1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
if not modules then modules = { } end modules ['lpdf-nod'] = {
version = 1.001,
comment = "companion to lpdf-ini.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
local type = type
local formatters = string.formatters
local whatsitcodes = nodes.whatsitcodes
local nodeinjections = backends.nodeinjections
local nuts = nodes.nuts
local tonut = nuts.tonut
local setfield = nuts.setfield
local copy_node = nuts.copy
local new_node = nuts.new
local nodepool = nuts.pool
local register = nodepool.register
local pdforiginliteral = register(new_node("whatsit", whatsitcodes.pdfliteral)) setfield(pdforiginliteral,"mode",0) -- set_origin_code
local pdfpageliteral = register(new_node("whatsit", whatsitcodes.pdfliteral)) setfield(pdfpageliteral, "mode",1) -- page_code
local pdfdirectliteral = register(new_node("whatsit", whatsitcodes.pdfliteral)) setfield(pdfdirectliteral,"mode",2) -- direct_code
local pdfrawliteral = register(new_node("whatsit", whatsitcodes.pdfliteral)) setfield(pdfrawliteral, "mode",3) -- raw_code
local pdfsave = register(new_node("whatsit", whatsitcodes.pdfsave))
local pdfrestore = register(new_node("whatsit", whatsitcodes.pdfrestore))
local pdfsetmatrix = register(new_node("whatsit", whatsitcodes.pdfsetmatrix))
----- pdfdest = register(new_node("whatsit", whatsitcodes.pdfdest)) setfield(pdfdest,"named_id",1) -- xyz_zoom untouched
----- pdfannot = register(new_node("whatsit", whatsitcodes.pdfannot))
local variables = interfaces.variables
local views = { -- beware, we do support the pdf keys but this is *not* official
xyz = 0, [variables.standard] = 0,
fit = 1, [variables.fit] = 1,
fith = 2, [variables.width] = 2,
fitv = 3, [variables.height] = 3,
fitb = 4,
fitbh = 5, [variables.minwidth] = 5,
fitbv = 6, [variables.minheight] = 6,
fitr = 7,
}
function nodepool.pdforiginliteral(str) local t = copy_node(pdforiginliteral) setfield(t,"data",str) return t end
function nodepool.pdfpageliteral (str) local t = copy_node(pdfpageliteral ) setfield(t,"data",str) return t end
function nodepool.pdfdirectliteral(str) local t = copy_node(pdfdirectliteral) setfield(t,"data",str) return t end
function nodepool.pdfrawliteral (str) local t = copy_node(pdfrawliteral ) setfield(t,"data",str) return t end
nodepool.pdfliteral = nodepool.pdfpageliteral
function nodepool.pdfsave()
return copy_node(pdfsave)
end
function nodepool.pdfrestore()
return copy_node(pdfrestore)
end
function nodepool.pdfsetmatrix(rx,sx,sy,ry,tx,ty) -- todo: tx ty
local t = copy_node(pdfsetmatrix)
if type(rx) == "string" then
setfield(t,"data",rx)
else
if not rx then
rx = 1
elseif rx == 0 then
rx = 0.0001
end
if not ry then
ry = 1
elseif ry == 0 then
ry = 0.0001
end
if not sx then
sx = 0
end
if not sy then
sy = 0
end
if sx == 0 and sy == 0 then
if rx == 1 and ry == 1 then
setfield(t,"data","1 0 0 1")
else
setfield(t,"data",formatters["%0.6F 0 0 %0.6F"](rx,ry))
end
else
setfield(t,"data",formatters["%0.6F %0.6F %0.6F %0.6F"](rx,sx,sy,ry))
end
end
return t
end
nodeinjections.save = nodepool.pdfsave
nodeinjections.restore = nodepool.pdfrestore
nodeinjections.transform = nodepool.pdfsetmatrix
-- the next one is implemented differently, using latelua
function nodepool.pdfannotation(w,h,d,data,n)
report("don't use node based annotations!")
os.exit()
-- local t = copy_node(pdfannot)
-- if w and w ~= 0 then
-- setfield(t,"width",w)
-- end
-- if h and h ~= 0 then
-- setfield(t,"height",h)
-- end
-- if d and d ~= 0 then
-- setfield(t,"depth",d)
-- end
-- if n then
-- setfield(t,"objnum",n)
-- end
-- if data and data ~= "" then
-- setfield(t,"data",data)
-- end
-- return t
end
-- (!) The next code in pdfdest.w is wrong:
--
-- case pdf_dest_xyz:
-- if (matrixused()) {
-- set_rect_dimens(pdf, p, parent_box, cur, alt_rule, pdf_dest_margin) ;
-- } else {
-- pdf_ann_left(p) = pos.h ;
-- pdf_ann_top (p) = pos.v ;
-- }
-- break ;
--
-- so we need to force a matrix.
function nodepool.pdfdestination(w,h,d,name,view,n)
report("don't use node based destinations!")
os.exit()
-- local t = copy_node(pdfdest)
-- local hasdimensions = false
-- if w and w ~= 0 then
-- setfield(t,"width",w)
-- hasdimensions = true
-- end
-- if h and h ~= 0 then
-- setfield(t,"height",h)
-- hasdimensions = true
-- end
-- if d and d ~= 0 then
-- setfield(t,"depth",d)
-- hasdimensions = true
-- end
-- if n then
-- setfield(t,"objnum",n)
-- end
-- view = views[view] or view or 1 -- fit is default
-- setfield(t,"dest_id",name)
-- setfield(t,"dest_type",view)
-- if hasdimensions and view == 0 then -- xyz
-- -- see (!) s -> m -> t -> r
-- -- linked
-- local s = copy_node(pdfsave)
-- local m = copy_node(pdfsetmatrix)
-- local r = copy_node(pdfrestore)
-- setfield(m,"data","1 0 0 1")
-- setfield(s,"next",m)
-- setfield(m,"next",t)
-- setfield(t,"next",r)
-- setfield(m,"prev",s)
-- setfield(t,"prev",m)
-- setfield(r,"prev",t)
-- return s -- a list
-- else
-- return t
-- end
end
|
