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
33namespace WebCore {
34
35SegmentedFontData::~SegmentedFontData()
36{
37}
38
39const 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
49bool 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
59bool 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
70bool SegmentedFontData::isCustomFont() const
71{
72    // All segmented fonts are custom fonts.
73    return true;
74}
75
76bool 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
86bool SegmentedFontData::isSegmented() const
87{
88    return true;
89}
90
91#ifndef NDEBUG
92String SegmentedFontData::description() const
93{
94    return "[segmented font]";
95}
96#endif
97
98} // namespace WebCore
99