diff options
Diffstat (limited to 'Master/texmf-dist/source/luatex/luamplib/luamplib.dtx')
| -rw-r--r-- | Master/texmf-dist/source/luatex/luamplib/luamplib.dtx | 304 |
1 files changed, 256 insertions, 48 deletions
diff --git a/Master/texmf-dist/source/luatex/luamplib/luamplib.dtx b/Master/texmf-dist/source/luatex/luamplib/luamplib.dtx index 9d5b3598268..2f673d7f773 100644 --- a/Master/texmf-dist/source/luatex/luamplib/luamplib.dtx +++ b/Master/texmf-dist/source/luatex/luamplib/luamplib.dtx @@ -85,7 +85,7 @@ See source file '\inFileName' for licencing and contact information. %<*driver> \NeedsTeXFormat{LaTeX2e} \ProvidesFile{luamplib.drv}% - [2013/12/23 v2.11 Interface for using the mplib library]% + [2013/12/29 v2.2 Interface for using the mplib library]% \documentclass{ltxdoc} \usepackage{metalogo,multicol,mdwlist,fancyvrb,xspace} \usepackage[x11names]{xcolor} @@ -154,7 +154,7 @@ See source file '\inFileName' for licencing and contact information. % \author{Hans Hagen, Taco Hoekwater, Elie Roux, Philipp Gesang and Kim Dohyun\\ % Maintainer: LuaLaTeX Maintainers --- % Support: \email{lualatex-dev@tug.org}} -% \date{2013/12/23 v2.11} +% \date{2013/12/29 v2.2} % % \maketitle % @@ -189,10 +189,28 @@ See source file '\inFileName' for licencing and contact information. % |textext()| is a more versatile macro equivalent to |TEX()| from TEX.mp. % |TEX()| is also allowed unless TEX.mp is loaded, which should be always % avoided. +% \item \verb|verbatimtex ... etex| that comes just before \verb|beginfig()| +% is not ignored, but the \TeX\ code inbetween will be inserted before the +% following mplib hbox. Using this command, +% each mplib box can be freely moved horizontally and/or vertically. +% All other \verb|verbatimtex ... etex|'s are ignored. +% \textsc{e.g.}: +% \begin{verbatim} +% \mplibcode +% verbatimtex \moveright 3cm etex; beignfig(0); ... endfig; +% verbatimtex \leavevmode etex; beignfig(1); ... endfig; +% verbatimtex \leavevmode\lower 1ex etex; beignfig(2); ... endfig; +% verbatimtex \endgraf\moveright 1cm etex; beignfig(3); ... endfig; +% \endmplibcode +% \end{verbatim} +% \textsc{n.b.} \cs{endgraf} should be used instead of \cs{par} inside +% \verb|verbatimtex ... etex|. +% \item Notice that, after each figure is processed, macro \cs{MPwidth} stores +% the width value of latest figure; \cs{MPheight}, the height value. % \end{itemize} % % Using this package is easy: in Plain, type your metapost code between the -% macros \texttt{mplibcode} and \texttt{endmplibcode}, and in \LaTeX\ in the +% macros \cs{mplibcode} and \cs{endmplibcode}, and in \LaTeX\ in the % \texttt{mplibcode} environment. % % There are (basically) two formats for metapost: \emph{plain} and @@ -225,8 +243,8 @@ luamplib.lastlog = "" local err, warn, info, log = luatexbase.provides_module({ name = "luamplib", - version = 2.11, - date = "2013/12/23", + version = 2.2, + date = "2013/12/29", description = "Lua package to typeset Metapost with LuaTeX's MPLib.", }) @@ -569,12 +587,39 @@ end % v2.1: \verb|textext()| is now available, which is equivalent to \verb|TEX()| macro from TEX.mp. % \verb|TEX()| is synonym of \verb|textext()| unless TEX.mp is loaded. % +% v2.2: Transparency and Shading % \begin{macrocode} +local further_split_keys = { + ["MPlibTEXboxID"] = true, + ["sh_color_a"] = true, + ["sh_color_b"] = true, +} + +local function script2table(s) + local t = {} + for i in stringgmatch(s,"[^\13]+") do + local k,v = stringmatch(i,"(.-)=(.