unused/javajs/util/CU.java

   1 package javajs.util;
   2
   3 import java.util.Hashtable;
   4 import java.util.Map;
   5
   6 import javajs.api.GenericColor;
   7
   8 /**
   9  * ColorUtility
  10  *
  11  */
  12
  13 public class CU {
  14
  15   public static String toRGBHexString(GenericColor c) {
  16     int rgb = c.getRGB();
  17     if (rgb == 0)
  18       return "000000";
  19     String r  = "00" + Integer.toHexString((rgb >> 16) & 0xFF);
  20     r = r.substring(r.length() - 2);
  21     String g  = "00" + Integer.toHexString((rgb >> 8) & 0xFF);
  22     g = g.substring(g.length() - 2);
  23     String b  = "00" + Integer.toHexString(rgb & 0xFF);
  24     b = b.substring(b.length() - 2);
  25     return r + g + b;
  26   }
  27
  28   public static String toCSSString(GenericColor c) {
  29     int opacity = c.getOpacity255();
  30     if (opacity == 255)
  31       return "#" + toRGBHexString(c);
  32     int rgb = c.getRGB();
  33     return "rgba(" + ((rgb>>16)&0xFF) + "," + ((rgb>>8)&0xff) + "," + (rgb&0xff) + "," + opacity/255f  + ")";
  34   }
  35
  36   private final static String[] colorNames = {
  37     "black",                // 000000
  38     "pewhite",              // ffffff
  39     "pecyan",               // 00ffff
  40     "pepurple",             // d020ff
  41     "pegreen",              // 00ff00
  42     "peblue",               // 6060ff
  43     "peviolet",             // ff80c0
  44     "pebrown",              // a42028
  45     "pepink",               // ffd8d8
  46     "peyellow",             // ffff00
  47     "pedarkgreen",          // 00c000
  48     "peorange",             // ffb000
  49     "pelightblue",          // b0b0ff
  50     "pedarkcyan",           // 00a0a0
  51     "pedarkgray",           // 606060
  52
  53     "aliceblue",            // F0F8FF
  54     "antiquewhite",         // FAEBD7
  55     "aqua",                 // 00FFFF
  56     "aquamarine",           // 7FFFD4
  57     "azure",                // F0FFFF
  58     "beige",                // F5F5DC
  59     "bisque",               // FFE4C4
  60     "blanchedalmond",       // FFEBCD
  61     "blue",                 // 0000FF
  62     "blueviolet",           // 8A2BE2
  63     "brown",                // A52A2A
  64     "burlywood",            // DEB887
  65     "cadetblue",            // 5F9EA0
  66     "chartreuse",           // 7FFF00
  67     "chocolate",            // D2691E
  68     "coral",                // FF7F50
  69     "cornflowerblue",       // 6495ED
  70     "cornsilk",             // FFF8DC
  71     "crimson",              // DC143C
  72     "cyan",                 // 00FFFF
  73     "darkblue",             // 00008B
  74     "darkcyan",             // 008B8B
  75     "darkgoldenrod",        // B8860B
  76     "darkgray",             // A9A9A9
  77     "darkgreen",            // 006400
  78     "darkkhaki",            // BDB76B
  79     "darkmagenta",          // 8B008B
  80     "darkolivegreen",       // 556B2F
  81     "darkorange",           // FF8C00
  82     "darkorchid",           // 9932CC
  83     "darkred",              // 8B0000
  84     "darksalmon",           // E9967A
  85     "darkseagreen",         // 8FBC8F
  86     "darkslateblue",        // 483D8B
  87     "darkslategray",        // 2F4F4F
  88     "darkturquoise",        // 00CED1
  89     "darkviolet",           // 9400D3
