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Side by Side Diff: third_party/WebKit/Source/platform/fonts/FontDataRange.h

Issue 1806653002: Shape unicode-range: font faces in only one iteration (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Update UnicodeRangeSetTests to RefPtrtr, rm copy constructor and test Created 4 years, 9 months ago
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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 #ifndef FontDataRange_h
27 #define FontDataRange_h
28
29 #include "platform/fonts/FontData.h"
30 #include "platform/fonts/SimpleFontData.h"
31 #include "wtf/Allocator.h"
32 #include "wtf/text/CharacterNames.h"
33
34 namespace blink {
35
36 class SimpleFontData;
37
38 struct FontDataRange {
39 DISALLOW_NEW_EXCEPT_PLACEMENT_NEW();
40 explicit FontDataRange(PassRefPtr<SimpleFontData> fontData)
41 : m_from(0)
42 , m_to(kMaxCodepoint)
43 , m_fontData(fontData)
44 {
45 }
46
47 FontDataRange()
48 : m_from(0)
49 , m_to(kMaxCodepoint)
50 , m_fontData(nullptr)
51 {
52 }
53
54 explicit FontDataRange(UChar32 from, UChar32 to, PassRefPtr<SimpleFontData> fontData)
55 : m_from(from)
56 , m_to(to)
57 , m_fontData(fontData)
58 {
59 }
60
61 UChar32 from() const { return m_from; }
62 UChar32 to() const { return m_to; }
63 bool contains(UChar32 testChar) { return testChar >= m_from && testChar <= m _to; }
64 bool isEntireRange() const { return !m_from && m_to >= kMaxCodepoint; }
65 bool hasFontData() const { return fontData(); }
66 PassRefPtr<SimpleFontData> fontData() const { return m_fontData; }
67
68 private:
69 UChar32 m_from;
70 UChar32 m_to;
71 RefPtr<SimpleFontData> m_fontData;
72 };
73
74 } // namespace blink
75
76 #endif
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