vendor/phenx/php-svg-lib/src/Svg/Style.php

   1 <?php
   2 /**
   3  * @package php-svg-lib
   4  * @link    http://github.com/PhenX/php-svg-lib
   5  * @author  Fabien M�nager <fabien.menager@gmail.com>
   6  * @license GNU LGPLv3+ http://www.gnu.org/copyleft/lesser.html
   7  */
   8
   9 namespace Svg;
  10
  11 use Svg\Tag\AbstractTag;
  12
  13 class Style
  14 {
  15     const TYPE_COLOR = 1;
  16     const TYPE_LENGTH = 2;
  17     const TYPE_NAME = 3;
  18     const TYPE_ANGLE = 4;
  19     const TYPE_NUMBER = 5;
  20
  21     public $color;
  22     public $opacity;
  23     public $display;
  24
  25     public $fill;
  26     public $fillOpacity;
  27     public $fillRule;
  28
  29     public $stroke;
  30     public $strokeOpacity;
  31     public $strokeLinecap;
  32     public $strokeLinejoin;
  33     public $strokeMiterlimit;
  34     public $strokeWidth;
  35     public $strokeDasharray;
  36     public $strokeDashoffset;
  37
  38     public $fontFamily = 'serif';
  39     public $fontSize = 12;
  40     public $fontWeight = 'normal';
  41     public $fontStyle = 'normal';
  42     public $textAnchor = 'start';
  43
  44     protected function getStyleMap()
  45     {
  46         return array(
  47             'color'             => array('color', self::TYPE_COLOR),
  48             'opacity'           => array('opacity', self::TYPE_NUMBER),
  49             'display'           => array('display', self::TYPE_NAME),
  50
  51             'fill'              => array('fill', self::TYPE_COLOR),
  52             'fill-opacity'      => array('fillOpacity', self::TYPE_NUMBER),
  53             'fill-rule'         => array('fillRule', self::TYPE_NAME),
  54
  55             'stroke'            => array('stroke', self::TYPE_COLOR),
  56             'stroke-dasharray'  => array('strokeDasharray', self::TYPE_NAME),
  57             'stroke-dashoffset' => array('strokeDashoffset', self::TYPE_NUMBER),
  58             'stroke-linecap'    => array('strokeLinecap', self::TYPE_NAME),
  59             'stroke-linejoin'   => array('strokeLinejoin', self::TYPE_NAME),
  60             'stroke-miterlimit' => array('strokeMiterlimit', self::TYPE_NUMBER),
  61             'stroke-opacity'    => array('strokeOpacity', self::TYPE_NUMBER),
  62             'stroke-width'      => array('strokeWidth', self::TYPE_NUMBER),
  63
  64             'font-family'       => array('fontFamily', self::TYPE_NAME),
  65             'font-size'         => array('fontSize', self::TYPE_NUMBER),
  66             'font-weight'       => array('fontWeight', self::TYPE_NAME),
  67             'font-style'        => array('fontStyle', self::TYPE_NAME),
  68             'text-anchor'       => array('textAnchor', self::TYPE_NAME),
  69         );
  70     }
  71
  72     /**
  73      * @param $attributes
  74      *
  75      * @return Style
  76      */
  77     public function fromAttributes($attributes)
  78     {
  79         $this->fillStyles($attributes);
  80
  81         if (isset($attributes["style"])) {
  82             $styles = self::parseCssStyle($attributes["style"]);
  83             $this->fillStyles($styles);
  84         }
  85     }
  86
  87     public function inherit(AbstractTag $tag) {
  88         $group = $tag->getParentGroup();
  89         if ($group) {
  90             $parent_style = $group->getStyle();
  91
  92             foreach ($parent_style as $_key => $_value) {
  93                 if ($_value !== null) {
  94                     $this->$_key = $_value;
  95                 }
  96             }
  97         }
  98     }
  99
 100     public function fromStyleSheets(AbstractTag $tag, $attributes) {
 101         $class = isset($attributes["class"]) ? preg_split('/\s+/', trim($attributes["class"])) : null;
 102
 103         $stylesheets = $tag->getDocument()->getStyleSheets();
 104
 105         $styles = array();
 106
 107         foreach ($stylesheets as $_sc) {
 108
 109             /** @var \Sabberworm\CSS\RuleSet\DeclarationBlock $_decl */
 110             foreach ($_sc->getAllDeclarationBlocks() as $_decl) {
 111
 112                 /** @var \Sabberworm\CSS\Property\Selector $_selector */