  90     "deeppink",             // FF1493
  91     "deepskyblue",          // 00BFFF
  92     "dimgray",              // 696969
  93     "dodgerblue",           // 1E90FF
  94     "firebrick",            // B22222
  95     "floralwhite",          // FFFAF0 16775920
  96     "forestgreen",          // 228B22
  97     "fuchsia",              // FF00FF
  98     "gainsboro",            // DCDCDC
  99     "ghostwhite",           // F8F8FF
 100     "gold",                 // FFD700
 101     "goldenrod",            // DAA520
 102     "gray",                 // 808080
 103     "green",                // 008000
 104     "greenyellow",          // ADFF2F
 105     "honeydew",             // F0FFF0
 106     "hotpink",              // FF69B4
 107     "indianred",            // CD5C5C
 108     "indigo",               // 4B0082
 109     "ivory",                // FFFFF0
 110     "khaki",                // F0E68C
 111     "lavender",             // E6E6FA
 112     "lavenderblush",        // FFF0F5
 113     "lawngreen",            // 7CFC00
 114     "lemonchiffon",         // FFFACD
 115     "lightblue",            // ADD8E6
 116     "lightcoral",           // F08080
 117     "lightcyan",            // E0FFFF
 118     "lightgoldenrodyellow", // FAFAD2
 119     "lightgreen",           // 90EE90
 120     "lightgrey",            // D3D3D3
 121     "lightgray",            // D3D3D3
 122     "lightpink",            // FFB6C1
 123     "lightsalmon",          // FFA07A
 124     "lightseagreen",        // 20B2AA
 125     "lightskyblue",         // 87CEFA
 126     "lightslategray",       // 778899
 127     "lightsteelblue",       // B0C4DE
 128     "lightyellow",          // FFFFE0
 129     "lime",                 // 00FF00
 130     "limegreen",            // 32CD32
 131     "linen",                // FAF0E6
 132     "magenta",              // FF00FF
 133     "maroon",               // 800000
 134     "mediumaquamarine",     // 66CDAA
 135     "mediumblue",           // 0000CD
 136     "mediumorchid",         // BA55D3
 137     "mediumpurple",         // 9370DB
 138     "mediumseagreen",       // 3CB371
 139     "mediumslateblue",      // 7B68EE
 140     "mediumspringgreen",    // 00FA9A
 141     "mediumturquoise",      // 48D1CC
 142     "mediumvioletred",      // C71585
 143     "midnightblue",         // 191970
 144     "mintcream",            // F5FFFA
 145     "mistyrose",            // FFE4E1
 146     "moccasin",             // FFE4B5
 147     "navajowhite",          // FFDEAD
 148     "navy",                 // 000080
 149     "oldlace",              // FDF5E6
 150     "olive",                // 808000
 151     "olivedrab",            // 6B8E23
 152     "orange",               // FFA500
 153     "orangered",            // FF4500
 154     "orchid",               // DA70D6
 155     "palegoldenrod",        // EEE8AA
 156     "palegreen",            // 98FB98
 157     "paleturquoise",        // AFEEEE
 158     "palevioletred",        // DB7093
 159     "papayawhip",           // FFEFD5
 160     "peachpuff",            // FFDAB9
 161     "peru",                 // CD853F
 162     "pink",                 // FFC0CB
 163     "plum",                 // DDA0DD
 164     "powderblue",           // B0E0E6
 165     "purple",               // 800080
 166     "red",                  // FF0000
 167     "rosybrown",            // BC8F8F
