diff options
Diffstat (limited to 'tex/context/base/lpdf-ini.lua')
| -rw-r--r-- | tex/context/base/lpdf-ini.lua | 349 |
1 files changed, 206 insertions, 143 deletions
diff --git a/tex/context/base/lpdf-ini.lua b/tex/context/base/lpdf-ini.lua index 23fe6c177..34825698c 100644 --- a/tex/context/base/lpdf-ini.lua +++ b/tex/context/base/lpdf-ini.lua @@ -9,15 +9,28 @@ if not modules then modules = { } end modules ['lpdf-ini'] = { local setmetatable, getmetatable, type, next, tostring, tonumber, rawset = setmetatable, getmetatable, type, next, tostring, tonumber, rawset local char, byte, format, gsub, concat, match, sub, gmatch = string.char, string.byte, string.format, string.gsub, table.concat, string.match, string.sub, string.gmatch local utfchar, utfvalues = utf.char, utf.values -local sind, cosd, floor = math.sind, math.cosd, math.floor +local sind, cosd, floor, max, min = math.sind, math.cosd, math.floor, math.max, math.min local lpegmatch, P, C, R, S, Cc, Cs = lpeg.match, lpeg.P, lpeg.C, lpeg.R, lpeg.S, lpeg.Cc, lpeg.Cs local formatters = string.formatters +-- pdf.mapfile pdf.mapline (todo: used in font-ctx.lua) +-- pdf.getpos pdf.gethpos pdf.getvpos +-- pdf.reserveobj pdf.immediateobj pdf.obj pdf.refobj +-- pdf.pageref +-- pdf.catalog pdf.info pdf.names pdf.trailer + +local backends = backends +local pdf = pdf +lpdf = lpdf or { } +local lpdf = lpdf + local pdfreserveobject = pdf.reserveobj local pdfimmediateobject = pdf.immediateobj local pdfdeferredobject = pdf.obj local pdfreferenceobject = pdf.refobj +local factor = number.dimenfactors.bp + local trace_finalizers = false trackers.register("backend.finalizers", function(v) trace_finalizers = v end) local trace_resources = false trackers.register("backend.resources", function(v) trace_resources = v end) local trace_objects = false trackers.register("backend.objects", function(v) trace_objects = v end) @@ -26,8 +39,6 @@ local trace_detail = false trackers.register("backend.detail", function local report_objects = logs.reporter("backend","objects") local report_finalizing = logs.reporter("backend","finalizing") -local backends = backends - backends.pdf = backends.pdf or { comment = "backend for directly generating pdf output", nodeinjections = { }, @@ -36,8 +47,76 @@ backends.pdf = backends.pdf or { tables = { }, } -lpdf = lpdf or { } -local lpdf = lpdf +-- first some helpers + +local codeinjections = backends.pdf.codeinjections + +local pdfgetpos, pdfgethpos, pdfgetvpos, pdfhasmatrix, pdfgetmatrix + +if pdf.getpos then + pdfgetpos = pdf.getpos + pdfgethpos = pdf.gethpos + pdfgetvpos = pdf.getvpos + pdfgetmatrix = pdf.getmatrix + pdfhasmatrix = pdf.hasmatrix +else + if pdf.h then + function pdfgetpos () return pdf.h, pdf.v end + function pdfgethpos() return pdf.h end + function pdfgetvpos() return pdf.v end + end + function pdfhasmatrix() return false end + function pdfgetmatrix() return 1, 0, 0, 1, 0, 0 end +end + +codeinjections.getpos = pdfgetpos lpdf.getpos = pdfgetpos +codeinjections.gethpos = pdfgethpos lpdf.gethpos = pdfgethpos +codeinjections.getvpos = pdfgetvpos lpdf.getvpos = pdfgetvpos +codeinjections.hasmatrix = pdfhasmatrix lpdf.hasmatrix = pdfhasmatrix +codeinjections.getmatrix = pdfgetmatrix lpdf.getmatrix = pdfgetmatrix + +function lpdf.transform(llx,lly,urx,ury) + if pdfhasmatrix() then + local sx, rx, ry, sy = pdfgetmatrix() + local w, h = urx - llx, ury - lly + return llx, lly, llx + sy*w - ry*h, lly + sx*h - rx*w + else + return llx, lly, urx, ury + end +end + +-- function lpdf.rectangle(width,height,depth) +-- local h, v = pdfgetpos() +-- local llx, lly, urx, ury +-- if pdfhasmatrix() then +-- local sx, rx, ry, sy = pdfgetmatrix() +-- llx = 0 +-- lly = -depth +-- -- llx = ry * depth +-- -- lly = -sx * depth +-- urx = sy * width - ry * height +-- ury = sx * height - rx * width +-- else +-- llx = 0 +-- lly = -depth +-- urx = width +-- ury = height +-- return (h+llx)*factor, (v+lly)*factor, (h+urx)*factor, (v+ury)*factor +-- end +-- end + +function lpdf.rectangle(width,height,depth) + local h, v = pdfgetpos() + if pdfhasmatrix() then + local sx, rx, ry, sy = pdfgetmatrix() + -- return (h+ry*depth)*factor, (v-sx*depth)*factor, (h+sy*width-ry*height)*factor, (v+sx*height-rx*width)*factor + return h *factor, (v- depth)*factor, (h+sy*width-ry*height)*factor, (v+sx*height-rx*width)*factor + else + return h *factor, (v- depth)*factor, (h+ width )*factor, (v+ height )*factor + end +end + +-- local function tosixteen(str) -- an lpeg might be faster (no table) if not str or str == "" then @@ -91,13 +170,13 @@ end lpdf.toeight = toeight ---~ local escaped = lpeg.Cs((lpeg.S("\0\t\n\r\f ()[]{}/%")/function(s) return format("#%02X",byte(s)) end + lpeg.P(1))^0) - ---~ local function cleaned(str) ---~ return (str and str ~= "" and lpegmatch(escaped,str)) or "" ---~ end - ---~ lpdf.cleaned = cleaned -- not public yet +-- local escaped = lpeg.Cs((lpeg.S("\0\t\n\r\f ()[]{}/%")/function(s) return format("#%02X",byte(s)) end + lpeg.P(1))^0) +-- +-- local function cleaned(str) +-- return (str and str ~= "" and lpegmatch(escaped,str)) or "" +-- end +-- +-- lpdf.cleaned = cleaned -- not public yet local function merge_t(a,b) local t = { } @@ -112,16 +191,16 @@ local f_dictionary = formatters["<< % t >>"] local f_key_array = formatters["/%s [ % t ]"] local f_array = formatters["[ % t ]"] +-- local f_key_value = formatters["/%s %s"] +-- local f_key_dictionary = formatters["/%s <<% t>>"] +-- local f_dictionary = formatters["<<% t>>"] +-- local f_key_array = formatters["/%s [% t]"] +-- local f_array = formatters["[% t]"] + local tostring_a, tostring_d tostring_d = function(t,contentonly,key) - if not next(t) then - if contentonly then - return "" - else - return "<< >>" - end - else + if next(t) then local r, rn = { }, 0 for k, v in next, t do rn = rn + 1 @@ -150,18 +229,16 @@ tostring_d = function(t,contentonly,key) else return f_dictionary(r) end + elseif contentonly then + return "" + else + return "<< >>" end end tostring_a = function(t,contentonly,key) local tn = #t - if tn == 0 then - if contentonly then - return "" - else - return "[ ]" - end - else + if tn ~= 0 then local r = { } for k=1,tn do local v = t[k] @@ -191,10 +268,14 @@ tostring_a = function(t,contentonly,key) else return f_array(r) end + elseif contentonly then + return "" + else + return "[ ]" end end -local tostring_x = function(t) return concat(t, " ") end +local tostring_x = function(t) return concat(t," ") end local tostring_s = function(t) return toeight(t[1]) end local tostring_u = function(t) return tosixteen(t[1]) end local tostring_n = function(t) return tostring(t[1]) end -- tostring not needed @@ -207,7 +288,7 @@ local tostring_r = function(t) local n = t[1] return n and n > 0 and (n .. " 0 R local tostring_v = function(t) local s = t[1] if type(s) == "table" then - return concat(s,"") + return concat(s) else return