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authorKarl Berry <karl@freefriends.org>2014-01-02 23:51:49 +0000
committerKarl Berry <karl@freefriends.org>2014-01-02 23:51:49 +0000
commit385e2ceb547e485347aea365c53cddfe0e8c2914 (patch)
tree819678825a767b6764cd7859e86b9348f7246885 /Master/texmf-dist/source/luatex/luamplib
parent037aae555214628582769833f92ee99211fb6972 (diff)
luamplib (2jan14)
git-svn-id: svn://tug.org/texlive/trunk@32551 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/texmf-dist/source/luatex/luamplib')
-rw-r--r--Master/texmf-dist/source/luatex/luamplib/luamplib.dtx304
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