 113                 foreach ($_decl->getSelectors() as $_selector) {
 114                     $_selector = $_selector->getSelector();
 115
 116                     // Match class name
 117                     if ($class !== null) {
 118                         foreach ($class as $_class) {
 119                             if ($_selector === ".$_class") {
 120                                 /** @var \Sabberworm\CSS\Rule\Rule $_rule */
 121                                 foreach ($_decl->getRules() as $_rule) {
 122                                     $styles[$_rule->getRule()] = $_rule->getValue() . "";
 123                                 }
 124
 125                                 break 2;
 126                             }
 127                         }
 128                     }
 129
 130                     // Match tag name
 131                     if ($_selector === $tag->tagName) {
 132                         /** @var \Sabberworm\CSS\Rule\Rule $_rule */
 133                         foreach ($_decl->getRules() as $_rule) {
 134                             $styles[$_rule->getRule()] = $_rule->getValue() . "";
 135                         }
 136
 137                         break;
 138                     }
 139                 }
 140             }
 141         }
 142
 143         $this->fillStyles($styles);
 144     }
 145
 146     protected function fillStyles($styles)
 147     {
 148         foreach ($this->getStyleMap() as $from => $spec) {
 149             if (isset($styles[$from])) {
 150                 list($to, $type) = $spec;
 151                 $value = null;
 152                 switch ($type) {
 153                     case self::TYPE_COLOR:
 154                         $value = self::parseColor($styles[$from]);
 155                         break;
 156
 157                     case self::TYPE_NUMBER:
 158                         $value = ($styles[$from] === null) ? null : (float)$styles[$from];
 159                         break;
 160
 161                     default:
 162                         $value = $styles[$from];
 163                 }
 164
 165                 if ($value !== null) {
 166                     $this->$to = $value;
 167                 }
 168             }
 169         }
 170     }
 171
 172     static function parseColor($color)
 173     {
 174         $color = strtolower(trim($color));
 175
 176         $parts = preg_split('/[^,]\s+/', $color, 2);
 177
 178         if (count($parts) == 2) {
 179             $color = $parts[1];
 180         }
 181         else {
 182             $color = $parts[0];
 183         }
 184
 185         if ($color === "none") {
 186             return "none";
 187         }
 188
 189         // SVG color name
 190         if (isset(self::$colorNames[$color])) {
 191             return self::parseHexColor(self::$colorNames[$color]);
 192         }
 193
 194         // Hex color
 195         if ($color[0] === "#") {
 196             return self::parseHexColor($color);
 197         }
 198
 199         // RGB color
 200         if (strpos($color, "rgb") !== false) {
 201             return self::getTriplet($color);
 202         }
 203
 204         // RGB color
 205         if (strpos($color, "hsl") !== false) {
 206             $triplet = self::getTriplet($color, true);
 207
 208             if ($triplet == null) {
 209                 return null;
 210             }
 211
 212             list($h, $s, $l) = $triplet;
 213
 214             $r = $l;
 215             $g = $l;
 216             $b = $l;
 217             $v = ($l <= 0.5) ? ($l * (1.0 + $s)) : ($l + $s - $l * $s);
 218             if ($v > 0) {
 219                 $m = $l + $l - $v;
 220                 $sv = ($v - $m) / $v;
 221                 $h *= 6.0;
 222                 $sextant = floor($h);
 223                 $fract = $h - $sextant;
 224                 $vsf = $v * $sv * $fract;
 225                 $mid1 = $m + $vsf;
 226                 $mid2 = $v - $vsf;
 227
 228                 switch ($sextant) {
 229                     case 0:
 230                         $r = $v;
 231                         $g = $mid1;
 232                         $b = $m;
