diff options
Diffstat (limited to 'tex/context/base/trac-jus.lua')
| -rw-r--r-- | tex/context/base/trac-jus.lua | 71 |
1 files changed, 16 insertions, 55 deletions
diff --git a/tex/context/base/trac-jus.lua b/tex/context/base/trac-jus.lua index 9d99f059d..38220a752 100644 --- a/tex/context/base/trac-jus.lua +++ b/tex/context/base/trac-jus.lua @@ -15,19 +15,16 @@ local a_alignstate = attributes.private("alignstate") local a_justification = attributes.private("justification") local tracers = nodes.tracers -local setcolor = tracers.colors.set -local settransparency = tracers.transparencies.set +local tracedrule = tracers.rule local new_rule = nodes.pool.rule +local new_hlist = nodes.pool.hlist local new_glue = nodes.pool.glue local new_kern = nodes.pool.kern -local concat_nodes = nodes.concat -local hpack_nodes = node.hpack -local copy_node = node.copy local get_list_dimensions = node.dimensions local hlist_code = nodes.nodecodes.hlist -local tex_set_attribute = tex.setattribute +local texsetattribute = tex.setattribute local unsetvalue = attributes.unsetvalue local min_threshold = 0 @@ -36,14 +33,14 @@ local max_threshold = 0 local function set(n) nodes.tasks.enableaction("mvlbuilders", "typesetters.checkers.handler") nodes.tasks.enableaction("vboxbuilders","typesetters.checkers.handler") - tex_set_attribute(a_justification,n or 1) + texsetattribute(a_justification,n or 1) function typesetters.checkers.set(n) - tex_set_attribute(a_justification,n or 1) + texsetattribute(a_justification,n or 1) end end local function reset() - tex_set_attribute(a_justification,unsetvalue) + texsetattribute(a_justification,unsetvalue) end checkers.set = set @@ -74,58 +71,22 @@ function checkers.handler(head) if naturalwidth == 0 or delta == 0 then -- special box elseif delta >= max_threshold then - local rule = new_rule(delta,naturalheight,naturaldepth) - list = hpack_nodes(list,width,"exactly") - if list.glue_set == 1 then - setcolor(rule,"trace:dr") - settransparency(rule,"trace:dr") - else - setcolor(rule,"trace:db") - settransparency(rule,"trace:db") - end - rule = hpack_nodes(rule) - rule.width = 0 - rule.height = 0 - rule.depth = 0 - current.list = concat_nodes { list, rule } - -- current.list = concat_nodes { list, new_kern(-naturalwidth+width), rule } + local rule = tracedrule(delta,naturalheight,naturaldepth,list.glue_set == 1 and "trace:dr"or "trace:db") + current.list = list .. new_hlist(rule) elseif delta <= min_threshold then local alignstate = list[a_alignstate] if alignstate == 1 then - local rule = new_rule(-delta,naturalheight,naturaldepth) - setcolor(rule,"trace:dc") - settransparency(rule,"trace:dc") - rule = hpack_nodes(rule) - rule.height = 0 - rule.depth = 0 - rule.width = 0 - current.list = nodes.concat { rule, list } + local rule = tracedrule(-delta,naturalheight,naturaldepth,"trace:dc") + current.list = new_hlist(rule) .. list elseif alignstate == 2 then - local rule = new_rule(-delta/2,naturalheight,naturaldepth) - setcolor(rule,"trace:dy") - settransparency(rule,"trace:dy") - rule = hpack_nodes(rule) - rule.width = 0 - rule.height = 0 - rule.depth = 0 - current.list = concat_nodes { copy_node(rule), list, new_kern(delta/2), rule } + local rule = tracedrule(-delta/2,naturalheight,naturaldepth,"trace:dy") + current.list = new_hlist(rule^1) .. list .. new_kern(delta/2) .. new_hlist(rule) elseif alignstate == 3 then - local rule = new_rule(-delta,naturalheight,naturaldepth) - setcolor(rule,"trace:dm") - settransparency(rule,"trace:dm") - rule = hpack_nodes(rule) - rule.height = 0 - rule.depth = 0 - current.list = concat_nodes { list, new_kern(delta), rule } + local rule = tracedrule(-delta,naturalheight,naturaldepth,"trace:dm") + current.list = list .. new_kern(delta) .. new_hlist(rule) else - local rule = new_rule(-delta,naturalheight,naturaldepth) - setcolor(rule,"trace:dg") - settransparency(rule,"trace:dg") - rule = hpack_nodes(rule) - rule.height = 0 - rule.depth = 0 - rule.width = 0 - current.list = concat_nodes { list, new_kern(delta), rule } + local rule = tracedrule(-delta,naturalheight,naturaldepth,"trace:dg") + current.list = list .. new_kern(delta) .. new_hlist(rule) end end end |