1/*
2 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB.  If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20#ifndef SVGPathByteStream_h
21#define SVGPathByteStream_h
22
23#include <wtf/Noncopyable.h>
24#include <wtf/Vector.h>
25
26namespace WebCore {
27
28// Type definitions for the byte stream data
29typedef union {
30    bool value;
31    unsigned char bytes[sizeof(bool)];
32} BoolByte;
33
34typedef union {
35    float value;
36    unsigned char bytes[sizeof(float)];
37} FloatByte;
38
39typedef union {
40    unsigned short value;
41    unsigned char bytes[sizeof(unsigned short)];
42} UnsignedShortByte;
43
44class SVGPathByteStream {
45    WTF_MAKE_FAST_ALLOCATED;
46public:
47    typedef Vector<unsigned char> Data;
48    typedef Data::const_iterator DataIterator;
49
50    SVGPathByteStream() { }
51    SVGPathByteStream(const Data& data) : m_data(data) { }
52
53    std::unique_ptr<SVGPathByteStream> copy() const
54    {
55        return std::make_unique<SVGPathByteStream>(m_data);
56    }
57
58    DataIterator begin() { return m_data.begin(); }
59    DataIterator end() { return m_data.end(); }
60    void append(unsigned char byte) { m_data.append(byte); }
61    void append(SVGPathByteStream* other)
62    {
63        for (DataIterator it = other->begin(); it != other->end(); ++it)
64            append(*it);
65    }
66    void clear() { m_data.clear(); }
67    bool isEmpty() const { return !m_data.size(); }
68    unsigned size() const { return m_data.size(); }
69
70    // Only defined to let SVGAnimatedPathAnimator use the standard list code paths - this method is never called.
71    void resize(unsigned) { }
72
73private:
74    Data m_data;
75};
76
77} // namespace WebCore
78
79#endif // SVGPathByteStream_h
80