From: Hans Hagen <j.hagen@xs4all.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: hz / expansion
Date: Mon, 2 Dec 2019 18:52:33 +0100 [thread overview]
Message-ID: <d63df951-49fe-df96-4a1d-e0c3ee45066a@xs4all.nl> (raw)
Hi,
The latest lmtx has a new feature: expansion control independent of font
specific settings. When used the font specific step stretch and shrink
will be overloaded. This permits mixed setups that are normally nor
possible because these three properties need to be consistent within a
paragraph. It also permits local deviations from the defaults, for
instance in more extreme cases.
\startluacode
local classes = fonts.expansions.classes
classes.qualityb = {
vector = "default",
factor = 1,
stretch = 8,
shrink = 4,
step = .5,
}
classes.qualitya = {
vector = "default",
factor = 1,
stretch = 4,
shrink = 2,
step = .5,
}
\stopluacode
\showframe
% \enabletrackers[*expansion]
\setupbodyfont[dejavu,8pt]
\defineexpansion
[myexpansion]
[step=1,
stretch=50,
shrink=20]
\definefontfeature [basea] [default] [expansion=qualitya]
\definefontfeature [baseb] [default] [expansion=qualityb]
\definefont[FontA][Serif*basea]
\definefont[FontB][Serif*baseb]
\setupalign[verytolerant,stretch,hz]
\starttext
\startbuffer
\dorecurse {30} {%
{\FontB \red test me #1,} \FontA \dorecurse{#1}{test ##1, }%
}\par
\stopbuffer
{\getbuffer \page}
\setexpansion[myexpansion] {\getbuffer \page}
\stoptext
Maybe it's useful (I hardly use expansion myself). Hopefully there are
no side effects.
Hans
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next reply other threads:[~2019-12-02 17:52 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-02 17:52 Hans Hagen [this message]
2019-12-05 19:01 ` Pablo Rodriguez
2019-12-07 22:51 ` Pablo Rodriguez
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