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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) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Cmyk.php 18993 2009-11-15 17:09:16Z alexander $
*/
/** 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) 2005-2009 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);
}
}
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