1 /*
2 * Copyright (C) 2008, 2009 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "config.h"
27 #include "SegmentedFontData.h"
28
29 #include "PlatformString.h"
30 #include "SimpleFontData.h"
31 #include <wtf/Assertions.h>
32
33 namespace WebCore {
34
~SegmentedFontData()35 SegmentedFontData::~SegmentedFontData()
36 {
37 }
38
fontDataForCharacter(UChar32 c) const39 const SimpleFontData* SegmentedFontData::fontDataForCharacter(UChar32 c) const
40 {
41 Vector<FontDataRange>::const_iterator end = m_ranges.end();
42 for (Vector<FontDataRange>::const_iterator it = m_ranges.begin(); it != end; ++it) {
43 if (it->from() <= c && it->to() >= c)
44 return it->fontData();
45 }
46 return m_ranges[0].fontData();
47 }
48
containsCharacter(UChar32 c) const49 bool SegmentedFontData::containsCharacter(UChar32 c) const
50 {
51 Vector<FontDataRange>::const_iterator end = m_ranges.end();
52 for (Vector<FontDataRange>::const_iterator it = m_ranges.begin(); it != end; ++it) {
53 if (c >= it->from() && c <= it->to())
54 return true;
55 }
56 return false;
57 }
58
containsCharacters(const UChar * characters,int length) const59 bool SegmentedFontData::containsCharacters(const UChar* characters, int length) const
60 {
61 UChar32 c;
62 for (int i = 0; i < length; ) {
63 U16_NEXT(characters, i, length, c)
64 if (!containsCharacter(c))
65 return false;
66 }
67 return true;
68 }
69
isCustomFont() const70 bool SegmentedFontData::isCustomFont() const
71 {
72 // All segmented fonts are custom fonts.
73 return true;
74 }
75
isLoading() const76 bool SegmentedFontData::isLoading() const
77 {
78 Vector<FontDataRange>::const_iterator end = m_ranges.end();
79 for (Vector<FontDataRange>::const_iterator it = m_ranges.begin(); it != end; ++it) {
80 if (it->fontData()->isLoading())
81 return true;
82 }
83 return false;
84 }
85
isSegmented() const86 bool SegmentedFontData::isSegmented() const
87 {
88 return true;
89 }
90
91 #ifndef NDEBUG
description() const92 String SegmentedFontData::description() const
93 {
94 return "[segmented font]";
95 }
96 #endif
97
98 } // namespace WebCore
99