vendor/phenx/php-svg-lib/src/Svg/Tag/LinearGradient.php

   1 <?php
   2 /**
   3  * @package php-svg-lib
   4  * @link    http://github.com/PhenX/php-svg-lib
   5  * @author  Fabien Ménager <fabien.menager@gmail.com>
   6  * @license GNU LGPLv3+ http://www.gnu.org/copyleft/lesser.html
   7  */
   8
   9 namespace Svg\Tag;
  10
  11
  12 use Svg\Gradient;
  13 use Svg\Style;
  14
  15 class LinearGradient extends AbstractTag
  16 {
  17     protected $x1;
  18     protected $y1;
  19     protected $x2;
  20     protected $y2;
  21
  22     /** @var Gradient\Stop[] */
  23     protected $stops = array();
  24
  25     public function start($attributes)
  26     {
  27         parent::start($attributes);
  28
  29         if (isset($attributes['x1'])) {
  30             $this->x1 = $attributes['x1'];
  31         }
  32         if (isset($attributes['y1'])) {
  33             $this->y1 = $attributes['y1'];
  34         }
  35         if (isset($attributes['x2'])) {
  36             $this->x2 = $attributes['x2'];
  37         }
  38         if (isset($attributes['y2'])) {
  39             $this->y2 = $attributes['y2'];
  40         }
  41     }
  42
  43     public function getStops() {
  44         if (empty($this->stops)) {
  45             foreach ($this->children as $_child) {
  46                 if ($_child->tagName != "stop") {
  47                     continue;
  48                 }
  49
  50                 $_stop = new Gradient\Stop();
  51                 $_attributes = $_child->attributes;
  52
  53                 // Style
  54                 if (isset($_attributes["style"])) {
  55                     $_style = Style::parseCssStyle($_attributes["style"]);
  56
  57                     if (isset($_style["stop-color"])) {
  58                         $_stop->color = Style::parseColor($_style["stop-color"]);
  59                     }
  60
  61                     if (isset($_style["stop-opacity"])) {
  62                         $_stop->opacity = max(0, min(1.0, $_style["stop-opacity"]));
  63                     }
  64                 }
  65
  66                 // Attributes
  67                 if (isset($_attributes["offset"])) {
  68                     $_stop->offset = $_attributes["offset"];
  69                 }
  70                 if (isset($_attributes["stop-color"])) {
  71                     $_stop->color = Style::parseColor($_attributes["stop-color"]);
  72                 }
  73                 if (isset($_attributes["stop-opacity"])) {
  74                     $_stop->opacity = max(0, min(1.0, $_attributes["stop-opacity"]));
  75                 }
  76
  77                 $this->stops[] = $_stop;
  78             }
  79         }
  80
  81         return $this->stops;
  82     }
  83 }