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authorKarl Berry <karl@freefriends.org>2020-03-05 00:48:46 +0000
committerKarl Berry <karl@freefriends.org>2020-03-05 00:48:46 +0000
commitf210bce174e1f2f05305ab03e88e120a1cbfc4da (patch)
tree5c4e2ad096b5c745e859516ac3196fa0864292d5 /Master/texmf-dist/doc/context/sources/general/manuals/luametafun/luametafun-text.tex
parent35fd641a3546acc0c62e0aa7f134888e36da30d4 (diff)
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+% language=us
+
+\environment luametafun-style
+
+\startcomponent luametafun-text
+
+\startchapter[title={Text}]
+
+The \METAFUN\ \type {textext} command normally can do the job of typesetting a
+text snippet quite well.
+
+\startbuffer
+\startMPcode
+ fill fullcircle xyscaled (8cm,1cm) withcolor "darkred" ;
+ draw textext("\bf This is text A") withcolor "white" ;
+\stopMPcode
+\stopbuffer
+
+\typebuffer[option=TEX]
+
+We get:
+
+\startlinecorrection
+\getbuffer
+\stoplinecorrection
+
+You can use regular \CONTEXT\ commands, so this is valid:
+
+\startbuffer
+\startMPcode
+ fill fullcircle xyscaled (8cm,1cm) withcolor "darkred" ;
+ draw textext("\framed{\bf This is text A}") withcolor "white" ;
+\stopMPcode
+\stopbuffer
+
+\typebuffer[option=TEX]
+
+Of course you can as well draw a frame in \METAPOST\ but the \type {\framed}
+command has more options, like alignments.
+
+\startlinecorrection
+\getbuffer
+\stoplinecorrection
+
+Here is a variant using the \METAFUN\ interface:
+
+\startbuffer
+\startMPcode
+ fill fullcircle xyscaled (8cm,1cm) withcolor "darkred" ;
+ draw lmt_text [
+ text = "This is text A",
+ color = "white",
+ style = "bold"
+ ] ;
+\stopMPcode
+\stopbuffer
+
+\typebuffer[option=TEX]
+
+The outcome is more or less the same:
+
+\startlinecorrection
+\getbuffer
+\stoplinecorrection
+
+Here is another example. The \type {format} option is actually why this command
+is provided.
+
+\startbuffer
+\startMPcode
+ fill fullcircle xyscaled (8cm,1cm) withcolor "darkred" ;
+ draw lmt_text [
+ text = decimal 123.45678,
+ color = "white",
+ style = "bold",
+ format = "@0.3F",
+ ] ;
+\stopMPcode
+\stopbuffer
+
+\typebuffer[option=TEX]
+
+\startlinecorrection
+\getbuffer
+\stoplinecorrection
+
+The following parameters can be set:
+
+\starttabulate[|T|T|T|p|]
+\FL
+\BC name \BC type \BC default \BC comment \NC \NR
+\ML
+\NC offset \NC numeric \NC 0 \NC \NC \NR
+\NC strut \NC string \NC auto \NC adapts the dimensions to the font (\type {yes} uses the the default strut) \NC \NR
+\NC style \NC string \NC \NC \NC \NR
+\NC color \NC string \NC \NC \NC \NR
+\NC text \NC string \NC \NC \NC \NR
+\NC anchor \NC string \NC \NC one of these \type {lft}, \type {urt} like anchors \NC \NR
+\NC format \NC string \NC \NC a format specifier using \type {@} instead of a percent sign \NC \NR
+\NC position \NC pair \NC origin \NC \NC \NR
+\NC trace \NC boolean \NC false \NC \NC \NR
+\LL
+\stoptabulate
+
+The next example demonstrates the positioning options:
+
+\startbuffer
+\startMPcode
+ fill fullcircle xyscaled (8cm,1cm) withcolor "darkblue" ;
+ fill fullcircle scaled .5mm withcolor "white" ;
+ draw lmt_text [
+ text = "left",
+ color = "white",
+ style = "bold",
+ anchor = "lft",
+ position = (-1mm,2mm),
+ ] ;
+ draw lmt_text [
+ text = "right",
+ color = "white",
+ style = "bold",
+ anchor = "rt",
+ offset = 3mm,
+ ] ;
+\stopMPcode
+\stopbuffer
+
+\typebuffer[option=TEX]
+
+\startlinecorrection
+\getbuffer
+\stoplinecorrection
+
+
+\stopchapter
+
+\stopcomponent