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74 lines
3.3 KiB
C++
74 lines
3.3 KiB
C++
/*
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* Copyright (C) 2008 Apple Inc. All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SMILTime_h
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#define SMILTime_h
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#if ENABLE(SVG)
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#include <algorithm>
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namespace WebCore {
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class SMILTime {
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public:
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SMILTime() : m_time(0) { }
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SMILTime(double time) : m_time(time) { }
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SMILTime(const SMILTime& o) : m_time(o.m_time) { }
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static SMILTime unresolved() { return unresolvedValue; }
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static SMILTime indefinite() { return indefiniteValue; }
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SMILTime& operator=(const SMILTime& o) { m_time = o.m_time; return *this; }
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double value() const { return m_time; }
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bool isFinite() const { return m_time < indefiniteValue; }
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bool isIndefinite() const { return m_time == indefiniteValue; }
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bool isUnresolved() const { return m_time == unresolvedValue; }
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private:
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static const double unresolvedValue;
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static const double indefiniteValue;
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double m_time;
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};
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inline bool operator==(const SMILTime& a, const SMILTime& b) { return a.isFinite() && a.value() == b.value(); }
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inline bool operator!=(const SMILTime& a, const SMILTime& b) { return !operator==(a, b); }
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inline bool operator>(const SMILTime& a, const SMILTime& b) { return a.value() > b.value(); }
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inline bool operator<(const SMILTime& a, const SMILTime& b) { return a.value() < b.value(); }
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inline bool operator>=(const SMILTime& a, const SMILTime& b) { return a.value() > b.value() || operator==(a, b); }
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inline bool operator<=(const SMILTime& a, const SMILTime& b) { return a.value() < b.value() || operator==(a, b); }
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inline SMILTime max(const SMILTime& a, const SMILTime& b) { return std::max(a.value(), b.value()); }
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inline SMILTime min(const SMILTime& a, const SMILTime& b) { return std::min(a.value(), b.value()); }
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SMILTime operator+(const SMILTime&, const SMILTime&);
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SMILTime operator-(const SMILTime&, const SMILTime&);
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// So multiplying times does not make too much sense but SMIL defines it for duration * repeatCount
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SMILTime operator*(const SMILTime&, const SMILTime&);
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}
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#endif
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#endif
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