--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/platform/graphics/Color.h	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2003-6 Apple Computer, Inc.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#ifndef Color_h
+#define Color_h
+
+#include <wtf/Platform.h>
+
+#if PLATFORM(CG)
+typedef struct CGColor* CGColorRef;
+#endif
+
+#if PLATFORM(QT)
+class QColor;
+#endif
+
+namespace WebCore {
+
+class String;
+class Color;
+
+typedef unsigned RGBA32;        // RGBA quadruplet
+
+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() : m_color(0), m_valid(false) { }
+    Color(RGBA32 col) : m_color(col), m_valid(true) { }
+    Color(int r, int g, int b) : m_color(makeRGB(r, g, b)), m_valid(true) { }
+    Color(int r, int g, int b, int a) : m_color(makeRGBA(r, g, b, a)), m_valid(true) { }
+    explicit Color(const String&);
+    explicit Color(const char*);
+    
+    String name() const;
+    void setNamedColor(const String&);
+
+    bool isValid() const { return m_valid; }
+
+    bool hasAlpha() const { return alpha() < 255; }
+
+    int red() const { return (m_color >> 16) & 0xFF; }
+    int green() const { return (m_color >> 8) & 0xFF; }
+    int blue() const { return m_color & 0xFF; }
+    int alpha() const { return (m_color >> 24) & 0xFF; }
+    
+    RGBA32 rgb() const { return m_color; } // Preserve the alpha.
+    void setRGB(int r, int g, int b) { m_color = makeRGB(r, g, b); m_valid = true; }
+    void setRGB(RGBA32 rgb) { m_color = rgb; m_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;
+
+    Color blend(const Color&) const;
+    Color blendWithWhite() const;
+
+#if PLATFORM(QT)
+    Color(const QColor&);
+    operator QColor() const;
+#endif
+
+    static bool parseHexColor(const String& name, RGBA32& rgb);
+
+    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;
+
+private:
+    RGBA32 m_color;
+    bool m_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 PLATFORM(CG)
+CGColorRef cgColor(const Color&);
+#endif
+
+} // namespace WebCore
+
+#endif // Color_h