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52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "SMILTimeValue.h"
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#include "nsMathUtils.h"
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namespace mozilla {
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const SMILTime SMILTimeValue::kUnresolvedMillis =
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std::numeric_limits<SMILTime>::max();
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//----------------------------------------------------------------------
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// SMILTimeValue methods:
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static inline int8_t Cmp(int64_t aA, int64_t aB) {
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return aA == aB ? 0 : (aA > aB ? 1 : -1);
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}
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int8_t SMILTimeValue::CompareTo(const SMILTimeValue& aOther) const {
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int8_t result;
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if (mState == STATE_DEFINITE) {
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result = (aOther.mState == STATE_DEFINITE)
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? Cmp(mMilliseconds, aOther.mMilliseconds)
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: -1;
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} else if (mState == STATE_INDEFINITE) {
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if (aOther.mState == STATE_DEFINITE)
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result = 1;
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else if (aOther.mState == STATE_INDEFINITE)
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result = 0;
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else
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result = -1;
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} else {
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result = (aOther.mState != STATE_UNRESOLVED) ? 1 : 0;
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}
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return result;
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}
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void SMILTimeValue::SetMillis(double aMillis, Rounding aRounding) {
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mState = STATE_DEFINITE;
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mMilliseconds = NS_round(aMillis);
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if (aRounding == Rounding::EnsureNonZero && !mMilliseconds && aMillis) {
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// Ensure we don't round small values to zero.
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mMilliseconds = std::copysign(1.0, aMillis);
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}
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}
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} // namespace mozilla
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