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%D \module
%D [ file=typo-drp, % was typo-par
%D version=2011.10.27,
%D title=\CONTEXT\ Typesetting Macros,
%D subtitle=Initials,
%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.
\writestatus{loading}{ConTeXt Typesetting Macros / Initials}
%D This will change ... par specific attribute set and such.
\unprotect
\registerctxluafile{typo-drp}{1.001}
\definesystemattribute[initial][public]
\appendtoks
\attribute\initialattribute\attributeunsetvalue
\to \everyforgetall
%D For the moment here: dropped caps redone. In addition to the
%D parameters shown in the example you can use the \type {style} and
%D more low level \type {font} keys to set up the font where
%D the first one wins. If you don't like the behaviour you can always
%D roll out your own command.
%D
%D \starttyping
%D \placeinitial \input ward \par \input ward \par \placeinitial \input tufte
%D
%D \setupinitial
%D [location=text,
%D n=2,
%D color=darkred,
%D distance=-1em,
%D hoffset=1em,
%D voffset=-3ex,
%D before=\blank]
%D
%D \placeinitial \input ward \par \input ward \placeinitial \input tufte
%D \stoptyping
% todo: angle (once we can set parshape at the Lua end)
\installcorenamespace{initial}
\installcommandhandler \??initial {initial} \??initial
\definemeasure[initial:n][\lineheight*\initialparameter\c!n - \strutdp]
\setupinitial
[\c!location=\v!text,
\c!n=3,
% \s!font=Bold sa 4,
% \s!font=Bold ht \measure{initial:n},
\s!font=Bold cp \measure{initial:n},
\c!distance=.125\emwidth,
\c!hoffset=\zeropoint,
\c!voffset=\v!line, % \dimexp\lineheight*\initialparameter\c!n-\lineheight\relax]
\c!style=,
\c!color=,
\c!before=\blank]
\unexpanded\def\placeinitial
{\dosingleempty\typo_initials_place}
\def\typo_initials_place[#1]% old command
{\par
\namedinitialparameter{#1}\c!before
\setinitial[#1]}
\unexpanded\def\setinitial
{\dosingleempty\typo_initials_set}
\unexpanded\def\typo_initials_set[#1]%
{\edef\typo_initial_handle{\typo_initial_handle_indeed{#1}}}
\unexpanded\def\typo_initial_handle_indeed#1%
{\dontleavehmode
\begingroup
\edef\currentinitial{#1}%
\scratchcounter \initialparameter\c!n\relax
\scratchdistance\initialparameter\c!distance\relax
\scratchhoffset \initialparameter\c!hoffset \relax
\edef\p_voffset{\initialparameter\c!voffset}%
\scratchvoffset\dimexpr\ifx\p_voffset\v!line\scratchcounter\lineheight-\lineheight\else\p_voffset\fi\relax
\resetfontfeature % might be needed in more places
\doifelsenothing{\initialparameter\c!style}
{\definedfont[\initialparameter\s!font]}
{\useinitialstyleparameter\c!style}%
\useinitialcolorparameter\c!color
\ctxcommand{setinitial{
location = "\initialparameter\c!location",
enabled = true,
n = \number\scratchcounter,
distance = \number\scratchdistance,
hoffset = \number\scratchhoffset,
voffset = \number\scratchvoffset,
ma = \the\attribute\colormodelattribute ,
ca = \the\attribute\colorattribute ,
ta = \the\attribute\transparencyattribute,
font = \fontid\font,
dynamic = \number\attribute\zerocount, % it's a bit over the top to support this here
}}%
\stopluacode
\kern\zeropoint % we need a node
\endgroup
\globallet\typo_initial_handle\relax}
\let\typo_initial_handle\relax
\protect \endinput
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