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authorKarl Berry <karl@freefriends.org>2016-04-22 22:14:39 +0000
committerKarl Berry <karl@freefriends.org>2016-04-22 22:14:39 +0000
commitfc4466b32ed330a956ac603b00fd145524cff49a (patch)
tree2c50e2b8de13aa9233b2c76dffe201558f169e86 /Master/texmf-dist/tex/context/base/meta-imp-dum.mkiv
parent50e2368597d5f6fe2057195d0ae6a9f2044923e4 (diff)
context (22apr16)
git-svn-id: svn://tug.org/texlive/trunk@40691 c570f23f-e606-0410-a88d-b1316a301751
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-%D \module
-%D [ file=meta-dum,
-%D version=2003.03.21,
-%D title=\METAPOST\ Graphics,
-%D subtitle=Dummy (External) Graphics,
-%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.
-
-\unprotect
-
-%D This library overloads the normal external figure
-%D placeholder by a nicer one.
-%D
-%D \startbuffer
-%D \useMPlibrary[dum]
-%D
-%D \startlinecorrection
-%D \externalfigure[unknown-a][width=3cm,height=1cm]
-%D \stoplinecorrection
-%D
-%D \startlinecorrection
-%D \externalfigure[unknown-b][width=4cm,height=5cm]
-%D \stoplinecorrection
-%D \stopbuffer
-%D
-%D \typebuffer \getbuffer
-
-% currently preparempvariables is unable to resolve number
-% fractions like reduction
-
-% June 22, 2003, this definition was patched to adapt itself
-% to transparent colors, but ... in 2011 we no longer have
-% is_transparent so we revert.
-%
-% \startuseMPgraphic{placeholder}{width,height,reduction,color}
-% numeric w, h, d, r ; color c, b, cc ; path p ; boolean t ;
-% t := is_transparent(\MPvar{color}) ;
-% c := not_transparent(\MPvar{color}) ;
-% b := not_transparent(white) ;
-% w := \MPvar{width} ;
-% h := \MPvar{height} ;
-% r := \MPvar{reduction} ;
-% d := max(w,h) ;
-% p := unitsquare xyscaled (w,h) ;
-% cc := r[.5c,b] ;
-% fill p withcolor if t : transparent(1,.5,cc) else : cc fi ;
-% for i := 1 upto 60 :
-% cc := r[c randomized(.3,.9),b] ;
-% fill fullcircle
-% scaled (d/5 randomized (d/5))
-% shifted (center p randomized (d))
-% withcolor if t : transparent(1,.5,cc) else : cc fi ;
-% endfor ;
-% clip currentpicture to p ;
-% \stopuseMPgraphic
-
-\startuseMPgraphic{figure:placeholder}{width,height,reduction,color}
- begingroup ;
- save w, h, d, r, p, c, b ;
- numeric w, h, d, r ; path p ;
- if cmykcolor \MPvar{color} :
- cmykcolor c, b ; b := (0,0,0,0)
- else :
- color c, b ; ; b := (1,1,1)
- fi ;
- c := \MPvar{color} ;
- w := \MPvar{width} ;
- h := \MPvar{height} ;
- r := \MPvar{reduction} ;
- d := max(w,h) ;
- p := unitsquare xyscaled (w,h) ;
- fill p withcolor r[.5c,b] ;
- for i := 1 upto 60 :
- fill fullcircle
- scaled (d/5 randomized (d/5))
- shifted (center p randomized (d))
- withcolor r[c randomized(.3,.9),b] ;
- endfor ;
- clip currentpicture to p ;
- endgroup ;
-\stopuseMPgraphic
-
-\defineoverlay
- [figure:placeholder:graphic]
- [\useMPgraphic
- {figure:placeholder}%
- {width=\figurewidth,%
- height=\figureheight,%
- reduction=\externalfigureparameter\c!reduction,%
- color=placeholder:\the\c_grph_replacement_n}]
-
-\definepalet
- [placeholder]
- [1=red,2=green,3=blue,4=cyan,5=magenta,6=yellow]
-
-\newcount\c_grph_replacement_n
