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
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
|
% pdfshipout.w
%
% Copyright 2010-2012 Taco Hoekwater <taco@@luatex.org>
%
% This file is part of LuaTeX.
%
% LuaTeX is free software; you can redistribute it and/or modify it under
% the terms of the GNU General Public License as published by the Free
% Software Foundation; either version 2 of the License, or (at your
% option) any later version.
%
% LuaTeX is distributed in the hope that it will be useful, but WITHOUT
% ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
% FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
% License for more details.
%
% You should have received a copy of the GNU General Public License along
% with LuaTeX; if not, see <http://www.gnu.org/licenses/>.
@ @c
#include "ptexlib.h"
@ @c
scaledpos shipbox_refpos;
@ |ship_out| is used to shipout a box to PDF or DVI mode. If |shipping_mode| is
set to |SHIPPING_FORM| then the output will be a Form object (only PDF), and if
it is set to |SHIPPING_PAGE| it will be a Page object.
@c
void ship_out(PDF pdf, halfword p, shipping_mode_e shipping_mode)
{
int j, k; /* indices to first ten count registers */
int post_callback_id;
int pre_callback_id;
posstructure refpoint; /* the origin pos. on the page */
int rule_callback_id = 0;
scaledpos cur = { 0, 0 };
refpoint.pos.h = 0;
refpoint.pos.v = 0;
ensure_output_state(pdf, ST_HEADER_WRITTEN);
fix_o_mode(); /* this is only for complaining if \.{\\outputmode} has changed */
init_backend_functionpointers(output_mode_used);
pdf->f_cur = null_font;
/*
Start sheet {\sl Sync\TeX} information record; we assume that |pdf_output| is
properly set up.
*/
if (synctex_par) {
if (output_mode_used == OMODE_DVI) {
synctexsheet(mag_par);
} else {
synctexsheet(1000);
}
}
pre_callback_id = callback_defined(start_page_number_callback);
post_callback_id = callback_defined(stop_page_number_callback);
if ((tracing_output_par > 0) && (pre_callback_id == 0)) {
tprint_nl("");
print_ln();
tprint("Completed box being shipped out");
}
global_shipping_mode = shipping_mode;
if (shipping_mode == SHIPPING_PAGE) {
if (pre_callback_id > 0)
(void) run_callback(pre_callback_id, "->");
else if (pre_callback_id == 0) {
if (term_offset > max_print_line - 9)
print_ln();
else if ((term_offset > 0) || (file_offset > 0))
print_char(' ');
print_char('[');
j = 9;
while ((count(j) == 0) && (j > 0))
j--;
for (k = 0; k <= j; k++) {
print_int(count(k));
if (k < j)
print_char('.');
}
}
}
if ((tracing_output_par > 0) && shipping_mode == SHIPPING_PAGE) {
print_char(']');
update_terminal();
begin_diagnostic();
show_box(p);
end_diagnostic(true);
}
/* Ship box |p| out */
if (shipping_mode == SHIPPING_PAGE && box_dir(p) != page_direction_par)
normal_warning("backend","pagedir differs from bodydir, the output may be placed wrongly on the page");
/*
Update the values of |max_h| and |max_v|; but if the page is too large,
|goto done|. Sometimes the user will generate a huge page because other
error messages are being ignored. Such pages are not output to the
\.{dvi} file, since they may confuse the printing software.
*/
if ((height(p) > max_dimen) || (depth(p) > max_dimen) || (height(p) + depth(p) + v_offset_par > max_dimen) || (width(p) + h_offset_par > max_dimen)) {
const char *hlp[] = {
"The page just created is more than 18 feet tall or",
"more than 18 feet wide, so I suspect something went wrong.",
NULL
};
tex_error("Huge page cannot be shipped out", hlp);
if (tracing_output_par <= 0) {
begin_diagnostic();
tprint_nl("The following box has been deleted:");
show_box(p);
end_diagnostic(true);
}
goto DONE;
}
if (height(p) + depth(p) + v_offset_par > max_v)
max_v = height(p) + depth(p) + v_offset_par;
if (width(p) + h_offset_par > max_h)
max_h = width(p) + h_offset_par;
/* Calculate page dimensions and margins */
if (global_shipping_mode == SHIPPING_PAGE) {
if (page_width_par > 0)
pdf->page_size.h = page_width_par;
else {
switch (page_direction_par) {
case dir_TLT:
pdf->page_size.h = width(p) + 2 * page_left_offset_par;
break;
case dir_TRT:
pdf->page_size.h = width(p) + 2 * page_right_offset_par;
break;
case dir_LTL:
pdf->page_size.h = height(p) + depth(p) + 2 * page_left_offset_par;
break;
case dir_RTT:
pdf->page_size.h = height(p) + depth(p) + 2 * page_right_offset_par;
break;
default:
pdf->page_size.h = width(p) + 2 * page_left_offset_par;
normal_warning("pdf backend","bad page direction, assuming TLT, case 1");
}
}
if (page_height_par > 0)
pdf->page_size.v = page_height_par;
else {
switch (page_direction_par) {
case dir_TLT:
case dir_TRT:
pdf->page_size.v = height(p) + depth(p) + 2 * page_top_offset_par;
break;
case dir_LTL:
case dir_RTT:
pdf->page_size.v = width(p) + 2 * page_top_offset_par;
break;
default:
pdf->page_size.v = height(p) + depth(p) + 2 * page_top_offset_par;
normal_warning("pdf backend","bad page direction, assuming TLT, case 2");
}
}
/*
Think in upright page/paper coordinates (page origin = lower left edge).
