/**************************************************************************\
*
* Copyright (c) 1998-2001, Microsoft Corp.  All Rights Reserved.
*
* Module Name:
*
*   GdiplusColor.h
*
* Abstract:
*
*   GDI+ Color Object
*
\**************************************************************************/

#ifndef _GDIPLUSCOLOR_H
#define _GDIPLUSCOLOR_H

//----------------------------------------------------------------------------
// Color mode
//----------------------------------------------------------------------------

enum ColorMode
{
    ColorModeARGB32 = 0,
    ColorModeARGB64 = 1
};

//----------------------------------------------------------------------------
// Color Channel flags
//----------------------------------------------------------------------------

enum ColorChannelFlags
{
    ColorChannelFlagsC = 0,
    ColorChannelFlagsM,
    ColorChannelFlagsY,
    ColorChannelFlagsK,
    ColorChannelFlagsLast
};

//----------------------------------------------------------------------------
// Color
//----------------------------------------------------------------------------

class Color
{
public:

    Color()
    {
        Argb = (ARGB)Color::Black;
    }

    // Construct an opaque Color object with
    // the specified Red, Green, Blue values.
    //
    // Color values are not premultiplied.

    Color(IN BYTE r,
          IN BYTE g,
          IN BYTE b)
    {
        Argb = MakeARGB(255, r, g, b);
    }

    Color(IN BYTE a,
          IN BYTE r,
          IN BYTE g,
          IN BYTE b)
    {
        Argb = MakeARGB(a, r, g, b);
    }

    Color(IN ARGB argb)
    {
        Argb = argb;
    }

    BYTE GetAlpha() const
    {
        return (BYTE) (Argb >> AlphaShift);
    }

    BYTE GetA() const
    {
        return GetAlpha();
    }

    BYTE GetRed() const
    {
        return (BYTE) (Argb >> RedShift);
    }

    BYTE GetR() const
    {
        return GetRed();
    }

    BYTE GetGreen() const
    {
        return (BYTE) (Argb >> GreenShift);
    }

    BYTE GetG() const
    {
        return GetGreen();
    }

    BYTE GetBlue() const
    {
        return (BYTE) (Argb >> BlueShift);
    }

    BYTE GetB() const
    {
        return GetBlue();
    }

    ARGB GetValue() const
    {
        return Argb;
    }

    VOID SetValue(IN ARGB argb)
    {
        Argb = argb;
    }

    VOID SetFromCOLORREF(IN COLORREF rgb)
    {
        Argb = MakeARGB(255, GetRValue(rgb), GetGValue(rgb), GetBValue(rgb));
    }

    COLORREF ToCOLORREF() const
    {
        return RGB(GetRed(), GetGreen(), GetBlue());
    }

public:

