-- -- 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 getid = node.direct.getid local getfont = node.direct.getfont 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_new = node.direct.new local node_copy = node.direct.copy local node_remove = node.direct.remove local node_tail = node.direct.tail 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 node_insert_after = node.direct.insert_after local round = tex.round local id_glyph = node.id('glyph') local id_kern = node.id('kern') local id_hlist = node.id('hlist') local id_vlist = node.id('vlist') local id_rule = node.id('rule') local id_math = node.id('math') local id_whatsit = node.id('whatsit') local sid_save = node.subtype('pdf_save') local sid_restore = node.subtype('pdf_restore') local sid_matrix = node.subtype('pdf_setmatrix') local dir_tate = luatexja.dir_table.dir_tate 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_extra_info = ltjf.font_extra_info local PACKED = luatexja.icflag_table.PACKED local PROCESSED = luatexja.icflag_table.PROCESSED local get_pr_begin_flag do local PROCESSED_BEGIN_FLAG = luatexja.icflag_table.PROCESSED_BEGIN_FLAG local floor = math.floor get_pr_begin_flag = function (p) local i = has_attr(p, attr_icflag) or 0 return i - i%PROCESSED_BEGIN_FLAG end end local ltjw = {} --export luatexja.setwidth = ltjw luatexbase.create_callback("luatexja.set_width", "data", function (fstable, fmtable, char_data) return fstable end) local call_callback = luatexbase.call_callback local fshift = { down = 0, left = 0 } local min, max, floor, abs = math.min, math.max, math.floor, math.abs local rule_subtype = (status.luatex_version>=85) and 3 or 0 -- 和文文字の位置補正(横) local function capsule_glyph_yoko(p, met, char_data, head, dir) if not char_data then return node_next(p), head, p end 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_ykblshift) 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 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) 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) 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) or node_insert_after(head, node_tail(head), box) return node_next(p), head, p, box end end local q head, q = node_remove(head, p) if pwidth > fwidth then if char_data.round_threshold then local frac = pwidth / fwidth local quot = floor(frac+0.5) if abs(frac-quot) fwidth and char_data.round_threshold then local frac = pwidth / fwidth local quot = floor(frac+0.5) if abs(frac-quot) 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) 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) else setfield(disc, field, (node_insert_before(head, head, r))) end end end function luatexja.setwidth.apply_ashift_disc(d, is_dir_tate, dir) attr_ablshift = is_dir_tate and attr_tablshift or attr_yablshift disc, tex_dir = d, dir ashift_disc_inner('pre') ashift_disc_inner('post') ashift_disc_inner('replace') end end