michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "SMILBoolType.h"
michael@0: #include "nsSMILValue.h"
michael@0: #include "nsDebug.h"
michael@0: #include <math.h>
michael@0: 
michael@0: namespace mozilla {
michael@0: 
michael@0: void
michael@0: SMILBoolType::Init(nsSMILValue& aValue) const
michael@0: {
michael@0:   NS_PRECONDITION(aValue.IsNull(), "Unexpected value type");
michael@0:   aValue.mU.mBool = false;
michael@0:   aValue.mType = this;
michael@0: }
michael@0: 
michael@0: void
michael@0: SMILBoolType::Destroy(nsSMILValue& aValue) const
michael@0: {
michael@0:   NS_PRECONDITION(aValue.mType == this, "Unexpected SMIL value");
michael@0:   aValue.mU.mBool = false;
michael@0:   aValue.mType = nsSMILNullType::Singleton();
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: SMILBoolType::Assign(nsSMILValue& aDest, const nsSMILValue& aSrc) const
michael@0: {
michael@0:   NS_PRECONDITION(aDest.mType == aSrc.mType, "Incompatible SMIL types");
michael@0:   NS_PRECONDITION(aDest.mType == this, "Unexpected SMIL value");
michael@0:   aDest.mU.mBool = aSrc.mU.mBool;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: bool
michael@0: SMILBoolType::IsEqual(const nsSMILValue& aLeft,
michael@0:                       const nsSMILValue& aRight) const
michael@0: {
michael@0:   NS_PRECONDITION(aLeft.mType == aRight.mType, "Incompatible SMIL types");
michael@0:   NS_PRECONDITION(aLeft.mType == this, "Unexpected type for SMIL value");
michael@0: 
michael@0:   return aLeft.mU.mBool == aRight.mU.mBool;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: SMILBoolType::Add(nsSMILValue& aDest, const nsSMILValue& aValueToAdd,
michael@0:                   uint32_t aCount) const
michael@0: {
michael@0:   NS_PRECONDITION(aValueToAdd.mType == aDest.mType,
michael@0:                   "Trying to add invalid types");
michael@0:   NS_PRECONDITION(aValueToAdd.mType == this, "Unexpected source type");
michael@0:   return NS_ERROR_FAILURE; // bool values can't be added to each other
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: SMILBoolType::ComputeDistance(const nsSMILValue& aFrom,
michael@0:                               const nsSMILValue& aTo,
michael@0:                               double& aDistance) const
michael@0: {
michael@0:   NS_PRECONDITION(aFrom.mType == aTo.mType,"Trying to compare different types");
michael@0:   NS_PRECONDITION(aFrom.mType == this, "Unexpected source type");
michael@0:   return NS_ERROR_FAILURE; // there is no concept of distance between bool values
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: SMILBoolType::Interpolate(const nsSMILValue& aStartVal,
michael@0:                           const nsSMILValue& aEndVal,
michael@0:                           double aUnitDistance,
michael@0:                           nsSMILValue& aResult) const
michael@0: {
michael@0:   NS_PRECONDITION(aStartVal.mType == aEndVal.mType,
michael@0:       "Trying to interpolate different types");
michael@0:   NS_PRECONDITION(aStartVal.mType == this,
michael@0:       "Unexpected types for interpolation");
michael@0:   NS_PRECONDITION(aResult.mType   == this, "Unexpected result type");
michael@0:   return NS_ERROR_FAILURE; // bool values do not interpolate
michael@0: }
michael@0: 
michael@0: } // namespace mozilla