package com.greef.ui;

import java.util.Enumeration;
import java.util.Hashtable;
import java.lang.reflect.Field;
import java.awt.Color;

/**
 * HTML color names. It's intended use is for parsing a name and return the
 * corresponding color or return a name for a given color.
 * @author Adrian Ber
 */
public class HTMLColors {

    /** Don't instantiate this, use only the static methods */
    private HTMLColors() {
    }

    /** map between color names and colors;
     * tough there are fields for every color we use a map because is a faster
     * way to get the color
     */
    private static Hashtable name2color = new Hashtable();
    /** map between colors and color names;
     * tough there are fields for every color we use a map because is a faster
     * way to get the color
     */
    private static Hashtable color2name = new Hashtable();

    /** Initialiase colors map */
    private static void initColorsMap() {
        Field[] f = HTMLColors.class.getFields();
        for (int i = 0; i < f.length; i++) {
            if (f[i].getType().isAssignableFrom(Color.class)) {
                addColor(f[i].getName());
            }
        }
    }

    /** Used to initialize the map */
    private static void addColor(String colorName, Color color) {
        name2color.put(colorName, color);
        color2name.put(color, colorName);
    }

    /** Used to initialize the map */
    private static void addColor(String colorName) {
        addColor(colorName, getColorFromField(colorName));
    }

    /** Used to initialize the map */
    private static void addColor(String colorName, int colorRGB) {
        addColor(colorName, new Color(colorRGB));
    }

    /** Returns a color with the specified case-insensitive name. */
    private static Color getColorFromField(String name) {
        try {
            Field colorField = HTMLColors.class.getField(name.toLowerCase());
            return (Color) colorField.get(HTMLColors.class);
        }
        catch (NoSuchFieldException exc) {
        }
        catch (SecurityException exc) {
        }
        catch (IllegalAccessException exc) {
        }
        catch (IllegalArgumentException exc) {
        }
        return null;
    }

    /** Returns a color with the specified case-insensitive name.*/
    public static String getName(Color color) {
        return (String) color2name.get(color);
    }

    /** Returns a color with the specified case-insensitive name.*/
    public static Color getColor(String name) {
        return (Color) name2color.get(name.toLowerCase());
    }

    /** Returns a collection of all color names */
    public static Enumeration colors() {
        return name2color.keys();
    }

    /** Transform a color string into a color object.
     *  @param s the color string
     *  @return the color object
     */
    public static Color decodeColor(String s) {
        if (s == null)
            return null;
        Color c;
        try {
            c = Color.decode(s);
        }
        catch (NumberFormatException exc) {
            c = HTMLColors.getColor(s);
        }
        return c;
    }

