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 <?php
 /**
  * Zend Framework
  *
  * LICENSE
  *
  * This source file is subject to the new BSD license that is bundled
  * with this package in the file LICENSE.txt.
  * It is also available through the world-wide-web at this URL:
  * http://framework.zend.com/license/new-bsd
  * If you did not receive a copy of the license and are unable to
  * obtain it through the world-wide-web, please send an email
  * to license@zend.com so we can send you a copy immediately.
  *
  * @category   Zend
  * @package    Zend_Pdf
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 
 /** Internally used classes */
 // require_once 'Zend/Pdf/Element/Numeric.php';
 
 
 /** Zend_Pdf_Color */
 // require_once 'Zend/Pdf/Color.php';
 
 /**
  * CMYK color implementation
  *
  * @category   Zend
  * @package    Zend_Pdf
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 class Zend_Pdf_Color_Cmyk extends Zend_Pdf_Color
 {
     /**
      * Cyan level.
      * 0.0 (zero concentration) - 1.0 (maximum concentration)
      *
      * @var Zend_Pdf_Element_Numeric
      */
     private $_c;
 
     /**
      * Magenta level.
      * 0.0 (zero concentration) - 1.0 (maximum concentration)
      *
      * @var Zend_Pdf_Element_Numeric
      */
     private $_m;
 
     /**
      * Yellow level.
      * 0.0 (zero concentration) - 1.0 (maximum concentration)
      *
      * @var Zend_Pdf_Element_Numeric
      */
     private $_y;
 
     /**
      * Key (BlacK) level.
      * 0.0 (zero concentration) - 1.0 (maximum concentration)
      *
      * @var Zend_Pdf_Element_Numeric
      */
     private $_k;
 
 
     /**
      * Object constructor
      *
      * @param float $c
      * @param float $m
      * @param float $y
      * @param float $k
      */
     public function __construct($c, $m, $y, $k)
     {
         if ($c < 0) { $c = 0; }
         if ($c > 1) { $c = 1; }
 
         if ($m < 0) { $m = 0; }
         if ($m > 1) { $m = 1; }
 
         if ($y < 0) { $y = 0; }
         if ($y > 1) { $y = 1; }
 
         if ($k < 0) { $k = 0; }
         if ($k > 1) { $k = 1; }
 
         $this->_c = new Zend_Pdf_Element_Numeric($c);
         $this->_m = new Zend_Pdf_Element_Numeric($m);
         $this->_y = new Zend_Pdf_Element_Numeric($y);
         $this->_k = new Zend_Pdf_Element_Numeric($k);
     }
 
     /**
      * Instructions, which can be directly inserted into content stream
      * to switch color.
      * Color set instructions differ for stroking and nonstroking operations.
      *
      * @param boolean $stroking
      * @return string
      */
     public function instructions($stroking)
     {
         return $this->_c->toString() . ' '
              . $this->_m->toString() . ' '
              . $this->_y->toString() . ' '
              . $this->_k->toString() .     ($stroking? " K\n" : " k\n");
     }
 
     /**
      * Get color components (color space dependent)
      *
      * @return array
      */
     public function getComponents()
     {
         return array($this->_c->value, $this->_m->value, $this->_y->value, $this->_k->value);
     }
 }