diff options
Diffstat (limited to 'tex/context/base/mkiv/font-mps.lua')
| -rw-r--r-- | tex/context/base/mkiv/font-mps.lua | 131 |
1 files changed, 80 insertions, 51 deletions
diff --git a/tex/context/base/mkiv/font-mps.lua b/tex/context/base/mkiv/font-mps.lua index cde34f2ae..895835958 100644 --- a/tex/context/base/mkiv/font-mps.lua +++ b/tex/context/base/mkiv/font-mps.lua @@ -6,6 +6,7 @@ if not modules then modules = { } end modules ['font-mps'] = { license = "see context related readme files" } +local tostring = tostring local concat = table.concat local formatters = string.formatters @@ -35,6 +36,17 @@ local f_draw = formatters["draw %s;"] local f_boundingbox = formatters["((%.6F,%.6F)--(%.6F,%.6F)--(%.6F,%.6F)--(%.6F,%.6F)--cycle)"] local f_vertical = formatters["((%.6F,%.6F)--(%.6F,%.6F))"] +directives.register("metapost.stripzeros", function() + + f_moveto = formatters["(%.6N,%.6N)"] + f_lineto = formatters["--(%.6N,%.6N)"] + f_curveto = formatters["..controls(%.6N,%.6N)and(%.6N,%.6N)..(%.6N,%.6N)"] + + f_boundingbox = formatters["((%.6N,%.6N)--(%.6N,%.6N)--(%.6N,%.6N)--(%.6N,%.6N)--cycle)"] + f_vertical = formatters["((%.6N,%.6N)--(%.6N,%.6N))"] + +end) + function metapost.boundingbox(d,factor) local bounds = d.boundingbox local factor = factor or 1 @@ -97,9 +109,12 @@ function metapost.paths(d,xfactor,yfactor) elseif operator =="q" then -- "quadraticto" size = size + 1 -- first is always a moveto - local l_x, l_y = xfactor*sequence[i-2], yfactor*sequence[i-1] - local m_x, m_y = xfactor*sequence[i+1], yfactor*sequence[i+2] - local r_x, r_y = xfactor*sequence[i+3], yfactor*sequence[i+4] + local l_x = xfactor*sequence[i-2] + local l_y = yfactor*sequence[i-1] + local m_x = xfactor*sequence[i+1] + local m_y = yfactor*sequence[i+2] + local r_x = xfactor*sequence[i+3] + local r_y = yfactor*sequence[i+4] path[size] = f_curveto ( l_x + 2/3 * (m_x-l_x), l_y + 2/3 * (m_y-l_y), @@ -137,9 +152,12 @@ function metapost.paths(d,xfactor,yfactor) size = size + 1 -- first is always a moveto local prev = segments[i-1] - local l_x, l_y = xfactor*prev[#prev-2], yfactor*prev[#prev-1] - local m_x, m_y = xfactor*segment[1], yfactor*segment[2] - local r_x, r_y = xfactor*segment[3], yfactor*segment[4] + local l_x = xfactor*prev[#prev-2] + local l_y = yfactor*prev[#prev-1] + local m_x = xfactor*segment[1] + local m_y = yfactor*segment[2] + local r_x = xfactor*segment[3] + local r_y = yfactor*segment[4] path[size] = f_curveto ( l_x + 2/3 * (m_x-l_x), l_y + 2/3 * (m_y-l_y), @@ -196,7 +214,10 @@ function metapost.maxbounds(data,index,factor) local boundingbox = glyph.boundingbox local xmin, ymin, xmax, ymax if not maxbounds then - xmin, ymin, xmax, ymax = 0, 0, 0, 0 + xmin = 0 + ymin = 0 + xmax = 0 + ymax = 0 for i=1,#glyphs do local d = glyphs[i] if d then @@ -240,45 +261,52 @@ end -- right time. It's probably why I like watching https://www.youtube.com/watch?v=c5FqpddnJmc -- so much: precisely (and perfectly) timed too. -local nodecodes = nodes.nodecodes -- no nuts yet - -local glyph_code = nodecodes.glyph -local disc_code = nodecodes.disc -local kern_code = nodecodes.kern -local glue_code = nodecodes.glue -local hlist_code = nodecodes.hlist -local vlist_code = nodecodes.vlist -local rule_code = nodecodes.rule - -local normal_rule = nodes.rulecodes.normal - -local nuts = nodes.nuts -local getnext = nuts.getnext -local getid = nuts.getid -local getlist = nuts.getlist -local getchar = nuts.getchar -local getfont = nuts.getfont -local getsubtype = nuts.getsubtype -local getfield = nuts.getfield -local getbox = nuts.getbox -local getwhd = nuts.getwhd -local getkern = nuts.getkern -local getshift = nuts.getshift -local getwidth = nuts.getwidth -local getheight = nuts.getheight -local getdepth = nuts.getdepth - -local effective_glue = nuts.effective_glue - -local characters = fonts.hashes.characters -local parameters = fonts.hashes.parameters -local shapes = fonts.hashes.shapes -local topaths = metapost.paths - -local f_code = formatters["mfun_do_outline_text_flush(%q,%i,%.6F,%.6F)(%,t);"] -local f_rule = formatters["mfun_do_outline_rule_flush(%q,%.6F,%.6F,%.6F,%.6F);"] -local f_bounds = formatters["checkbounds(%.6F,%.6F,%.6F,%.6F);"] -local s_nothing = "(origin scaled 10)" +local nodecodes = nodes.nodecodes -- no nuts yet +local rulecodes = nodes.rulecodes + +local glyph_code = nodecodes.glyph +local disc_code = nodecodes.disc +local kern_code = nodecodes.kern +local glue_code = nodecodes.glue +local hlist_code = nodecodes.hlist +local vlist_code = nodecodes.vlist +local rule_code = nodecodes.rule + +local normalrule_code = rulecodes.normal + +local nuts = nodes.nuts +local getnext = nuts.getnext +local getid = nuts.getid +local getlist = nuts.getlist +local getsubtype = nuts.getsubtype +local getfield = nuts.getfield +local getbox = nuts.getbox +local getwhd = nuts.getwhd +local getkern = nuts.getkern +local getshift = nuts.getshift +local getwidth = nuts.getwidth +local getheight = nuts.getheight +local getdepth = nuts.getdepth +local getexpansion = nuts.getexpansion +local isglyph = nuts.isglyph + +local effective_glue = nuts.effective_glue + +local characters = fonts.hashes.characters +local parameters = fonts.hashes.parameters +local shapes = fonts.hashes.shapes +local topaths = metapost.paths + +local f_code = formatters["mfun_do_outline_text_flush(%q,%i,%.6F,%.6F,%q)(%,t);"] +local f_rule = formatters["mfun_do_outline_rule_flush(%q,%.6F,%.6F,%.6F,%.6F);"] +local f_bounds = formatters["checkbounds(%.6F,%.6F,%.6F,%.6F);"] +local s_nothing = "(origin scaled 10)" + +directives.register("metapost.stripzeros", function() + f_code = formatters["mfun_do_outline_text_flush(%q,%i,%.6N,%.6N,%q)(%,t);"] + f_rule = formatters["mfun_do_outline_rule_flush(%q,%.6N,%.6N,%.6N,%.6N);"] + f_bounds = formatters["checkbounds(%.6N,%.6N,%.6N,%.6N);"] +end) local sc = 10 local fc = number.dimenfactors.bp * sc / 10 @@ -302,13 +330,14 @@ function metapost.output(kind,font,char,advance,shift,ex) local advance = advance or 0 local exfactor = ex or 0 local wfactor = 1 + local detail = kind == "p" and tostring(char) or "" if exfactor ~= 0 then wfactor = (1+(ex/units)/1000) xfactor = xfactor * wfactor end local paths = topaths(glyf,xfactor,yfactor) if paths then - local code = f_code(kind,#paths,advance,shift,paths) + local code = f_code(kind,#paths,advance,shift,detail,paths) return code, character.width * fc * wfactor else return "", 0 @@ -337,9 +366,9 @@ function fonts.metapost.boxtomp(n,kind) horizontal = function(parent,current,xoffset,yoffset) local dx = 0 while current do - local id = getid(current) - if id == glyph_code then - local code, width = metapost.output(kind,getfont(current),getchar(current),xoffset+dx,yoffset,getfield(current,"expansion_factor")) + local char, id = isglyph(current) + if char then + local code, width = metapost.output(kind,id,char,xoffset+dx,yoffset,getexpansion(current)) result[#result+1] = code dx = dx + width elseif id == disc_code then @@ -374,7 +403,7 @@ function fonts.metapost.boxtomp(n,kind) dp = getdepth(parent) end local hd = (ht + dp) * fc - if hd ~= 0 and getsubtype(current) == normal_rule then + if hd ~= 0 and getsubtype(current) == normalrule_code then result[#result+1] = f_rule(kind,xoffset+dx+wd/2,yoffset+hd/2,wd,hd) end dx = dx + wd |