    public static final Color aliceblue = new Color(0xf0f8ff);
    public static final Color antiquewhite = new Color(0xfaebd7);
    public static final Color aqua = new Color(0x00ffff);
    public static final Color aquamarine = new Color(0x7fffd4);
    public static final Color azure = new Color(0xf0ffff);
    public static final Color beige = new Color(0xf5f5dc);
    public static final Color bisque = new Color(0xffe4c4);
    public static final Color black = new Color(0x000000);
    public static final Color blanchedalmond = new Color(0xffebcd);
    public static final Color blue = new Color(0x0000ff);
    public static final Color blueviolet = new Color(0x8a2be2);
    public static final Color brown = new Color(0xa52a2a);
    public static final Color burlywood = new Color(0xdeb887);
    public static final Color cadetblue = new Color(0x5f9ea0);
    public static final Color chartreuse = new Color(0x7fff00);
    public static final Color chocolate = new Color(0xd2691e);
    public static final Color coral = new Color(0xff7f50);
    public static final Color cornflowerblue = new Color(0x6495ed);
    public static final Color cornsilk = new Color(0xfff8dc);
    public static final Color crimson = new Color(0xdc143c);
    public static final Color cyan = new Color(0x00ffff);
    public static final Color darkblue = new Color(0x00008b);
    public static final Color darkcyan = new Color(0x008b8b);
    public static final Color darkgoldenrod = new Color(0xb8860b);
    public static final Color darkgray = new Color(0xa9a9a9);
    public static final Color darkgreen = new Color(0x006400);
    public static final Color darkkhaki = new Color(0xbdb76b);
    public static final Color darkmagenta = new Color(0x8b008b);
    public static final Color darkolivegreen = new Color(0x556b2f);
    public static final Color darkorange = new Color(0xff8c00);
    public static final Color darkorchid = new Color(0x9932cc);
    public static final Color darkred = new Color(0x8b0000);
    public static final Color darksalmon = new Color(0xe9967a);
    public static final Color darkseagreen = new Color(0x8fbc8f);
    public static final Color darkslateblue = new Color(0x483d8b);
    public static final Color darkslategray = new Color(0x2f4f4f);
    public static final Color darkturquoise = new Color(0x00ced1);
    public static final Color darkviolet = new Color(0x9400d3);
    public static final Color deeppink = new Color(0xff1493);
    public static final Color deepskyblue = new Color(0x00bfff);
    public static final Color dimgray = new Color(0x696969);
    public static final Color dodgerblue = new Color(0x1e90ff);
    public static final Color firebrick = new Color(0xb22222);
    public static final Color floralwhite = new Color(0xfffaf0);
    public static final Color forestgreen = new Color(0x228b22);
    public static final Color fuchsia = new Color(0xff00ff);
    public static final Color gainsboro = new Color(0xdcdcdc);
    public static final Color ghostwhite = new Color(0xf8f8ff);
    public static final Color gold = new Color(0xffd700);
    public static final Color goldenrod = new Color(0xdaa520);
    public static final Color gray = new Color(0x808080);
    public static final Color green = new Color(0x008000);
    public static final Color greenyellow = new Color(0xadff2f);
    public static final Color honeydew = new Color(0xf0fff0);
    public static final Color hotpink = new Color(0xff69b4);
    public static final Color indianred = new Color(0xcd5c5c);
    public static final Color indigo = new Color(0x4b0082);
    public static final Color ivory = new Color(0xfffff0);
    public static final Color khaki = new Color(0xf0e68c);
    public static final Color lavender = new Color(0xe6e6fa);
    public static final Color lavenderblush = new Color(0xfff0f5);
    public static final Color lawngreen = new Color(0x7cfc00);
    public static final Color lemonchiffon = new Color(0xfffacd);
    public static final Color lightblue = new Color(0xadd8e6);
    public static final Color lightcoral = new Color(0xf08080);
    public static final Color lightcyan = new Color(0xe0ffff);
    public static final Color lightgoldenrodyellow = new Color(0xfafad2);
    public static final Color lightgreen = new Color(0x90ee90);
    public static final Color lightgrey = new Color(0xd3d3d3);
    public static final Color lightpink = new Color(0xffb6c1);
    public static final Color lightsalmon = new Color(0xffa07a);
    public static final Color lightseagreen = new Color(0x20b2aa);
    public static final Color lightskyblue = new Color(0x87cefa);
    public static final Color lightslategray = new Color(0x778899);
    public static final Color lightsteelblue = new Color(0xb0c4de);
    public static final Color lightyellow = new Color(0xffffe0);
    public static final Color lime = new Color(0x00ff00);
    public static final Color limegreen = new Color(0x32cd32);
    public static final Color linen = new Color(0xfaf0e6);
    public static final Color magenta = new Color(0xff00ff);
    public static final Color maroon = new Color(0x800000);
    public static final Color mediumaquamarine = new Color(0x66cdaa);
    public static final Color mediumblue = new Color(0x0000cd);
    public static final Color mediumorchid = new Color(0xba55d3);
    public static final Color mediumpurple = new Color(0x9370db);
    public static final Color mediumseagreen = new Color(0x3cb371);
    public static final Color mediumslateblue = new Color(0x7b68ee);
    public static final Color mediumspringgreen = new Color(0x00fa9a);
    public static final Color mediumturquoise = new Color(0x48d1cc);
    public static final Color mediumvioletred = new Color(0xc71585);
    public static final Color midnightblue = new Color(0x191970);
    public static final Color mintcream = new Color(0xf5fffa);
    public static final Color mistyrose = new Color(0xffe4e1);
    public static final Color moccasin = new Color(0xffe4b5);
    public static final Color navajowhite = new Color(0xffdead);
    public static final Color navy = new Color(0x000080);
    public static final Color oldlace = new Color(0xfdf5e6);
    public static final Color olive = new Color(0x808000);
    public static final Color olivedrab = new Color(0x6b8e23);
    public static final Color orange = new Color(0xffa500);
    public static final Color orangered = new Color(0xff4500);
    public static final Color orchid = new Color(0xda70d6);
    public static final Color palegoldenrod = new Color(0xeee8aa);
    public static final Color palegreen = new Color(0x98fb98);
    public static final Color paleturquoise = new Color(0xafeeee);
    public static final Color palevioletred = new Color(0xdb7093);
    public static final Color papayawhip = new Color(0xffefd5);
    public static final Color peachpuff = new Color(0xffdab9);
    public static final Color peru = new Color(0xcd853f);
    public static final Color pink = new Color(0xffc0cb);
    public static final Color plum = new Color(0xdda0dd);
    public static final Color powderblue = new Color(0xb0e0e6);
    public static final Color purple = new Color(0x800080);
    public static final Color red = new Color(0xff0000);
    public static final Color rosybrown = new Color(0xbc8f8f);
    public static final Color royalblue = new Color(0x4169e1);
    public static final Color saddlebrown = new Color(0x8b4513);
    public static final Color salmon = new Color(0xfa8072);
    public static final Color sandybrown = new Color(0xf4a460);
    public static final Color seagreen = new Color(0x2e8b57);
    public static final Color seashell = new Color(0xfff5ee);
    public static final Color sienna = new Color(0xa0522d);
    public static final Color silver = new Color(0xc0c0c0);
    public static final Color skyblue = new Color(0x87ceeb);
    public static final Color slateblue = new Color(0x6a5acd);
    public static final Color slategray = new Color(0x708090);
    public static final Color snow = new Color(0xfffafa);
    public static final Color springgreen = new Color(0x00ff7f);
    public static final Color steelblue = new Color(0x4682b4);
    public static final Color tan = new Color(0xd2b48c);
    public static final Color teal = new Color(0x008080);
    public static final Color thistle = new Color(0xd8bfd8);
    public static final Color tomato = new Color(0xff6347);
    public static final Color turquoise = new Color(0x40e0d0);
    public static final Color violet = new Color(0xee82ee);
    public static final Color wheat = new Color(0xf5deb3);
    public static final Color white = new Color(0xffffff);
    public static final Color whitesmoke = new Color(0xf5f5f5);
    public static final Color yellow = new Color(0xffff00);
    public static final Color yellowgreen = new Color(0x9acd32);

    static {
        initColorsMap();
    }

}