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      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/PassOwnPtr.h"
     25 #include "wtf/Vector.h"
     26 
     27 namespace WebCore {
     28 
     29 template<typename DataType>
     30 union ByteType {
     31     DataType value;
     32     unsigned char bytes[sizeof(DataType)];
     33 };
     34 
     35 class SVGPathByteStream {
     36     WTF_MAKE_FAST_ALLOCATED;
     37 public:
     38     static PassOwnPtr<SVGPathByteStream> create()
     39     {
     40         return adoptPtr(new SVGPathByteStream);
     41     }
     42 
     43     PassOwnPtr<SVGPathByteStream> copy() const
     44     {
     45         return adoptPtr(new SVGPathByteStream(m_data));
     46     }
     47 
     48     typedef Vector<unsigned char> Data;
     49     typedef Data::const_iterator DataIterator;
     50 
     51     DataIterator begin() const { return m_data.begin(); }
     52     DataIterator end() const { return m_data.end(); }
     53     void append(unsigned char byte) { m_data.append(byte); }
     54     void append(SVGPathByteStream* other) { m_data.appendVector(other->m_data); }
     55     void clear() { m_data.clear(); }
     56     void reserveInitialCapacity(size_t size) { m_data.reserveInitialCapacity(size); }
     57     void shrinkToFit() { m_data.shrinkToFit(); }
     58     bool isEmpty() const { return m_data.isEmpty(); }
     59     unsigned size() const { return m_data.size(); }
     60 
     61 private:
     62     SVGPathByteStream() { }
     63     SVGPathByteStream(const Data& data)
     64         : m_data(data)
     65     {
     66     }
     67 
     68     Data m_data;
     69 };
     70 
     71 } // namespace WebCore
     72 
     73 #endif // SVGPathByteStream_h
     74