vendor/phenx/php-svg-lib/src/Svg/Tag/UseTag.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\Tag;
  10
  11 class UseTag extends AbstractTag
  12 {
  13     protected $x = 0;
  14     protected $y = 0;
  15     protected $width;
  16     protected $height;
  17
  18     /** @var AbstractTag */
  19     protected $reference;
  20
  21     protected function before($attributes)
  22     {
  23         if (isset($attributes['x'])) {
  24             $this->x = $attributes['x'];
  25         }
  26         if (isset($attributes['y'])) {
  27             $this->y = $attributes['y'];
  28         }
  29
  30         if (isset($attributes['width'])) {
  31             $this->width = $attributes['width'];
  32         }
  33         if (isset($attributes['height'])) {
  34             $this->height = $attributes['height'];
  35         }
  36
  37         parent::before($attributes);
  38
  39         $document = $this->getDocument();
  40
  41         $link = $attributes["xlink:href"];
  42         $this->reference = $document->getDef($link);
  43
  44         if ($this->reference) {
  45             $this->reference->before($attributes);
  46         }
  47
  48         $surface = $document->getSurface();
  49         $surface->save();
  50
  51         $surface->translate($this->x, $this->y);
  52     }
  53
  54     protected function after() {
  55         parent::after();
  56
  57         if ($this->reference) {
  58             $this->reference->after();
  59         }
  60
  61         $this->getDocument()->getSurface()->restore();
  62     }
  63
  64     public function handle($attributes)
  65     {
  66         parent::handle($attributes);
  67
  68         if (!$this->reference) {
  69             return;
  70         }
  71
  72         $attributes = array_merge($this->reference->attributes, $attributes);
  73
  74         $this->reference->handle($attributes);
  75
  76         foreach ($this->reference->children as $_child) {
  77             $_attributes = array_merge($_child->attributes, $attributes);
  78             $_child->handle($_attributes);
  79         }
  80     }
  81
  82     public function handleEnd()
  83     {
  84         parent::handleEnd();
  85
  86         if (!$this->reference) {
  87             return;
  88         }
  89
  90         $this->reference->handleEnd();
  91
  92         foreach ($this->reference->children as $_child) {
  93             $_child->handleEnd();
  94         }
  95     }
  96 }