зеркало из https://github.com/mozilla/gecko-dev.git
85 строки
2.7 KiB
C++
85 строки
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* 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 "SMILEnumType.h"
|
|
#include "nsSMILValue.h"
|
|
#include "nsDebug.h"
|
|
#include <math.h>
|
|
|
|
namespace mozilla {
|
|
|
|
/*static*/ SMILEnumType SMILEnumType::sSingleton;
|
|
|
|
void
|
|
SMILEnumType::Init(nsSMILValue& aValue) const
|
|
{
|
|
NS_PRECONDITION(aValue.IsNull(), "Unexpected value type");
|
|
aValue.mU.mUint = 0;
|
|
aValue.mType = this;
|
|
}
|
|
|
|
void
|
|
SMILEnumType::Destroy(nsSMILValue& aValue) const
|
|
{
|
|
NS_PRECONDITION(aValue.mType == this, "Unexpected SMIL value");
|
|
aValue.mU.mUint = 0;
|
|
aValue.mType = &nsSMILNullType::sSingleton;
|
|
}
|
|
|
|
nsresult
|
|
SMILEnumType::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.mUint = aSrc.mU.mUint;
|
|
return NS_OK;
|
|
}
|
|
|
|
bool
|
|
SMILEnumType::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.mUint == aRight.mU.mUint;
|
|
}
|
|
|
|
nsresult
|
|
SMILEnumType::Add(nsSMILValue& aDest, const nsSMILValue& aValueToAdd,
|
|
PRUint32 aCount) const
|
|
{
|
|
NS_PRECONDITION(aValueToAdd.mType == aDest.mType,
|
|
"Trying to add invalid types");
|
|
NS_PRECONDITION(aValueToAdd.mType == this, "Unexpected source type");
|
|
return NS_ERROR_FAILURE; // enum values can't be added to each other
|
|
}
|
|
|
|
nsresult
|
|
SMILEnumType::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");
|
|
return NS_ERROR_FAILURE; // there is no concept of distance between enum values
|
|
}
|
|
|
|
nsresult
|
|
SMILEnumType::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");
|
|
return NS_ERROR_FAILURE; // enum values do not interpolate
|
|
}
|
|
|
|
} // namespace mozilla
|