#ifndef COLOR_H_
#define COLOR_H_
#if __APPLE__
typedef struct CGColor* CGColorRef;
#endif
namespace WebCore {
class String;
class Color;
typedef unsigned RGBA32;
RGBA32 makeRGB(int r, int g, int b);
RGBA32 makeRGBA(int r, int g, int b, int a);
RGBA32 makeRGBAFromHSLA(double h, double s, double l, double a);
int differenceSquared(const Color&, const Color&);
class Color {
public:
Color() : color(0), valid(false) { }
Color(RGBA32 col) : color(col), valid(true) { }
Color(int r, int g, int b) : color(makeRGB(r, g, b)), valid(true) { }
Color(int r, int g, int b, int a) : color(makeRGBA(r, g, b, a)), valid(true) { }
explicit Color(const String&);
explicit Color(const char*);
String name() const;
void setNamedColor(const String&);
bool isValid() const { return valid; }
bool hasAlpha() const { return alpha() < 255; }
int red() const { return (color >> 16) & 0xFF; }
int green() const { return (color >> 8) & 0xFF; }
int blue() const { return color & 0xFF; }
int alpha() const { return (color >> 24) & 0xFF; }
RGBA32 rgb() const { return color; } void setRgb(int r, int g, int b) { color = makeRGB(r, g, b); valid = true; }
void setRgb(RGBA32 rgb) { color = rgb; valid = true; }
void getRGBA(float& r, float& g, float& b, float& a) const;
void getRGBA(double& r, double& g, double& b, double& a) const;
Color light() const;
Color dark() const;
bool isDark() const;
Color blendWithWhite() const;
static const RGBA32 black = 0xFF000000;
static const RGBA32 white = 0xFFFFFFFF;
static const RGBA32 darkGray = 0xFF808080;
static const RGBA32 gray = 0xFFA0A0A0;
static const RGBA32 lightGray = 0xFFC0C0C0;
static const RGBA32 transparent = 0x00000000;
static const RGBA32 tap = 0x4D1A1A1A;
private:
RGBA32 color;
bool valid : 1;
};
inline bool operator==(const Color &a, const Color &b)
{
return a.rgb() == b.rgb() && a.isValid() == b.isValid();
}
inline bool operator!=(const Color &a, const Color &b)
{
return !(a == b);
}
Color focusRingColor();
void setFocusRingColorChangeFunction(void (*)());
#if __APPLE__
CGColorRef cgColor(const Color&);
#endif
}
#endif