditional\c_grph_include_level % probably background + \ifconditional\c_grph_include_skip + % nothing + \fakebox\foundexternalfigure + \else\ifcase\figurestatus + % nothing + \else + \the\externalfigurepostprocessors + \box\foundexternalfigure + \fi\fi + \else + \iftrialtypesetting \else \feedbackexternalfigure \fi + \settrue\c_grph_include_level + \ifconditional\c_grph_include_skip + \ifcase\figurestatus + \grph_include_replacement\figurelabel\figurefileoriginal{unknown}% + \else + \grph_include_replacement\figurelabel\figurefullname{skipped}% + \fi + \else\ifcase\figurestatus + \grph_include_replacement\figurelabel\figurefileoriginal{unknown}% + \else + \the\externalfigurepostprocessors + \edef\p_reset{\externalfigureparameter\c!reset}% + \ifx\p_reset\v!yes + \wd\foundexternalfigure\figurewidth + \ht\foundexternalfigure\figureheight + \dp\foundexternalfigure\zeropoint + \box\foundexternalfigure + \else + \letexternalfigureparameter\c!offset\v!overlay + \letexternalfigureparameter\c!width \figurewidth + \letexternalfigureparameter\c!height\figureheight +% \letexternalfigureparameter\c!align \v!middle +% \letexternalfigureparameter\c!autowidth\v!no + \inheritedexternalfigureframed{\box\foundexternalfigure}% + \fi + \fi\fi + \fi + \else + % maybe also \the\externalfigurepostprocessors + \iftrialtypesetting \else \feedbackexternalfigure \fi + \fi}} + +\let\feedbackexternalfigure\relax % hook + +\unexpanded\def\getfiguredimensions + {\dodoubleempty\grph_include_get_dimensions} + +\def\grph_include_get_dimensions[#1][#2]% + {\startnointerference + \settrue\c_grph_include_test_only + \externalfigure[#1][#2,\c!display=,\c!mask=,\c!object=\v!no]% + \stopnointerference} + +\unexpanded\def\doifelsefigure#1% + {\getfiguredimensions[#1]% so data is available ! + \ifcase\figurestatus + \expandafter\secondoftwoarguments + \else + \expandafter\firstoftwoarguments + \fi} + +\let\doiffigureelse\doifelsefigure + +% No placement, handy for preprocessing: + +\unexpanded\def\registerexternalfigure + {\dotripleempty\grph_include_register} + +\def\grph_include_register[#1][#2][#3]% + {\startnointerference + \c_grph_include_test_only + \setfalse\c_grph_include_flush % == test ? + \externalfigure[#1][#2][#3]% or + \externalfigure[#1][#2,\c!display=,\c!mask=,\c!object=\v!no]% + \stopnointerference} + +% Helpers (will be replaced when xforms are accessible at the lua end) + +\unexpanded\def\dosetfigureobject#1% + {\setobject{FIG}{#1}\vpack{\box\foundexternalfigure}} + +\unexpanded\def\doboxfigureobject#1% + {\global\setbox\foundexternalfigure\vpack{\getobject{FIG}{#1}}} % probably one vbox too many + +% Figure bases + +\unexpanded\def\usefigurebase[#1]% + {\clf_usefigurebase{#1}} + +\appendtoks + \setfigurepathlist % the path may be used elsewhere too (as in x-res-04) +\to \everysetupexternalfigure + +\appendtoks + \clf_setfigurelookuporder{\externalfigureparameter\c!order}% +\to \everysetupexternalfigure + +\definecolor[missingfigurecolor][s=.8] + +\def\grph_include_replacement#1#2#3% + {\bgroup + \letexternalfigureparameter\c!width\figurewidth + \letexternalfigureparameter\c!height\figureheight + \letexternalfigureparameter\c!background\v!color + \setexternalfigureparameter\c!backgroundcolor{missingfigurecolor}% + \setexternalfigureparameter\c!align{\v!middle,\v!lohi}% we default to \v!none + \inheritedexternalfigureframed + {\tt\tfxx \nohyphens + name: \expanded{\verbatimstring{#1}}\\% + file: \expanded{\verbatimstring{#2}}\\% + state: \expanded{\verbatimstring{#3}}}% + \egroup} + +% maybe setuphandler + +\newconditional\c_grph_include_in_collection + +\newdimen\d_grph_include_collection_minwidth +\newdimen\d_grph_include_collection_maxwidth +\newdimen\d_grph_include_collection_minheight +\newdimen\d_grph_include_collection_maxheight + +\def\grph_include_analyze_collection[#1][#2]% + {\ifconditional\c_grph_include_in_collection + \setfalse\c_grph_include_in_collection + \getfiguredimensions[#1][#2]% + \settrue\c_grph_include_in_collection + \scratchdimen\naturalfigurewidth + \ifdim\scratchdimen>\d_grph_include_collection_maxwidth \d_grph_include_collection_maxwidth \scratchdimen \fi + \ifdim\scratchdimen<\d_grph_include_collection_minwidth \d_grph_include_collection_minwidth \scratchdimen \fi + \scratchdimen\naturalfigureheight + \ifdim\scratchdimen>\d_grph_include_collection_maxheight \d_grph_include_collection_maxheight\scratchdimen \fi + \ifdim\scratchdimen<\d_grph_include_collection_minheight \d_grph_include_collection_minheight\scratchdimen \fi + \fi} + +\unexpanded\def\startexternalfigurecollection[#1]% + {\begingroup + \def\currentexternalfigurecollection{#1}% + \settrue\c_grph_include_in_collection + \d_grph_include_collection_minwidth \maxdimen + \d_grph_include_collection_maxwidth \zeropoint + \d_grph_include_collection_minheight\maxdimen + \d_grph_include_collection_maxheight\zeropoint} + +\unexpanded\def\stopexternalfigurecollection + {\setxvalue{\??externalfigurecollection\currentexternalfigurecollection:\c!minwidth }{\the\d_grph_include_collection_minwidth }% + \setxvalue{\??externalfigurecollection\currentexternalfigurecollection:\c!maxwidth }{\the\d_grph_include_collection_maxwidth }% + \setxvalue{\??externalfigurecollection\currentexternalfigurecollection:\c!minheight}{\the\d_grph_include_collection_minheight}% + \setxvalue{\??externalfigurecollection\currentexternalfigurecollection:\c!maxheight}{\the\d_grph_include_collection_maxheight}% + \endgroup} + +\def\externalfigurecollectionparameter#1#2% + {\csname + \ifcsname\??externalfigurecollection#1:#2\endcsname + \??externalfigurecollection#1:#2% + \else + \s!empty + \fi + \endcsname} + +\def\externalfigurecollectionminwidth #1{\externalfigurecollectionparameter{#1}\c!minwidth } +\def\externalfigurecollectionmaxwidth #1{\externalfigurecollectionparameter{#1}\c!maxwidth } +\def\externalfigurecollectionminheight#1{\externalfigurecollectionparameter{#1}\c!minheight} +\def\externalfigurecollectionmaxheight#1{\externalfigurecollectionparameter{#1}\c!maxheight} + +\let\efcparameter\externalfigurecollectionparameter % still needed ? +\let\efcminwidth \externalfigurecollectionminwidth % still needed ? +\let\efcmaxwidth \externalfigurecollectionmaxwidth % still needed ? +\let\efcminheight\externalfigurecollectionminheight % still needed ? +\let\efcmaxheight\externalfigurecollectionmaxheight % still needed ? + +% \startexternalfigurecollection[name] +% \useexternalfigure[cow] [cow.pdf] +% \useexternalfigure[mill][mill.png] +% \stopexternalfigurecollection +% \starttext +% \bTABLE +% \bTR +% \bTD \externalfigure[cow] [height=\externalfigurecollectionmaxheight{name}] \eTD +% \bTD \externalfigure[mill][height=\externalfigurecollectionmaxheight{name}] \eTD +% \eTR +% \eTABLE +% \stoptext + +\unexpanded\def\showexternalfigures + {\writestatus\m!system{the \string\showexternalfigures\space command is not (yet) implemented in mkiv}} + +\unexpanded\def\overlayfigure#1% + {\externalfigure[#1][\c!width=\d_overlay_width,\c!height=\d_overlay_height]} + +% Bonus: + +\useexternalfigure + [buffer] + [\jobname.buffer] + [\c!object=\v!no] + +\protect \endinput |