 168     "royalblue",            // 4169E1
 169     "saddlebrown",          // 8B4513
 170     "salmon",               // FA8072
 171     "sandybrown",           // F4A460
 172     "seagreen",             // 2E8B57
 173     "seashell",             // FFF5EE
 174     "sienna",               // A0522D
 175     "silver",               // C0C0C0
 176     "skyblue",              // 87CEEB
 177     "slateblue",            // 6A5ACD
 178     "slategray",            // 708090
 179     "snow",                 // FFFAFA 16775930
 180     "springgreen",          // 00FF7F
 181     "steelblue",            // 4682B4
 182     "tan",                  // D2B48C
 183     "teal",                 // 008080
 184     "thistle",              // D8BFD8
 185     "tomato",               // FF6347
 186     "turquoise",            // 40E0D0
 187     "violet",               // EE82EE
 188     "wheat",                // F5DEB3
 189     "white",                // FFFFFF 16777215
 190     "whitesmoke",           // F5F5F5
 191     "yellow",               // FFFF00
 192     "yellowgreen",          // 9ACD32
 193     // plus a few rasmol names/values
 194     "bluetint",             // AFD7FF
 195     "greenblue",            // 2E8B57
 196     "greentint",            // 98FFB3
 197     "grey",                 // 808080
 198     "gray",
 199     "pinktint",             // FFABBB
 200     "redorange",            // FF4500
 201     "yellowtint",           // F6F675
 202   };
 203
 204   private final static int[] colorArgbs = {
 205   //#FFFFC3 hover
 206     0xFF000000, // black
 207     // plus the PE chain colors
 208     0xFFffffff, // pewhite
 209     0xFF00ffff, // pecyan
 210     0xFFd020ff, // pepurple
 211     0xFF00ff00, // pegreen
 212     0xFF6060ff, // peblue
 213     0xFFff80c0, // peviolet
 214     0xFFa42028, // pebrown
 215     0xFFffd8d8, // pepink
 216     0xFFffff00, // peyellow
 217     0xFF00c000, // pedarkgreen
 218     0xFFffb000, // peorange
 219     0xFFb0b0ff, // pelightblue
 220     0xFF00a0a0, // pedarkcyan
 221     0xFF606060, // pedarkgray
 222     // standard JavaScript
 223     0xFFF0F8FF, // aliceblue
 224     0xFFFAEBD7, // antiquewhite
 225     0xFF00FFFF, // aqua
 226     0xFF7FFFD4, // aquamarine
 227     0xFFF0FFFF, // azure
 228     0xFFF5F5DC, // beige
 229     0xFFFFE4C4, // bisque
 230     0xFFFFEBCD, // blanchedalmond
 231     0xFF0000FF, // blue
 232     0xFF8A2BE2, // blueviolet
 233     0xFFA52A2A, // brown
 234     0xFFDEB887, // burlywood
 235     0xFF5F9EA0, // cadetblue
 236     0xFF7FFF00, // chartreuse
 237     0xFFD2691E, // chocolate
 238     0xFFFF7F50, // coral
 239     0xFF6495ED, // cornflowerblue
 240     0xFFFFF8DC, // cornsilk
 241     0xFFDC143C, // crimson
 242     0xFF00FFFF, // cyan
 243     0xFF00008B, // darkblue
 244     0xFF008B8B, // darkcyan
 245     0xFFB8860B, // darkgoldenrod
 246     0xFFA9A9A9, // darkgray
 247     0xFF006400, // darkgreen
 248
 249     0xFFBDB76B, // darkkhaki
 250     0xFF8B008B, // darkmagenta
 251     0xFF556B2F, // darkolivegreen
 252     0xFFFF8C00, // darkorange
 253     0xFF9932CC, // darkorchid
 254     0xFF8B0000, // darkred
 255     0xFFE9967A, // darksalmon
 256     0xFF8FBC8F, // darkseagreen
 257     0xFF483D8B, // darkslateblue
 258     0xFF2F4F4F, // darkslategray
 259     0xFF00CED1, // darkturquoise
 260     0xFF9400D3, // darkviolet
 261     0xFFFF1493, // deeppink
