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32 #include "core/animation/AnimatableDouble.h"
34 #include "core/css/CSSPrimitiveValue.h"
35 #include "core/css/CSSValuePool.h"
36 #include "platform/animation/AnimationUtilities.h"
40 PassRefPtr<CSSValue> AnimatableDouble::toCSSValue() const
42 return cssValuePool().createValue(m_number, CSSPrimitiveValue::CSS_NUMBER);
45 bool AnimatableDouble::usesDefaultInterpolationWith(const AnimatableValue* value) const
47 const AnimatableDouble* other = toAnimatableDouble(value);
48 return (m_constraint == InterpolationIsNonContinuousWithZero) && (!m_number || !other->m_number);
51 PassRefPtr<AnimatableValue> AnimatableDouble::interpolateTo(const AnimatableValue* value, double fraction) const
53 const AnimatableDouble* other = toAnimatableDouble(value);
54 ASSERT(m_constraint == other->m_constraint);
55 if ((m_constraint == InterpolationIsNonContinuousWithZero) && (!m_number || !other->m_number))
56 return defaultInterpolateTo(this, value, fraction);
57 return AnimatableDouble::create(blend(m_number, other->m_number, fraction));
60 PassRefPtr<AnimatableValue> AnimatableDouble::addWith(const AnimatableValue* value) const
62 // Optimization for adding with 0.
64 return takeConstRef(value);
65 const AnimatableDouble* other = toAnimatableDouble(value);
67 return takeConstRef(this);
69 return AnimatableDouble::create(m_number + other->m_number);
72 bool AnimatableDouble::equalTo(const AnimatableValue* value) const
74 return m_number == toAnimatableDouble(value)->m_number;
77 } // namespace WebCore