s end @@ -325,12 +406,27 @@ local function pdfboolean(b,default) end end -local function pdfreference(r) - return setmetatable({ r or 0 },mt_r) +local r_zero = setmetatable({ 0 },mt_r) + +local function pdfreference(r) -- maybe make a weak table + if r and r ~= 0 then + return setmetatable({ r },mt_r) + else + return r_zero + end end +local v_zero = setmetatable({ 0 },mt_v) +local v_empty = setmetatable({ "" },mt_v) + local function pdfverbose(t) -- maybe check for type - return setmetatable({ t or "" },mt_v) + if t == 0 then + return v_zero + elseif t == "" then + return v_empty + else + return setmetatable({ t },mt_v) + end end lpdf.stream = pdfstream -- THIS WILL PROBABLY CHANGE @@ -345,37 +441,19 @@ lpdf.boolean = pdfboolean lpdf.reference = pdfreference lpdf.verbose = pdfverbose --- n = pdf.obj(n, str) --- n = pdf.obj(n, "file", filename) --- n = pdf.obj(n, "stream", streamtext, attrtext) --- n = pdf.obj(n, "streamfile", filename, attrtext) - --- we only use immediate objects - --- todo: tracing - local names, cache = { }, { } function lpdf.reserveobject(name) - if name == "annot" then - -- catch misuse - return pdfreserveobject("annot") - else - local r = pdfreserveobject() - if name then - names[name] = r - if trace_objects then - report_objects("reserving number %a under name %a",r,name) - end - elseif trace_objects then - report_objects("reserving number %a",r) + local r = pdfreserveobject() -- we don't support "annot" + if name then + names[name] = r + if trace_objects then + report_objects("reserving number %a under name %a",r,name) end - return r + elseif trace_objects then + report_objects("reserving number %a",r) end -end - -function lpdf.reserveannotation() - return pdfreserveobject("annot") + return r end -- lpdf.immediateobject = pdfimmediateobject @@ -383,11 +461,29 @@ end -- lpdf.object = pdfdeferredobject -- lpdf.referenceobject = pdfreferenceobject -lpdf.pagereference = pdf.pageref or tex.pdfpageref -lpdf.registerannotation = pdf.registerannot +local pagereference = pdf.pageref or tex.pdfpageref +local nofpages = 0 + +function lpdf.pagereference(n) + if nofpages == 0 then + nofpages = structures.pages.nofpages + if nofpages == 0 then + nofpages = 1 + end + end + if n > nofpages then + return pagereference(nofpages) -- or 1, could be configureable + else + return pagereference(n) + end +end -function lpdf.delayedobject(data) -- we will get rid of this one - local n = pdfdeferredobject(data) +function lpdf.delayedobject(data,n) + if n then + pdfdeferredobject(n,data) + else + n = pdfdeferredobject(data) + end pdfreferenceobject(n) return n end @@ -484,57 +580,6 @@ function lpdf.shareobjectreference(content) end end ---~ local d = lpdf.dictionary() ---~ local e = lpdf.dictionary { ["e"] = "abc", x = lpdf.dictionary { ["f"] = "ABC" } } ---~ local f = lpdf.dictionary { ["f"] = "ABC" } ---~ local a = lpdf.array { lpdf.array { lpdf.string("xxx") } } - ---~ print(a) ---~ os.exit() - ---~ d["test"] = lpdf.string ("test") ---~ d["more"] = "more" ---~ d["bool"] = true ---~ d["numb"] = 1234 ---~ d["oeps"] = lpdf.dictionary { ["hans"] = "ton" } ---~ d["whow"] = lpdf.array { lpdf.string("ton") } - ---~ a[#a+1] = lpdf.string("xxx") ---~ a[#a+1] = lpdf.string("yyy") - ---~ d.what = a - ---~ print(e) - ---~ local d = lpdf.dictionary() ---~ d["abcd"] = { 1, 2, 3, "test" } ---~ print(d) ---~ print(d()) - ---~ local d = lpdf.array() ---~ d[#d+1] = 1 ---~ d[#d+1] = 2 ---~ d[#d+1] = 3 ---~ d[#d+1] = "test" ---~ print(d) - ---~ local d = lpdf.array() ---~ d[#d+1] = { 1, 2, 3, "test" } ---~ print(d) - ---~ local d = lpdf.array() ---~ d[#d+1] = { a=1, b=2, c=3, d="test" } ---~ print(d) - ---~ local s = lpdf.constant("xx") ---~ print(s) -- fails somehow ---~ print(s()) -- fails somehow - ---~ local s = lpdf.boolean(false) ---~ s.value = true ---~ print(s) ---~ print(s()) - -- three priority levels, default=2 local pagefinalizers, documentfinalizers = { { }, { }, { } }, { { }, { }, { } } @@ -606,8 +651,8 @@ end lpdf.registerpagefinalizer = registerpagefinalizer lpdf.registerdocumentfinalizer = registerdocumentfinalizer -function lpdf.finalizepage() - if not environment.initex then +function lpdf.finalizepage(shipout) + if shipout and not environment.initex then -- resetpageproperties() -- maybe better before run(pagefinalizers,"page") setpageproperties() @@ -625,9 +670,27 @@ function lpdf.finalizedocument() end end -backends.pdf.codeinjections.finalizepage = lpdf.finalizepage -- will go when we have hook +-- backends.pdf.codeinjections.finalizepage = lpdf.finalizepage -- no longer triggered at the tex end + +if not callbacks.register("finish_pdfpage", lpdf.finalizepage) then + + local find_tail = nodes.tail + local latelua_node = nodes.pool.latelua + + function backends.pdf.nodeinjections.finalizepage(head) + local t = find_tail(head.list) + if t then + local n = latelua_node("lpdf.finalizepage(true)") -- last in the shipout + t.next = n + n.prev = t + end + return head, true + end + + nodes.tasks.appendaction("shipouts","normalizers","backends.pdf.nodeinjections.finalizepage") + +end ---~ callbacks.register("finish_pdfpage", lpdf.finalizepage) callbacks.register("finish_pdffile", lpdf.finalizedocument) -- some minimal tracing, handy for checking the order @@ -718,7 +781,7 @@ registerpagefinalizer(checkshades,3,"shades") function lpdf.rotationcm(a) local s, c = sind(a), cosd(a) - return format("%0.6f %0.6f %0.6f %0.6f 0 0 cm",c,s,-s,c) + return format("%0.6F %0.6F %0.6F %0.6F 0 0 cm",c,s,-s,c) end -- ! -> universaltime @@ -795,29 +858,29 @@ end -- lpdf.addtoinfo("ConTeXt.Jobname", environment.jobname) -- lpdf.addtoinfo("ConTeXt.Url", "www.pragma-ade.com") -if not pdfreferenceobject then - - local delayed = { } - - local function flush() - local n = 0 - for k,v in next, delayed do - pdfimmediateobject(k,v) - n = n + 1 - end - if trace_objects then - report_objects("%s objects flushed",n) - end - delayed = { } - end - - lpdf.registerdocumentfinalizer(flush,3,"objects") -- so we need a final flush too - lpdf.registerpagefinalizer (flush,3,"objects") -- somehow this lags behind .. I need to look into that some day - - function lpdf.delayedobject(data) - local n = pdfreserveobject() - delayed[n] = data - return n - end - -end +-- if not pdfreferenceobject then +-- +-- local delayed = { } +-- +-- local function flush() +-- local n = 0 +-- for k,v in next, delayed do +-- pdfimmediateobject(k,v) +-- n = n + 1 +-- end +-- if trace_objects then +-- report_objects("%s objects flushed",n) +-- end +-- delayed = { } +-- end +-- +-- lpdf.registerdocumentfinalizer(flush,3,"objects") -- so we need a final flush too +-- lpdf.registerpagefinalizer (flush,3,"objects") -- somehow this lags behind .. I need to look into that some day +-- +-- function lpdf.delayedobject(data) +-- local n = pdfreserveobject() +-- delayed[n] = data +-- return n +-- end +-- +-- end |