 262     0xFF00BFFF, // deepskyblue
 263     0xFF696969, // dimgray
 264     0xFF1E90FF, // dodgerblue
 265     0xFFB22222, // firebrick
 266     0xFFFFFAF0, // floralwhite
 267     0xFF228B22, // forestgreen
 268     0xFFFF00FF, // fuchsia
 269     0xFFDCDCDC, // gainsboro
 270     0xFFF8F8FF, // ghostwhite
 271     0xFFFFD700, // gold
 272     0xFFDAA520, // goldenrod
 273     0xFF808080, // gray
 274     0xFF008000, // green
 275     0xFFADFF2F, // greenyellow
 276     0xFFF0FFF0, // honeydew
 277     0xFFFF69B4, // hotpink
 278     0xFFCD5C5C, // indianred
 279     0xFF4B0082, // indigo
 280     0xFFFFFFF0, // ivory
 281     0xFFF0E68C, // khaki
 282     0xFFE6E6FA, // lavender
 283     0xFFFFF0F5, // lavenderblush
 284     0xFF7CFC00, // lawngreen
 285     0xFFFFFACD, // lemonchiffon
 286     0xFFADD8E6, // lightblue
 287     0xFFF08080, // lightcoral
 288     0xFFE0FFFF, // lightcyan
 289     0xFFFAFAD2, // lightgoldenrodyellow
 290     0xFF90EE90, // lightgreen
 291     0xFFD3D3D3, // lightgrey
 292     0xFFD3D3D3, // lightgray
 293     0xFFFFB6C1, // lightpink
 294     0xFFFFA07A, // lightsalmon
 295     0xFF20B2AA, // lightseagreen
 296     0xFF87CEFA, // lightskyblue
 297     0xFF778899, // lightslategray
 298     0xFFB0C4DE, // lightsteelblue
 299     0xFFFFFFE0, // lightyellow
 300     0xFF00FF00, // lime
 301     0xFF32CD32, // limegreen
 302     0xFFFAF0E6, // linen
 303     0xFFFF00FF, // magenta
 304     0xFF800000, // maroon
 305     0xFF66CDAA, // mediumaquamarine
 306     0xFF0000CD, // mediumblue
 307     0xFFBA55D3, // mediumorchid
 308     0xFF9370DB, // mediumpurple
 309     0xFF3CB371, // mediumseagreen
 310     0xFF7B68EE, // mediumslateblue
 311     0xFF00FA9A, // mediumspringgreen
 312     0xFF48D1CC, // mediumturquoise
 313     0xFFC71585, // mediumvioletred
 314     0xFF191970, // midnightblue
 315     0xFFF5FFFA, // mintcream
 316     0xFFFFE4E1, // mistyrose
 317     0xFFFFE4B5, // moccasin
 318     0xFFFFDEAD, // navajowhite
 319     0xFF000080, // navy
 320     0xFFFDF5E6, // oldlace
 321     0xFF808000, // olive
 322     0xFF6B8E23, // olivedrab
 323     0xFFFFA500, // orange
 324     0xFFFF4500, // orangered
 325     0xFFDA70D6, // orchid
 326     0xFFEEE8AA, // palegoldenrod
 327     0xFF98FB98, // palegreen
 328     0xFFAFEEEE, // paleturquoise
 329     0xFFDB7093, // palevioletred
 330     0xFFFFEFD5, // papayawhip
 331     0xFFFFDAB9, // peachpuff
 332     0xFFCD853F, // peru
 333     0xFFFFC0CB, // pink
 334     0xFFDDA0DD, // plum
 335     0xFFB0E0E6, // powderblue
 336     0xFF800080, // purple
 337     0xFFFF0000, // red
 338     0xFFBC8F8F, // rosybrown
 339     0xFF4169E1, // royalblue
 340     0xFF8B4513, // saddlebrown
 341     0xFFFA8072, // salmon
 342     0xFFF4A460, // sandybrown
 343     0xFF2E8B57, // seagreen
 344     0xFFFFF5EE, // seashell
 345     0xFFA0522D, // sienna
 346     0xFFC0C0C0, // silver
 347     0xFF87CEEB, // skyblue
 348     0xFF6A5ACD, // slateblue
 349     0xFF708090, // slategray
 350     0xFFFFFAFA, // snow
 351     0xFF00FF7F, // springgreen
 352     0xFF4682B4, // steelblue
 353     0xFFD2B48C, // tan
 354     0xFF008080, // teal
 355     0xFFD8BFD8, // thistle
 356     0xFFFF6347, // tomato
 357     0xFF40E0D0, // turquoise
 358     0xFFEE82EE, // violet
 359     0xFFF5DEB3, // wheat
 360     0xFFFFFFFF, // white
