Decorator

require_once 'polygone.class.php' ;
require_once 'parallelogramme.class.php' ;
require_once 'rectangle.class.php' ;
require_once 'carre.class.php' ;
 
class PolygonColor
{
	private $p ;
	private $color ;
 
	function __construct(Polygone $p)
	{
		$this->p = $p ;
	}
 
	function __call($name, $param)
	{
		return call_user_func_array( array( $this->p, $name) , $param) ;
	}
 
	public function getColor()
	{
		return $this->color ;
	}
 
	public function setColor($red, $green, $blue)
	{
		$this->color['red']   = $red ;
		$this->color['green'] = $green ;
		$this->color['blue']  = $blue ;
	}
}
 
class PolygonColorFormater
{
	private $p ;
 
	function __construct(PolygonColor $p)
	{
		$this->p = $p ;
	}
 
	public function getColor()
	{
		$color = $this->p->getColor() ;
 
		return sprintf(
			'#%X%X%X',
			$color['red'],
			$color['green'],
			$color['blue']
		) ;
	}
 
	function __call($name, $param)
	{
		return call_user_func_array( array( $this->p, $name) , $param) ;
	}
}
 
$rectangle = new PolygonColorFormater(new PolygonColor( new Rectangle(5,2) )) ;
echo $rectangle->aire() ;
 
$rectangle->setColor(50, 30, 78) ;
var_dump($rectangle->getColor()) ;