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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /dom/smil/nsSMILFloatType.cpp | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/smil/nsSMILFloatType.cpp')
-rw-r--r-- | dom/smil/nsSMILFloatType.cpp | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/dom/smil/nsSMILFloatType.cpp b/dom/smil/nsSMILFloatType.cpp new file mode 100644 index 000000000..d3e298043 --- /dev/null +++ b/dom/smil/nsSMILFloatType.cpp @@ -0,0 +1,92 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "nsSMILFloatType.h" +#include "nsSMILValue.h" +#include "nsDebug.h" +#include <math.h> + +void +nsSMILFloatType::Init(nsSMILValue& aValue) const +{ + NS_PRECONDITION(aValue.IsNull(), "Unexpected value type"); + aValue.mU.mDouble = 0.0; + aValue.mType = this; +} + +void +nsSMILFloatType::Destroy(nsSMILValue& aValue) const +{ + NS_PRECONDITION(aValue.mType == this, "Unexpected SMIL value"); + aValue.mU.mDouble = 0.0; + aValue.mType = nsSMILNullType::Singleton(); +} + +nsresult +nsSMILFloatType::Assign(nsSMILValue& aDest, const nsSMILValue& aSrc) const +{ + NS_PRECONDITION(aDest.mType == aSrc.mType, "Incompatible SMIL types"); + NS_PRECONDITION(aDest.mType == this, "Unexpected SMIL value"); + aDest.mU.mDouble = aSrc.mU.mDouble; + return NS_OK; +} + +bool +nsSMILFloatType::IsEqual(const nsSMILValue& aLeft, + const nsSMILValue& aRight) const +{ + NS_PRECONDITION(aLeft.mType == aRight.mType, "Incompatible SMIL types"); + NS_PRECONDITION(aLeft.mType == this, "Unexpected type for SMIL value"); + + return aLeft.mU.mDouble == aRight.mU.mDouble; +} + +nsresult +nsSMILFloatType::Add(nsSMILValue& aDest, const nsSMILValue& aValueToAdd, + uint32_t aCount) const +{ + NS_PRECONDITION(aValueToAdd.mType == aDest.mType, + "Trying to add invalid types"); + NS_PRECONDITION(aValueToAdd.mType == this, "Unexpected source type"); + aDest.mU.mDouble += aValueToAdd.mU.mDouble * aCount; + return NS_OK; +} + +nsresult +nsSMILFloatType::ComputeDistance(const nsSMILValue& aFrom, + const nsSMILValue& aTo, + double& aDistance) const +{ + NS_PRECONDITION(aFrom.mType == aTo.mType,"Trying to compare different types"); + NS_PRECONDITION(aFrom.mType == this, "Unexpected source type"); + + const double &from = aFrom.mU.mDouble; + const double &to = aTo.mU.mDouble; + + aDistance = fabs(to - from); + + return NS_OK; +} + +nsresult +nsSMILFloatType::Interpolate(const nsSMILValue& aStartVal, + const nsSMILValue& aEndVal, + double aUnitDistance, + nsSMILValue& aResult) const +{ + NS_PRECONDITION(aStartVal.mType == aEndVal.mType, + "Trying to interpolate different types"); + NS_PRECONDITION(aStartVal.mType == this, + "Unexpected types for interpolation"); + NS_PRECONDITION(aResult.mType == this, "Unexpected result type"); + + const double &startVal = aStartVal.mU.mDouble; + const double &endVal = aEndVal.mU.mDouble; + + aResult.mU.mDouble = (startVal + (endVal - startVal) * aUnitDistance); + + return NS_OK; +} |