зеркало из https://github.com/mozilla/gecko-dev.git
102 строки
3.4 KiB
C++
102 строки
3.4 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 ***** */
|
|
|
|
#ifndef NS_SMILVALUE_H_
|
|
#define NS_SMILVALUE_H_
|
|
|
|
#include "nsISMILType.h"
|
|
#include "nsSMILNullType.h"
|
|
|
|
class nsSMILValue
|
|
{
|
|
public:
|
|
nsSMILValue() : mU(), mType(&nsSMILNullType::sSingleton) { }
|
|
explicit nsSMILValue(const nsISMILType* aType);
|
|
nsSMILValue(const nsSMILValue& aVal);
|
|
|
|
~nsSMILValue()
|
|
{
|
|
mType->Destroy(*this);
|
|
}
|
|
|
|
const nsSMILValue& operator=(const nsSMILValue& aVal);
|
|
|
|
// Equality operators. These are allowed to be conservative (return PR_FALSE
|
|
// more than you'd expect) - see comment above nsISMILType::IsEqual.
|
|
PRBool operator==(const nsSMILValue& aVal) const;
|
|
PRBool operator!=(const nsSMILValue& aVal) const {
|
|
return !(*this == aVal);
|
|
}
|
|
|
|
PRBool IsNull() const
|
|
{
|
|
return (mType == &nsSMILNullType::sSingleton);
|
|
}
|
|
|
|
// Swaps the member data (mU & mPtr) of |this| with |aOther|
|
|
void Swap(nsSMILValue& aOther);
|
|
|
|
nsresult Add(const nsSMILValue& aValueToAdd, PRUint32 aCount = 1);
|
|
nsresult SandwichAdd(const nsSMILValue& aValueToAdd);
|
|
nsresult ComputeDistance(const nsSMILValue& aTo, double& aDistance) const;
|
|
nsresult Interpolate(const nsSMILValue& aEndVal,
|
|
double aUnitDistance,
|
|
nsSMILValue& aResult) const;
|
|
|
|
union {
|
|
PRBool mBool;
|
|
PRUint64 mUint;
|
|
PRInt64 mInt;
|
|
double mDouble;
|
|
struct {
|
|
float mAngle;
|
|
PRUint16 mUnit;
|
|
PRUint16 mOrientType;
|
|
} mOrient;
|
|
void* mPtr;
|
|
} mU;
|
|
const nsISMILType* mType;
|
|
|
|
protected:
|
|
void InitAndCheckPostcondition(const nsISMILType* aNewType);
|
|
void DestroyAndCheckPostcondition();
|
|
void DestroyAndReinit(const nsISMILType* aNewType);
|
|
};
|
|
|
|
#endif // NS_SMILVALUE_H_
|