gecko-dev/content/smil/nsSMILFloatType.h

49 строки
1.8 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/. */
#ifndef NS_SMILFLOATTYPE_H_
#define NS_SMILFLOATTYPE_H_
#include "mozilla/Attributes.h"
#include "nsISMILType.h"
class nsSMILFloatType : public nsISMILType
{
public:
// Singleton for nsSMILValue objects to hold onto.
static nsSMILFloatType*
Singleton()
{
static nsSMILFloatType sSingleton;
return &sSingleton;
}
protected:
// nsISMILType Methods
// -------------------
virtual void Init(nsSMILValue& aValue) const MOZ_OVERRIDE;
virtual void Destroy(nsSMILValue&) const;
virtual nsresult Assign(nsSMILValue& aDest, const nsSMILValue& aSrc) const MOZ_OVERRIDE;
virtual bool IsEqual(const nsSMILValue& aLeft,
const nsSMILValue& aRight) const MOZ_OVERRIDE;
virtual nsresult Add(nsSMILValue& aDest, const nsSMILValue& aValueToAdd,
uint32_t aCount) const MOZ_OVERRIDE;
virtual nsresult ComputeDistance(const nsSMILValue& aFrom,
const nsSMILValue& aTo,
double& aDistance) const MOZ_OVERRIDE;
virtual nsresult Interpolate(const nsSMILValue& aStartVal,
const nsSMILValue& aEndVal,
double aUnitDistance,
nsSMILValue& aResult) const MOZ_OVERRIDE;
private:
// Private constructor & destructor: prevent instances beyond my singleton,
// and prevent others from deleting my singleton.
nsSMILFloatType() {}
~nsSMILFloatType() {}
};
#endif // NS_SMILFLOATTYPE_H_