Color.hpp

/*
Copyright (C) 2010-2012,2019,2020,2025,2026 Rodrigo Jose Hernandez Cordoba
 
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
 
http://www.apache.org/licenses/LICENSE-2.0
 
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#ifndef AEONGUI_COLOR_H
#define AEONGUI_COLOR_H
#include <string>
#include <cstdint>
#include <regex>
#include <variant>
#include <vector>
#include "aeongui/Platform.hpp"
namespace AeonGUI
{
    enum CSS3Color : uint32_t
    {
        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,
        darkgrey = 0xffa9a9a9,
        darkkhaki = 0xffbdb76b,
        darkmagenta = 0xff8b008b,
        darkolivegreen = 0xff556b2f,
        darkorange = 0xffff8c00,
        darkorchid = 0xff9932cc,
        darkred = 0xff8b0000,
        darksalmon = 0xffe9967a,
        darkseagreen = 0xff8fbc8f,
        darkslateblue = 0xff483d8b,
        darkslategray = 0xff2f4f4f,
        darkslategrey = 0xff2f4f4f,
        darkturquoise = 0xff00ced1,
        darkviolet = 0xff9400d3,
        deeppink = 0xffff1493,
        deepskyblue = 0xff00bfff,
        dimgray = 0xff696969,
        dimgrey = 0xff696969,
        dodgerblue = 0xff1e90ff,
        firebrick = 0xffb22222,
        floralwhite = 0xfffffaf0,
        forestgreen = 0xff228b22,
        fuchsia = 0xffff00ff,
        gainsboro = 0xffdcdcdc,
        ghostwhite = 0xfff8f8ff,
        gold = 0xffffd700,
        goldenrod = 0xffdaa520,
        gray = 0xff808080,
        grey = 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,
        lightgrey = 0xffd3d3d3,
        lightpink = 0xffffb6c1,
        lightsalmon = 0xffffa07a,
        lightseagreen = 0xff20b2aa,
        lightskyblue = 0xff87cefa,
        lightslategray = 0xff778899,
        lightslategrey = 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,
        slategrey = 0xff708090,
        snow = 0xfffffafa,
        springgreen = 0xff00ff7f,
        steelblue = 0xff4682b4,
        tan = 0xffd2b48c,
        teal = 0xff008080,
        thistle = 0xffd8bfd8,
        tomato = 0xffff6347,
        transparent = 0x00000000, 
        turquoise = 0xff40e0d0,
        violet = 0xffee82ee,
        wheat = 0xfff5deb3,
        white = 0xffffffff,
        whitesmoke = 0xfff5f5f5,
        yellow = 0xffffff00,
        yellowgreen = 0xff9acd32
    };
    union Color
    {
        DLL static bool IsColor ( const std::string& value, uint32_t* color_value = nullptr );
        DLL static const std::regex ColorRegex;
        DLL Color();
        DLL explicit Color ( uint32_t value );

        DLL Color ( const std::string& value );
        DLL Color ( uint8_t A, uint8_t R, uint8_t G, uint8_t B );

        DLL void Blend ( Color src );

        DLL double R() const;
        DLL double G() const;
        DLL double B() const;
        DLL double A() const;
        DLL std::string ToString() const;
        uint32_t bgra; 
        struct
        {
#if 0
            uint8_t r;
            uint8_t g;
            uint8_t b;
            uint8_t a;
#else
            uint8_t b; 
            uint8_t g; 
            uint8_t r; 
            uint8_t a; 
#endif
        };
    };

    using none = std::monostate;

    struct GradientStop
    {
        double offset;  
        Color color;    
    };

    struct LinearGradient
    {
        double x1{0}; 
        double y1{0}; 
        double x2{1}; 
        double y2{0}; 
        std::vector<GradientStop> stops;    
        bool objectBoundingBox{true};       
    };

    using ColorAttr = std::variant<none, Color, LinearGradient>;
}
#endif