 233                         break;
 234                     case 1:
 235                         $r = $mid2;
 236                         $g = $v;
 237                         $b = $m;
 238                         break;
 239                     case 2:
 240                         $r = $m;
 241                         $g = $v;
 242                         $b = $mid1;
 243                         break;
 244                     case 3:
 245                         $r = $m;
 246                         $g = $mid2;
 247                         $b = $v;
 248                         break;
 249                     case 4:
 250                         $r = $mid1;
 251                         $g = $m;
 252                         $b = $v;
 253                         break;
 254                     case 5:
 255                         $r = $v;
 256                         $g = $m;
 257                         $b = $mid2;
 258                         break;
 259                 }
 260             }
 261
 262             return array(
 263                 $r * 255.0,
 264                 $g * 255.0,
 265                 $b * 255.0,
 266             );
 267         }
 268
 269         // Gradient
 270         if (strpos($color, "url(#") !== false) {
 271             $i = strpos($color, "(");
 272             $j = strpos($color, ")");
 273
 274             // Bad url format
 275             if ($i === false || $j === false) {
 276                 return null;
 277             }
 278
 279             return trim(substr($color, $i + 1, $j - $i - 1));
 280         }
 281
 282         return null;
 283     }
 284
 285     static function getTriplet($color, $percent = false) {
 286         $i = strpos($color, "(");
 287         $j = strpos($color, ")");
 288
 289         // Bad color value
 290         if ($i === false || $j === false) {
 291             return null;
 292         }
 293
 294         $triplet = preg_split("/\\s*,\\s*/", trim(substr($color, $i + 1, $j - $i - 1)));
 295
 296         if (count($triplet) != 3) {
 297             return null;
 298         }
 299
 300         foreach (array_keys($triplet) as $c) {
 301             $triplet[$c] = trim($triplet[$c]);
 302
 303             if ($percent) {
 304                 if ($triplet[$c][strlen($triplet[$c]) - 1] === "%") {
 305                     $triplet[$c] = $triplet[$c] / 100;
 306                 }
 307                 else {
 308                     $triplet[$c] = $triplet[$c] / 255;
 309                 }
 310             }
 311             else {
 312                 if ($triplet[$c][strlen($triplet[$c]) - 1] === "%") {
 313                     $triplet[$c] = round($triplet[$c] * 2.55);
 314                 }
 315             }
 316         }
 317
 318         return $triplet;
 319     }
 320
 321     static function parseHexColor($hex)
 322     {
 323         $c = array(0, 0, 0);
 324
 325         // #FFFFFF
 326         if (isset($hex[6])) {
 327             $c[0] = hexdec(substr($hex, 1, 2));
 328             $c[1] = hexdec(substr($hex, 3, 2));
 329             $c[2] = hexdec(substr($hex, 5, 2));
 330         } else {
 331             $c[0] = hexdec($hex[1] . $hex[1]);
 332             $c[1] = hexdec($hex[2] . $hex[2]);
 333             $c[2] = hexdec($hex[3] . $hex[3]);
 334         }
 335
 336         return $c;
 337     }
 338
 339     /**
 340      * Simple CSS parser
 341      *
 342      * @param $style
 343      *
 344      * @return array
 345      */
 346     static function parseCssStyle($style)
 347     {
 348         $matches = array();
 349         preg_match_all("/([a-z-]+)\\s*:\\s*([^;$]+)/si", $style, $matches, PREG_SET_ORDER);
 350
 351         $styles = array();
 352         foreach ($matches as $match) {
 353             $styles[$match[1]] = $match[2];
 354         }
 355
 356         return $styles;
 357     }
 358
 359     /**
 360      * Convert a size to a float
 361      *
 362      * @param string $size          SVG size
 363      * @param float  $dpi           DPI
 364      * @param float  $referenceSize Reference size
 365      *
 366      * @return float|null
 367      */
 368     static function convertSize($size, $referenceSize = 11.0, $dpi = 96.0) {
