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* Copyright (C) 2013 Google Inc. All rights reserved.
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#ifndef AnimatableDouble_h
#define AnimatableDouble_h
#include "core/animation/AnimatableValue.h"
#include "core/css/CSSValue.h"
namespace WebCore {
class AnimatableDouble FINAL : public AnimatableValue {
public:
virtual ~AnimatableDouble() { }
enum Constraint {
Unconstrained,
InterpolationIsNonContinuousWithZero,
};
static PassRefPtrWillBeRawPtr<AnimatableDouble> create(double number, Constraint constraint = Unconstrained)
{
return adoptRefWillBeNoop(new AnimatableDouble(number, constraint));
}
PassRefPtrWillBeRawPtr<CSSValue> toCSSValue() const;
double toDouble() const { return m_number; }
virtual void trace(Visitor*) OVERRIDE { }
protected:
virtual PassRefPtrWillBeRawPtr<AnimatableValue> interpolateTo(const AnimatableValue*, double fraction) const OVERRIDE;
virtual PassRefPtrWillBeRawPtr<AnimatableValue> addWith(const AnimatableValue*) const OVERRIDE;
virtual bool usesDefaultInterpolationWith(const AnimatableValue*) const OVERRIDE;
private:
AnimatableDouble(double number, Constraint constraint)
: m_number(number)
, m_constraint(constraint)
{
}
virtual AnimatableType type() const OVERRIDE { return TypeDouble; }
virtual bool equalTo(const AnimatableValue*) const OVERRIDE;
virtual double distanceTo(const AnimatableValue*) const OVERRIDE;
double m_number;
Constraint m_constraint;
};
DEFINE_ANIMATABLE_VALUE_TYPE_CASTS(AnimatableDouble, isDouble());
} // namespace WebCore
#endif // AnimatableDouble_h