+)") -- v may contain =. + if k and v then + local vv = {} + if further_split_keys[k] then + for j in stringgmatch(v,"[^:]+") do + vv[#vv+1] = j + end + end + if #vv > 0 then + t[k] = vv + else + t[k] = v + end + end + end + return t +end local mplibcodepreamble = [[ vardef rawtextext (expr t) = if unknown TEXBOX_: - image( special "%%mkTEXbox:"&t; ) + image( special "MPlibmkTEXbox="&t; ) else: TEXBOX_ := TEXBOX_ + 1; image ( @@ -582,7 +627,7 @@ vardef rawtextext (expr t) = xscaled TEXBOX_wd[TEXBOX_] yscaled (TEXBOX_ht[TEXBOX_] + TEXBOX_dp[TEXBOX_]) shifted (0, -TEXBOX_dp[TEXBOX_]) - withprescript "%%TEXtxtbox:" & + withprescript "MPlibTEXboxID=" & decimal TEXBOX_ & ":" & decimal TEXBOX_wd[TEXBOX_] & ":" & decimal(TEXBOX_ht[TEXBOX_]+TEXBOX_dp[TEXBOX_]); @@ -609,17 +654,19 @@ def externalfigure primary filename = draw rawtextext("\includegraphics{"& filename &"}") enddef; def TEX = textext enddef; -def VerbatimTeX (text t) = - if known TEXBOX_: message "verbatimtex '"& t &"' is ignored"; fi -enddef; def fontmapfile primary filename = enddef; +def specialVerbatimTeX (text t) = special "MPlibVerbTeX="&t; enddef; +def ignoreVerbatimTeX (text t) = enddef; +let VerbatimTeX = specialVerbatimTeX; +extra_beginfig := extra_beginfig & " let VerbatimTeX = ignoreVerbatimTeX;" ; +extra_endfig := extra_endfig & " let VerbatimTeX = specialVerbatimTeX;" ; ]] local factor = 65536*(7227/7200) -local function putTEXboxes (object) - local n,tw,th = stringmatch(object.prescript, - "%%%%TEXtxtbox:(%d+):([%d%.%+%-]+):([%d%.%+%-]+)") +local function putTEXboxes (object,prescript) + local box = prescript.MPlibTEXboxID + local n,tw,th = box[1],box[2],box[3] if n and tw and th then local op = object.path local first, second, fourth = op[1], op[2], op[4] @@ -628,32 +675,40 @@ local function putTEXboxes (object) local rx, ry = (second.y_coord - ty)/tw, (fourth.x_coord - tx)/th if sx == 0 then sx = 0.00001 end if sy == 0 then sy = 0.00001 end - local cs = object.color - if cs and #cs > 0 then - pdf_literalcode(luamplib.colorconverter(cs)) - end pdf_literalcode("q %f %f %f %f %f %f cm",sx,rx,ry,sy,tx,ty) texsprint(format("\\mplibputtextbox{%i}",n)) pdf_literalcode("Q") end end +local TeX_code_t = {} + local function domakeTEXboxes (data) local num = tex.count[14] -- newbox register if data and data.fig then local figures = data.fig for f=1, #figures do + TeX_code_t[f] = nil local figure = figures[f] local objects = getobjects(data,figure,f) if objects then for o=1,#objects do local object = objects[o] local prescript = object.prescript - local str = prescript and stringmatch(prescript, "%%%%mkTEXbox:(.*)") + prescript = prescript and script2table(prescript) + local str = prescript and prescript.MPlibmkTEXbox if str then num = num + 1 texsprint(format("\\setbox%i\\hbox{%s}",num,str)) end +% \end{macrocode} +% \verb|verbatimtex ... etex| before \verb|beginfig()| is not ignored, +% but the \TeX\ code inbetween is inserted before the mplib box. +% \begin{macrocode} + local texcode = prescript and prescript.MPlibVerbTeX + if texcode and texcode ~= "" then + TeX_code_t[f] = texcode + end end end end @@ -661,10 +716,11 @@ local function domakeTEXboxes (data) end local function makeTEXboxes (data) + data = "relax " .. data data = stringgsub(data, "([^A-Z_a-z])btex([^A-Z_a-z])", function(pre,post) post = stringgsub(post,"%s","") - return pre .. 'textext("' .. post + return pre .. 'rawtextext("' .. post end) data = stringgsub(data, "([^A-Z_a-z])verbatimtex([^A-Z_a-z])", function(pre,post) @@ -704,7 +760,148 @@ end luamplib.processwithTEXboxes = processwithTEXboxes % \end{macrocode} -% End of \verb|btex| -- \verb|etex| patch. +% Transparency and Shading +% \begin{macrocode} +local pdf_objs = {} + +-- objstr <string> => obj <number>, new <boolean> +local function update_pdfobjs (os) + local on = pdf_objs[os] + if on then + return on,false + end + on = pdf.immediateobj(os) + pdf_objs[os] = on + return on,true +end + +local transparancy_modes = { [0] = "Normal", + "Normal", "Multiply", "Screen", "Overlay", + "SoftLight", "HardLight", "ColorDodge", "ColorBurn", + "Darken", "Lighten", "Difference", "Exclusion", + "Hue", "Saturation", "Color", "Luminosity", + "Compatible", +} + +local function update_tr_res(res,mode,opaq) + local os = format("<</BM /%s/ca %g/CA %g/AIS false>>",mode,opaq,opaq) + local on, new = update_pdfobjs(os) + if new then + res = res .. format("/MPlibTr%s%g %i 0 R",mode,opaq,on) + end + return res +end + +local function tr_pdf_pageresources(mode,opaq) + local res = "" + res = update_tr_res(res, "Normal", 1) + res = update_tr_res(res, mode, opaq) + if res ~= "" then + local tpr = tex.pdfpageresources -- respect luaotfload-colors + if not stringfind(tpr,"/ExtGState<<.