1/*
2 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
3 * Copyright (C) 2018-2019 Apple Inc. All rights reserved.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 */
20
21#pragma once
22
23#include "SVGPathUtilities.h"
24#include "SVGPropertyTraits.h"
25#include <wtf/Vector.h>
26
27namespace WebCore {
28
29// Type definitions for the byte stream data
30typedef union {
31 bool value;
32 unsigned char bytes[sizeof(bool)];
33} BoolByte;
34
35typedef union {
36 float value;
37 unsigned char bytes[sizeof(float)];
38} FloatByte;
39
40typedef union {
41 unsigned short value;
42 unsigned char bytes[sizeof(unsigned short)];
43} UnsignedShortByte;
44
45class SVGPathByteStream {
46 WTF_MAKE_FAST_ALLOCATED;
47public:
48 typedef Vector<unsigned char> Data;
49 typedef Data::const_iterator DataIterator;
50
51 SVGPathByteStream() { }
52
53 SVGPathByteStream(const String& string)
54 {
55 buildSVGPathByteStreamFromString(string, *this, UnalteredParsing);
56 }
57
58 SVGPathByteStream(const SVGPathByteStream& other)
59 {
60 *this = other;
61 }
62
63 SVGPathByteStream(SVGPathByteStream&& other)
64 {
65 *this = WTFMove(other);
66 }
67
68 SVGPathByteStream& operator=(const SVGPathByteStream& other)
69 {
70 if (*this == other)
71 return *this;
72 m_data = other.m_data;
73 return *this;
74 }
75
76 SVGPathByteStream& operator=(SVGPathByteStream&& other)
77 {
78 if (*this == other)
79 return *this;
80 m_data = WTFMove(other.m_data);
81 return *this;
82 }
83
84 bool operator==(const SVGPathByteStream& other) const { return m_data == other.m_data; }
85 bool operator!=(const SVGPathByteStream& other) const { return !(*this == other); }
86
87 std::unique_ptr<SVGPathByteStream> copy() const
88 {
89 return std::make_unique<SVGPathByteStream>(*this);
90 }
91
92 DataIterator begin() const { return m_data.begin(); }
93 DataIterator end() const { return m_data.end(); }
94
95 void append(unsigned char byte) { m_data.append(byte); }
96 void append(const SVGPathByteStream& other) { m_data.appendVector(other.m_data); }
97 void clear() { m_data.clear(); }
98 bool isEmpty() const { return m_data.isEmpty(); }
99 unsigned size() const { return m_data.size(); }
100
101private:
102 Data m_data;
103};
104
105} // namespace WebCore
106