 361     0xFFF5F5F5, // whitesmoke
 362     0xFFFFFF00, // yellow
 363     0xFF9ACD32, // yellowgreen
 364     // plus a few rasmol names/values
 365     0xFFAFD7FF, // bluetint
 366     0xFF2E8B57, // greenblue
 367     0xFF98FFB3, // greentint
 368     0xFF808080, // grey
 369     0xFF808080, // gray
 370     0xFFFFABBB, // pinktint
 371     0xFFFF4500, // redorange
 372     0xFFF6F675, // yellowtint
 373   };
 374
 375   private static final Map<String, Integer> mapJavaScriptColors = new Hashtable<String, Integer>();
 376
 377   static {
 378     for (int i = colorNames.length; --i >= 0; )
 379       mapJavaScriptColors.put(colorNames[i], Integer.valueOf(colorArgbs[i]));
 380   }
 381
 382   /**
 383    * accepts [xRRGGBB] or [0xRRGGBB] or [0xFFRRGGBB] or #RRGGBB or
 384    * [red,green,blue] or a valid JavaScript color
 385    *
 386    * @param strColor
 387    * @return 0 if invalid or integer color
 388    */
 389   public static int getArgbFromString(String strColor) {
 390     int len = 0;
 391     if (strColor == null || (len = strColor.length()) == 0)
 392       return 0;
 393     strColor = strColor.toLowerCase();
 394     if (strColor.charAt(0) == '[' && strColor.charAt(len - 1) == ']') {
 395       String check;
 396       if (strColor.indexOf(",") >= 0) {
 397         String[] tokens = PT.split(strColor.substring(1, strColor
 398             .length() - 1), ",");
 399         if (tokens.length != 3)
 400           return 0;
 401         float red = PT.parseFloat(tokens[0]);
 402         float grn = PT.parseFloat(tokens[1]);
 403         float blu = PT.parseFloat(tokens[2]);
 404         return colorTriadToFFRGB(red, grn, blu);
 405       }
 406       switch (len) {
 407       case 9:
 408         check = "x";
 409         break;
 410       case 10:
 411         check = "0x";
 412         break;
 413       default:
 414         return 0;
 415       }
 416       if (strColor.indexOf(check) != 1)
 417         return 0;
 418       strColor = "#" + strColor.substring(len - 7, len - 1);
 419       len = 7;
 420     }
 421     if (len == 7 && strColor.charAt(0) == '#') {
 422       try {
 423         return PT.parseIntRadix(strColor.substring(1, 7), 16) | 0xFF000000;
 424       } catch (Exception e) {
 425         return 0;
 426       }
 427     }
 428     Integer boxedArgb = mapJavaScriptColors.get(strColor);
 429     return (boxedArgb == null ? 0 : boxedArgb.intValue());
 430   }
 431
 432   public static int colorTriadToFFRGB(float x, float y, float z) {
 433     if (x <= 1 && y <= 1 && z <= 1) {
 434       if (x > 0)
 435         x = x * 256 - 1;
 436       if (y > 0)
 437         y = y * 256 - 1;
 438       if (z > 0)
 439         z = z * 256 - 1;
 440     }
 441     return rgb((int) x, (int) y, (int) z);
 442   }
 443
 444   public static int rgb(int red, int grn, int blu) {
 445     return 0xFF000000 | (red << 16) | (grn << 8) | blu;
 446   }
 447
 448   public final static P3 colorPtFromString(String colorName) {
 449     return colorPtFromInt(getArgbFromString(colorName), null);
 450   }
 451
 452   public final static P3 colorPtFromInt(int color, P3 pt) {
 453     if (pt == null)
 454       pt = new P3();
 455     pt.set((color >> 16) & 0xFF, (color >> 8) & 0xFF, color & 0xFF);
 456     return pt;
 457   }
 458
 459   public static int colorPtToFFRGB(T3 pt) {
 460     return colorTriadToFFRGB(pt.x, pt.y, pt.z);
