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* Copyright (C) 2013 Google Inc. All rights reserved.
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#ifndef AnimatableColor_h
#define AnimatableColor_h
#include "core/animation/AnimatableValue.h"
#include "platform/graphics/Color.h"
namespace WebCore {
class AnimatableColorImpl {
public:
AnimatableColorImpl(float red, float green, float blue, float alpha);
AnimatableColorImpl(Color);
Color toColor() const;
AnimatableColorImpl interpolateTo(const AnimatableColorImpl&, double fraction) const;
AnimatableColorImpl addWith(const AnimatableColorImpl&) const;
bool operator==(const AnimatableColorImpl&) const;
double distanceTo(const AnimatableColorImpl&) const;
private:
float m_alpha;
float m_red;
float m_green;
float m_blue;
};
// This class handles both the regular and 'visted link' colors for a given
// property. Currently it is used for all properties, even those which do not
// support a separate 'visited link' color (eg SVG properties). This is correct
// but inefficient.
class AnimatableColor FINAL : public AnimatableValue {
public:
static PassRefPtrWillBeRawPtr<AnimatableColor> create(const AnimatableColorImpl&, const AnimatableColorImpl& visitedLinkColor);
Color color() const { return m_color.toColor(); }
Color visitedLinkColor() const { return m_visitedLinkColor.toColor(); }
virtual void trace(Visitor*) OVERRIDE { }
protected:
virtual PassRefPtrWillBeRawPtr<AnimatableValue> interpolateTo(const AnimatableValue*, double fraction) const OVERRIDE;
virtual PassRefPtrWillBeRawPtr<AnimatableValue> addWith(const AnimatableValue*) const OVERRIDE;
private:
AnimatableColor(const AnimatableColorImpl& color, const AnimatableColorImpl& visitedLinkColor)
: m_color(color)
, m_visitedLinkColor(visitedLinkColor)
{
}
virtual AnimatableType type() const OVERRIDE { return TypeColor; }
virtual bool equalTo(const AnimatableValue*) const OVERRIDE;
virtual double distanceTo(const AnimatableValue*) const OVERRIDE;
const AnimatableColorImpl m_color;
const AnimatableColorImpl m_visitedLinkColor;
};
DEFINE_ANIMATABLE_VALUE_TYPE_CASTS(AnimatableColor, isColor());
} // namespace WebCore
#endif // AnimatableColor_h