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Diffstat (limited to 'Master/texmf-dist/tex/context/base/mkxl/meta-imp-txt.mkxl')
-rw-r--r-- | Master/texmf-dist/tex/context/base/mkxl/meta-imp-txt.mkxl | 277 |
1 files changed, 277 insertions, 0 deletions
diff --git a/Master/texmf-dist/tex/context/base/mkxl/meta-imp-txt.mkxl b/Master/texmf-dist/tex/context/base/mkxl/meta-imp-txt.mkxl new file mode 100644 index 00000000000..c7586264ec3 --- /dev/null +++ b/Master/texmf-dist/tex/context/base/mkxl/meta-imp-txt.mkxl @@ -0,0 +1,277 @@ +%D \module +%D [ file=meta-txt, +%D version=2000.07.06, +%D title=\METAPOST\ Graphics, +%D subtitle=Text Tricks, +%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. + +%D See comments in the \MKIV\ module. This is an upgraded version for \LMTX, +%D where we can so some things nicer. + +\unprotect + +%D Text in shapes. Here we use the option to prune a parshape when a new paragraph +%D is seen. It's an experimental feature so I need to keep an eye on how it evolves. +%D This time we combine \TEX, \METAPOST\ and \LUA, so we do't need a temporary file +%D to communicate from \METAPOST\ to \TEX. We just store information in \LUA\ tables. + +\ifdefined\startshapetext \else + \writestatus{system}{something is wrong here} +\fi + +%D Following: + +% \doifundefined{RotFont}{\definefont[RotFont][RegularBold*default]} +% +% \unexpanded\def\getfollowtoken#1% +% {\hbox\bgroup +% \strut +% \ctxlua{mp.follow_text(#1)}% +% \egroup} + +\definefontfeature[mp:tp][liga=no] + +% if unknown RotPath : path RotPath ; RotPath := origin ; fi ; +% if unknown TraceRot : boolean TraceRot ; TraceRot := false ; fi ; +% if unknown ExtraRot : numeric ExtraRot ; ExtraRot := 0 ; fi ; +% if al < len[n]: +% RotPath := RotPath scaled ((len[n]+ExtraRot)/al) ; +% al := arclength RotPath ; +% fi ; +% if TraceRot : +% draw RotPath withpen pencircle scaled 1pt withcolor blue ; +% fi ; +% if TraceRot : +% draw boundingbox currentpicture withpen pencircle scaled .25pt withcolor blue ; +% fi ; + +\protected\def\dofollowtokens#1#2% + {\dontleavehmode + \vpack\bgroup + \forgetall + \dontcomplain + \addff{mp:tp}% + \startMPcode + \includeMPgraphic{followtokens} + draw lmt_followtext [ path = RotPath, text = "#2", spread = #1 ] ; + \stopMPcode + \egroup} + +\protected\def\followtokens {\dofollowtokens{true}} +\protected\def\followtokenscentered{\dofollowtokens{false}} + +%D Fuzzy counters: + +\startuseMPgraphic{fuzzycount} + begingroup + save height, span, drift, d, cp ; + height := 3/ 5 * LineHeight ; + span := 1/ 3 * height ; + drift := 1/10 * height ; + pickup pencircle scaled (1/12 * height) ; + def d = (uniformdeviate drift) enddef ; + for i := 1 upto \MPvar{n} : + draw + if (i mod 5)=0 : ((-d - 4.5span,d) -- (d -0.5span,height - d)) + else : ((-d, d) -- (d, height - d)) fi + shifted (span*i,d-drift) ; + endfor; + picture cp ; cp := currentpicture ; % for readability + setbounds currentpicture to + (llcorner cp shifted (0,-ypart llcorner cp) -- + lrcorner cp shifted (0,-ypart lrcorner cp) -- + urcorner cp -- + ulcorner cp -- cycle) ; + endgroup ; +\stopuseMPgraphic + +\setupMPvariables + [fuzzycount] + [n=10] + +\protected\def\fuzzycount#1% + {\dontleavehmode\bgroup + \tx + \useMPgraphic{fuzzycount}{n=#1}% + \egroup} + +\defineconversion[fuzzy][\fuzzycount] + +%D English rules: + +\setupMPvariables + [EnglishRule] + [height=1ex, + width=\localhsize, + color=darkgray] + +\defineblank + [EnglishRule] + [medium] + +\startuniqueMPgraphic{EnglishRule}{height,width,color} + x1 = 0 ; x3 = \MPvar{width} ; x2 = x4 = .5x3 ; + y1 = y3 = 0 ; y2 = -y4 = \MPvar{height} / 2 ; + fill z1 .. z2 .. z3 & z3 .. z4 .. z1 & cycle withcolor \MPvar{color} ; +\stopuniqueMPgraphic + +\protected\def\EnglishRule + {\startlinecorrection[EnglishRule]% + \setlocalhsize + \noindentation + \reuseMPgraphic{EnglishRule}% + \stoplinecorrection} + +%D Tight text (for old times sake): the following