Source/core/animation/AnimatableLengthBox.h

/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
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#ifndef AnimatableLengthBox_h
#define AnimatableLengthBox_h

#include "core/animation/AnimatableValue.h"

namespace WebCore {

class AnimatableLengthBox : public AnimatableValue {
public:
    virtual ~AnimatableLengthBox() { }
    static PassRefPtr<AnimatableLengthBox> create(PassRefPtr<AnimatableValue> left, PassRefPtr<AnimatableValue> right, PassRefPtr<AnimatableValue> top, PassRefPtr<AnimatableValue> bottom)
    {
        return adoptRef(new AnimatableLengthBox(left, right, top, bottom));
    }
    const AnimatableValue* left() const { return m_left.get(); }
    const AnimatableValue* right() const { return m_right.get(); }
    const AnimatableValue* top() const { return m_top.get(); }
    const AnimatableValue* bottom() const { return m_bottom.get(); }

protected:
    virtual PassRefPtr<AnimatableValue> interpolateTo(const AnimatableValue*, double fraction) const OVERRIDE;
    virtual PassRefPtr<AnimatableValue> addWith(const AnimatableValue*) const OVERRIDE;

private:
    AnimatableLengthBox(PassRefPtr<AnimatableValue> left, PassRefPtr<AnimatableValue> right, PassRefPtr<AnimatableValue> top, PassRefPtr<AnimatableValue> bottom)
        : m_left(left)
        , m_right(right)
        , m_top(top)
        , m_bottom(bottom)
    {
    }
    virtual AnimatableType type() const OVERRIDE { return TypeLengthBox; }
    virtual bool equalTo(const AnimatableValue*) const OVERRIDE;

    RefPtr<AnimatableValue> m_left;
    RefPtr<AnimatableValue> m_right;
    RefPtr<AnimatableValue> m_top;
    RefPtr<AnimatableValue> m_bottom;
};

DEFINE_ANIMATABLE_VALUE_TYPE_CASTS(AnimatableLengthBox, isLengthBox());

} // namespace WebCore

#endif // AnimatableLengthBox_h