-
-\setupexternalfigures
- [\c!reduction=0,
- \c!text=\v!yes]
-
-\let\grph_include_replacement_saved\grph_include_replacement
-
-\unexpanded\def\grph_include_replacement#1#2#3%
- {\begingroup
- \getpaletsize[placeholder]%
- \ifnum\c_grph_replacement_n=\zerocount
- \getrandomnumber \m_grph_replacement_n\plusone\paletsize
- \global\c_grph_replacement_n \m_grph_replacement_n\relax
- \else
- \global\advance\c_grph_replacement_n\plusone
- \fi
- \ifnum\c_grph_replacement_n>\paletsize
- \global\c_grph_replacement_n\plusone
- \fi
- \setupcurrentexternalfigure
- [\c!width=\figurewidth,
- \c!height=\figureheight,
- \c!frame=\v!off,
- \c!strut=\v!no,
- \c!align={\v!middle,\v!lohi},
- \c!background=figure:placeholder:graphic,
- \c!foregroundcolor=\s!white]%
- \doifelse{\externalfigureparameter\c!text}\v!yes
- {\edef\m_graphics_text_a{#1}\edef\m_graphics_text_a{\ifx\m_graphics_text_a\s!dummy\else\detokenize\expandafter{\m_graphics_text_a}\fi}%
- \edef\m_graphics_text_b{#2}\edef\m_graphics_text_b{\ifx\m_graphics_text_b\s!dummy\else\detokenize\expandafter{\m_graphics_text_b}\fi}%
- \edef\m_graphics_text_c{#3}\edef\m_graphics_text_c{\ifx\m_graphics_text_c\s!dummy\else\detokenize\expandafter{\m_graphics_text_c}\fi}%
- \infofont\setupinterlinespace\dohyphens
- \inheritedexternalfigureframed{\directsetup{figure:placeholder:text}}}%
- {\inheritedexternalfigureframed{}}%
- \endgroup}
-
-\unexpanded\def\dummyfigure
- {\externalfigure[placeholder]}
-
-\startsetups figure:placeholder:text
- \ifx\m_graphics_text_a\empty\else
- \strut name: \m_graphics_text_a\par
- \fi
- \ifx\m_graphics_text_b\empty\else
- \strut
- \ifx\m_graphics_text_a\empty
- \ifx\m_graphics_text_c\empty
- \else
- file:\space
- \fi
- \else
- file:\space
- \fi
- \m_graphics_text_b\par
- \fi
- \ifx\m_graphics_text_c\empty\else
- \strut state: \m_graphics_text_c\par
- \fi
-\stopsetups
-
-%D \starttyping
-%D \externalfigure[mediashow.swf][comment={Alas, we have no nice preview},background=figure:comment]
-%D \externalfigure[mediashow.swf][comment={Alas, we have no nice preview},background=figure:dummy]
-%D \externalfigure[mediashow.swf][background=figure:dummy]
-%D \stoptyping
-
-\defineframed
- [figurecomment]
- [\c!background=\v!color,
- \c!backgroundcolor=\s!gray,
- \c!frame=\v!off,
- \c!foregroundstyle=\ttbf,
- \c!align={\v!middle,\v!lohi},
- \c!height=\figureheight,
- \c!width=\figurewidth]
-
-\defineframed
- [figuredummy]
- [\c!background=figure:dummy:only,
- \c!foregroundcolor=\s!white,
- \c!backgroundcolor=\v!gray,
- \c!frame=\v!off,
- \c!foregroundstyle=\ttbf,
- \c!align={\v!middle,\v!lohi},
- \c!height=\figureheight,
- \c!width=\figurewidth]
-
-\defineoverlay
- [figure:dummy:only]
- [\grph_include_replacement\empty\empty\empty]
-
-\defineoverlay
- [figure:comment]
- [\figurecomment{\externalfigureparameter\c!comment}]
-
-\defineoverlay
- [figure:dummy]
- [\figuredummy{\externalfigureparameter\c!comment}]
-
-\setupexternalfigures
- [\c!comment=]
-
-\protect
-
-\continueifinputfile{meta-imp-dum.mkiv}
-
-\starttext
-
- \externalfigure[whatever-missing]
-
- \blank
-
- \externalfigure[whatever-missing][width=2cm]
-
-\stoptext