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114 lines
3.0 KiB
114 lines
3.0 KiB
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Pdf
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* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: Image.php 20096 2010-01-06 02:05:09Z bkarwin $
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*/
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/** Internally used classes */
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// require_once 'Zend/Pdf/Element/Object.php';
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// require_once 'Zend/Pdf/Element/Dictionary.php';
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// require_once 'Zend/Pdf/Element/Name.php';
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// require_once 'Zend/Pdf/Element/Numeric.php';
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/** Zend_Pdf_Resource */
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// require_once 'Zend/Pdf/Resource.php';
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/**
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* Content stream (drawing instructions container)
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*
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* @package Zend_Pdf
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* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Pdf_Resource_ContentStream extends Zend_Pdf_Resource
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{
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/**
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* Buffered content
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*
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* @var string
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*/
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protected $_bufferedContent = '';
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/**
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* Object constructor.
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*
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* @param Zend_Pdf_Element_Object_Stream|string $contentStreamObject
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* @throws Zend_Pdf_Exception
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*/
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public function __construct($contentStreamObject = '')
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{
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if ($contentStreamObject !== null &&
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!$contentStreamObject instanceof Zend_Pdf_Element_Object_Stream &&
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!is_string($contentStreamObject)
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) {
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// require_once 'Zend/Pdf/Exception.php';
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throw new Zend_Pdf_Exception('Content stream parameter must be a string or stream object');
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}
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parent::__construct($contentStreamObject);
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}
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/**
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* Appends instructions to the end of the content stream
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*
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* @param string $instructions
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* @return Zend_Pdf_Resource_ContentStream
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*/
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public function addInstructions($instructions)
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{
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$this->_bufferedContent .= $instructions;
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return $this;
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}
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/**
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* Get current stream content
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*
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* @return string
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*/
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public function getInstructions()
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{
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$this->flush();
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return $this->_resource->value;
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}
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/**
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* Clear stream content.
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*
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* @return Zend_Pdf_Resource_ContentStream
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*/
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public function clear()
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{
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$this->_resource->value = '';
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$this->_bufferedContent = '';
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return $this;
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}
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/**
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* Flush buffered content
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*/
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public function flush()
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{
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$this->_resource->value .= $this->_bufferedContent;
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$this->_bufferedContent = '';
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return $this;
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}
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}
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