 369         $size = trim(strtolower($size));
 370
 371         if (is_numeric($size)) {
 372             return $size;
 373         }
 374
 375         if ($pos = strpos($size, "px")) {
 376             return floatval(substr($size, 0, $pos));
 377         }
 378
 379         if ($pos = strpos($size, "pt")) {
 380             return floatval(substr($size, 0, $pos));
 381         }
 382
 383         if ($pos = strpos($size, "cm")) {
 384             return floatval(substr($size, 0, $pos)) * $dpi;
 385         }
 386
 387         if ($pos = strpos($size, "%")) {
 388             return $referenceSize * substr($size, 0, $pos) / 100;
 389         }
 390
 391         if ($pos = strpos($size, "em")) {
 392             return $referenceSize * substr($size, 0, $pos);
 393         }
 394
 395         // TODO cm, mm, pc, in, etc
 396
 397         return null;
 398     }
 399
 400     static $colorNames = array(
 401         'antiquewhite'         => '#FAEBD7',
 402         'aqua'                 => '#00FFFF',
 403         'aquamarine'           => '#7FFFD4',
 404         'beige'                => '#F5F5DC',
 405         'black'                => '#000000',
 406         'blue'                 => '#0000FF',
 407         'brown'                => '#A52A2A',
 408         'cadetblue'            => '#5F9EA0',
 409         'chocolate'            => '#D2691E',
 410         'cornflowerblue'       => '#6495ED',
 411         'crimson'              => '#DC143C',
 412         'darkblue'             => '#00008B',
 413         'darkgoldenrod'        => '#B8860B',
 414         'darkgreen'            => '#006400',
 415         'darkmagenta'          => '#8B008B',
 416         'darkorange'           => '#FF8C00',
 417         'darkred'              => '#8B0000',
 418         'darkseagreen'         => '#8FBC8F',
 419         'darkslategray'        => '#2F4F4F',
 420         'darkviolet'           => '#9400D3',
 421         'deepskyblue'          => '#00BFFF',
 422         'dodgerblue'           => '#1E90FF',
 423         'firebrick'            => '#B22222',
 424         'forestgreen'          => '#228B22',
 425         'fuchsia'              => '#FF00FF',
 426         'gainsboro'            => '#DCDCDC',
 427         'gold'                 => '#FFD700',
 428         'gray'                 => '#808080',
 429         'green'                => '#008000',
 430         'greenyellow'          => '#ADFF2F',
 431         'hotpink'              => '#FF69B4',
 432         'indigo'               => '#4B0082',
 433         'khaki'                => '#F0E68C',
 434         'lavenderblush'        => '#FFF0F5',
 435         'lemonchiffon'         => '#FFFACD',
 436         'lightcoral'           => '#F08080',
 437         'lightgoldenrodyellow' => '#FAFAD2',
 438         'lightgreen'           => '#90EE90',
 439         'lightsalmon'          => '#FFA07A',
 440         'lightskyblue'         => '#87CEFA',
 441         'lightslategray'       => '#778899',
 442         'lightyellow'          => '#FFFFE0',
 443         'lime'                 => '#00FF00',
 444         'limegreen'            => '#32CD32',
 445         'magenta'              => '#FF00FF',
 446         'maroon'               => '#800000',
 447         'mediumaquamarine'     => '#66CDAA',
 448         'mediumorchid'         => '#BA55D3',
 449         'mediumseagreen'       => '#3CB371',
 450         'mediumspringgreen'    => '#00FA9A',
 451         'mediumvioletred'      => '#C71585',
 452         'midnightblue'         => '#191970',
 453         'mintcream'            => '#F5FFFA',
 454         'moccasin'             => '#FFE4B5',
 455         'navy'                 => '#000080',
 456         'olive'                => '#808000',
 457         'orange'               => '#FFA500',
 458         'orchid'               => '#DA70D6',
 459         'palegreen'            => '#98FB98',
 460         'palevioletred'        => '#D87093',
 461         'peachpuff'            => '#FFDAB9',
 462         'pink'                 => '#FFC0CB',
 463         'powderblue'           => '#B0E0E6',
 464         'purple'               => '#800080',
 465         'red'                  => '#FF0000',
