--
--- src/ltj-setwidth.lua
+-- ltj-setwidth.lua
--
luatexja.load_module('base'); local ltjb = luatexja.base
luatexja.load_module('stack'); local ltjs = luatexja.stack
luatexja.load_module('jfont'); local ltjf = luatexja.jfont
luatexja.load_module('direction'); local ltjd = luatexja.direction
+luatexja.load_module('lotf_aux'); local ltju = luatexja.lotf_aux
local setfield = node.direct.setfield
local getfield = node.direct.getfield
local getlist = node.direct.getlist
local getchar = node.direct.getchar
local getsubtype = node.direct.getsubtype
+local getwidth = node.direct.getwidth or function(n) return getfield(n,'width') end
+local getdepth = node.direct.getdepth or function(n) return getfield(n,'depth') end
+local getwhd = node.direct.getwhd or function(n)
+ return getfield(n,'width'), getfield(n,'height'),getfield(n,'depth') end
+
+local setwhd = node.direct.setwhd or function(n,w,h,d)
+ setfield(n,'width',w); setfield(n,'height',h); setfield(n,'depth',d) end
+local setchar = node.direct.setchar or function(n,c) setfield(n,'char',c) end
+local setnext = node.direct.setnext or function(n,c) setfield(n,'next',c) end
+local setdir = node.direct.setdir or function(n,c) setfield(n,'dir',c) end
+local setkern = node.direct.setkern or function(n,c) setfield(n,'kern',c) end
+local setoffsets = node.direct.setoffsets or function(n,x,y)
+ setfield(n,'xoffset',x); setfield(n,'yoffset',y) end
+local getoffsets = node.direct.getoffsets or function(n)
+ return getfield(n,'xoffset'), getfield(n,'yoffset') end
local node_traverse_id = node.direct.traverse_id
local node_traverse = node.direct.traverse
local node_copy = node.direct.copy
local node_remove = node.direct.remove
local node_tail = node.direct.tail
-local node_next = node.direct.getnext or node.next
+local node_next = node.direct.getnext
local has_attr = node.direct.has_attribute
local set_attr = node.direct.set_attribute
local node_insert_before = node.direct.insert_before
local attr_ykblshift = luatexbase.attributes['ltj@ykblshift']
local attr_tkblshift = luatexbase.attributes['ltj@tkblshift']
local attr_icflag = luatexbase.attributes['ltj@icflag']
+local attr_vert_ori = luatexbase.attributes['ltj@vert@ori']
-local ltjf_font_metric_table = ltjf.font_metric_table
local ltjf_font_extra_info = ltjf.font_extra_info
local PACKED = luatexja.icflag_table.PACKED
end)
local call_callback = luatexbase.call_callback
-local fshift = { down = 0, left = 0}
+local fshift = { down = 0, left = 0 }
-local min, max = math.min, math.max
+local min, max, floor, abs = math.min, math.max, math.floor, math.abs
local rule_subtype = (status.luatex_version>=85) and 3 or 0
local kbl = has_attr(p, attr_ykblshift) or 0
--
-- f*: whd specified in JFM
- local fwidth, pwidth = char_data.width, getfield(p, 'width')
- fwidth = fwidth or pwidth
- local fheight, pheight = char_data.height, getfield(p, 'height')
- fheight = fheight or pheight
- local fdepth, pdepth = char_data.depth,getfield(p, 'depth')
- fdepth = fdepth or pdepth
+ local pwidth, pheight,pdepth = getwhd(p)
+ local fwidth = char_data.width or pwidth
+ local fheight= char_data.height or pheight
+ local fdepth = char_data.depth or pdepth
if pwidth==fwidth then
-- 補正後glyph node は ht: p.height - kbl - down, dp: p.depth + min(0, kbl+down) を持つ
-- 設定されるべき寸法: ht: fheight - kbl, dp: fdepth + kbl
local ht_diff = fheight + fshift.down - pheight
local dp_diff = fdepth + kbl - pdepth - min(kbl + fshift.down, 0)
if ht_diff == 0 and dp_diff ==0 then -- offset only
- set_attr(p, attr_icflag, PROCESSED)
- setfield(p, 'xoffset', getfield(p, 'xoffset') - fshift.left)
- setfield(p, 'yoffset', getfield(p, 'yoffset') - kbl - fshift.down)
+ set_attr(p, attr_icflag, PROCESSED)
+ local xo, yo = getoffsets(p)
+ setoffsets(p, xo - fshift.left, yo - kbl - fshift.down)
return node_next(p), head, p
