mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
127 lines
4.4 KiB
C++
127 lines
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is the Mozilla SMIL module.
|
|
*
|
|
* The Initial Developer of the Original Code is Brian Birtles.
|
|
* Portions created by the Initial Developer are Copyright (C) 2006
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Robert O'Callahan <roc+moz@cs.cmu.edu>
|
|
* Brian Birtles <birtles@gmail.com>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of the GNU General Public License Version 2 or later (the "GPL"),
|
|
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#include "nsSMILFloatType.h"
|
|
#include "nsSMILValue.h"
|
|
#include "nsDebug.h"
|
|
#include <math.h>
|
|
|
|
/*static*/ nsSMILFloatType nsSMILFloatType::sSingleton;
|
|
|
|
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::sSingleton;
|
|
}
|
|
|
|
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,
|
|
PRUint32 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;
|
|
}
|