macro returns a tight bound +%D character sequence. +%D +%D \useMPlibrary[txt] +%D +%D \startlinecorrection +%D \TightText{\ss\bf 123}{0cm}{3cm}{red} +%D \stoplinecorrection + +\protected\def\TightText#1#2#3#4% + {\hpack + {\startMPcode + picture p ; p := image (graphictext "#1" withfillcolor red) ; + draw p xsized #2 ysized #3 withcolor \MPcolor{#4} ; + \stopMPcode}} + +\protected\def\TightText#1#2#3#4% + {\dontleavehmode + \startMPcode + draw outlinetext.f ("#1") (\iftok{#4}\emptytoks \else withcolor \MPcolor{#4} \fi) + \iftok{#2}\emptytoks \else xsized #2 \fi + \iftok{#3}\emptytoks \else ysized #3 \fi + ; + \stopMPcode} + +\protect + +\continueifinputfile{meta-imp-txt.mkxl} + +\setupbodyfont[pagella,10pt] + +% \useMPlibrary[txt] + +\starttext + +%D Shapes: + +\startuseMPgraphic{test 1} + path p ; p := fullcircle scaled 6cm ; + + build_parshape(p,BodyFontSize/2,0,0,LineHeight,StrutHeight,StrutDepth,StrutHeight) ; + + draw p withpen pencircle scaled 1pt ; +\stopuseMPgraphic + +\startuseMPgraphic{test 2} + path p ; p := fullsquare rotated 45 scaled 5cm ; + + build_parshape(p,BodyFontSize/2,0,0,LineHeight,StrutHeight,StrutDepth,StrutHeight) ; + + draw p withpen pencircle scaled 1pt ; +\stopuseMPgraphic + +\startuseMPgraphic{test 3} + numeric w, h ; w := h := 6cm ; + path p ; p := (.5w,h) -- (0,h) -- (0,0) -- (w,0) & + (w,0) .. (.75w,.5h) .. (w,h) & (w,h) -- cycle ; + + build_parshape(p,BodyFontSize/2,0,0,LineHeight,StrutHeight,StrutDepth,StrutHeight) ; + + draw p withpen pencircle scaled 1pt ; +\stopuseMPgraphic + +\startuseMPgraphic{test 4} + numeric w, h, o, d ; + + def shape = (o,o) -- (w-o,o) & (w-o,o) .. (.75w-o,.5h) .. + (w-2o,h-o) & (w-2o,h-o) -- (o,h-o) -- cycle + enddef ; + + d := BodyFontSize/2; + + w := h := 6cm ; o := d ; path p ; p := shape ; + w := h := 6cm ; o := 0 ; path q ; q := shape ; + + build_parshape(p,q,d,d,LineHeight,StrutHeight,StrutDepth,StrutHeight) ; + + draw q withpen pencircle scaled 1pt ; +\stopuseMPgraphic + +\defineoverlay[test 1][\useMPgraphic{test 1}] +\defineoverlay[test 2][\useMPgraphic{test 2}] +\defineoverlay[test 3][\useMPgraphic{test 3}] +\defineoverlay[test 4][\useMPgraphic{test 4}] + +\startbuffer +\startshapetext[test 1,test 2,test 3,test 4] + \setupalign[verytolerant,stretch,normal]% + \samplefile{douglas} % Douglas R. Hofstadter +\stopshapetext +\startTEXpage[offset=10pt] + \startcombination[2*2] + {\framed[offset=overlay,frame=off,background=test 1]{\getshapetext}} {test 1} + {\framed[offset=overlay,frame=off,background=test 2]{\getshapetext}} {test 2} + {\framed[offset=overlay,frame=off,background=test 3]{\getshapetext}} {test 3} + {\framed[offset=overlay,frame=off,background=test 4]{\getshapetext}} {test 4} + \stopcombination +\stopTEXpage +\stopbuffer + +\getbuffer + +\startMPextensions + boolean trace_parshape ; trace_parshape := true ; +\stopMPextensions + +\getbuffer + +%D Fuzzycount (maybe handy): + +\startitemize[fuzzy,nostopper] + \startitem This is real fuzzy. \stopitem + \startitem But it can be even more fuzzier. \stopitem + \startitem And how about this. \stopitem +\stopitemize + +\EnglishRule + +\startitemize[continue,broad] + \startitem This is real fuzzy. \stopitem + \startitem But it can be even more fuzzier. \stopitem + \startitem And how about this. \stopitem +\stopitemize + +%D Tight text (manual stuff): + +\ruledhbox{\TightText{oeps wat doet dit}{10cm}{1cm}{red}} \blank +\ruledhbox{\TightText{oeps wat doet dit}{10cm}{} {green}} \blank +\ruledhbox{\TightText{oeps wat doet dit}{} {1cm}{blue}} \blank +\ruledhbox{\TightText{oeps wat doet dit}{} {} {}} \blank + +%D Old fashioned: + +\startuseMPgraphic{followtokens} + path RotPath ; RotPath := reverse halfcircle xyscaled 3cm ; + draw RotPath ; +\stopuseMPgraphic + +\startTEXpage + \followtokens{{\hskip1em}some text{\hskip1em}} +\stopTEXpage + +\startTEXpage + \followtokenscentered{{\hskip1em}some text{\hskip1em}} +\stopTEXpage + +\stoptext |