 466         'royalblue'            => '#4169E1',
 467         'salmon'               => '#FA8072',
 468         'seagreen'             => '#2E8B57',
 469         'sienna'               => '#A0522D',
 470         'silver'               => '#C0C0C0',
 471         'skyblue'              => '#87CEEB',
 472         'slategray'            => '#708090',
 473         'springgreen'          => '#00FF7F',
 474         'steelblue'            => '#4682B4',
 475         'tan'                  => '#D2B48C',
 476         'teal'                 => '#008080',
 477         'thistle'              => '#D8BFD8',
 478         'turquoise'            => '#40E0D0',
 479         'violetred'            => '#D02090',
 480         'white'                => '#FFFFFF',
 481         'yellow'               => '#FFFF00',
 482         'aliceblue'            => '#f0f8ff',
 483         'azure'                => '#f0ffff',
 484         'bisque'               => '#ffe4c4',
 485         'blanchedalmond'       => '#ffebcd',
 486         'blueviolet'           => '#8a2be2',
 487         'burlywood'            => '#deb887',
 488         'chartreuse'           => '#7fff00',
 489         'coral'                => '#ff7f50',
 490         'cornsilk'             => '#fff8dc',
 491         'cyan'                 => '#00ffff',
 492         'darkcyan'             => '#008b8b',
 493         'darkgray'             => '#a9a9a9',
 494         'darkgrey'             => '#a9a9a9',
 495         'darkkhaki'            => '#bdb76b',
 496         'darkolivegreen'       => '#556b2f',
 497         'darkorchid'           => '#9932cc',
 498         'darksalmon'           => '#e9967a',
 499         'darkslateblue'        => '#483d8b',
 500         'darkslategrey'        => '#2f4f4f',
 501         'darkturquoise'        => '#00ced1',
 502         'deeppink'             => '#ff1493',
 503         'dimgray'              => '#696969',
 504         'dimgrey'              => '#696969',
 505         'floralwhite'          => '#fffaf0',
 506         'ghostwhite'           => '#f8f8ff',
 507         'goldenrod'            => '#daa520',
 508         'grey'                 => '#808080',
 509         'honeydew'             => '#f0fff0',
 510         'indianred'            => '#cd5c5c',
 511         'ivory'                => '#fffff0',
 512         'lavender'             => '#e6e6fa',
 513         'lawngreen'            => '#7cfc00',
 514         'lightblue'            => '#add8e6',
 515         'lightcyan'            => '#e0ffff',
 516         'lightgray'            => '#d3d3d3',
 517         'lightgrey'            => '#d3d3d3',
 518         'lightpink'            => '#ffb6c1',
 519         'lightseagreen'        => '#20b2aa',
 520         'lightslategrey'       => '#778899',
 521         'lightsteelblue'       => '#b0c4de',
 522         'linen'                => '#faf0e6',
 523         'mediumblue'           => '#0000cd',
 524         'mediumpurple'         => '#9370db',
 525         'mediumslateblue'      => '#7b68ee',
 526         'mediumturquoise'      => '#48d1cc',
 527         'mistyrose'            => '#ffe4e1',
 528         'navajowhite'          => '#ffdead',
 529         'oldlace'              => '#fdf5e6',
 530         'olivedrab'            => '#6b8e23',
 531         'orangered'            => '#ff4500',
 532         'palegoldenrod'        => '#eee8aa',
 533         'paleturquoise'        => '#afeeee',
 534         'papayawhip'           => '#ffefd5',
 535         'peru'                 => '#cd853f',
 536         'plum'                 => '#dda0dd',
 537         'rosybrown'            => '#bc8f8f',
 538         'saddlebrown'          => '#8b4513',
 539         'sandybrown'           => '#f4a460',
 540         'seashell'             => '#fff5ee',
 541         'slateblue'            => '#6a5acd',
 542         'slategrey'            => '#708090',
 543         'snow'                 => '#fffafa',
 544         'tomato'               => '#ff6347',
 545         'violet'               => '#ee82ee',
 546         'wheat'                => '#f5deb3',
 547         'whitesmoke'           => '#f5f5f5',
 548         'yellowgreen'          => '#9acd32',
 549     );
 550 }