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
|
/*
* Copyright (C) 2008, 2009 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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 "SegmentedFontData.h"
#include "PlatformString.h"
#include "SimpleFontData.h"
#include <wtf/Assertions.h>
namespace WebCore {
SegmentedFontData::~SegmentedFontData()
{
}
const SimpleFontData* SegmentedFontData::fontDataForCharacter(UChar32 c) const
{
Vector<FontDataRange>::const_iterator end = m_ranges.end();
for (Vector<FontDataRange>::const_iterator it = m_ranges.begin(); it != end; ++it) {
if (it->from() <= c && it->to() >= c)
return it->fontData();
}
return m_ranges[0].fontData();
}
bool SegmentedFontData::containsCharacter(UChar32 c) const
{
Vector<FontDataRange>::const_iterator end = m_ranges.end();
for (Vector<FontDataRange>::const_iterator it = m_ranges.begin(); it != end; ++it) {
if (c >= it->from() && c <= it->to())
return true;
}
return false;
}
bool SegmentedFontData::containsCharacters(const UChar* characters, int length) const
{
UChar32 c;
for (int i = 0; i < length; ) {
U16_NEXT(characters, i, length, c)
if (!containsCharacter(c))
return false;
}
return true;
}
bool SegmentedFontData::isCustomFont() const
{
// All segmented fonts are custom fonts.
return true;
}
bool SegmentedFontData::isLoading() const
{
Vector<FontDataRange>::const_iterator end = m_ranges.end();
for (Vector<FontDataRange>::const_iterator it = m_ranges.begin(); it != end; ++it) {
if (it->fontData()->isLoading())
return true;
}
return false;
}
bool SegmentedFontData::isSegmented() const
{
return true;
}
#ifndef NDEBUG
String SegmentedFontData::description() const
{
return "[segmented font]";
}
#endif
} // namespace WebCore
|
