Re: font switching questions

From: Hans Hagen <pragma@wxs.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: font switching questions
Date: Tue, 17 Mar 2009 23:27:59 +0100	[thread overview]
Message-ID: <49C023EF.9050106@wxs.nl> (raw)
In-Reply-To: <326847810903171448l5208311do3b5d440486dd8122@mail.gmail.com>

Alan Stone wrote:
> Ahoi,
> 
> Following a previous discussion, I've been advised to "try to avoid
> \switchtobodyfont and use \definedfont or \definefont instead".

what is better depends on the situation

- for a structured document using \switchtobodyfont is ok

- for special layout elements (headers, title pages, keywords) 
\definefont might be handier (esp when funny sizes are used)

- when using \definefont it can be handy to use the symbolic names 
(Serif, SansBold etc) and sizes (sa 1.2) because that makes redefinition 
easier

> (1) What's the difference between \definefont and \definedfont ?

\definefont defines a macro that represents a font, and \definedfont 
just switches to a font (the forst one is more efficient when you switch 
often)

> (2) In the underneath example...
> 
> (2a) how to implement \define(d)font for font switching ?
> 
> (2b) how to define \myFontHook ?
> 
> Thanks,
> Alan
> 
> \usemodule[t-lettrine]
> 
> \usetypescriptfile[tps_arial]
> \usetypescript[arial]

... just look how gyre typefaces are defined

> \setupbodyfont[myFont,\myFontSize]

just \setupbodyfont[myFont,12pt]

and an occasional \definefont[BigFont][SerifBold sa 3.5] which gives you 
  \BigFont

> \setuphead[chapter][style={\switchtobodyfont[myOtherFont,\myOtherFontSize]}]

it depends on what can occur in a title, if there's math and monospaced 
and whatever being used mixed, then best use a typeface (apart from the 
one time definition it's quite fast to switch a typeface)

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