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if not modules then modules = { } end modules ['spac-adj'] = {
version = 1.001,
comment = "companion to spac-adj.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
-- sort of obsolete code
local a_vadjust = attributes.private('graphicvadjust')
local nodecodes = nodes.nodecodes
local hlist_code = nodecodes.hlist
local vlist_code = nodecodes.vlist
local remove_node = nodes.remove
local hpack_node = node.hpack
local vpack_node = node.vpack
function nodes.handlers.graphicvadjust(head,groupcode) -- we can make an actionchain for mvl only
if groupcode == "" then -- mvl only
local h, p, done = head, nil, false
while h do
local id = h.id
if id == hlist_code or id == vlist_code then
local a = h[a_vadjust]
if a then
if p then
local n
head, h, n = remove_node(head,h)
local pl = p.list
if n.width ~= 0 then
n = hpack_node(n,0,'exactly') -- todo: dir
end
if pl then
pl.prev = n
n.next = pl
end
p.list = n
done = true
else
-- can't happen
end
else
p = h
h = h.next
end
else
h = h.next
end
end
return head, done
else
return head, false
end
end
interfaces.implement {
name = "enablegraphicvadjust",
onlyonce = true,
actions = function()
nodes.tasks.enableaction("finalizers","nodes.handlers.graphicvadjust")
end
}
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