elseif ht_diff >= 0 and dp_diff >=0 then -- rule
local box = node_new(id_rule,rule_subtype)
- setfield(p, 'yoffset', getfield(p, 'yoffset') - kbl - fshift.down)
- setfield(box, 'width', 0)
- setfield(box, 'height', fheight - kbl)
- setfield(box, 'depth', fdepth + kbl)
- setfield(box, 'dir', dir)
+ local xo, yo = getoffsets(p)
+ setoffsets(p, xo, yo - kbl - fshift.down)
+ setwhd(box, 0, fheight - kbl, fdepth + kbl)
+ setdir(box, dir)
set_attr(box, attr_icflag, PACKED)
set_attr(p, attr_icflag, PROCESSED)
head = p and node_insert_before(head, p, box)
local q
head, q = node_remove(head, p)
- setfield(p, 'yoffset', getfield(p, 'yoffset') -fshift.down);
- setfield(p, 'next', nil)
- setfield(p, 'xoffset', getfield(p, 'xoffset')
- + char_data.align*(fwidth-pwidth) - fshift.left)
+ if char_data.round_threshold then
+ local frac = abs(pwidth / fwidth);
+ local quot = floor(frac)
+ if frac-quot <char_data.round_threshold then fwidth = fwidth * quot end
+ end
+ local xo, yo = getoffsets(p)
+ setoffsets(p, xo + char_data.align*(fwidth-pwidth) - fshift.left,
+ yo - fshift.down);
+ setnext(p, nil)
local box = node_new(id_hlist)
- setfield(box, 'width', fwidth)
- setfield(box, 'height', fheight)
- setfield(box, 'depth', fdepth)
+ setwhd(box, fwidth, fheight, fdepth)
setfield(box, 'head', p)
setfield(box, 'shift', kbl)
- setfield(box, 'dir', dir)
+ setdir(box, dir)
set_attr(box, attr_icflag, PACKED)
head = q and node_insert_before(head, q, box)
or node_insert_after(head, node_tail(head), box)
luatexja.setwidth.capsule_glyph_yoko = capsule_glyph_yoko
-- 和文文字の位置補正（縦）
+-- UTR#50 で R もしくは Tr と指定されているが，縦組用グリフがないもの
+local function capsule_glyph_tate_rot(p, met, char_data, head, dir, asc)
+ fshift.down = char_data.down; fshift.left = char_data.left
+ fshift = call_callback("luatexja.set_width", fshift, met, char_data)
+ local kbl = has_attr(p, attr_tkblshift) or 0
+ -- f*: whd specified in JFM
+ local pwidth, pheight,pdepth = getwhd(p)
+ local fwidth = char_data.width or pwidth
+ local fheight= char_data.height or pheight
+ local fdepth = char_data.depth or pdepth
+ local q
+ head, q = node_remove(head, p)
+ local xo, yo = getoffsets(p)
+ setoffsets(p, xo + char_data.align*(fwidth-pwidth) - fshift.left,
+ yo - fshift.down - asc);
+ setnext(p, nil)
+ local box = node_new(id_hlist)
+ setwhd(box, fwidth, fheight, fdepth)
+ setfield(box, 'head', p)
+ setfield(box, 'shift', kbl)
+ setdir(box, dir)
+ set_attr(box, attr_icflag, PACKED)
+ head = q and node_insert_before(head, q, box)
+ or node_insert_after(head, node_tail(head), box)
+ return q, head, box
+end
+
+local font_getfont = font.getfont
+local get_ascender, get_descender = ltju.get_ascender, ltju.get_descender
local function capsule_glyph_tate(p, met, char_data, head, dir)
if not char_data then return node_next(p), head end
- local ascent, descent = met.ascent, met.descent
- local fwidth, pwidth = char_data.width
+ local fwidth, pwidth, ascender = char_data.width
do
- local pf = getfont(p)
- local pc = getchar(p)
- setfield(p, 'char', pc)
- pwidth = ltjf_font_extra_info[pf] and ltjf_font_extra_info[pf][pc]
- and ltjf_font_extra_info[pf][pc].vwidth
- and ltjf_font_extra_info[pf][pc].vwidth * met.size or (ascent+descent)
- pwidth = pwidth + (met.v_advance[pc] or 0)
- ascent = met.v_origin[pc] and ascent - met.v_origin[pc] or ascent
+ local pf, pc = getfont(p), getchar(p)
+ local feir = ltjf_font_extra_info[pf]
+ if feir and feir.rotation and met.vert_activated then
+ if feir.rotation[pc] and (has_attr(p, attr_vert_ori) or 0)<=0 then
+ return capsule_glyph_tate_rot(p, met, char_data, head, dir,
+ 0.5*(get_ascender(pf)-get_descender(pf)))
+ end
+ end
+ pwidth, ascender = feir.vheight[pc]*met.size, feir.vorigin[pc]*met.size
end
fwidth = fwidth or pwidth
fshift.down = char_data.down; fshift.left = char_data.left
