/*
* Copyright (C) 2013 Google Inc. All rights reserved.
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* modification, are permitted provided that the following conditions are
* met:
*
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* notice, this list of conditions and the following disclaimer.
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* in the documentation and/or other materials provided with the
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*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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*/
#ifndef StyleColor_h
#define StyleColor_h
#include "platform/graphics/Color.h"
namespace WebCore {
class StyleColor {
public:
StyleColor(Color color) : m_color(color), m_currentColor(false) { }
static StyleColor currentColor() { return StyleColor(); }
bool isCurrentColor() const { return m_currentColor; }
Color color() const { ASSERT(!isCurrentColor()); return m_color; }
Color resolve(Color currentColor) const { return m_currentColor ? currentColor : m_color; }
private:
StyleColor() : m_currentColor(true) { }
Color m_color;
bool m_currentColor;
};
inline bool operator==(const StyleColor& a, const StyleColor& b)
{
if (a.isCurrentColor() || b.isCurrentColor())
return a.isCurrentColor() && b.isCurrentColor();
return a.color() == b.color();
}
inline bool operator!=(const StyleColor& a, const StyleColor& b)
{
return !(a == b);
}
} // namespace WebCore
#endif // StyleColor_h