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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) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Color.php 20096 2010-01-06 02:05:09Z bkarwin $
*/
/**
* PDF provides a powerfull facilities for specifying the colors of graphics objects.
* This class encapsulates color behaviour.
*
* Some colors interact with PDF document (create additional objects in a PDF),
* others don't do it. That is defined in a subclasses.
*
* @package Zend_Pdf
* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
abstract class Zend_Pdf_Color
{
/**
* Instructions, which can be directly inserted into content stream
* to switch color.
* Color set instructions differ for stroking and nonstroking operations.
*
* @param boolean $stroking
* @return string
*/
abstract public function instructions($stroking);
/**
* Get color components (color space dependent)
*
* @return array
*/
abstract public function getComponents();
}
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