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29 #include <wtf/Platform.h>
32 typedef struct CGColor* CGColorRef;
40 typedef struct _GdkColor GdkColor;
52 typedef unsigned RGBA32; // RGBA quadruplet
54 RGBA32 makeRGB(int r, int g, int b);
55 RGBA32 makeRGBA(int r, int g, int b, int a);
56 RGBA32 makeRGBAFromHSLA(double h, double s, double l, double a);
58 int differenceSquared(const Color&, const Color&);
62 Color() : m_color(0), m_valid(false) { }
63 Color(RGBA32 col) : m_color(col), m_valid(true) { }
64 Color(int r, int g, int b) : m_color(makeRGB(r, g, b)), m_valid(true) { }
65 Color(int r, int g, int b, int a) : m_color(makeRGBA(r, g, b, a)), m_valid(true) { }
66 explicit Color(const String&);
67 explicit Color(const char*);
70 void setNamedColor(const String&);
72 bool isValid() const { return m_valid; }
74 bool hasAlpha() const { return alpha() < 255; }
76 int red() const { return (m_color >> 16) & 0xFF; }
77 int green() const { return (m_color >> 8) & 0xFF; }
78 int blue() const { return m_color & 0xFF; }
79 int alpha() const { return (m_color >> 24) & 0xFF; }
81 RGBA32 rgb() const { return m_color; } // Preserve the alpha.
82 void setRGB(int r, int g, int b) { m_color = makeRGB(r, g, b); m_valid = true; }
83 void setRGB(RGBA32 rgb) { m_color = rgb; m_valid = true; }
84 void getRGBA(float& r, float& g, float& b, float& a) const;
85 void getRGBA(double& r, double& g, double& b, double& a) const;
90 Color blend(const Color&) const;
91 Color blendWithWhite() const;
95 operator QColor() const;
99 Color(const GdkColor&);
100 // We can't sensibly go back to GdkColor without losing the alpha value
104 Color(const wxColour&);
105 operator wxColour() const;
112 static bool parseHexColor(const String& name, RGBA32& rgb);
114 static const RGBA32 black = 0xFF000000;
115 static const RGBA32 white = 0xFFFFFFFF;
116 static const RGBA32 darkGray = 0xFF808080;
117 static const RGBA32 gray = 0xFFA0A0A0;
118 static const RGBA32 lightGray = 0xFFC0C0C0;
119 static const RGBA32 transparent = 0x00000000;
126 inline bool operator==(const Color& a, const Color& b)
128 return a.rgb() == b.rgb() && a.isValid() == b.isValid();
131 inline bool operator!=(const Color& a, const Color& b)
136 Color focusRingColor();
137 void setFocusRingColorChangeFunction(void (*)());
140 CGColorRef cgColor(const Color&);
143 } // namespace WebCore