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   1  <?php
   2  
   3  /**
   4   * Alpha
   5   *
   6   * @package Less
   7   * @subpackage tree
   8   */
   9  class Less_Tree_Alpha extends Less_Tree{
  10      public $value;
  11      public $type = 'Alpha';
  12  
  13  	public function __construct($val){
  14          $this->value = $val;
  15      }
  16  
  17      //function accept( $visitor ){
  18      //    $this->value = $visitor->visit( $this->value );
  19      //}
  20  
  21  	public function compile($env){
  22  
  23          if( is_object($this->value) ){
  24              $this->value = $this->value->compile($env);
  25          }
  26  
  27          return $this;
  28      }
  29  
  30      /**
  31       * @see Less_Tree::genCSS
  32       */
  33  	public function genCSS( $output ){
  34  
  35          $output->add( "alpha(opacity=" );
  36  
  37          if( is_string($this->value) ){
  38              $output->add( $this->value );
  39          }else{
  40              $this->value->genCSS( $output);
  41          }
  42  
  43          $output->add( ')' );
  44      }
  45  
  46  	public function toCSS(){
  47          return "alpha(opacity=" . (is_string($this->value) ? $this->value : $this->value->toCSS()) . ")";
  48      }
  49  
  50  
  51  }