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
|
/*
* Copyright © 2018 Google, Inc.
*
* This is part of HarfBuzz, a text shaping library.
*
* Permission is hereby granted, without written agreement and without
* license or royalty fees, to use, copy, modify, and distribute this
* software and its documentation for any purpose, provided that the
* above copyright notice and the following two paragraphs appear in
* all copies of this software.
*
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*
* Google Author(s): Behdad Esfahbod
*/
#include "hb.hh"
#ifndef HB_NO_NAME
#include "hb-ot-name-table.hh"
#include "hb-utf.hh"
/**
* SECTION:hb-ot-name
* @title: hb-ot-name
* @short_description: OpenType font name information
* @include: hb-ot.h
*
* Functions for fetching name strings from OpenType fonts.
**/
/**
* hb_ot_name_list_names:
* @face: font face.
* @num_entries: (out) (optional): number of returned entries.
*
* Enumerates all available name IDs and language combinations. Returned
* array is owned by the @face and should not be modified. It can be
* used as long as @face is alive.
*
* Returns: (transfer none) (array length=num_entries): Array of available name entries.
* Since: 2.1.0
**/
const hb_ot_name_entry_t *
hb_ot_name_list_names (hb_face_t *face,
unsigned int *num_entries /* OUT */)
{
const OT::name_accelerator_t &name = *face->table.name;
if (num_entries) *num_entries = name.names.length;
return (const hb_ot_name_entry_t *) name.names;
}
template <typename utf_t>
static inline unsigned int
hb_ot_name_get_utf (hb_face_t *face,
hb_ot_name_id_t name_id,
hb_language_t language,
unsigned int *text_size /* IN/OUT */,
typename utf_t::codepoint_t *text /* OUT */)
{
const OT::name_accelerator_t &name = *face->table.name;
if (!language)
language = hb_language_from_string ("en", 2);
unsigned int width;
int idx = name.get_index (name_id, language, &width);
if (idx != -1)
{
hb_bytes_t bytes = name.get_name (idx);
if (width == 2) /* UTF16-BE */
return OT::hb_ot_name_convert_utf<hb_utf16_be_t, utf_t> (bytes, text_size, text);
if (width == 1) /* ASCII */
return OT::hb_ot_name_convert_utf<hb_ascii_t, utf_t> (bytes, text_size, text);
}
if (text_size)
{
if (*text_size)
*text = 0;
*text_size = 0;
}
return 0;
}
/**
* hb_ot_name_get_utf8:
* @face: font face.
* @name_id: OpenType name identifier to fetch.
* @language: language to fetch the name for.
* @text_size: (inout) (optional): input size of @text buffer, and output size of
* text written to buffer.
* @text: (out caller-allocates) (array length=text_size): buffer to write fetched name into.
*
* Fetches a font name from the OpenType 'name' table.
* If @language is #HB_LANGUAGE_INVALID, English ("en") is assumed.
* Returns string in UTF-8 encoding. A NUL terminator is always written
* for convenience, and isn't included in the output @text_size.
*
* Returns: full length of the requested string, or 0 if not found.
* Since: 2.1.0
**/
unsigned int
hb_ot_name_get_utf8 (hb_face_t *face,
hb_ot_name_id_t name_id,
hb_language_t language,
unsigned int *text_size /* IN/OUT */,
char *text /* OUT */)
{
return hb_ot_name_get_utf<hb_utf8_t> (face, name_id, language, text_size,
(hb_utf8_t::codepoint_t *) text);
}
/**
* hb_ot_name_get_utf16:
* @face: font face.
* @name_id: OpenType name identifier to fetch.
* @language: language to fetch the name for.
* @text_size: (inout) (optional): input size of @text buffer, and output size of
* text written to buffer.
* @text: (out caller-allocates) (array length=text_size): buffer to write fetched name into.
*
* Fetches a font name from the OpenType 'name' table.
* If @language is #HB_LANGUAGE_INVALID, English ("en") is assumed.
* Returns string in UTF-16 encoding. A NUL terminator is always written
* for convenience, and isn't included in the output @text_size.
*
* Returns: full length of the requested string, or 0 if not found.
* Since: 2.1.0
**/
unsigned int
hb_ot_name_get_utf16 (hb_face_t *face,
hb_ot_name_id_t name_id,
hb_language_t language,
unsigned int *text_size /* IN/OUT */,
uint16_t *text /* OUT */)
{
return hb_ot_name_get_utf<hb_utf16_t> (face, name_id, language, text_size, text);
}
/**
* hb_ot_name_get_utf32:
* @face: font face.
* @name_id: OpenType name identifier to fetch.
* @language: language to fetch the name for.
* @text_size: (inout) (optional): input size of @text buffer, and output size of
* text written to buffer.
* @text: (out caller-allocates) (array length=text_size): buffer to write fetched name into.
*
* Fetches a font name from the OpenType 'name' table.
* If @language is #HB_LANGUAGE_INVALID, English ("en") is assumed.
* Returns string in UTF-32 encoding. A NUL terminator is always written
* for convenience, and isn't included in the output @text_size.
*
* Returns: full length of the requested string, or 0 if not found.
* Since: 2.1.0
**/
unsigned int
hb_ot_name_get_utf32 (hb_face_t *face,
hb_ot_name_id_t name_id,
hb_language_t language,
unsigned int *text_size /* IN/OUT */,
uint32_t *text /* OUT */)
{
return hb_ot_name_get_utf<hb_utf32_t> (face, name_id, language, text_size, text);
}
#endif
|