1 /* 2 * Copyright (C) 2008 Apple Inc. 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 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef SMILTime_h 27 #define SMILTime_h 28 29 #if ENABLE(SVG) 30 31 #include <algorithm> 32 33 namespace WebCore { 34 35 class SMILTime { 36 public: 37 SMILTime() : m_time(0) { } 38 SMILTime(double time) : m_time(time) { } 39 SMILTime(const SMILTime& o) : m_time(o.m_time) { } 40 41 static SMILTime unresolved() { return unresolvedValue; } 42 static SMILTime indefinite() { return indefiniteValue; } 43 44 SMILTime& operator=(const SMILTime& o) { m_time = o.m_time; return *this; } 45 double value() const { return m_time; } 46 47 bool isFinite() const { return m_time < indefiniteValue; } 48 bool isIndefinite() const { return m_time == indefiniteValue; } 49 bool isUnresolved() const { return m_time == unresolvedValue; } 50 51 private: 52 static const double unresolvedValue; 53 static const double indefiniteValue; 54 55 double m_time; 56 }; 57 58 inline bool operator==(const SMILTime& a, const SMILTime& b) { return a.isFinite() && a.value() == b.value(); } 59 inline bool operator!(const SMILTime& a) { return !a.isFinite() || !a.value(); } 60 inline bool operator!=(const SMILTime& a, const SMILTime& b) { return !operator==(a, b); } 61 inline bool operator>(const SMILTime& a, const SMILTime& b) { return a.value() > b.value(); } 62 inline bool operator<(const SMILTime& a, const SMILTime& b) { return a.value() < b.value(); } 63 inline bool operator>=(const SMILTime& a, const SMILTime& b) { return a.value() > b.value() || operator==(a, b); } 64 inline bool operator<=(const SMILTime& a, const SMILTime& b) { return a.value() < b.value() || operator==(a, b); } 65 66 SMILTime operator+(const SMILTime&, const SMILTime&); 67 SMILTime operator-(const SMILTime&, const SMILTime&); 68 // So multiplying times does not make too much sense but SMIL defines it for duration * repeatCount 69 SMILTime operator*(const SMILTime&, const SMILTime&); 70 71 } 72 73 #endif // ENABLE(SVG) 74 #endif // SMILTime_h 75
