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
|
/*---------------------------------------------------------------------------*
| PDFlib - A library for generating PDF on the fly |
+---------------------------------------------------------------------------+
| Copyright (c) 1997-2006 Thomas Merz and PDFlib GmbH. All rights reserved. |
+---------------------------------------------------------------------------+
| |
| This software is subject to the PDFlib license. It is NOT in the |
| public domain. Extended versions and commercial licenses are |
| available, please check http://www.pdflib.com. |
| |
*---------------------------------------------------------------------------*/
/* $Id: p_cid.c,v 1.2 2009/10/20 18:14:16 scuri Exp $
*
* PDFlib CID font handling routines
*
*/
#include "p_intern.h"
#include "p_font.h"
#include "ft_cid.h"
/*
** Returns CMap slot and for standard CJK fonts: fontandle.
**
** pdc_invalidenc: predefined CMap not found
** pdc_cid or pdc_unicode: predefined CMap found
**
** *o_slot:
** >= 0: standard font found
** < 0: |error code|
*/
pdc_bool
pdf_handle_cidfont(PDF *p, const char *fontname, const char *encoding,
pdc_encoding enc, pdf_font *font, int *o_slot,
pdc_encoding *newenc)
{
const char *encapiname = encoding;
fnt_cmap_info cmapinfo;
const fnt_font_metric *fontmetric;
pdc_bool isidentity = pdc_false;
pdc_bool isstdfont = pdc_false;
pdc_bool iscjkcp = pdc_false;
int charcoll, slot;
(void) enc;
(void) iscjkcp;
(void) encapiname;
*o_slot = -1;
*newenc = pdc_invalidenc;
/*
* Look whether font is already in the cache.
* If font with same name and encoding is found,
* returns its slot number.
*/
for (slot = 0; slot < p->fonts_number; slot++)
{
if (p->fonts[slot].ft.enc == pdc_cid &&
p->fonts[slot].opt.fontstyle == font->opt.fontstyle &&
p->fonts[slot].opt.embedding == font->opt.embedding &&
!strcmp(p->fonts[slot].apiname, fontname) &&
!strcmp(p->fonts[slot].ft.cmapname, encoding))
{
*o_slot = slot;
*newenc = pdc_cid;
return pdc_true;
}
}
/* Check the requested CMap */
charcoll = fnt_get_predefined_cmap_info(encoding, &cmapinfo);
if (charcoll == (int) cc_none)
return pdc_true;
pdc_logg_cond(p->pdc, 1, trc_font,
"\tPredefined CMap \"%s\" found\n", encoding);
/* Check whether this CMap is supported in the desired PDF version */
if (cmapinfo.compatibility > p->compatibility)
{
pdc_set_errmsg(p->pdc, PDF_E_DOC_PDFVERSION,
encoding, pdc_get_pdfversion(p->pdc, p->compatibility), 0, 0);
return pdc_false;
}
/* For Unicode capable language wrappers only UCS2/UTF16 CMaps allowed */
if (cmapinfo.codesize == 0 && p->pdc->unicaplang)
{
pdc_set_errmsg(p->pdc, PDF_E_FONT_NEEDUCS2, 0, 0, 0, 0);
return pdc_false;
}
/* Check whether the font name is among the known Acrobat CJK fonts */
charcoll = fnt_get_preinstalled_cidfont(fontname, &fontmetric);
isidentity = cmapinfo.charcoll == (int) cc_identity;
if (isidentity)
cmapinfo.charcoll = abs(charcoll);
/* known Acrobat CID font */
if (charcoll != (int) cc_none)
{
pdc_logg_cond(p->pdc, 1, trc_font,
"\tStandard CJK font \"%s\" found\n", fontname);
/* Selected CMap and known standard font don't match */
if ((cmapinfo.charcoll != abs(charcoll) ||
(charcoll == (int) cc_japanese && cmapinfo.codesize == -2)))
{
pdc_set_errmsg(p->pdc, PDF_E_CJK_UNSUPP_CHARCOLL,
0, 0, 0, 0);
return pdc_false;
}
isstdfont = pdc_true;
/* Embedding not possible */
if (font->opt.embedding)
{
pdc_set_errmsg(p->pdc, PDF_E_FONT_EMBEDCMAP, 0, 0, 0, 0);
return pdc_false;
}
}
#ifdef WIN32
else if (iscjkcp && !p->pdc->ptfrun)
{
return pdc_true;
}
#endif
/* embedding check */
if (!pdf_check_font_embedding(p, font, fontname))
return pdc_false;
/* supplement number, number of codes = (maximal) number of CIDs */
font->supplement = fnt_get_supplement(&cmapinfo, p->compatibility);
if (isidentity)
font->supplement = -1;
font->ft.numcodes = fnt_get_maxcid(cmapinfo.charcoll, font->supplement) + 1;
{
font->passthrough = pdc_true;
font->codesize = 0;
}
/* CMap and default settings */
font->ft.vertical = cmapinfo.vertical;
font->ft.cmapname = pdc_strdup(p->pdc, encoding);
if (font->outcmapname == NULL)
font->outcmapname = pdc_strdup(p->pdc, encoding);
font->ft.enc = pdc_cid;
font->iscidfont = pdc_true;
/* Fill up the font struct */
fnt_fill_font_metric(p->pdc, &font->ft, pdc_false, fontmetric);
/* CID widths not available */
font->widthsmissing = pdc_true;
pdc_logg_cond(p->pdc, 1, trc_font,
"\n\t%s CJK font: \"%s\"\n\tPredefined CMap: \"%s\"\n"
"\tOrdering: \"%s\"\n\tSupplement: %d\n",
font->ft.isstdfont ? "Adobe Standard" : "Custom", fontname, encoding,
fnt_get_ordering_cid(font->ft.m.charcoll), font->supplement);
*newenc = pdc_cid;
return pdc_true;
}
#ifdef PDF_CJKFONTWIDTHS_SUPPORTED
void
pdf_put_cidglyph_widths(PDF *p, pdf_font *font)
{
if (font->opt.monospace)
{
if (font->opt.monospace != FNT_DEFAULT_CIDWIDTH)
pdc_printf(p->out, "/DW %d\n", font->opt.monospace);
}
else
{
const char **widths = fnt_get_cid_widths_array(p->pdc, &font->ft);
int i;
pdc_puts(p->out, "/W");
pdc_begin_array(p->out);
for (i = 0; i < FNT_CIDMETRIC_INCR - 1; i++)
pdc_puts(p->out, widths[i]);
pdc_end_array(p->out);
}
}
#endif /* PDF_CJKFONTWIDTHS_SUPPORTED */
|
