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
|
/*
* Copyright (c) 2010, Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "FontTranscoder.h"
#include "FontDescription.h"
#include "TextEncoding.h"
#include <wtf/unicode/CharacterNames.h>
namespace WebCore {
FontTranscoder::FontTranscoder()
{
m_converterTypes.add("MS PGothic", BackslashToYenSign);
UChar unicodeNameMSPGothic[] = {0xFF2D, 0xFF33, 0x0020, 0xFF30, 0x30B4, 0x30B7, 0x30C3, 0x30AF};
m_converterTypes.add(AtomicString(unicodeNameMSPGothic, WTF_ARRAY_LENGTH(unicodeNameMSPGothic)), BackslashToYenSign);
m_converterTypes.add("MS PMincho", BackslashToYenSign);
UChar unicodeNameMSPMincho[] = {0xFF2D, 0xFF33, 0x0020, 0xFF30, 0x660E, 0x671D};
m_converterTypes.add(AtomicString(unicodeNameMSPMincho, WTF_ARRAY_LENGTH(unicodeNameMSPMincho)), BackslashToYenSign);
m_converterTypes.add("MS Gothic", BackslashToYenSign);
UChar unicodeNameMSGothic[] = {0xFF2D, 0xFF33, 0x0020, 0x30B4, 0x30B7, 0x30C3, 0x30AF};
m_converterTypes.add(AtomicString(unicodeNameMSGothic, WTF_ARRAY_LENGTH(unicodeNameMSGothic)), BackslashToYenSign);
m_converterTypes.add("MS Mincho", BackslashToYenSign);
UChar unicodeNameMSMincho[] = {0xFF2D, 0xFF33, 0x0020, 0x660E, 0x671D};
m_converterTypes.add(AtomicString(unicodeNameMSMincho, WTF_ARRAY_LENGTH(unicodeNameMSMincho)), BackslashToYenSign);
m_converterTypes.add("Meiryo", BackslashToYenSign);
UChar unicodeNameMeiryo[] = {0x30E1, 0x30A4, 0x30EA, 0x30AA};
m_converterTypes.add(AtomicString(unicodeNameMeiryo, WTF_ARRAY_LENGTH(unicodeNameMeiryo)), BackslashToYenSign);
}
FontTranscoder::ConverterType FontTranscoder::converterType(const FontDescription& fontDescription, const TextEncoding* encoding) const
{
const AtomicString& fontFamily = fontDescription.family().family().string();
if (!fontFamily.isNull()) {
HashMap<AtomicString, ConverterType>::const_iterator found = m_converterTypes.find(fontFamily);
if (found != m_converterTypes.end())
return found->second;
}
// IE's default fonts for Japanese encodings change backslashes into yen signs.
// We emulate this behavior only when no font is explicitly specified.
if (encoding && encoding->backslashAsCurrencySymbol() != '\\' && !fontDescription.isSpecifiedFont())
return BackslashToYenSign;
return NoConversion;
}
void FontTranscoder::convert(String& text, const FontDescription& fontDescription, const TextEncoding* encoding) const
{
switch (converterType(fontDescription, encoding)) {
case BackslashToYenSign: {
// FIXME: TextEncoding.h has similar code. We need to factor them out.
text.replace('\\', yenSign);
break;
}
case NoConversion:
default:
ASSERT_NOT_REACHED();
}
}
bool FontTranscoder::needsTranscoding(const FontDescription& fontDescription, const TextEncoding* encoding) const
{
ConverterType type = converterType(fontDescription, encoding);
return type != NoConversion;
}
FontTranscoder& fontTranscoder()
{
static FontTranscoder* transcoder = new FontTranscoder;
return *transcoder;
}
} // namespace WebCore
|