*>>") then + tpr = tpr.."/ExtGState<<>>" + end + tpr = stringgsub(tpr,"/ExtGState<<","%1"..res) + tex.set("global","pdfpageresources",tpr) + end +end + +-- luatexbase.mcb is not yet updated: "finish_pdffile" callback is missing + +local function sh_pdfpageresources(shtype,domain,colorspace,colora,colorb,coordinates) + local os, on, new + os = format("<</FunctionType 2/Domain [ %s ]/C0 [ %s ]/C1 [ %s ]/N 1>>", + domain, colora, colorb) + on = update_pdfobjs(os) + os = format("<</ShadingType %i/ColorSpace /%s/Function %i 0 R/Coords [ %s ]/Extend [ true true ]/AntiAlias true>>", + shtype, colorspace, on, coordinates) + on, new = update_pdfobjs(os) + if not new then + return on + end + local res = format("/MPlibSh%i %i 0 R", on, on) + local ppr = pdf.pageresources or "" + if not stringfind(ppr,"/Shading<<.*>>") then + ppr = ppr.."/Shading<<>>" + end + pdf.pageresources = stringgsub(ppr,"/Shading<<","%1"..res) + return on +end + +local function color_normalize(ca,cb) + if #cb == 1 then + if #ca == 4 then + cb[1], cb[2], cb[3], cb[4] = 0, 0, 0, 1-cb[1] + else -- #ca = 3 + cb[1], cb[2], cb[3] = cb[1], cb[1], cb[1] + end + elseif #cb == 3 then -- #ca == 4 + cb[1], cb[2], cb[3], cb[4] = 1-cb[1], 1-cb[2], 1-cb[3], 0 + end +end + +local function do_preobj_color(object,prescript) + -- transparency + local opaq = prescript and prescript.tr_transparency + if opaq then + local mode = prescript.tr_alternative or 1 + mode = transparancy_modes[tonumber(mode)] + tr_pdf_pageresources(mode,opaq) + pdf_literalcode("/MPlibTr%s%g gs",mode,opaq) + end + -- color + local cs = object.color + if cs and #cs > 0 then + pdf_literalcode(luamplib.colorconverter(cs)) + end + -- shading + local sh_type = prescript and prescript.sh_type + if sh_type then + local domain = prescript.sh_domain + local centera = prescript.sh_center_a + local centerb = prescript.sh_center_b + local colora = prescript.sh_color_a or {0}; + local colorb = prescript.sh_color_b or {1}; + if #colora > #colorb then + color_normalize(colora,colorb) + elseif #colorb > #colora then + color_normalize(colorb,colora) + end + local colorspace + if #colorb == 1 then colorspace = "DeviceGray" + elseif #colorb == 3 then colorspace = "DeviceRGB" + elseif #colorb == 4 then colorspace = "DeviceCMYK" + else return opaq + end + colora = tableconcat(colora, " ") + colorb = tableconcat(colorb, " ") + local shade_no + if sh_type == "linear" then + local coordinates = format("%s %s",centera,centerb) + shade_no = sh_pdfpageresources(2,domain,colorspace,colora,colorb,coordinates) + elseif sh_type == "circular" then + local radiusa = prescript.sh_radius_a + local radiusb = prescript.sh_radius_b + local coordinates = format("%s %s %s %s",centera,radiusa,centerb,radiusb) + shade_no = sh_pdfpageresources(3,domain,colorspace,colora,colorb,coordinates) + end + pdf_literalcode("q /Pattern cs") + return opaq,shade_no + end + return opaq +end + +local function do_postobj_color(tr,sh) + if sh then + pdf_literalcode("W n /MPlibSh%s sh Q",sh) + end + if tr then + pdf_literalcode("/MPlibTrNormal1 gs") + end +end + +% \end{macrocode} +% End of \verb|btex| -- \verb|etex| and Transparency/Shading patch. % % \begin{macrocode} @@ -725,6 +922,12 @@ local function flush(result,flusher) pdf_startfigure(fignum,0,0,0,0) pdf_stopfigure() else +% \end{macrocode} +% Insert \verb|verbatimtex| code before mplib box. +% \begin{macrocode} + if TeX_code_t[f] then + texsprint(TeX_code_t[f]) + end pdf_startfigure(fignum,llx,lly,urx,ury) pdf_literalcode("q") if objects then @@ -732,13 +935,15 @@ local function flush(result,flusher) local object = objects[o] local objecttype = object.type % \end{macrocode} -% Change from \ConTeXt{} code: the following 3 lines are part of the -% |btex...etex| patch. +% Change from \ConTeXt{} code: the following 5 lines are part of the +% |btex...etex| patch. Again, colors are processed at this stage. % % \begin{macrocode} - local prescript = object.prescript --- [be]tex patch - if prescript and stringfind(prescript,"%%%%TEXtxtbox:") then - putTEXboxes(object) + local prescript = object.prescript + prescript = prescript and script2table(prescript) -- prescript is now a table + local tr_opaq,shade_no = do_preobj_color(object,prescript) + if prescript and prescript.MPlibTEXboxID then + putTEXboxes(object,prescript) elseif objecttype == "start_bounds" or objecttype == "stop_bounds" then -- skip elseif objecttype == "start_clip" then @@ -752,23 +957,13 @@ local function flush(result,flusher) -- not supported elseif objecttype == "text" then local ot = object.transform -- 3,4,5,6,1,2 -% \end{macrocode} -% -% Change from \ConTeXt{} code: the `cs' stuffs are for supporting `withcolor' option -% -% \begin{macrocode} - local cs = object.color - if cs and #cs > 0 then - pdf_literalcode(luamplib.colorconverter(cs)) - end pdf_literalcode("q %f %f %f %f %f %f cm",ot[3],ot[4],ot[5],ot[6],ot[1],ot[2]) pdf_textfigure(object.font,object.dsize,object.text,object.width,object.height,object.depth) pdf_literalcode("Q") else - local cs = object.color - if cs and #cs > 0 then - pdf_literalcode(luamplib.colorconverter(cs)) - end +% \end{macrocode} +% Color stuffs are modified and moved to several lines above. +% \begin{macrocode} local ml = object.miterlimit if ml and ml ~= miterlimit then miterlimit = ml @@ -819,12 +1014,19 @@ local function flush(result,flusher) else flushnormalpath(path,open) end - if objecttype == "fill" then - pdf_literalcode("h f") - elseif objecttype == "outline" then - pdf_literalcode((open and "S") or "h S") - elseif objecttype == "both" then - pdf_literalcode("h B") +% \end{macrocode} +% +% Change from \ConTeXt{} code: color stuff +% +% \begin{macrocode} + if not shade_no then ----- conflict with shading + if objecttype == "fill" then + pdf_literalcode("h f") + elseif objecttype == "outline" then + pdf_literalcode((open and "S") or "h S") + elseif objecttype == "both" then + pdf_literalcode("h B") + end end end if transformed then @@ -855,6 +1057,12 @@ local function flush(result,flusher) -- pdf_literalcode(cr) -- end end +% \end{macrocode} +% +% Added to \ConTeXt{} code: color stuff +% +% \begin{macrocode} + do_postobj_color(tr_opaq,shade_no) end end pdf_literalcode("Q") @@ -870,13 +1078,13 @@ local function colorconverter(cr) local n = #cr if n == 4 then local c, m, y, k = cr[1], cr[2], cr[3], cr[4] - return format("%.3f %.3f %.3f %.3f k %.3f %.3f %.3f %.3f K",c,m,y,k,c,m,y,k), "0 g 0 G" + return format("%.3g %.3g %.3g %.3g k %.3g %.3g %.3g %.3g K",c,m,y,k,c,m,y,k), "0 g 0 G" elseif n == 3 then local r, g, b = cr[1], cr[2], cr[3] - return format("%.3f %.3f %.3f rg %.3f %.3f %.3f RG",r,g,b,r,g,b), "0 g 0 G" + return format("%.3g %.3g %.3g rg %.3g %.3g %.3g RG",r,g,b,r,g,b), "0 g 0 G" else local s = cr[1] - return format("%.3f g %.3f G",s,s), "0 g 0 G" + return format("%.3g g %.3g G",s,s), "0 g 0 G" end end luamplib.colorconverter = colorconverter @@ -901,7 +1109,7 @@ luamplib.colorconverter = colorconverter \else \NeedsTeXFormat{LaTeX2e} \ProvidesPackage{luamplib} - [2013/12/23 v2.11 mplib package for LuaTeX] + [2013/12/29 v2.2 mplib package for LuaTeX] \RequirePackage{luatexbase-modutils} \RequirePackage{pdftexcmds} \fi |