fshift = call_callback("luatexja.set_width", fshift, met, char_data)
local fheight = char_data.height or 0
local fdepth = char_data.depth or 0
- local y_shift
- = getfield(p, 'xoffset') + (has_attr(p,attr_tkblshift) or 0)
+ local xo, yo = getoffsets(p)
+ local y_shift = xo + (has_attr(p,attr_tkblshift) or 0)
local q
head, q = node_remove(head, p)
local box = node_new(id_hlist)
- setfield(box, 'width', fwidth)
- setfield(box, 'height', fheight)
- setfield(box, 'depth', fdepth)
+ setwhd(box, fwidth, fheight, fdepth)
setfield(box, 'shift', y_shift)
- setfield(box, 'dir', dir)
+ setdir(box, dir)
- setfield(p, 'xoffset', - fshift.down)
- setfield(p, 'yoffset', getfield(p, 'yoffset') -(ascent
- + char_data.align*(fwidth-pwidth) - fshift.left) )
+ setoffsets(p, -fshift.down,
+ yo -(ascender + char_data.align*(fwidth-pwidth) - fshift.left) )
local ws = node_new(id_whatsit, sid_save)
local wm = node_new(id_whatsit, sid_matrix)
setfield(wm, 'data', '0 1 -1 0')
- local pwnh = -round(0.5*getfield(p, 'width'))
- local k2 = node_new(id_kern, 1); setfield(k2, 'kern', pwnh)
- local k3 = node_new(id_kern, 1); setfield(k3, 'kern', -getfield(p, 'width')-pwnh)
+ local pwnh = -round(0.5*getwidth(p))
+ local k2 = node_new(id_kern, 1); setkern(k2, pwnh)
+ local k3 = node_new(id_kern, 1); setkern(k3, -getwidth(p)-pwnh)
local wr = node_new(id_whatsit, sid_restore)
setfield(box, 'head', ws)
- setfield(ws, 'next', wm); setfield(wm, 'next', k2);
- setfield(k2, 'next', p); setfield(p, 'next', k3);
- setfield(k3, 'next', wr);
+ setnext(ws, wm); setnext(wm, k2);
+ setnext(k2, p); setnext(p, k3);
+ setnext(k3, wr);
set_attr(box, attr_icflag, PACKED)
head = q and node_insert_before(head, q, box)
local function capsule_glyph_math(p, met, char_data)
if not char_data then return nil end
- local fwidth, pwidth = char_data.width, getfield(p, 'width')
- fwidth = (fwidth ~= 'prop') and fwidth or pwidth
+ local fwidth, pwidth = char_data.width, getwidth(p)
+ fwidth = fwidth or pwidth
fshift.down = char_data.down; fshift.left = char_data.left
fshift = call_callback("luatexja.set_width", fshift, met, char_data)
local fheight, fdepth = char_data.height, char_data.depth
setfield(p, 'yoffset', -fshift.down)
setfield(p, 'xoffset', getfield(p, 'xoffset') + char_data.align*(fwidth-pwidth) - fshift.left)
local box = node_new(id_hlist);
- setfield(box, 'width', fwidth)
- setfield(box, 'height', fheight)
- setfield(box, 'depth', fdepth)
+ setwhd(box, fwidth, fheight, fdepth)
setfield(box, 'head', p)
setfield(box, 'shift', y_shift)
- setfield(box, 'dir', tex.mathdir)
+ setdir(box, tex.mathdir)
set_attr(box, attr_icflag, PACKED)
return box
end
elseif pid==id_rule then
local v = has_attr(p,attr_ablshift) or 0
setfield(p, 'height', getfield(p, 'height')-v)
- setfield(p, 'depth', getfield(p, 'depth')+v)
+ setfield(p, 'depth', getdepth(p)+v)
set_attr(p, attr_icflag, PROCESSED)
elseif pid==id_glyph then
-- 欧文文字; 和文文字は pid == id_hlist の場合で処理される
local y_adjust, node_depth, adj_depth = 0, 0, 0
for lp in node_traverse_id(id_glyph, head) do
y_adjust = has_attr(lp,attr_ablshift) or 0
- node_depth = max(getfield(lp, 'depth') + min(y_adjust, 0), node_depth)
- adj_depth = (y_adjust>0) and max(getfield(lp, 'depth') + y_adjust, adj_depth) or adj_depth
+ local ld = getdepth(lp)
+ node_depth = max(ld + min(y_adjust, 0), node_depth)
+ adj_depth = (y_adjust>0) and max(ld + y_adjust, adj_depth) or adj_depth
setfield(lp, 'yoffset', getfield(lp, 'yoffset') - y_adjust)
end
if adj_depth>node_depth then
local r = node_new(id_rule,rule_subtype)
- setfield(r, 'width', 0); setfield(r, 'height', 0)
- setfield(r, 'depth', adj_depth); setfield(r, 'dir', tex_dir)
+ setwhd(r, 0, 0, adj_depth); setdir(r, tex_dir)
set_attr(r, attr_icflag, PROCESSED)
if field=='post' then
node_insert_after(head, head, r)
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