First preset |refpoint.pos| to the DVI origin (near upper left page edge).
*/
switch (output_mode_used) {
case OMODE_DVI:
/* hh: how can we end up here? */
refpoint.pos.h = one_true_inch;
refpoint.pos.v = pdf->page_size.v - one_true_inch;
dvi = refpoint.pos;
break;
case OMODE_PDF:
refpoint.pos.h = pdf_h_origin;
refpoint.pos.v = pdf->page_size.v - pdf_v_origin;
break;
default:
normal_error("pdf backend", "unknown output mode");
}
/*
Then shift |refpoint.pos| of the DVI origin depending on the
|page_direction| within the upright (TLT) page coordinate system
*/
switch (page_direction_par) {
case dir_TLT:
case dir_LTL:
refpoint.pos.h += h_offset_par;
refpoint.pos.v -= v_offset_par;
break;
case dir_TRT:
case dir_RTT:
refpoint.pos.h += pdf->page_size.h - page_right_offset_par - one_true_inch;
refpoint.pos.v -= v_offset_par;
break;
default:
refpoint.pos.h += h_offset_par;
refpoint.pos.v -= v_offset_par;
normal_warning("pdf backend","bad page direction, assuming TLT, case 3");
}
/*
Then switch to page box coordinate system; do |height(p)| movement,
to get the location of the box origin.
*/
pdf->posstruct->dir = page_direction_par;
cur.h = 0;
cur.v = height(p);
synch_pos_with_cur(pdf->posstruct, &refpoint, cur);
} else {
/* shipping a /Form */
pdf->posstruct->dir = box_dir(p);
switch (pdf->posstruct->dir) {
case dir_TLT:
case dir_TRT:
pdf->page_size.h = width(p);
pdf->page_size.v = height(p) + depth(p);
break;
case dir_LTL:
case dir_RTT:
pdf->page_size.h = height(p) + depth(p);
pdf->page_size.v = width(p);
break;
default:
pdf->page_size.h = width(p);
pdf->page_size.v = height(p) + depth(p);
normal_warning("pdf backend","bad page direction, assuming TLT, case 4");
}
switch (pdf->posstruct->dir) {
case dir_TLT:
pdf->posstruct->pos.h = 0;
pdf->posstruct->pos.v = depth(p);
break;
case dir_TRT:
pdf->posstruct->pos.h = width(p);
pdf->posstruct->pos.v = depth(p);
break;
case dir_LTL:
pdf->posstruct->pos.h = height(p);
pdf->posstruct->pos.v = width(p);
break;
case dir_RTT:
pdf->posstruct->pos.h = depth(p);
pdf->posstruct->pos.v = width(p);
break;
default:
pdf->posstruct->pos.h = 0;
pdf->posstruct->pos.v = depth(p);
normal_warning("pdf backend","bad page direction, assuming TLT, case 5");
}
}
/* Now we are at the point on the page where the origin of the page box should go. */
shipbox_refpos = pdf->posstruct->pos; /* for \.{\\gleaders} */
switch (output_mode_used) {
case OMODE_DVI:
dvi_begin_page(pdf);
break;
case OMODE_PDF:
pdf_begin_page(pdf);
break;
default:
normal_error("pdf backend", "unknown output mode");
}
rule_callback_id = callback_defined(process_rule_callback);
switch (type(p)) {
case vlist_node:
vlist_out(pdf, p, rule_callback_id);
break;
case hlist_node:
hlist_out(pdf, p, rule_callback_id);
break;
default:
normal_error("pdf backend", "no vlist or hlist in (xform) shipout");
}
if (shipping_mode == SHIPPING_PAGE)
total_pages++;
cur_s = -1;
/* Finish shipping */
switch (output_mode_used) {
case OMODE_DVI:
dvi_end_page(pdf);
break;
case OMODE_PDF:
pdf_end_page(pdf);
break;
default:
normal_error("pdf backend", "unknown output mode");
}
DONE:
if ((tracing_output_par <= 0) && (post_callback_id == 0) && shipping_mode == SHIPPING_PAGE) {
print_char(']');
update_terminal();
}
dead_cycles = 0;
/* Flush the box from memory, showing statistics if requested */
if ((tracing_stats_par > 1) && (pre_callback_id == 0)) {
tprint_nl("Memory usage before: ");
print_int(var_used);
print_char('&');
print_int(dyn_used);
print_char(';');
}
flush_node_list(p);
if ((tracing_stats_par > 1) && (post_callback_id == 0)) {
tprint(" after: ");
print_int(var_used);
print_char('&');
print_int(dyn_used);
print_ln();
}
if (shipping_mode == SHIPPING_PAGE && (post_callback_id > 0))
(void) run_callback(post_callback_id, "->");
/* Finish sheet {\sl Sync\TeX} information record */
if (synctex_par)
synctexteehs();
global_shipping_mode = NOT_SHIPPING;
}
|
