109 lines
3.5 KiB
C++
109 lines
3.5 KiB
C++
/* -*- 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 "SVGIntegerPairSMILType.h"
|
|
#include "nsSMILValue.h"
|
|
#include "nsMathUtils.h"
|
|
#include "nsDebug.h"
|
|
|
|
namespace mozilla {
|
|
|
|
void
|
|
SVGIntegerPairSMILType::Init(nsSMILValue& aValue) const
|
|
{
|
|
MOZ_ASSERT(aValue.IsNull(), "Unexpected value type");
|
|
|
|
aValue.mU.mIntPair[0] = 0;
|
|
aValue.mU.mIntPair[1] = 0;
|
|
aValue.mType = this;
|
|
}
|
|
|
|
void
|
|
SVGIntegerPairSMILType::Destroy(nsSMILValue& aValue) const
|
|
{
|
|
NS_PRECONDITION(aValue.mType == this, "Unexpected SMIL value");
|
|
aValue.mU.mIntPair[0] = 0;
|
|
aValue.mU.mIntPair[1] = 0;
|
|
aValue.mType = nsSMILNullType::Singleton();
|
|
}
|
|
|
|
nsresult
|
|
SVGIntegerPairSMILType::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.mIntPair[0] = aSrc.mU.mIntPair[0];
|
|
aDest.mU.mIntPair[1] = aSrc.mU.mIntPair[1];
|
|
return NS_OK;
|
|
}
|
|
|
|
bool
|
|
SVGIntegerPairSMILType::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.mIntPair[0] == aRight.mU.mIntPair[0] &&
|
|
aLeft.mU.mIntPair[1] == aRight.mU.mIntPair[1];
|
|
}
|
|
|
|
nsresult
|
|
SVGIntegerPairSMILType::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.mIntPair[0] += aValueToAdd.mU.mIntPair[0] * aCount;
|
|
aDest.mU.mIntPair[1] += aValueToAdd.mU.mIntPair[1] * aCount;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
SVGIntegerPairSMILType::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");
|
|
|
|
double delta[2];
|
|
delta[0] = aTo.mU.mIntPair[0] - aFrom.mU.mIntPair[0];
|
|
delta[1] = aTo.mU.mIntPair[1] - aFrom.mU.mIntPair[1];
|
|
|
|
aDistance = NS_hypot(delta[0], delta[1]);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
SVGIntegerPairSMILType::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");
|
|
|
|
double currentVal[2];
|
|
currentVal[0] = aStartVal.mU.mIntPair[0] +
|
|
(aEndVal.mU.mIntPair[0] - aStartVal.mU.mIntPair[0]) * aUnitDistance;
|
|
currentVal[1] = aStartVal.mU.mIntPair[1] +
|
|
(aEndVal.mU.mIntPair[1] - aStartVal.mU.mIntPair[1]) * aUnitDistance;
|
|
|
|
aResult.mU.mIntPair[0] = NS_lround(currentVal[0]);
|
|
aResult.mU.mIntPair[1] = NS_lround(currentVal[1]);
|
|
return NS_OK;
|
|
}
|
|
|
|
} // namespace mozilla
|