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      1 /*
      2  * Copyright (C) 2013 Samsung Electronics. 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 are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef SVGNumber_h
     32 #define SVGNumber_h
     33 
     34 #include "core/svg/properties/SVGPropertyTraits.h"
     35 
     36 namespace WebCore {
     37 
     38 class SVGNumber {
     39     WTF_MAKE_FAST_ALLOCATED;
     40 public:
     41     SVGNumber()
     42         : m_value(0)
     43     {
     44     }
     45 
     46     SVGNumber(float value)
     47         : m_value(value)
     48     {
     49     }
     50 
     51     SVGNumber& operator+=(const SVGNumber& rhs)
     52     {
     53         m_value += rhs.value();
     54         return *this;
     55     }
     56 
     57     float value() const { return m_value; }
     58     float& valueRef() { return m_value; }
     59     String valueAsString() const { return String::number(m_value); }
     60     void setValue(float value) { m_value = value; }
     61 
     62 private:
     63     float m_value;
     64 };
     65 
     66 COMPILE_ASSERT(sizeof(SVGNumber) == sizeof(float), SVGNumber_same_size_as_float);
     67 
     68 template<>
     69 struct SVGPropertyTraits<SVGNumber> {
     70     static SVGNumber initialValue() { return SVGNumber(); }
     71     static String toString(const SVGNumber& type) { return type.valueAsString(); }
     72 };
     73 
     74 } // namespace WebCore
     75 
     76 #endif // SVGNumber_h
     77