 461   }
 462
 463   public static void toRGB3f(int c, float[] f) {
 464     f[0] = ((c >> 16) & 0xFF) / 255f; // red
 465     f[1] = ((c >> 8) & 0xFF) / 255f;
 466     f[2] = (c & 0xFF) / 255f;
 467   }
 468
 469   /**
 470    * Return a greyscale rgb value 0-FF using NTSC color lightness algorithm
 471    *<p>
 472    * the alpha component is set to 0xFF. If you want a value in the
 473    * range 0-255 then & the result with 0xFF;
 474    *
 475    * @param rgb the rgb value
 476    * @return a grayscale value in the range 0 - 255 decimal
 477    */
 478   public static int toFFGGGfromRGB(int rgb) {
 479     int grey = (((2989 * ((rgb >> 16) & 0xFF)) +
 480                 (5870 * ((rgb >> 8) & 0xFF)) +
 481                 (1140 * (rgb & 0xFF)) + 5000) / 10000) & 0xFFFFFF;
 482     return rgb(grey, grey, grey);
 483   }
 484
 485
 486   /**
 487    * Convert RGB values to HSL (hue/saturation/lightness)
 488    *
 489    * @param rgb
 490    *        range 255 255 255
 491    * @param doRound
 492    *        set to false when just using this for
 493    *        for RGB -- HSL -- HSL' -- RGB' conversion
 494    *
 495    * @return the HSL as P3 range 360 100 100
 496    * @author hansonr
 497    */
 498
 499   public static P3 rgbToHSL(P3 rgb, boolean doRound) {
 500     // adapted from http://tips4java.wordpress.com/2009/07/05/hsl-color/
 501     // see http://en.wikipedia.org/wiki/HSL_color_space
 502     float r = rgb.x / 255;
 503     float g = rgb.y / 255;
 504     float b = rgb.z / 255;
 505     float min = Math.min(r, Math.min(g, b));
 506     float max = Math.max(r, Math.max(g, b));
 507
 508     //  lightness is just p * 50
 509
 510     float p = (max + min);
 511     float q = (max - min);
 512
 513     float h = (60 * ((q == 0 ? 0 : max == r ? ((g - b) / q + 6)
 514         : max == g ? (b - r) / q + 2 : (r - g) / q + 4))) % 360;
 515
 516     float s = q / (q == 0 ? 1 : p <= 1 ? p : 2 - p);
 517
 518     // we round to tenths for HSL so that we can  return enough
 519     // precision to get back 1-255 in RGB
 520     return (doRound ? P3.new3(Math.round(h*10)/10f, Math.round(s * 1000)/10f,
 521         Math.round(p * 500)/10f) : P3.new3(h, s * 100, p * 50));
 522   }
 523
 524   /**
 525    * Convert HSL (hue/saturation/luninance) values to RGB
 526    *
 527    * @param hsl in the range 360, 100, 100
 528    * @return the RGB as P3 range 0 to 255
 529    * @author hansonr
 530    */
 531   public static P3 hslToRGB(P3 hsl) {
 532     // adapted from http://tips4java.wordpress.com/2009/07/05/hsl-color/
 533     // see http://en.wikipedia.org/wiki/HSL_color_space
 534
 535     // highly condensed
 536
 537     float h = Math.max(0,  Math.min(360, hsl.x)) / 60;
 538     float s = Math.max(0,  Math.min(100, hsl.y)) / 100;
 539     float l = Math.max(0,  Math.min(100, hsl.z)) / 100;
 540
 541     float p = l - (l < 0.5 ? l : 1 - l) * s;
 542     float q = 2 * (l - p);
 543
 544     float r = toRGB(p, q, h + 2);
 545     float g = toRGB(p, q, h);
 546     float b = toRGB(p, q, h - 2);
 547     return P3.new3(Math.round(r * 255), Math.round(g * 255), Math.round(b * 255));
 548   }
 549
 550   private static float toRGB(float p, float q, float h) {
 551     return ((h = (h + (h < 0 ? 6 : h > 6 ? -6 : 0))) < 1 ? p + q * h
 552         : h < 3 ? p + q : h < 4 ? p + q * (4 - h) : p);
 553   }
 554
 555 }