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 #if ENABLE(SVG)
24 #include <wtf/Noncopyable.h>
25 #include <wtf/PassOwnPtr.h>
26 #include <wtf/Vector.h>
27 
28 namespace WebCore {
29 
30 // Type definitions for the byte stream data
31 typedef union {
32     bool value;
33     unsigned char bytes[sizeof(bool)];
34 } BoolByte;
35 
36 typedef union {
37     float value;
38     unsigned char bytes[sizeof(float)];
39 } FloatByte;
40 
41 typedef union {
42     unsigned short value;
43     unsigned char bytes[sizeof(unsigned short)];
44 } UnsignedShortByte;
45 
46 class SVGPathByteStream {
47     WTF_MAKE_NONCOPYABLE(SVGPathByteStream); WTF_MAKE_FAST_ALLOCATED;
48 public:
create()49     static PassOwnPtr<SVGPathByteStream> create()
50     {
51         return adoptPtr(new SVGPathByteStream);
52     }
53 
copy()54     PassOwnPtr<SVGPathByteStream> copy()
55     {
56         return adoptPtr(new SVGPathByteStream(m_data));
57     }
58 
59     typedef Vector<unsigned char> Data;
60     typedef Data::const_iterator DataIterator;
61 
begin()62     DataIterator begin() { return m_data.begin(); }
end()63     DataIterator end() { return m_data.end(); }
append(unsigned char byte)64     void append(unsigned char byte) { m_data.append(byte); }
clear()65     void clear() { m_data.clear(); }
isEmpty()66     bool isEmpty() const { return !m_data.size(); }
67 
68 private:
SVGPathByteStream()69     SVGPathByteStream() { }
SVGPathByteStream(Data & data)70     SVGPathByteStream(Data& data)
71         : m_data(data)
72     {
73     }
74 
75     Data m_data;
76 };
77 
78 } // namespace WebCore
79 
80 #endif // ENABLE(SVG)
81 #endif // SVGPathByteStream_h
82