    // Common color constants
    
    enum
    {
        AliceBlue            = 0xFFF0F8FF,
        AntiqueWhite         = 0xFFFAEBD7,
        Aqua                 = 0xFF00FFFF,
        Aquamarine           = 0xFF7FFFD4,
        Azure                = 0xFFF0FFFF,
        Beige                = 0xFFF5F5DC,
        Bisque               = 0xFFFFE4C4,
        Black                = 0xFF000000,
        BlanchedAlmond       = 0xFFFFEBCD,
        Blue                 = 0xFF0000FF,
        BlueViolet           = 0xFF8A2BE2,
        Brown                = 0xFFA52A2A,
        BurlyWood            = 0xFFDEB887,
        CadetBlue            = 0xFF5F9EA0,
        Chartreuse           = 0xFF7FFF00,
        Chocolate            = 0xFFD2691E,
        Coral                = 0xFFFF7F50,
        CornflowerBlue       = 0xFF6495ED,
        Cornsilk             = 0xFFFFF8DC,
        Crimson              = 0xFFDC143C,
        Cyan                 = 0xFF00FFFF,
        DarkBlue             = 0xFF00008B,
        DarkCyan             = 0xFF008B8B,
        DarkGoldenrod        = 0xFFB8860B,
        DarkGray             = 0xFFA9A9A9,
        DarkGreen            = 0xFF006400,
        DarkKhaki            = 0xFFBDB76B,
        DarkMagenta          = 0xFF8B008B,
        DarkOliveGreen       = 0xFF556B2F,
        DarkOrange           = 0xFFFF8C00,
        DarkOrchid           = 0xFF9932CC,
        DarkRed              = 0xFF8B0000,
        DarkSalmon           = 0xFFE9967A,
        DarkSeaGreen         = 0xFF8FBC8B,
        DarkSlateBlue        = 0xFF483D8B,
        DarkSlateGray        = 0xFF2F4F4F,
        DarkTurquoise        = 0xFF00CED1,
        DarkViolet           = 0xFF9400D3,
        DeepPink             = 0xFFFF1493,
        DeepSkyBlue          = 0xFF00BFFF,
        DimGray              = 0xFF696969,
        DodgerBlue           = 0xFF1E90FF,
        Firebrick            = 0xFFB22222,
        FloralWhite          = 0xFFFFFAF0,
        ForestGreen          = 0xFF228B22,
        Fuchsia              = 0xFFFF00FF,
        Gainsboro            = 0xFFDCDCDC,
        GhostWhite           = 0xFFF8F8FF,
        Gold                 = 0xFFFFD700,
        Goldenrod            = 0xFFDAA520,
        Gray                 = 0xFF808080,
        Green                = 0xFF008000,
        GreenYellow          = 0xFFADFF2F,
        Honeydew             = 0xFFF0FFF0,
        HotPink              = 0xFFFF69B4,
        IndianRed            = 0xFFCD5C5C,
        Indigo               = 0xFF4B0082,
        Ivory                = 0xFFFFFFF0,
        Khaki                = 0xFFF0E68C,
        Lavender             = 0xFFE6E6FA,
        LavenderBlush        = 0xFFFFF0F5,
        LawnGreen            = 0xFF7CFC00,
        LemonChiffon         = 0xFFFFFACD,
        LightBlue            = 0xFFADD8E6,
        LightCoral           = 0xFFF08080,
        LightCyan            = 0xFFE0FFFF,
        LightGoldenrodYellow = 0xFFFAFAD2,
        LightGray            = 0xFFD3D3D3,
        LightGreen           = 0xFF90EE90,
        LightPink            = 0xFFFFB6C1,
        LightSalmon          = 0xFFFFA07A,
        LightSeaGreen        = 0xFF20B2AA,
        LightSkyBlue         = 0xFF87CEFA,
        LightSlateGray       = 0xFF778899,
        LightSteelBlue       = 0xFFB0C4DE,
        LightYellow          = 0xFFFFFFE0,
        Lime                 = 0xFF00FF00,
        LimeGreen            = 0xFF32CD32,
        Linen                = 0xFFFAF0E6,
        Magenta              = 0xFFFF00FF,
        Maroon               = 0xFF800000,
        MediumAquamarine     = 0xFF66CDAA,
        MediumBlue           = 0xFF0000CD,
        MediumOrchid         = 0xFFBA55D3,
        MediumPurple         = 0xFF9370DB,
        MediumSeaGreen       = 0xFF3CB371,
        MediumSlateBlue      = 0xFF7B68EE,
        MediumSpringGreen    = 0xFF00FA9A,
        MediumTurquoise      = 0xFF48D1CC,
        MediumVioletRed      = 0xFFC71585,
        MidnightBlue         = 0xFF191970,
        MintCream            = 0xFFF5FFFA,
        MistyRose            = 0xFFFFE4E1,
        Moccasin             = 0xFFFFE4B5,
        NavajoWhite          = 0xFFFFDEAD,
        Navy                 = 0xFF000080,
        OldLace              = 0xFFFDF5E6,
        Olive                = 0xFF808000,
        OliveDrab            = 0xFF6B8E23,
        Orange               = 0xFFFFA500,
        OrangeRed            = 0xFFFF4500,
        Orchid               = 0xFFDA70D6,
        PaleGoldenrod        = 0xFFEEE8AA,
        PaleGreen            = 0xFF98FB98,
        PaleTurquoise        = 0xFFAFEEEE,
        PaleVioletRed        = 0xFFDB7093,
        PapayaWhip           = 0xFFFFEFD5,
        PeachPuff            = 0xFFFFDAB9,
        Peru                 = 0xFFCD853F,
        Pink                 = 0xFFFFC0CB,
        Plum                 = 0xFFDDA0DD,
        PowderBlue           = 0xFFB0E0E6,
        Purple               = 0xFF800080,
        Red                  = 0xFFFF0000,
        RosyBrown            = 0xFFBC8F8F,
        RoyalBlue            = 0xFF4169E1,
        SaddleBrown          = 0xFF8B4513,
        Salmon               = 0xFFFA8072,
        SandyBrown           = 0xFFF4A460,
        SeaGreen             = 0xFF2E8B57,
        SeaShell             = 0xFFFFF5EE,
        Sienna               = 0xFFA0522D,
        Silver               = 0xFFC0C0C0,
        SkyBlue              = 0xFF87CEEB,
        SlateBlue            = 0xFF6A5ACD,
        SlateGray            = 0xFF708090,
        Snow                 = 0xFFFFFAFA,
        SpringGreen          = 0xFF00FF7F,
        SteelBlue            = 0xFF4682B4,
        Tan                  = 0xFFD2B48C,
        Teal                 = 0xFF008080,
        Thistle              = 0xFFD8BFD8,
        Tomato               = 0xFFFF6347,
        Transparent          = 0x00FFFFFF,
        Turquoise            = 0xFF40E0D0,
        Violet               = 0xFFEE82EE,
        Wheat                = 0xFFF5DEB3,
        White                = 0xFFFFFFFF,
        WhiteSmoke           = 0xFFF5F5F5,
        Yellow               = 0xFFFFFF00,
        YellowGreen          = 0xFF9ACD32
    };

    // Shift count and bit mask for A, R, G, B components
    
    enum
    {
        AlphaShift  = 24,
        RedShift    = 16,
        GreenShift  = 8,
        BlueShift   = 0
    };

    enum
    {
        AlphaMask   = 0xff000000,
        RedMask     = 0x00ff0000,
        GreenMask   = 0x0000ff00,
        BlueMask    = 0x000000ff
    };

    // Assemble A, R, G, B values into a 32-bit integer
    
    static ARGB MakeARGB(IN BYTE a,
                         IN BYTE r,
                         IN BYTE g,
                         IN BYTE b)
    {
        return (((ARGB) (b) <<  BlueShift) |
                ((ARGB) (g) << GreenShift) |
                ((ARGB) (r) <<   RedShift) |
                ((ARGB) (a) << AlphaShift));
    }

protected:

    ARGB Argb;
};

#endif

