| /* |
| * 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/FastAllocBase.h> |
| |
| #if PLATFORM(CG) |
| typedef struct CGColor* CGColorRef; |
| #endif |
| |
| #if PLATFORM(QT) |
| #include <qglobal.h> |
| QT_BEGIN_NAMESPACE |
| class QColor; |
| QT_END_NAMESPACE |
| #endif |
| |
| #if PLATFORM(GTK) |
| typedef struct _GdkColor GdkColor; |
| #endif |
| |
| #if PLATFORM(WX) |
| class wxColour; |
| #endif |
| |
| #if PLATFORM(HAIKU) |
| struct rgb_color; |
| #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 colorWithOverrideAlpha(RGBA32 color, float overrideAlpha); |
| RGBA32 makeRGBA32FromFloats(float r, float g, float b, float a); |
| RGBA32 makeRGBAFromHSLA(double h, double s, double l, double a); |
| RGBA32 makeRGBAFromCMYKA(float c, float m, float y, float k, float a); |
| |
| int differenceSquared(const Color&, const Color&); |
| |
| class Color : public FastAllocBase { |
| 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) { } |
| // Color is currently limited to 32bit RGBA, perhaps some day we'll support better colors |
| Color(float r, float g, float b, float a) : m_color(makeRGBA32FromFloats(r, g, b, a)), m_valid(true) { } |
| // Creates a new color from the specific CMYK and alpha values. |
| Color(float c, float m, float y, float k, float a) : m_color(makeRGBAFromCMYKA(c, m, y, k, 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; |
| void getHSL(double& h, double& s, double& l) 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 |
| |
| #if PLATFORM(GTK) |
| Color(const GdkColor&); |
| // We can't sensibly go back to GdkColor without losing the alpha value |
| #endif |
| |
| #if PLATFORM(WX) |
| Color(const wxColour&); |
| operator wxColour() const; |
| #endif |
| |
| #if PLATFORM(CG) |
| Color(CGColorRef); |
| #endif |
| |
| #if PLATFORM(HAIKU) |
| Color(const rgb_color&); |
| operator rgb_color() 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; |
| }; |
| |
| 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 colorFromPremultipliedARGB(unsigned); |
| unsigned premultipliedARGBFromColor(const Color&); |
| |
| #if PLATFORM(CG) |
| CGColorRef createCGColor(const Color&); |
| #endif |
| |
| } // namespace WebCore |
| |
| #endif // Color_h |